diff --git a/Dockerfile b/Dockerfile
index b53b9fead..cab4dd12c 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -18,7 +18,7 @@ RUN printf "deb     http://mirror.steadfast.net/debian/    stable main contrib n
 RUN printf "deb     http://mirror.steadfast.net/debian/    testing main contrib non-free\ndeb-src http://mirror.steadfast.net/debian/    testing main contrib non-free" > /etc/apt/sources.list.d/testing.list
 
 # Install Node.js GDAL, nginx, letsencrypt, psql
-RUN apt-get -qq update && apt-get -qq install -t testing -y binutils libproj-dev gdal-bin nginx && apt-get -qq install -y gettext-base cron certbot postgresql-client-9.6
+RUN apt-get -qq update && apt-get -qq install -t testing -y binutils libproj-dev gdal-bin nginx grass-core && apt-get -qq install -y gettext-base cron certbot postgresql-client-9.6
 
 
 # Install pip reqs
diff --git a/README.md b/README.md
index 45032e7a7..4709b4330 100644
--- a/README.md
+++ b/README.md
@@ -189,7 +189,7 @@ Developer, I'm looking to build an app that will stay behind a firewall and just
 - [X] 2D Map Display 
 - [X] 3D Model Display
 - [ ] NDVI display
-- [ ] Volumetric Measurements
+- [X] Volumetric Measurements
 - [X] Cluster management and setup.
 - [ ] Mission Planner
 - [X] Plugins/Webhooks System
diff --git a/app/api/tasks.py b/app/api/tasks.py
index 994e502be..e5d3b1cd1 100644
--- a/app/api/tasks.py
+++ b/app/api/tasks.py
@@ -21,7 +21,6 @@ class TaskIDsSerializer(serializers.BaseSerializer):
     def to_representation(self, obj):
         return obj.id
 
-
 class TaskSerializer(serializers.ModelSerializer):
     project = serializers.PrimaryKeyRelatedField(queryset=models.Project.objects.all())
     processing_node = serializers.PrimaryKeyRelatedField(queryset=ProcessingNode.objects.all()) 
@@ -193,15 +192,15 @@ class TaskNestedView(APIView):
     queryset = models.Task.objects.all().defer('orthophoto_extent', 'dtm_extent', 'dsm_extent', 'console_output', )
     permission_classes = (IsAuthenticatedOrReadOnly, )
 
-    def get_and_check_task(self, request, pk, project_pk, annotate={}):
+    def get_and_check_task(self, request, pk, annotate={}):
         try:
-            task = self.queryset.annotate(**annotate).get(pk=pk, project=project_pk)
+            task = self.queryset.annotate(**annotate).get(pk=pk)
         except (ObjectDoesNotExist, ValidationError):
             raise exceptions.NotFound()
 
         # Check for permissions, unless the task is public
         if not task.public:
-            get_and_check_project(request, project_pk)
+            get_and_check_project(request, task.project.id)
 
         return task
 
@@ -211,7 +210,7 @@ def get(self, request, pk=None, project_pk=None, tile_type="", z="", x="", y="")
         """
         Get a tile image
         """
-        task = self.get_and_check_task(request, pk, project_pk)
+        task = self.get_and_check_task(request, pk)
         tile_path = task.get_tile_path(tile_type, z, x, y)
         if os.path.isfile(tile_path):
             tile = open(tile_path, "rb")
@@ -225,7 +224,7 @@ def get(self, request, pk=None, project_pk=None, tile_type=""):
         """
         Get tile.json for this tasks's asset type
         """
-        task = self.get_and_check_task(request, pk, project_pk)
+        task = self.get_and_check_task(request, pk)
 
         extent_map = {
             'orthophoto': task.orthophoto_extent,
@@ -256,7 +255,7 @@ def get(self, request, pk=None, project_pk=None, asset=""):
             """
             Downloads a task asset (if available)
             """
-            task = self.get_and_check_task(request, pk, project_pk)
+            task = self.get_and_check_task(request, pk)
 
             # Check and download
             try:
@@ -284,7 +283,7 @@ def get(self, request, pk=None, project_pk=None, unsafe_asset_path=""):
         """
         Downloads a task asset (if available)
         """
-        task = self.get_and_check_task(request, pk, project_pk)
+        task = self.get_and_check_task(request, pk)
 
         # Check for directory traversal attacks
         try:
diff --git a/app/api/urls.py b/app/api/urls.py
index 4b57ec80f..f9e1b1d60 100644
--- a/app/api/urls.py
+++ b/app/api/urls.py
@@ -1,6 +1,7 @@
 from django.conf.urls import url, include
 
 from app.api.presets import PresetViewSet
+from app.plugins import get_api_url_patterns
 from .projects import ProjectViewSet
 from .tasks import TaskViewSet, TaskTiles, TaskTilesJson, TaskDownloads, TaskAssets
 from .processingnodes import ProcessingNodeViewSet, ProcessingNodeOptionsView
@@ -31,4 +32,6 @@
 
     url(r'^auth/', include('rest_framework.urls')),
     url(r'^token-auth/', obtain_jwt_token),
-]
\ No newline at end of file
+]
+
+urlpatterns += get_api_url_patterns()
\ No newline at end of file
diff --git a/app/boot.py b/app/boot.py
index 0e0a4dd79..ea8987154 100644
--- a/app/boot.py
+++ b/app/boot.py
@@ -3,7 +3,7 @@
 import kombu
 from django.contrib.auth.models import Permission
 from django.contrib.auth.models import User, Group
-from django.core.exceptions import ObjectDoesNotExist
+from django.core.exceptions import ObjectDoesNotExist, MultipleObjectsReturned
 from django.core.files import File
 from django.db.utils import ProgrammingError
 from guardian.shortcuts import assign_perm
@@ -35,6 +35,10 @@ def boot():
     if settings.DEBUG:
        logger.warning("Debug mode is ON (for development this is OK)")
 
+    # Make sure our app/media/tmp folder exists
+    if not os.path.exists(settings.MEDIA_TMP):
+        os.mkdir(settings.MEDIA_TMP)
+
     # Check default group
     try:
         default_group, created = Group.objects.get_or_create(name='Default')
@@ -60,18 +64,7 @@ def boot():
         # Add permission to view processing nodes
         default_group.permissions.add(Permission.objects.get(codename="view_processingnode"))
 
-        # Add default presets
-        Preset.objects.get_or_create(name='DSM + DTM', system=True,
-                                     options=[{'name': 'dsm', 'value': True}, {'name': 'dtm', 'value': True},  {'name': 'mesh-octree-depth', 'value': 11}])
-        Preset.objects.get_or_create(name='Fast Orthophoto', system=True,
-                                     options=[{'name': 'fast-orthophoto', 'value': True}])
-        Preset.objects.get_or_create(name='High Quality', system=True,
-                                                  options=[{'name': 'dsm', 'value': True},
-                                                           {'name': 'mesh-octree-depth', 'value': "12"},
-                                                           {'name': 'dem-resolution', 'value': "0.04"},
-                                                           {'name': 'orthophoto-resolution', 'value': "40"},
-                                                        ])
-        Preset.objects.get_or_create(name='Default', system=True, options=[{'name': 'dsm', 'value': True}, {'name': 'mesh-octree-depth', 'value': 11}])
+        add_default_presets()
 
         # Add settings
         default_theme, created = Theme.objects.get_or_create(name='Default')
@@ -101,4 +94,29 @@ def boot():
 
 
     except ProgrammingError:
-        logger.warning("Could not touch the database. If running a migration, this is expected.")
\ No newline at end of file
+        logger.warning("Could not touch the database. If running a migration, this is expected.")
+
+
+def add_default_presets():
+    try:
+        Preset.objects.update_or_create(name='DSM + DTM', system=True,
+                                        defaults={
+                                            'options': [{'name': 'dsm', 'value': True}, {'name': 'dtm', 'value': True},
+                                                        {'name': 'mesh-octree-depth', 'value': 6}]})
+        Preset.objects.update_or_create(name='Fast Orthophoto', system=True,
+                                        defaults={'options': [{'name': 'fast-orthophoto', 'value': True}]})
+        Preset.objects.update_or_create(name='High Quality', system=True,
+                                        defaults={'options': [{'name': 'dsm', 'value': True},
+                                                              {'name': 'mesh-octree-depth', 'value': "12"},
+                                                              {'name': 'dem-resolution', 'value': "0.04"},
+                                                              {'name': 'orthophoto-resolution', 'value': "40"},
+                                                              ]})
+        Preset.objects.update_or_create(name='Default', system=True,
+                                        defaults={'options': [{'name': 'dsm', 'value': True},
+                                                              {'name': 'mesh-octree-depth', 'value': 6}]})
+    except MultipleObjectsReturned:
+        # Mostly to handle a legacy code problem where
+        # multiple system presets with the same name were
+        # created if we changed the options
+        Preset.objects.filter(system=True).delete()
+        add_default_presets()
diff --git a/app/models/task.py b/app/models/task.py
index 942aef783..569df1183 100644
--- a/app/models/task.py
+++ b/app/models/task.py
@@ -578,7 +578,7 @@ def set_failure(self, error_message):
         self.status = status_codes.FAILED
         self.pending_action = None
         self.save()
-
+        
     def find_all_files_matching(self, regex):
         directory = full_task_directory_path(self.id, self.project.id)
         return [os.path.join(directory, f) for f in os.listdir(directory) if
diff --git a/app/plugins/functions.py b/app/plugins/functions.py
index e49e50138..28e2ab43d 100644
--- a/app/plugins/functions.py
+++ b/app/plugins/functions.py
@@ -1,6 +1,7 @@
 import os
 import logging
 import importlib
+import subprocess
 
 import django
 import json
@@ -13,30 +14,57 @@
 
 def register_plugins():
     for plugin in get_active_plugins():
+
+        # Check for package.json in public directory
+        # and run npm install if needed
+        if plugin.path_exists("public/package.json") and not plugin.path_exists("public/node_modules"):
+            logger.info("Running npm install for {}".format(plugin.get_name()))
+            subprocess.call(['npm', 'install'], cwd=plugin.get_path("public"))
+
+        # Check for webpack.config.js (if we need to build it)
+        if plugin.path_exists("public/webpack.config.js") and not plugin.path_exists("public/build"):
+            logger.info("Running webpack for {}".format(plugin.get_name()))
+            subprocess.call(['webpack'], cwd=plugin.get_path("public"))
+
         plugin.register()
         logger.info("Registered {}".format(plugin))
 
 
-def get_url_patterns():
+def get_app_url_patterns():
     """
-    @return the patterns to expose the /public directory of each plugin (if needed)
+    @return the patterns to expose the /public directory of each plugin (if needed) and
+        each mount point
     """
     url_patterns = []
     for plugin in get_active_plugins():
-        for mount_point in plugin.mount_points():
+        for mount_point in plugin.app_mount_points():
             url_patterns.append(url('^plugins/{}/{}'.format(plugin.get_name(), mount_point.url),
                                 mount_point.view,
                                 *mount_point.args,
                                 **mount_point.kwargs))
 
-        if plugin.has_public_path():
+        if plugin.path_exists("public"):
             url_patterns.append(url('^plugins/{}/(.*)'.format(plugin.get_name()),
                                     django.views.static.serve,
                                     {'document_root': plugin.get_path("public")}))
 
+    return url_patterns
+
+def get_api_url_patterns():
+    """
+    @return the patterns to expose the plugin API mount points (if any)
+    """
+    url_patterns = []
+    for plugin in get_active_plugins():
+        for mount_point in plugin.api_mount_points():
+            url_patterns.append(url('^plugins/{}/{}'.format(plugin.get_name(), mount_point.url),
+                                mount_point.view,
+                                *mount_point.args,
+                                **mount_point.kwargs))
 
     return url_patterns
 
+
 plugins = None
 def get_active_plugins():
     # Cache plugins search
@@ -86,6 +114,12 @@ def get_active_plugins():
     return plugins
 
 
+def get_plugin_by_name(name):
+    plugins = get_active_plugins()
+    res = list(filter(lambda p: p.get_name() == name, plugins))
+    return res[0] if res else None
+
+
 def get_plugins_path():
     current_path = os.path.dirname(os.path.realpath(__file__))
     return os.path.abspath(os.path.join(current_path, "..", "..", "plugins"))
diff --git a/app/plugins/grass_engine.py b/app/plugins/grass_engine.py
new file mode 100644
index 000000000..5d400945c
--- /dev/null
+++ b/app/plugins/grass_engine.py
@@ -0,0 +1,117 @@
+import logging
+import shutil
+import tempfile
+import subprocess
+import os
+import geojson
+
+from string import Template
+
+from webodm import settings
+
+logger = logging.getLogger('app.logger')
+
+class GrassEngine:
+    def __init__(self):
+        self.grass_binary = shutil.which('grass7') or \
+                            shutil.which('grass72') or \
+                            shutil.which('grass74') or \
+                            shutil.which('grass76')
+
+        if self.grass_binary is None:
+            logger.warning("Could not find a GRASS 7 executable. GRASS scripts will not work.")
+        else:
+            logger.info("Initializing GRASS engine using {}".format(self.grass_binary))
+
+    def create_context(self, serialized_context = {}):
+        if self.grass_binary is None: raise GrassEngineException("GRASS engine is unavailable")
+        return GrassContext(self.grass_binary, **serialized_context)
+
+
+class GrassContext:
+    def __init__(self, grass_binary, tmpdir = None, template_args = {}, location = None):
+        self.grass_binary = grass_binary
+        if tmpdir is None:
+            tmpdir = os.path.basename(tempfile.mkdtemp('_grass_engine', dir=settings.MEDIA_TMP))
+        self.tmpdir = tmpdir
+        self.template_args = template_args
+        self.location = location
+
+    def get_cwd(self):
+        return os.path.join(settings.MEDIA_TMP, self.tmpdir)
+
+    def add_file(self, filename, source, use_as_location=False):
+        param = os.path.splitext(filename)[0] # filename without extension
+
+        dst_path = os.path.abspath(os.path.join(self.get_cwd(), filename))
+        with open(dst_path, 'w') as f:
+            f.write(source)
+        self.template_args[param] = dst_path
+
+        if use_as_location:
+            self.set_location(self.template_args[param])
+
+        return dst_path
+
+    def add_param(self, param, value):
+        self.template_args[param] = value
+
+    def set_location(self, location):
+        """
+        :param location: either a "epsg:XXXXX" string or a path to a geospatial file defining the location
+        """
+        if not location.startswith('epsg:'):
+            location = os.path.abspath(location)
+        self.location = location
+
+    def execute(self, script):
+        """
+        :param script: path to .grass script
+        :return: script output
+        """
+        if self.location is None: raise GrassEngineException("Location is not set")
+
+        script = os.path.abspath(script)
+
+        # Create grass script via template substitution
+        try:
+            with open(script) as f:
+                script_content = f.read()
+        except FileNotFoundError:
+            raise GrassEngineException("Script does not exist: {}".format(script))
+
+        tmpl = Template(script_content)
+
+        # Write script to disk
+        with open(os.path.join(self.get_cwd(), 'script.sh'), 'w') as f:
+            f.write(tmpl.substitute(self.template_args))
+
+        # Execute it
+        p = subprocess.Popen([self.grass_binary, '-c', self.location, 'location', '--exec', 'sh', 'script.sh'],
+                             cwd=self.get_cwd(), stdout=subprocess.PIPE, stderr=subprocess.PIPE)
+        out, err = p.communicate()
+
+        out = out.decode('utf-8').strip()
+        err = err.decode('utf-8').strip()
+
+        if p.returncode == 0:
+            return out
+        else:
+            raise GrassEngineException("Could not execute GRASS script {} from {}: {}".format(script, self.get_cwd(), err))
+
+    def serialize(self):
+        return {
+            'tmpdir': self.tmpdir,
+            'template_args': self.template_args,
+            'location': self.location
+        }
+
+    def __del__(self):
+        # Cleanup
+        if os.path.exists(self.get_cwd()):
+            shutil.rmtree(self.get_cwd())
+
+class GrassEngineException(Exception):
+    pass
+
+grass = GrassEngine()
\ No newline at end of file
diff --git a/app/plugins/mount_point.py b/app/plugins/mount_point.py
index b1cd8fba6..e6cf4f2b4 100644
--- a/app/plugins/mount_point.py
+++ b/app/plugins/mount_point.py
@@ -5,7 +5,7 @@ def __init__(self, url, view, *args, **kwargs):
         """
 
         :param url: path to mount this view to, relative to plugins directory
-        :param view: Django view
+        :param view: Django/DjangoRestFramework view
         :param args: extra args to pass to url() call
         :param kwargs: extra kwargs to pass to url() call
         """
diff --git a/app/plugins/plugin_base.py b/app/plugins/plugin_base.py
index d9b5a996d..83244aa9f 100644
--- a/app/plugins/plugin_base.py
+++ b/app/plugins/plugin_base.py
@@ -46,8 +46,8 @@ def template_path(self, path):
         """
         return "plugins/{}/templates/{}".format(self.get_name(), path)
 
-    def has_public_path(self):
-        return os.path.isdir(self.get_path("public"))
+    def path_exists(self, path):
+        return os.path.exists(self.get_path(path))
 
     def include_js_files(self):
         """
@@ -73,7 +73,7 @@ def main_menu(self):
         """
         return []
 
-    def mount_points(self):
+    def app_mount_points(self):
         """
         Should be overriden by plugins that want to connect
         custom Django views
@@ -81,5 +81,13 @@ def mount_points(self):
         """
         return []
 
+    def api_mount_points(self):
+        """
+        Should be overriden by plugins that want to add
+        new API mount points
+        :return: [] of MountPoint objects
+        """
+        return []
+
     def __str__(self):
         return "[{}]".format(self.get_module_name())
\ No newline at end of file
diff --git a/app/static/app/css/theme.scss b/app/static/app/css/theme.scss
index b9c7b1483..ada5b17d8 100644
--- a/app/static/app/css/theme.scss
+++ b/app/static/app/css/theme.scss
@@ -200,7 +200,7 @@ pre.prettyprint,
 }
 
 /* Failed */
-.task-list-item .status-label.error{
+.task-list-item .status-label.error, .theme-background-failed{
 	background-color: theme("failed");
 }
 
diff --git a/app/static/app/js/classes/plugins/API.js b/app/static/app/js/classes/plugins/API.js
index c604cc82e..d469304d0 100644
--- a/app/static/app/js/classes/plugins/API.js
+++ b/app/static/app/js/classes/plugins/API.js
@@ -11,10 +11,17 @@ if (!window.PluginsAPI){
   SystemJS.config({
     baseURL: '/plugins',
     map: {
-      css: '/static/app/js/vendor/css.js'
+      'css': '/static/app/js/vendor/css.js',
+      'globals-loader': '/static/app/js/vendor/globals-loader.js'
     },
     meta: {
-      '*.css': { loader: 'css' }
+      '*.css': { loader: 'css' },
+
+      // Globals always available in the window object
+      'jQuery': { loader: 'globals-loader', exports: '$' },
+      'leaflet': { loader: 'globals-loader', exports: 'L' },
+      'ReactDOM': { loader: 'globals-loader', exports: 'ReactDOM' },
+      'React': { loader: 'globals-loader', exports: 'React' }
     }
   });
 
diff --git a/app/static/app/js/classes/plugins/ApiFactory.js b/app/static/app/js/classes/plugins/ApiFactory.js
index 03205c680..239b49fec 100644
--- a/app/static/app/js/classes/plugins/ApiFactory.js
+++ b/app/static/app/js/classes/plugins/ApiFactory.js
@@ -41,11 +41,16 @@ export default class ApiFactory{
       };
     }
 
-    const obj = {};
+    let obj = {};
     api.endpoints.forEach(endpoint => {
       if (!Array.isArray(endpoint)) endpoint = [endpoint];
       addEndpoint(obj, ...endpoint);
     });
+
+    if (api.helpers){
+      obj = Object.assign(obj, api.helpers);
+    }
+
     return obj;
   }
 
diff --git a/app/static/app/js/classes/plugins/Map.js b/app/static/app/js/classes/plugins/Map.js
index 368c861df..bb32622d9 100644
--- a/app/static/app/js/classes/plugins/Map.js
+++ b/app/static/app/js/classes/plugins/Map.js
@@ -1,4 +1,5 @@
 import Utils from '../Utils';
+import L from 'leaflet';
 
 const { assert } = Utils;
 
diff --git a/app/static/app/js/components/Map.jsx b/app/static/app/js/components/Map.jsx
index 9d96478fc..a385b5fa6 100644
--- a/app/static/app/js/components/Map.jsx
+++ b/app/static/app/js/components/Map.jsx
@@ -268,7 +268,7 @@ class Map extends React.Component {
 
   handleMapMouseDown(e){
     // Make sure the share popup closes
-    this.shareButton.hidePopup();
+    if (this.sharePopup) this.shareButton.hidePopup();
   }
 
   render() {
diff --git a/app/static/app/js/css/Map.scss b/app/static/app/js/css/Map.scss
index ae2b1758d..56fcc89c3 100644
--- a/app/static/app/js/css/Map.scss
+++ b/app/static/app/js/css/Map.scss
@@ -16,10 +16,17 @@
         }
     }
 
+    .leaflet-right .leaflet-control,
     .leaflet-control-measure.leaflet-control{
         margin-right: 12px;
     }
 
+    .leaflet-touch .leaflet-control-layers-toggle{
+        width: 30px;
+        height: 30px;
+        background-size: 20px;
+    }
+
     .popup-opacity-slider{
         margin-bottom: 6px;
     }
diff --git a/app/static/app/js/main.jsx b/app/static/app/js/main.jsx
index a867a0948..6bad3c376 100644
--- a/app/static/app/js/main.jsx
+++ b/app/static/app/js/main.jsx
@@ -1,10 +1,13 @@
 import '../css/main.scss';
 import './django/csrf';
 import ReactDOM from 'react-dom';
+import React from 'react';
 import PluginsAPI from './classes/plugins/API';
 
 // Main is always executed first in the page
 
-// We share the ReactDOM object to avoid having to include it
+// We share some objects to avoid having to include them
 // as a dependency in each component (adds too much space overhead)
 window.ReactDOM = ReactDOM;
+window.React = React;
+
diff --git a/app/static/app/js/vendor/globals-loader.js b/app/static/app/js/vendor/globals-loader.js
new file mode 100644
index 000000000..7bf598062
--- /dev/null
+++ b/app/static/app/js/vendor/globals-loader.js
@@ -0,0 +1,15 @@
+/*
+  SystemJS Globals loader plugin
+  Piero Toffanin 2018
+*/
+
+// this code simply allows loading of global modules
+// that are already defined in the window object
+exports.fetch = function(load) {
+  var moduleName = load.name.split("/").pop();
+  return moduleName;
+}
+
+exports.instantiate = function(load){
+  return window[load.source] || window[load.metadata.exports];
+}
\ No newline at end of file
diff --git a/app/tests/test_plugins.py b/app/tests/test_plugins.py
index 349e8def2..004d6e9cc 100644
--- a/app/tests/test_plugins.py
+++ b/app/tests/test_plugins.py
@@ -1,6 +1,9 @@
+import os
+
 from django.test import Client
 from rest_framework import status
 
+from app.plugins import get_plugin_by_name
 from .classes import BootTestCase
 
 class TestPlugins(BootTestCase):
@@ -37,6 +40,10 @@ def test_core_plugins(self):
         # And our menu entry
         self.assertContains(res, '<li><a href="/plugins/test/menu_url/"><i class="test-icon"></i> Test</a></li>', html=True)
 
+        # A node_modules directory has been created as a result of npm install
+        # because we have a package.json in the public director
+        test_plugin = get_plugin_by_name("test")
+        self.assertTrue(os.path.exists(test_plugin.get_path("public/node_modules")))
+
         # TODO:
-        # test API endpoints
-        # test python hooks
+        # test GRASS engine
diff --git a/app/urls.py b/app/urls.py
index 248e80e30..2e86eeb66 100644
--- a/app/urls.py
+++ b/app/urls.py
@@ -4,7 +4,7 @@
 from django.template import RequestContext
 
 from .views import app as app_views, public as public_views
-from .plugins import get_url_patterns
+from .plugins import get_app_url_patterns
 
 from app.boot import boot
 from webodm import settings
@@ -30,7 +30,7 @@
 
 # TODO: is there a way to place plugins /public directories
 # into the static build directories and let nginx serve them?
-urlpatterns += get_url_patterns()
+urlpatterns += get_app_url_patterns()
 
 handler404 = app_views.handler404
 handler500 = app_views.handler500
diff --git a/package.json b/package.json
index b68ed5417..719a73625 100644
--- a/package.json
+++ b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "WebODM",
-  "version": "0.5.0",
+  "version": "0.5.1",
   "description": "Open Source Drone Image Processing",
   "main": "index.js",
   "scripts": {
@@ -42,7 +42,7 @@
     "immutability-helper": "^2.0.0",
     "jest": "^21.0.1",
     "json-loader": "^0.5.4",
-    "leaflet": "^1.0.1",
+    "leaflet": "^1.3.1",
     "node-sass": "^3.10.1",
     "object.values": "^1.0.3",
     "proj4": "^2.4.3",
diff --git a/plugins/measure/api.py b/plugins/measure/api.py
new file mode 100644
index 000000000..d86d321cf
--- /dev/null
+++ b/plugins/measure/api.py
@@ -0,0 +1,55 @@
+import os
+
+import json
+from rest_framework import serializers
+from rest_framework import status
+from rest_framework.response import Response
+
+from app.api.tasks import TaskNestedView
+
+from worker.tasks import execute_grass_script
+
+from app.plugins.grass_engine import grass, GrassEngineException
+from geojson import Feature, Point, FeatureCollection
+
+class GeoJSONSerializer(serializers.Serializer):
+    area = serializers.JSONField(help_text="Polygon contour defining the volume area to compute")
+
+
+class TaskVolume(TaskNestedView):
+    def post(self, request, pk=None):
+        task = self.get_and_check_task(request, pk)
+        if task.dsm_extent is None:
+            return Response({'error': 'No surface model available'})
+
+        serializer = GeoJSONSerializer(data=request.data)
+        serializer.is_valid(raise_exception=True)
+
+        area = serializer['area'].value
+        points = FeatureCollection([Feature(geometry=Point(coords)) for coords in area['geometry']['coordinates'][0]])
+        dsm = os.path.abspath(task.get_asset_download_path("dsm.tif"))
+
+        try:
+            context = grass.create_context()
+            context.add_file('area_file.geojson', json.dumps(area))
+            context.add_file('points_file.geojson', str(points))
+            context.add_param('dsm_file', dsm)
+            context.set_location(dsm)
+
+            output = execute_grass_script.delay(os.path.join(
+                os.path.dirname(os.path.abspath(__file__)),
+                "calc_volume.grass"
+            ), context.serialize()).get()
+            if isinstance(output, dict) and 'error' in output: raise GrassEngineException(output['error'])
+
+            cols = output.split(':')
+            if len(cols) == 7:
+                return Response({'volume': str(abs(float(cols[6])))}, status=status.HTTP_200_OK)
+            else:
+                raise GrassEngineException(output)
+        except GrassEngineException as e:
+            return Response({'error': str(e)}, status=status.HTTP_200_OK)
+
+
+
+
diff --git a/plugins/measure/calc_volume.grass b/plugins/measure/calc_volume.grass
new file mode 100755
index 000000000..b990287ed
--- /dev/null
+++ b/plugins/measure/calc_volume.grass
@@ -0,0 +1,26 @@
+# area_file: Geospatial file containing the area to measure
+# points_file: Geospatial file containing the points defining the area
+# dsm_file: GeoTIFF DEM containing the surface
+# ------
+# output: prints the volume to stdout
+
+v.import input=${area_file} output=polygon_area --overwrite 
+v.import input=${points_file} output=polygon_points --overwrite
+v.buffer -s --overwrite input=polygon_area type=area output=region distance=3 minordistance=3
+r.external input=${dsm_file} output=dsm --overwrite
+
+g.region rast=dsm
+g.region vector=region
+
+# prevent : removing eventual existing mask
+r.mask -r
+r.mask vect=region
+
+v.what.rast map=polygon_points raster=dsm column=height
+v.to.rast input=polygon_area output=r_polygon_area use=val value=255 --overwrite
+
+#v.surf.rst --overwrite input=polygon_points zcolumn=height elevation=dsm_below_pile mask=r_polygon_area
+v.surf.bspline --overwrite input=polygon_points column=height raster_output=dsm_below_pile lambda_i=100
+
+r.mapcalc expression='pile_height_above_dsm=dsm-dsm_below_pile' --overwrite
+r.volume -f input=pile_height_above_dsm clump=r_polygon_area
diff --git a/plugins/measure/manifest.json b/plugins/measure/manifest.json
index 8cc635de7..727b790f7 100644
--- a/plugins/measure/manifest.json
+++ b/plugins/measure/manifest.json
@@ -1,13 +1,13 @@
 {
-	"name": "Area/Length Measurements",
+	"name": "Volume/Area/Length Measurements",
 	"webodmMinVersion": "0.5.0",
-	"description": "A plugin to compute area and length measurements on Leaflet",
+	"description": "A plugin to compute volume, area and length measurements on Leaflet",
 	"version": "0.1.0",
-	"author": "Piero Toffanin",
+	"author": "Abdelkoddouss Izem, Piero Toffanin",
 	"email": "pt@masseranolabs.com",
 	"repository": "https://github.com/OpenDroneMap/WebODM",
-	"tags": ["area", "length", "measurements"],
+	"tags": ["volume", "area", "length", "measurements"],
 	"homepage": "https://github.com/OpenDroneMap/WebODM",
-	"experimental": false,
+	"experimental": true,
 	"deprecated": false
 }
\ No newline at end of file
diff --git a/plugins/measure/plugin.py b/plugins/measure/plugin.py
index ac51ce355..9576fd0b4 100644
--- a/plugins/measure/plugin.py
+++ b/plugins/measure/plugin.py
@@ -1,5 +1,12 @@
+from app.plugins import MountPoint
 from app.plugins import PluginBase
+from .api import TaskVolume
 
 class Plugin(PluginBase):
     def include_js_files(self):
-    	return ['main.js']
+        return ['main.js']
+
+    def api_mount_points(self):
+        return [
+            MountPoint('task/(?P<pk>[^/.]+)/volume', TaskVolume.as_view())
+        ]
diff --git a/plugins/measure/public/MeasurePopup.jsx b/plugins/measure/public/MeasurePopup.jsx
new file mode 100644
index 000000000..a59dae383
--- /dev/null
+++ b/plugins/measure/public/MeasurePopup.jsx
@@ -0,0 +1,103 @@
+import React from 'react';
+import PropTypes from 'prop-types';
+import './MeasurePopup.scss';
+import $ from 'jquery';
+import L from 'leaflet';
+
+module.exports = class MeasurePopup extends React.Component {
+  static defaultProps = {
+    map: {}, 
+    model: {},
+    resultFeature: {}
+  };
+  static propTypes = {
+    map: PropTypes.object.isRequired,
+    model: PropTypes.object.isRequired,
+    resultFeature: PropTypes.object.isRequired
+  }
+
+  constructor(props){
+    super(props);
+
+    this.state = {
+        volume: null, // to be calculated
+        error: ""
+    };
+  }
+
+  componentDidMount(){
+    this.calculateVolume();
+  }
+
+  calculateVolume(){
+    const { lastCoord } = this.props.model;
+    let layers = this.getLayersAtCoords(L.latLng(
+            lastCoord.dd.y,
+            lastCoord.dd.x
+        ));
+
+    console.log(layers);
+
+    // Did we select a layer?
+    if (layers.length > 0){
+        const layer = layers[layers.length - 1];
+        const meta = layer[Symbol.for("meta")];
+        if (meta){
+            const task = meta.task;
+
+            $.ajax({
+                type: 'POST',
+                url: `/api/plugins/measure/task/${task.id}/volume`,
+                data: JSON.stringify({'area': this.props.resultFeature.toGeoJSON()}),
+                contentType: "application/json"
+            }).done(result => {
+                if (result.volume){
+                    this.setState({volume: parseFloat(result.volume)});
+                }else if (result.error){
+                    this.setState({error: result.error});
+                }else{
+                    this.setState({error: "Invalid response: " + result});
+                }
+            }).fail(error => {
+                this.setState({error});
+            });
+        }else{
+            console.warn("Cannot find [meta] symbol for layer: ", layer);
+            this.setState({volume: false});
+        }
+    }else{
+        this.setState({volume: false});
+    }
+  }
+
+  // @return the layers in the map
+    //      at a specific lat/lon
+  getLayersAtCoords(latlng){
+    const targetBounds = L.latLngBounds(latlng, latlng);
+
+    const intersects = [];
+    for (let l in this.props.map._layers){
+        const layer = this.props.map._layers[l];
+
+        if (layer.options && layer.options.bounds){
+            if (targetBounds.intersects(layer.options.bounds)){
+                intersects.push(layer);
+            }
+        }
+    }
+
+    return intersects;
+  }
+
+  render(){
+    const { volume, error } = this.state;
+
+    return (<div className="plugin-measure popup">
+        <p>Area: {this.props.model.areaDisplay}</p>
+        <p>Perimeter: {this.props.model.lengthDisplay}</p>
+        {volume === null && !error && <p>Volume: <i>computing...</i> <i className="fa fa-cog fa-spin fa-fw" /></p>}
+        {typeof volume === "number" && <p>Volume: {volume.toFixed("2")} Cubic Meters ({(volume * 35.3147).toFixed(2)} Cubic Feet)</p>}
+        {error && <p>Volume: <span className={"error theme-background-failed " + (error.length > 200 ? 'long' : '')}>{error}</span></p>}
+    </div>);
+  }
+}
\ No newline at end of file
diff --git a/plugins/measure/public/MeasurePopup.scss b/plugins/measure/public/MeasurePopup.scss
new file mode 100644
index 000000000..b8241e1b2
--- /dev/null
+++ b/plugins/measure/public/MeasurePopup.scss
@@ -0,0 +1,11 @@
+.plugin-measure.popup{
+    p{
+        margin: 0;
+    }
+
+    .error.long{
+        overflow: scroll;
+        display: block;
+        max-height: 200px;
+    }
+}
\ No newline at end of file
diff --git a/plugins/measure/public/app.jsx b/plugins/measure/public/app.jsx
new file mode 100644
index 000000000..338fdeba0
--- /dev/null
+++ b/plugins/measure/public/app.jsx
@@ -0,0 +1,41 @@
+import L from 'leaflet';
+import './app.scss';
+import 'leaflet-measure-ex/dist/leaflet-measure';
+import 'leaflet-measure-ex/dist/leaflet-measure.css';
+import MeasurePopup from './MeasurePopup';
+import ReactDOM from 'ReactDOM';
+import React from 'react';
+import $ from 'jquery';
+
+module.exports = class App{
+    constructor(map){
+        this.map = map;
+
+        L.control.measure({
+          labels:{
+            measureDistancesAndAreas: 'Measure volume, area and length',
+            areaMeasurement: 'Measurement'
+          },
+          primaryLengthUnit: 'meters',
+          secondaryLengthUnit: 'feet',
+          primaryAreaUnit: 'sqmeters',
+          secondaryAreaUnit: 'acres'
+        }).addTo(map);
+
+        map.on('measurepopupshown', ({popupContainer, model, resultFeature}) => {
+            // Only modify area popup, length popup is fine as default
+            if (model.area !== 0){
+                const $container = $("<div/>"),
+                      $popup = $(popupContainer);
+
+                $popup.children("p").empty();
+                $popup.children("h3:first-child").after($container);
+
+                ReactDOM.render(<MeasurePopup 
+                                    model={model} 
+                                    resultFeature={resultFeature} 
+                                    map={map} />, $container.get(0));
+            }
+        });
+    }
+}
\ No newline at end of file
diff --git a/plugins/measure/public/app.scss b/plugins/measure/public/app.scss
new file mode 100644
index 000000000..afb4fe8a6
--- /dev/null
+++ b/plugins/measure/public/app.scss
@@ -0,0 +1,19 @@
+.leaflet-control-measure,
+.leaflet-measure-resultpopup{
+    h3{
+        font-size: 120%;
+    } 
+}
+
+.leaflet-control-measure-interaction{
+    a{
+        width: auto !important;
+        height: auto !important;
+        line-height: auto !important;
+        display: initial !important;
+
+        &:hover{
+            background-color: inherit !important;
+        }
+    }
+}
\ No newline at end of file
diff --git a/plugins/measure/public/images/cancel.png b/plugins/measure/public/images/cancel.png
deleted file mode 100644
index a4e7c492e..000000000
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diff --git a/plugins/measure/public/images/cancel_@2X.png b/plugins/measure/public/images/cancel_@2X.png
deleted file mode 100644
index dcc72f0c1..000000000
Binary files a/plugins/measure/public/images/cancel_@2X.png and /dev/null differ
diff --git a/plugins/measure/public/images/check.png b/plugins/measure/public/images/check.png
deleted file mode 100644
index 55f274b1d..000000000
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diff --git a/plugins/measure/public/images/check_@2X.png b/plugins/measure/public/images/check_@2X.png
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diff --git a/plugins/measure/public/images/focus.png b/plugins/measure/public/images/focus.png
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diff --git a/plugins/measure/public/images/focus_@2X.png b/plugins/measure/public/images/focus_@2X.png
deleted file mode 100644
index 1eb7dd4ce..000000000
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diff --git a/plugins/measure/public/images/rulers.png b/plugins/measure/public/images/rulers.png
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index 5d6339d9d..000000000
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diff --git a/plugins/measure/public/images/rulers_@2X.png b/plugins/measure/public/images/rulers_@2X.png
deleted file mode 100644
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diff --git a/plugins/measure/public/images/start.png b/plugins/measure/public/images/start.png
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diff --git a/plugins/measure/public/images/start_@2X.png b/plugins/measure/public/images/start_@2X.png
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diff --git a/plugins/measure/public/images/trash.png b/plugins/measure/public/images/trash.png
deleted file mode 100644
index 7ff478a45..000000000
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diff --git a/plugins/measure/public/images/trash_@2X.png b/plugins/measure/public/images/trash_@2X.png
deleted file mode 100644
index fea11a8c4..000000000
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diff --git a/plugins/measure/public/leaflet-measure.css b/plugins/measure/public/leaflet-measure.css
deleted file mode 100644
index 10e16b086..000000000
--- a/plugins/measure/public/leaflet-measure.css
+++ /dev/null
@@ -1 +0,0 @@
-.leaflet-control-measure h3,.leaflet-measure-resultpopup h3{margin:0 0 12px 0;padding-bottom:10px;line-height:1em;font-weight:normal;font-size:1.1em;border-bottom:solid 1px #DDD}.leaflet-control-measure p,.leaflet-measure-resultpopup p{margin:10px 0 0;line-height:1em}.leaflet-control-measure p:first-child,.leaflet-measure-resultpopup p:first-child{margin-top:0}.leaflet-control-measure a,.leaflet-measure-resultpopup a{color:#5E66CC;text-decoration:none}.leaflet-control-measure a:hover,.leaflet-measure-resultpopup a:hover{opacity:0.5;text-decoration:none}.leaflet-control-measure .tasks,.leaflet-measure-resultpopup .tasks{margin:12px 0 0;padding:10px 0 0;border-top:solid 1px #DDD;list-style:none;list-style-image:none}.leaflet-control-measure .tasks li,.leaflet-measure-resultpopup .tasks li{display:inline;margin:0 10px 0 0}.leaflet-control-measure .tasks li:last-child,.leaflet-measure-resultpopup .tasks li:last-child{margin-right:0}.leaflet-control-measure .coorddivider,.leaflet-measure-resultpopup .coorddivider{color:#999}.leaflet-control-measure{background:#fff;border-radius:5px;box-shadow:0 1px 5px rgba(0,0,0,0.4)}.leaflet-control-measure .leaflet-control-measure-toggle,.leaflet-control-measure .leaflet-control-measure-toggle:hover{display:block;width:36px;height:36px;background-position:50% 50%;background-repeat:no-repeat;background-image:url(images/rulers.png);border-radius:5px;text-indent:100%;white-space:nowrap;overflow:hidden}.leaflet-retina .leaflet-control-measure .leaflet-control-measure-toggle,.leaflet-retina .leaflet-control-measure .leaflet-control-measure-toggle:hover{background-image:url(images/rulers_@2X.png);background-size:16px 16px}.leaflet-touch .leaflet-control-measure .leaflet-control-measure-toggle,.leaflet-touch .leaflet-control-measure .leaflet-control-measure-toggle:hover{width:44px;height:44px}.leaflet-control-measure .startprompt h3{margin-bottom:10px}.leaflet-control-measure .startprompt .tasks{margin-top:0;padding-top:0;border-top:0}.leaflet-control-measure .leaflet-control-measure-interaction{padding:10px 12px}.leaflet-control-measure .results .group{margin-top:10px;padding-top:10px;border-top:dotted 1px #eaeaea}.leaflet-control-measure .results .group:first-child{margin-top:0;padding-top:0;border-top:0}.leaflet-control-measure .results .heading{margin-right:5px;color:#999}.leaflet-control-measure a.start{padding-left:18px;background-repeat:no-repeat;background-position:0% 50%;background-image:url(images/start.png)}.leaflet-retina .leaflet-control-measure a.start{background-image:url(images/start_@2X.png);background-size:12px 12px}.leaflet-control-measure a.cancel{padding-left:18px;background-repeat:no-repeat;background-position:0% 50%;background-image:url(images/cancel.png)}.leaflet-retina .leaflet-control-measure a.cancel{background-image:url(images/cancel_@2X.png);background-size:12px 12px}.leaflet-control-measure a.finish{padding-left:18px;background-repeat:no-repeat;background-position:0% 50%;background-image:url(images/check.png)}.leaflet-retina .leaflet-control-measure a.finish{background-image:url(images/check_@2X.png);background-size:12px 12px}.leaflet-measure-resultpopup a.zoomto{padding-left:18px;background-repeat:no-repeat;background-position:0% 50%;background-image:url(images/focus.png)}.leaflet-retina .leaflet-measure-resultpopup a.zoomto{background-image:url(images/focus_@2X.png);background-size:12px 12px}.leaflet-measure-resultpopup a.deletemarkup{padding-left:18px;background-repeat:no-repeat;background-position:0% 50%;background-image:url(images/trash.png)}.leaflet-retina .leaflet-measure-resultpopup a.deletemarkup{background-image:url(images/trash_@2X.png);background-size:11px 12px}
diff --git a/plugins/measure/public/leaflet-measure.min.js b/plugins/measure/public/leaflet-measure.min.js
deleted file mode 100644
index 1dfe9e231..000000000
--- a/plugins/measure/public/leaflet-measure.min.js
+++ /dev/null
@@ -1,4 +0,0 @@
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b=a[0],c=a[1],d=a[2],f=e(a)[0],g=1/255*Math.min(b,Math.min(c,d)),d=1-1/255*Math.max(b,Math.max(c,d));return[f,100*g,100*d]}function i(a){var b,c,d,e,f=a[0]/255,g=a[1]/255,h=a[2]/255;return e=Math.min(1-f,1-g,1-h),b=(1-f-e)/(1-e)||0,c=(1-g-e)/(1-e)||0,d=(1-h-e)/(1-e)||0,[100*b,100*c,100*d,100*e]}function j(a){return Z[JSON.stringify(a)]}function k(a){var b=a[0]/255,c=a[1]/255,d=a[2]/255;b=b>.04045?Math.pow((b+.055)/1.055,2.4):b/12.92,c=c>.04045?Math.pow((c+.055)/1.055,2.4):c/12.92,d=d>.04045?Math.pow((d+.055)/1.055,2.4):d/12.92;var e=.4124*b+.3576*c+.1805*d,f=.2126*b+.7152*c+.0722*d,g=.0193*b+.1192*c+.9505*d;return[100*e,100*f,100*g]}function l(a){var b,c,d,e=k(a),f=e[0],g=e[1],h=e[2];return f/=95.047,g/=100,h/=108.883,f=f>.008856?Math.pow(f,1/3):7.787*f+16/116,g=g>.008856?Math.pow(g,1/3):7.787*g+16/116,h=h>.008856?Math.pow(h,1/3):7.787*h+16/116,b=116*g-16,c=500*(f-g),d=200*(g-h),[b,c,d]}function m(a){return M(l(a))}function n(a){var 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this.setSpace("hsl",arguments)},hsv:function(a){return this.setSpace("hsv",arguments)},hwb:function(a){return this.setSpace("hwb",arguments)},cmyk:function(a){return this.setSpace("cmyk",arguments)},rgbArray:function(){return this.values.rgb},hslArray:function(){return this.values.hsl},hsvArray:function(){return this.values.hsv},hwbArray:function(){return 1!==this.values.alpha?this.values.hwb.concat([this.values.alpha]):this.values.hwb},cmykArray:function(){return this.values.cmyk},rgbaArray:function(){var a=this.values.rgb;return a.concat([this.values.alpha])},hslaArray:function(){var a=this.values.hsl;return a.concat([this.values.alpha])},alpha:function(a){return void 0===a?this.values.alpha:(this.setValues("alpha",a),this)},red:function(a){return this.setChannel("rgb",0,a)},green:function(a){return this.setChannel("rgb",1,a)},blue:function(a){return this.setChannel("rgb",2,a)},hue:function(a){return this.setChannel("hsl",0,a)},saturation:function(a){return 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"}},{}],26:[function(a,b,c){b.exports={measure:"测量",measureDistancesAndAreas:"同时测量距离和面积",createNewMeasurement:"开始一次新的测量",startCreating:"点击地图加点以开始创建测量",finishMeasurement:"完成测量",lastPoint:"最后点的坐标",area:"面积",perimeter:"周长",pointLocation:"点的坐标",areaMeasurement:"面积测量",linearMeasurement:"距离测量",pathDistance:"路径长度",centerOnArea:"该面积居中",centerOnLine:"该线段居中",centerOnLocation:"该位置居中",cancel:"取消",delete:"删除",acres:"公亩",feet:"英尺",kilometers:"公里",hectares:"公顷",meters:"米",miles:"英里",sqfeet:"平方英尺",sqmeters:"平方米",sqmiles:"平方英里",decPoint:".",thousandsSep:","}},{}],27:[function(a,b,c){b.exports={measure:"Mål",measureDistancesAndAreas:"Mål afstande og arealer",createNewMeasurement:"Lav en ny måling",startCreating:"Begynd målingen ved at tilføje punkter på kortet",finishMeasurement:"Afslut måling",lastPoint:"Sidste punkt",area:"Areal",perimeter:"Omkreds",pointLocation:"Punkt",areaMeasurement:"Areal",linearMeasurement:"Linje",pathDistance:"Sti afstand",centerOnArea:"Centrér dette område",centerOnLine:"Centrér denne linje",centerOnLocation:"Centrér dette punkt",cancel:"Annuller",delete:"Slet",acres:"acre",feet:"fod",kilometers:"km",hectares:"ha",meters:"m",miles:"mil",sqfeet:"kvadratfod",sqmeters:"m²",sqmiles:"kvadratmil",decPoint:",",thousandsSep:"."}},{}],28:[function(a,b,c){b.exports={measure:"Messung",measureDistancesAndAreas:"Messung von Abständen und Flächen",createNewMeasurement:"Eine neue Messung durchführen",startCreating:"Führen Sie die Messung durch, indem Sie der Karte Punkte hinzufügen.",finishMeasurement:"Messung beenden",lastPoint:"Letzter Punkt",area:"Fläche",perimeter:"Rand",pointLocation:"Lage des Punkts",areaMeasurement:"Gemessene Fläche",linearMeasurement:"Gemessener Abstand",pathDistance:"Abstand entlang des Pfads",centerOnArea:"Auf diese Fläche zentrieren",centerOnLine:"Auf diesen Linienzug zentrieren",centerOnLocation:"Auf diesen Ort zentrieren",cancel:"Abbrechen",delete:"Löschen",acres:"Morgen",feet:"Fuß",kilometers:"Kilometer",hectares:"Hektar",meters:"Meter",miles:"Meilen",sqfeet:"Quadratfuß",sqmeters:"Quadratmeter",sqmiles:"Quadratmeilen",decPoint:",",thousandsSep:"."}},{}],29:[function(a,b,c){b.exports={measure:"Messung",measureDistancesAndAreas:"Abstände und Flächen messen",createNewMeasurement:"Eine neue Messung durchführen",startCreating:"Messen sie, indem Sie der Karte Punkte hinzufügen",finishMeasurement:"Messung beenden",lastPoint:"Letzter Punkt",area:"Fläche",perimeter:"Umfang",pointLocation:"Lage des Punkts",areaMeasurement:"Fläche",linearMeasurement:"Abstand",pathDistance:"Umfang",centerOnArea:"Auf diese Fläche zentrieren",centerOnLine:"Auf diese Linie zentrieren",centerOnLocation:"Auf diesen Ort zentrieren",cancel:"Abbrechen",delete:"Löschen",acres:"Morgen",feet:"Fuß",kilometers:"Kilometer",hectares:"Hektar",meters:"Meter",miles:"Meilen",sqfeet:"Quadratfuß",sqmeters:"Quadratmeter",sqmiles:"Quadratmeilen",decPoint:".",thousandsSep:"'"}},{}],30:[function(a,b,c){b.exports={measure:"Measure",measureDistancesAndAreas:"Measure distances and areas",createNewMeasurement:"Create a new measurement",startCreating:"Start creating a measurement by adding points to the map",finishMeasurement:"Finish measurement",lastPoint:"Last point",area:"Area",perimeter:"Perimeter",pointLocation:"Point location",areaMeasurement:"Area measurement",linearMeasurement:"Linear measurement",pathDistance:"Path distance",centerOnArea:"Center on this area",centerOnLine:"Center on this line",centerOnLocation:"Center on this location",cancel:"Cancel",delete:"Delete",acres:"Acres",feet:"Feet",kilometers:"Kilometers",hectares:"Hectares",meters:"Meters",miles:"Miles",sqfeet:"Sq Feet",sqmeters:"Sq Meters",sqmiles:"Sq Miles",decPoint:".",thousandsSep:","}},{}],31:[function(a,b,c){b.exports={measure:"Measure",measureDistancesAndAreas:"Measure distances and areas",createNewMeasurement:"Create a new measurement",startCreating:"Start creating a measurement by adding points to the map",finishMeasurement:"Finish measurement",lastPoint:"Last point",area:"Area",perimeter:"Perimeter",pointLocation:"Point location",areaMeasurement:"Area measurement",linearMeasurement:"Linear measurement",pathDistance:"Path distance",centerOnArea:"Centre on this area",centerOnLine:"Centre on this line",centerOnLocation:"Centre on this location",cancel:"Cancel",delete:"Delete",acres:"Acres",feet:"Feet",kilometers:"Kilometres",hectares:"Hectares",meters:"Meters",miles:"Miles",sqfeet:"Sq Feet",sqmeters:"Sq Meters",sqmiles:"Sq Miles",decPoint:".",thousandsSep:","}},{}],32:[function(a,b,c){b.exports={measure:"Medición",measureDistancesAndAreas:"Mida distancias y áreas",createNewMeasurement:"Crear nueva medición",startCreating:"Empiece a crear la medición añadiendo puntos al mapa",finishMeasurement:"Terminar medición",lastPoint:"Último punto",area:"Área",perimeter:"Perímetro",pointLocation:"Localización del punto",areaMeasurement:"Medición de área",linearMeasurement:"Medición linear",pathDistance:"Distancia de ruta",centerOnArea:"Centrar en este área",centerOnLine:"Centrar en esta línea",centerOnLocation:"Centrar en esta localización",cancel:"Cancelar",delete:"Eliminar",acres:"Acres",feet:"Pies",kilometers:"Kilómetros",hectares:"Hectáreas",meters:"Metros",miles:"Millas",sqfeet:"Pies cuadrados",sqmeters:"Metros cuadrados",sqmiles:"Millas cuadradas",decPoint:".",thousandsSep:" "}},{}],33:[function(a,b,c){b.exports={measure:"اندازه گیری",measureDistancesAndAreas:"اندازه گیری فاصله و مساحت",createNewMeasurement:"ثبت اندازه گیری جدید",startCreating:"برای ثبت اندازه گیری جدید نقاطی را به نقشه اضافه کنید.",finishMeasurement:"پایان اندازه گیری",lastPoint:"آخرین نقطه",area:"مساحت",perimeter:"محیط",pointLocation:"مکان نقطه",areaMeasurement:"اندازه گیری مساحت",linearMeasurement:"اندازه گیری خطی",pathDistance:"فاصله مسیر",centerOnArea:"مرکز این سطح",centerOnLine:"مرکز این خط",centerOnLocation:"مرکز این مکان",cancel:"لغو",delete:"حذف",acres:"ایکر",feet:"پا",kilometers:"کیلومتر",hectares:"هکتار",meters:"متر",miles:"مایل",sqfeet:"پا مربع",sqmeters:"متر مربع",sqmiles:"مایل مربع",decPoint:"/",thousandsSep:","}},{}],34:[function(a,b,c){b.exports={measure:"Sukat",measureDistancesAndAreas:"Kalkulahin ang tamang distansya at sukat",createNewMeasurement:"Lumikha ng isang bagong pagsukat",startCreating:"Simulan ang paglikha ng isang pagsukat sa pamamagitan ng pagdaragdag ng mga puntos sa mapa",finishMeasurement:"Tapusin ang pagsukat",lastPoint:"Huling punto sa mapa",area:"Sukat",perimeter:"Palibot",pointLocation:"Lokasyon ng punto",areaMeasurement:"Kabuuang sukat",linearMeasurement:"Pagsukat ng guhit",pathDistance:"Distansya ng daanan",centerOnArea:"I-sentro sa lugar na ito",centerOnLine:"I-sentro sa linya na ito",centerOnLocation:"I-sentro sa lokasyong ito",cancel:"Kanselahin",delete:"Tanggalin",acres:"Acres",feet:"Talampakan",kilometers:"Kilometro",hectares:"Hektarya",meters:"Metro",miles:"Milya",sqfeet:"Talampakang Kwadrado",sqmeters:"Metro Kwadrado",sqmiles:"Milya Kwadrado",decPoint:".",thousandsSep:","}},{}],35:[function(a,b,c){b.exports={measure:"Mesure",measureDistancesAndAreas:"Mesurer les distances et superficies",createNewMeasurement:"Créer une nouvelle mesure",startCreating:"Débuter la création d'une nouvelle mesure en ajoutant des points sur la carte",finishMeasurement:"Finir la mesure",lastPoint:"Dernier point",area:"Superficie",perimeter:"Périmètre",pointLocation:"Placement du point",areaMeasurement:"Mesure de superficie",linearMeasurement:"Mesure linéaire",pathDistance:"Distance du chemin",centerOnArea:"Centrer sur cette zone",centerOnLine:"Centrer sur cette ligne",centerOnLocation:"Centrer à cet endroit",cancel:"Annuler",delete:"Supprimer",acres:"Acres",feet:"Pieds",kilometers:"Kilomètres",hectares:"Hectares",meters:"Mètres",miles:"Miles",sqfeet:"Pieds carrés",sqmeters:"Mètres carrés",sqmiles:"Miles carrés",decPoint:",",thousandsSep:" "}},{}],36:[function(a,b,c){b.exports={measure:"Misura",measureDistancesAndAreas:"Misura distanze e aree",createNewMeasurement:"Crea una nuova misurazione",startCreating:"Comincia a creare una misurazione aggiungendo punti alla mappa",finishMeasurement:"Misurazione conclusa",lastPoint:"Ultimo punto",area:"Area",perimeter:"Perimetro",pointLocation:"Posizione punto",areaMeasurement:"Misura area",linearMeasurement:"Misura lineare",pathDistance:"Distanza percorso",centerOnArea:"Centra su questa area",centerOnLine:"Centra su questa linea",centerOnLocation:"Centra su questa posizione",cancel:"Annulla",delete:"Cancella",acres:"Acri",feet:"Piedi",kilometers:"Chilometri",hectares:"Ettari",meters:"Metri",miles:"Miglia",sqfeet:"Piedi quadri",sqmeters:"Metri quadri",sqmiles:"Miglia quadre",decPoint:".",thousandsSep:","}},{}],37:[function(a,b,c){b.exports={measure:"Meet",measureDistancesAndAreas:"Meet afstanden en oppervlakten",createNewMeasurement:"Maak een nieuwe meting",startCreating:"Begin een meting door punten toe te voegen aan de kaart",finishMeasurement:"Beëindig meting",lastPoint:"Laatste punt",area:"Oppervlakte",perimeter:"Omtrek",pointLocation:"Locatie punt",areaMeasurement:"Oppervlakte meting",linearMeasurement:"Gemeten afstand",pathDistance:"Afstand over de lijn",centerOnArea:"Centreer op dit gebied",centerOnLine:"Centreer op deze lijn",centerOnLocation:"Centreer op deze locatie",cancel:"Annuleer",delete:"Wis",acres:"are",feet:"Voet",kilometers:"km",hectares:"ha",meters:"m",miles:"Mijl",sqfeet:"Vierkante Feet",sqmeters:"m2",sqmiles:"Vierkante Mijl",decPoint:",",thousandsSep:"."}},{}],38:[function(a,b,c){b.exports={measure:"Pomiar",measureDistancesAndAreas:"Pomiar odległości i powierzchni",createNewMeasurement:"Utwórz nowy pomiar",startCreating:"Rozpocznij tworzenie nowego pomiaru poprzez dodanie punktów na mapie",finishMeasurement:"Zakończ pomiar",lastPoint:"Ostatni punkt",area:"Powierzchnia",perimeter:"Obwód",pointLocation:"Punkt lokalizacji",areaMeasurement:"Pomiar powierzchni",linearMeasurement:"Pomiar liniowy",pathDistance:"Długość ścieżki",centerOnArea:"Środek tego obszaru",centerOnLine:"Środek tej linii",centerOnLocation:"Środek w tej lokalizacji",cancel:"Anuluj",delete:"Skasuj",acres:"akrów",feet:"stóp",kilometers:"kilometrów",hectares:"hektarów",meters:"metrów",miles:"mil",sqfeet:"stóp kwadratowych",sqmeters:"metrów kwadratowych",sqmiles:"mil kwadratowych",decPoint:",",thousandsSep:"."}},{}],39:[function(a,b,c){b.exports={measure:"Medidas",measureDistancesAndAreas:"Mede distâncias e áreas",createNewMeasurement:"Criar nova medida",startCreating:"Comece criando uma medida, adicionando pontos no mapa",finishMeasurement:"Finalizar medida",lastPoint:"Último ponto",area:"Área",perimeter:"Perímetro",pointLocation:"Localização do ponto",areaMeasurement:"Medida de área",linearMeasurement:"Medida linear",pathDistance:"Distância",centerOnArea:"Centralizar nesta área",centerOnLine:"Centralizar nesta linha",centerOnLocation:"Centralizar nesta localização",cancel:"Cancelar",delete:"Excluir",acres:"Acres",feet:"Pés",kilometers:"Quilômetros",hectares:"Hectares",meters:"Metros",miles:"Milhas",sqfeet:"Pés²",sqmeters:"Metros²",sqmiles:"Milhas²",decPoint:",",thousandsSep:"."}},{}],40:[function(a,b,c){b.exports={measure:"Medições",measureDistancesAndAreas:"Medir distâncias e áreas",createNewMeasurement:"Criar uma nova medição",startCreating:"Adicione pontos no mapa, para criar uma nova medição",finishMeasurement:"Finalizar medição",lastPoint:"Último ponto",area:"Área",perimeter:"Perímetro",pointLocation:"Localização do ponto",areaMeasurement:"Medição da área",linearMeasurement:"Medição linear",pathDistance:"Distância",centerOnArea:"Centrar nesta área",centerOnLine:"Centrar nesta linha",centerOnLocation:"Centrar nesta localização",cancel:"Cancelar",delete:"Eliminar",acres:"Acres",feet:"Pés",kilometers:"Kilômetros",hectares:"Hectares",meters:"Metros",miles:"Milhas",sqfeet:"Pés²",sqmeters:"Metros²",sqmiles:"Milhas²",decPoint:",",thousandsSep:"."}},{}],41:[function(a,b,c){b.exports={measure:"Измерение",measureDistancesAndAreas:"Измерение расстояний и площади",createNewMeasurement:"Создать новое измерение",startCreating:"Для начала измерения добавьте точку на карту",finishMeasurement:"Закончить измерение",lastPoint:"Последняя точка",area:"Область",perimeter:"Периметр",pointLocation:"Местоположение точки",areaMeasurement:"Измерение области",linearMeasurement:"Линейное измерение",pathDistance:"Расстояние",centerOnArea:"Сфокусироваться на данной области",centerOnLine:"Сфокусироваться на данной линии",centerOnLocation:"Сфокусироваться на данной местности",cancel:"Отменить",delete:"Удалить",acres:"акры",feet:"фут",kilometers:"км",hectares:"га",meters:"м",miles:"миль",sqfeet:"футов²",sqmeters:"м²",sqmiles:"миль²",decPoint:".",thousandsSep:","}},{}],42:[function(a,b,c){b.exports={measure:"Mäta",measureDistancesAndAreas:"Mäta avstånd och yta",createNewMeasurement:"Skapa ny mätning",startCreating:"Börja mätning genom att lägga till punkter på kartan",finishMeasurement:"Avsluta mätning",lastPoint:"Sista punkt",area:"Yta",perimeter:"Omkrets",pointLocation:"Punktens Läge",areaMeasurement:"Arealmätning",linearMeasurement:"Längdmätning",pathDistance:"Total linjelängd",centerOnArea:"Centrera på detta område",centerOnLine:"Centrera på denna linje",centerOnLocation:"Centrera på denna punkt",cancel:"Avbryt",delete:"Radera",acres:"Tunnland",feet:"Fot",kilometers:"Kilometer",hectares:"Hektar",meters:"Meter",miles:"Miles",sqfeet:"Kvadratfot",sqmeters:"Kvadratmeter",sqmiles:"Kvadratmiles",decPoint:",",thousandsSep:" "}},{}],43:[function(a,b,c){b.exports={measure:"Hesapla",measureDistancesAndAreas:"Uzaklık ve alan hesapla",createNewMeasurement:"Yeni hesaplama",startCreating:"Yeni nokta ekleyerek hesaplamaya başla",finishMeasurement:"Hesaplamayı bitir",lastPoint:"Son nokta",area:"Alan",perimeter:"Çevre uzunluğu",pointLocation:"Nokta yeri",areaMeasurement:"Alan hesaplaması",linearMeasurement:"Doğrusal hesaplama",pathDistance:"Yol uzunluğu",centerOnArea:"Bu alana odaklan",centerOnLine:"Bu doğtuya odaklan",centerOnLocation:"Bu yere odaklan",cancel:"Çıkış",delete:"Sil",acres:"Dönüm",feet:"Feet",kilometers:"Kilometre",hectares:"Hektar",meters:"Metre",miles:"Mil",sqfeet:"Feet kare",sqmeters:"Metre kare",sqmiles:"Mil kare",decPoint:".",thousandsSep:","}},{}],44:[function(a,b,c){(function(b){var c=a("underscore"),d="undefined"!=typeof window?window.L:"undefined"!=typeof b?b.L:null,e=a("humanize"),f=a("./units"),g=a("./calc"),h=a("./dom"),i=h.$,j=a("./mapsymbology"),k=c.template('<a class="<%= 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model.lastCoord.dms.y %> <span class="coorddivider">/</span> <%= model.lastCoord.dms.x %></p>\n<p><%= humanize.numberFormat(model.lastCoord.dd.y, 6) %> <span class="coorddivider">/</span> <%= humanize.numberFormat(model.lastCoord.dd.x, 6) %></p>\n</div>\n<% if (model.pointCount > 1) { %>\n<div class="group">\n<p><span class="heading"><%= i18n.__(\'pathDistance\') %></span> <%= model.lengthDisplay %></p>\n</div>\n<% } %>\n<% if (model.pointCount > 2) { %>\n<div class="group">\n<p><span class="heading"><%= i18n.__(\'area\') %></span> <%= model.areaDisplay %></p>\n</div>\n<% } %>'),m=c.template('<h3><%= i18n.__(\'pointLocation\') %></h3>\n<p><%= model.lastCoord.dms.y %> <span class="coorddivider">/</span> <%= model.lastCoord.dms.x %></p>\n<p><%= humanize.numberFormat(model.lastCoord.dd.y, 6) %> <span class="coorddivider">/</span> <%= humanize.numberFormat(model.lastCoord.dd.x, 6) %></p>\n<ul class="tasks">\n  <li><a href="#" class="js-zoomto zoomto"><%= i18n.__(\'centerOnLocation\') %></a></li>\n  <li><a href="#" class="js-deletemarkup deletemarkup"><%= i18n.__(\'delete\') %></a></li>\n</ul>'),n=c.template('<h3><%= i18n.__(\'linearMeasurement\') %></h3>\n<p><%= model.lengthDisplay %></p>\n<ul class="tasks">\n  <li><a href="#" class="js-zoomto zoomto"><%= i18n.__(\'centerOnLine\') %></a></li>\n  <li><a href="#" class="js-deletemarkup deletemarkup"><%= i18n.__(\'delete\') %></a></li>\n</ul>'),o=c.template('<h3><%= i18n.__(\'areaMeasurement\') %></h3>\n<p><%= model.areaDisplay %></p>\n<p><%= model.lengthDisplay %> <%= i18n.__(\'perimeter\') %></p>\n<ul class="tasks">\n  <li><a href="#" class="js-zoomto zoomto"><%= i18n.__(\'centerOnArea\') %></a></li>\n  <li><a href="#" class="js-deletemarkup deletemarkup"><%= i18n.__(\'delete\') %></a></li>\n</ul>'),p=new(a("i18n-2"))({devMode:!1,locales:{ca:a("./i18n/ca"),cn:a("./i18n/cn"),da:a("./i18n/da"),de:a("./i18n/de"),de_CH:a("./i18n/de_CH"),en:a("./i18n/en"),en_UK:a("./i18n/en_UK"),es:a("./i18n/es"),fa:a("./i18n/fa"),fil_PH:a("./i18n/fil_PH"),fr:a("./i18n/fr"),it:a("./i18n/it"),nl:a("./i18n/nl"),pl:a("./i18n/pl"),pt_BR:a("./i18n/pt_BR"),pt_PT:a("./i18n/pt_PT"),ru:a("./i18n/ru"),sv:a("./i18n/sv"),tr:a("./i18n/tr")}});d.Control.Measure=d.Control.extend({_className:"leaflet-control-measure",options:{units:{},position:"topright",primaryLengthUnit:"feet",secondaryLengthUnit:"miles",primaryAreaUnit:"acres",activeColor:"#ABE67E",completedColor:"#C8F2BE",captureZIndex:1e4,popupOptions:{className:"leaflet-measure-resultpopup",autoPanPadding:[10,10]}},initialize:function(a){d.setOptions(this,a),this.options.units=d.extend({},f,this.options.units),this._symbols=new j(c.pick(this.options,"activeColor","completedColor")),p.setLocale(this.options.localization)},onAdd:function(a){return this._map=a,this._latlngs=[],this._initLayout(),a.on("click",this._collapse,this),this._layer=d.layerGroup().addTo(a),this._container},onRemove:function(a){a.off("click",this._collapse,this),a.removeLayer(this._layer)},_initLayout:function(){var a,b,c,e,f=this._className,g=this._container=d.DomUtil.create("div",f);g.innerHTML=k({model:{className:f},i18n:p}),g.setAttribute("aria-haspopup",!0),d.Browser.touch?d.DomEvent.on(g,"click",d.DomEvent.stopPropagation):(d.DomEvent.disableClickPropagation(g),d.DomEvent.disableScrollPropagation(g)),a=this.$toggle=i(".js-toggle",g),this.$interaction=i(".js-interaction",g),b=i(".js-start",g),c=i(".js-cancel",g),e=i(".js-finish",g),this.$startPrompt=i(".js-startprompt",g),this.$measuringPrompt=i(".js-measuringprompt",g),this.$startHelp=i(".js-starthelp",g),this.$results=i(".js-results",g),this.$measureTasks=i(".js-measuretasks",g),this._collapse(),this._updateMeasureNotStarted(),d.Browser.android||(d.DomEvent.on(g,"mouseenter",this._expand,this),d.DomEvent.on(g,"mouseleave",this._collapse,this)),d.DomEvent.on(a,"click",d.DomEvent.stop),d.Browser.touch?d.DomEvent.on(a,"click",this._expand,this):d.DomEvent.on(a,"focus",this._expand,this),d.DomEvent.on(b,"click",d.DomEvent.stop),d.DomEvent.on(b,"click",this._startMeasure,this),d.DomEvent.on(c,"click",d.DomEvent.stop),d.DomEvent.on(c,"click",this._finishMeasure,this),d.DomEvent.on(e,"click",d.DomEvent.stop),d.DomEvent.on(e,"click",this._handleMeasureDoubleClick,this);
-},_expand:function(){h.hide(this.$toggle),h.show(this.$interaction)},_collapse:function(){this._locked||(h.hide(this.$interaction),h.show(this.$toggle))},_updateMeasureNotStarted:function(){h.hide(this.$startHelp),h.hide(this.$results),h.hide(this.$measureTasks),h.hide(this.$measuringPrompt),h.show(this.$startPrompt)},_updateMeasureStartedNoPoints:function(){h.hide(this.$results),h.show(this.$startHelp),h.show(this.$measureTasks),h.hide(this.$startPrompt),h.show(this.$measuringPrompt)},_updateMeasureStartedWithPoints:function(){h.hide(this.$startHelp),h.show(this.$results),h.show(this.$measureTasks),h.hide(this.$startPrompt),h.show(this.$measuringPrompt)},_startMeasure:function(){this._locked=!0,this._measureVertexes=d.featureGroup().addTo(this._layer),this._captureMarker=d.marker(this._map.getCenter(),{clickable:!0,zIndexOffset:this.options.captureZIndex,opacity:0}).addTo(this._layer),this._setCaptureMarkerIcon(),this._captureMarker.on("mouseout",this._handleMapMouseOut,this).on("dblclick",this._handleMeasureDoubleClick,this).on("click",this._handleMeasureClick,this),this._map.on("mousemove",this._handleMeasureMove,this).on("mouseout",this._handleMapMouseOut,this).on("move",this._centerCaptureMarker,this).on("resize",this._setCaptureMarkerIcon,this),d.DomEvent.on(this._container,"mouseenter",this._handleMapMouseOut,this),this._updateMeasureStartedNoPoints(),this._map.fire("measurestart",null,!1)},_finishMeasure:function(){var a=c.extend({},this._resultsModel,{points:this._latlngs});this._locked=!1,d.DomEvent.off(this._container,"mouseover",this._handleMapMouseOut,this),this._clearMeasure(),this._captureMarker.off("mouseout",this._handleMapMouseOut,this).off("dblclick",this._handleMeasureDoubleClick,this).off("click",this._handleMeasureClick,this),this._map.off("mousemove",this._handleMeasureMove,this).off("mouseout",this._handleMapMouseOut,this).off("move",this._centerCaptureMarker,this).off("resize",this._setCaptureMarkerIcon,this),this._layer.removeLayer(this._measureVertexes).removeLayer(this._captureMarker),this._measureVertexes=null,this._updateMeasureNotStarted(),this._collapse(),this._map.fire("measurefinish",a,!1)},_clearMeasure:function(){this._latlngs=[],this._resultsModel=null,this._measureVertexes.clearLayers(),this._measureDrag&&this._layer.removeLayer(this._measureDrag),this._measureArea&&this._layer.removeLayer(this._measureArea),this._measureBoundary&&this._layer.removeLayer(this._measureBoundary),this._measureDrag=null,this._measureArea=null,this._measureBoundary=null},_centerCaptureMarker:function(){this._captureMarker.setLatLng(this._map.getCenter())},_setCaptureMarkerIcon:function(){this._captureMarker.setIcon(d.divIcon({iconSize:this._map.getSize().multiplyBy(2)}))},_getMeasurementDisplayStrings:function(a){function b(a,b,e,f,g){var h;return b&&d[b]?(h=c(a,d[b],f,g),e&&d[e]&&(h=h+" ("+c(a,d[e],f,g)+")")):h=c(a,null,f,g),h}function c(a,b,c,d){return b&&b.factor&&b.display?e.numberFormat(a*b.factor,b.decimals||0,c||p.__("decPoint"),d||p.__("thousandsSep"))+" "+p.__([b.display])||b.display:e.numberFormat(a,0,c||p.__("decPoint"),d||p.__("thousandsSep"))}var d=this.options.units;return{lengthDisplay:b(a.length,this.options.primaryLengthUnit,this.options.secondaryLengthUnit,this.options.decPoint,this.options.thousandsSep),areaDisplay:b(a.area,this.options.primaryAreaUnit,this.options.secondaryAreaUnit,this.options.decPoint,this.options.thousandsSep)}},_updateResults:function(){var a=g.measure(this._latlngs),b=this._resultsModel=c.extend({},a,this._getMeasurementDisplayStrings(a),{pointCount:this._latlngs.length});this.$results.innerHTML=l({model:b,humanize:e,i18n:p})},_handleMeasureMove:function(a){this._measureDrag?this._measureDrag.setLatLng(a.latlng):this._measureDrag=d.circleMarker(a.latlng,this._symbols.getSymbol("measureDrag")).addTo(this._layer),this._measureDrag.bringToFront()},_handleMeasureDoubleClick:function(){var a,b,f,h,j,k,l=this._latlngs;this._finishMeasure(),l.length&&(l.length>2&&l.push(c.first(l)),a=g.measure(l),1===l.length?(b=d.circleMarker(l[0],this._symbols.getSymbol("resultPoint")),h=m({model:a,humanize:e,i18n:p})):2===l.length?(b=d.polyline(l,this._symbols.getSymbol("resultLine")),h=n({model:c.extend({},a,this._getMeasurementDisplayStrings(a)),humanize:e,i18n:p})):(b=d.polygon(l,this._symbols.getSymbol("resultArea")),h=o({model:c.extend({},a,this._getMeasurementDisplayStrings(a)),humanize:e,i18n:p})),f=d.DomUtil.create("div",""),f.innerHTML=h,j=i(".js-zoomto",f),j&&(d.DomEvent.on(j,"click",d.DomEvent.stop),d.DomEvent.on(j,"click",function(){b.getBounds?this._map.fitBounds(b.getBounds(),{padding:[20,20],maxZoom:17}):b.getLatLng&&this._map.panTo(b.getLatLng())},this)),k=i(".js-deletemarkup",f),k&&(d.DomEvent.on(k,"click",d.DomEvent.stop),d.DomEvent.on(k,"click",function(){this._layer.removeLayer(b)},this)),b.addTo(this._layer),b.bindPopup(f,this.options.popupOptions),b.getBounds?b.openPopup(b.getBounds().getCenter()):b.getLatLng&&b.openPopup(b.getLatLng()))},_handleMeasureClick:function(a){var b=this._map.mouseEventToLatLng(a.originalEvent),d=c.last(this._latlngs),e=this._symbols.getSymbol("measureVertex");d&&b.equals(d)||(this._latlngs.push(b),this._addMeasureArea(this._latlngs),this._addMeasureBoundary(this._latlngs),this._measureVertexes.eachLayer(function(a){a.setStyle(e),a._path.setAttribute("class",e.className)}),this._addNewVertex(b),this._measureBoundary&&this._measureBoundary.bringToFront(),this._measureVertexes.bringToFront()),this._updateResults(),this._updateMeasureStartedWithPoints()},_handleMapMouseOut:function(){this._measureDrag&&(this._layer.removeLayer(this._measureDrag),this._measureDrag=null)},_addNewVertex:function(a){d.circleMarker(a,this._symbols.getSymbol("measureVertexActive")).addTo(this._measureVertexes)},_addMeasureArea:function(a){return a.length<3?void(this._measureArea&&(this._layer.removeLayer(this._measureArea),this._measureArea=null)):void(this._measureArea?this._measureArea.setLatLngs(a):this._measureArea=d.polygon(a,this._symbols.getSymbol("measureArea")).addTo(this._layer))},_addMeasureBoundary:function(a){return a.length<2?void(this._measureBoundary&&(this._layer.removeLayer(this._measureBoundary),this._measureBoundary=null)):void(this._measureBoundary?this._measureBoundary.setLatLngs(a):this._measureBoundary=d.polyline(a,this._symbols.getSymbol("measureBoundary")).addTo(this._layer))}}),d.Map.mergeOptions({measureControl:!1}),d.Map.addInitHook(function(){this.options.measureControl&&(this.measureControl=(new d.Control.Measure).addTo(this))}),d.control.measure=function(a){return new d.Control.Measure(a)}}).call(this,"undefined"!=typeof global?global:"undefined"!=typeof self?self:"undefined"!=typeof window?window:{})},{"./calc":23,"./dom":24,"./i18n/ca":25,"./i18n/cn":26,"./i18n/da":27,"./i18n/de":28,"./i18n/de_CH":29,"./i18n/en":30,"./i18n/en_UK":31,"./i18n/es":32,"./i18n/fa":33,"./i18n/fil_PH":34,"./i18n/fr":35,"./i18n/it":36,"./i18n/nl":37,"./i18n/pl":38,"./i18n/pt_BR":39,"./i18n/pt_PT":40,"./i18n/ru":41,"./i18n/sv":42,"./i18n/tr":43,"./mapsymbology":45,"./units":46,humanize:16,"i18n-2":18,underscore:22}],45:[function(a,b,c){var d=a("underscore"),e=a("color"),f=function(a){this.setOptions(a)};f.DEFAULTS={activeColor:"#ABE67E",completedColor:"#C8F2BE"},d.extend(f.prototype,{setOptions:function(a){return this._options=d.extend({},f.DEFAULTS,this._options,a),this},getSymbol:function(a){var b={measureDrag:{clickable:!1,radius:4,color:this._options.activeColor,weight:2,opacity:.7,fillColor:this._options.activeColor,fillOpacity:.5,className:"layer-measuredrag"},measureArea:{clickable:!1,stroke:!1,fillColor:this._options.activeColor,fillOpacity:.2,className:"layer-measurearea"},measureBoundary:{clickable:!1,color:this._options.activeColor,weight:2,opacity:.9,fill:!1,className:"layer-measureboundary"},measureVertex:{clickable:!1,radius:4,color:this._options.activeColor,weight:2,opacity:1,fillColor:this._options.activeColor,fillOpacity:.7,className:"layer-measurevertex"},measureVertexActive:{clickable:!1,radius:4,color:this._options.activeColor,weight:2,opacity:1,fillColor:e(this._options.activeColor).darken(.15),fillOpacity:.7,className:"layer-measurevertex active"},resultArea:{clickable:!0,color:this._options.completedColor,weight:2,opacity:.9,fillColor:this._options.completedColor,fillOpacity:.2,className:"layer-measure-resultarea"},resultLine:{clickable:!0,color:this._options.completedColor,weight:3,opacity:.9,fill:!1,className:"layer-measure-resultline"},resultPoint:{clickable:!0,radius:4,color:this._options.completedColor,weight:2,opacity:1,fillColor:this._options.completedColor,fillOpacity:.7,className:"layer-measure-resultpoint"}};return b[a]}}),b.exports=f},{color:6,underscore:22}],46:[function(a,b,c){b.exports={acres:{factor:24711e-8,display:"acres",decimals:2},feet:{factor:3.2808,display:"feet",decimals:0},kilometers:{factor:.001,display:"kilometers",decimals:2},hectares:{factor:1e-4,display:"hectares",decimals:2},meters:{factor:1,display:"meters",decimals:0},miles:{factor:3.2808/5280,display:"miles",decimals:2},sqfeet:{factor:10.7639,display:"sqfeet",decimals:0},sqmeters:{factor:1,display:"sqmeters",decimals:0},sqmiles:{factor:3.86102e-7,display:"sqmiles",decimals:2}}},{}]},{},[44]);
\ No newline at end of file
diff --git a/plugins/measure/public/main.js b/plugins/measure/public/main.js
index 5fbc55a58..d89eb536d 100644
--- a/plugins/measure/public/main.js
+++ b/plugins/measure/public/main.js
@@ -1,11 +1,6 @@
 PluginsAPI.Map.willAddControls([
-		'measure/leaflet-measure.css',
-		'measure/leaflet-measure.min.js'
-	], function(options){
-    L.control.measure({
-      primaryLengthUnit: 'meters',
-      secondaryLengthUnit: 'feet',
-      primaryAreaUnit: 'sqmeters',
-      secondaryAreaUnit: 'acres'
-    }).addTo(options.map);
+    	'measure/build/app.js',
+    	'measure/build/app.css'
+	], function(options, App){
+	new App(options.map);
 });
diff --git a/plugins/measure/public/package.json b/plugins/measure/public/package.json
new file mode 100644
index 000000000..5066d7c5e
--- /dev/null
+++ b/plugins/measure/public/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "measure",
+  "version": "1.0.0",
+  "description": "",
+  "main": "index.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "leaflet-measure-ex": "^3.0.4"
+  }
+}
diff --git a/plugins/measure/public/webpack.config.js b/plugins/measure/public/webpack.config.js
new file mode 100644
index 000000000..391672a94
--- /dev/null
+++ b/plugins/measure/public/webpack.config.js
@@ -0,0 +1,76 @@
+// Magic to include node_modules of root WebODM's directory
+process.env.NODE_PATH = "../../../node_modules";
+require("module").Module._initPaths();
+
+let path = require("path");
+let webpack = require('webpack');
+let ExtractTextPlugin = require('extract-text-webpack-plugin');
+let LiveReloadPlugin = require('webpack-livereload-plugin');
+
+module.exports = {
+  context: __dirname,
+
+  entry: {
+    app: ['./app.jsx']
+  },
+
+  output: {
+      path: path.join(__dirname, './build'),
+      filename: "[name].js",
+      libraryTarget: "amd"
+  },
+
+  plugins: [
+    new LiveReloadPlugin(),
+    new ExtractTextPlugin('[name].css', {
+        allChunks: true
+    })
+  ],
+
+  module: {
+    rules: [
+      { 
+        test: /\.jsx?$/, 
+        exclude: /(node_modules|bower_components)/, 
+        use: [
+          {
+            loader: 'babel-loader',
+            query: {
+              "plugins": [
+                 'syntax-class-properties',
+                 'transform-class-properties'
+              ],
+              presets: ['es2015', 'react']
+            }
+          }
+        ],
+      },
+      {
+        test: /\.s?css$/,
+        use: ExtractTextPlugin.extract({
+          use: 'css-loader!sass-loader'
+        })
+      },
+      {
+        test: /\.(png|jpg|jpeg|svg)/,
+        loader: "url-loader?limit=100000"
+      }
+    ]
+  },
+
+  resolve: {
+    modules: ['node_modules', 'bower_components'],
+    extensions: ['.js', '.jsx']
+  },
+
+  externals: {
+    // require("jquery") is external and available
+    //  on the global let jQuery
+    "jquery": "jQuery",
+    "SystemJS": "SystemJS",
+    "PluginsAPI": "PluginsAPI",
+    "leaflet": "leaflet",
+    "ReactDOM": "ReactDOM",
+    "React": "React"
+  }
+}
\ No newline at end of file
diff --git a/plugins/posm-gcpi/plugin.py b/plugins/posm-gcpi/plugin.py
index 9d713846b..b09cd720a 100644
--- a/plugins/posm-gcpi/plugin.py
+++ b/plugins/posm-gcpi/plugin.py
@@ -6,7 +6,7 @@ class Plugin(PluginBase):
     def main_menu(self):
         return [Menu("GCP Interface", self.public_url(""), "fa fa-map-marker fa-fw")]
 
-    def mount_points(self):
+    def app_mount_points(self):
         return [
             MountPoint('$', lambda request: render(request, self.template_path("app.html"), {'title': 'GCP Editor'}))
         ]
diff --git a/plugins/test/plugin.py b/plugins/test/plugin.py
index 6fcb6ef59..68dc25899 100644
--- a/plugins/test/plugin.py
+++ b/plugins/test/plugin.py
@@ -12,7 +12,7 @@ def include_js_files(self):
     def include_css_files(self):
     	return ['test.css']
 
-    def mount_points(self):
+    def app_mount_points(self):
         return [
             MountPoint('/app_mountpoint/$', lambda request: render(request, self.template_path("app.html"), {'title': 'Test'}))
         ]
diff --git a/plugins/test/public/package.json b/plugins/test/public/package.json
new file mode 100644
index 000000000..46cba507d
--- /dev/null
+++ b/plugins/test/public/package.json
@@ -0,0 +1,14 @@
+{
+  "name": "public",
+  "version": "1.0.0",
+  "description": "",
+  "main": "main.js",
+  "scripts": {
+    "test": "echo \"Error: no test specified\" && exit 1"
+  },
+  "author": "",
+  "license": "ISC",
+  "dependencies": {
+    "pad-left": "^2.1.0"
+  }
+}
diff --git a/plugins/volume/__init__.py b/plugins/volume/__init__.py
deleted file mode 100644
index 48aad58ec..000000000
--- a/plugins/volume/__init__.py
+++ /dev/null
@@ -1 +0,0 @@
-from .plugin import *
diff --git a/plugins/volume/disabled b/plugins/volume/disabled
deleted file mode 100644
index e69de29bb..000000000
diff --git a/plugins/volume/manifest.json b/plugins/volume/manifest.json
deleted file mode 100644
index c4d68fe42..000000000
--- a/plugins/volume/manifest.json
+++ /dev/null
@@ -1,13 +0,0 @@
-{
-	"name": "Volume Measurements",
-	"webodmMinVersion": "0.5.0",
-	"description": "A plugin to compute volume measurements from a DSM",
-	"version": "0.1.0",
-	"author": "Piero Toffanin",
-	"email": "pt@masseranolabs.com",
-	"repository": "https://github.com/OpenDroneMap/WebODM",
-	"tags": ["volume", "measurements"],
-	"homepage": "https://github.com/OpenDroneMap/WebODM",
-	"experimental": true,
-	"deprecated": false
-}
\ No newline at end of file
diff --git a/plugins/volume/plugin.py b/plugins/volume/plugin.py
deleted file mode 100644
index d9513cd19..000000000
--- a/plugins/volume/plugin.py
+++ /dev/null
@@ -1,5 +0,0 @@
-from app.plugins import PluginBase
-
-class Plugin(PluginBase):
-    def include_js_files(self):
-    	return ['hello.js']
\ No newline at end of file
diff --git a/plugins/volume/public/hello.js b/plugins/volume/public/hello.js
deleted file mode 100644
index cf511f6a1..000000000
--- a/plugins/volume/public/hello.js
+++ /dev/null
@@ -1,6 +0,0 @@
-PluginsAPI.Map.willAddControls(function(options){
-	console.log("GOT: ", options);
-});
-PluginsAPI.Map.didAddControls(function(options){
-	console.log("GOT2: ", options);
-});
\ No newline at end of file
diff --git a/requirements.txt b/requirements.txt
index 923ddd50a..b81604fcc 100644
--- a/requirements.txt
+++ b/requirements.txt
@@ -21,6 +21,7 @@ djangorestframework-jwt==1.9.0
 drf-nested-routers==0.11.1
 funcsigs==1.0.2
 futures==3.0.5
+geojson==2.3.0
 gunicorn==19.7.1
 itypes==1.1.0
 kombu==4.1.0
diff --git a/webodm/settings.py b/webodm/settings.py
index 4682fea94..7adfbe7fe 100644
--- a/webodm/settings.py
+++ b/webodm/settings.py
@@ -249,6 +249,7 @@
 
 # File uploads
 MEDIA_ROOT = os.path.join(BASE_DIR, 'app', 'media')
+MEDIA_TMP = os.path.join(MEDIA_ROOT, 'tmp')
 
 # Store flash messages in cookies
 MESSAGE_STORAGE = 'django.contrib.messages.storage.cookie.CookieStorage'
diff --git a/webpack.config.js b/webpack.config.js
index a00512680..c729b948b 100644
--- a/webpack.config.js
+++ b/webpack.config.js
@@ -73,6 +73,7 @@ module.exports = {
     // require("jquery") is external and available
     //  on the global let jQuery
     "jquery": "jQuery",
-    "SystemJS": "SystemJS"
+    "SystemJS": "SystemJS",
+    "React": "React"
   }
 }
\ No newline at end of file
diff --git a/worker/tasks.py b/worker/tasks.py
index 672993e70..ad84d38dc 100644
--- a/worker/tasks.py
+++ b/worker/tasks.py
@@ -8,6 +8,7 @@
 
 from app.models import Project
 from app.models import Task
+from app.plugins.grass_engine import grass, GrassEngineException
 from nodeodm import status_codes
 from nodeodm.models import ProcessingNode
 from webodm import settings
@@ -77,3 +78,12 @@ def process_pending_tasks():
 
     for task in tasks:
         process_task.delay(task.id)
+
+
+@app.task
+def execute_grass_script(script, serialized_context = {}):
+    try:
+        ctx = grass.create_context(serialized_context)
+        return ctx.execute(script)
+    except GrassEngineException as e:
+        return {'error': str(e)}
\ No newline at end of file