add examples

examples/pwall/pwall.py

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+from amworkflow.api import amWorkflow as aw
+import numpy as np
+@aw.engine.amworkflow("draft")
+def geometry_spawn(pm):
+#This is where to define your model.
+    th = pm.thickness
+    l = pm.length
+    height = pm.height*3
+    g = aw.geom
+    hth = th * 0.5
+    display = True
+    p0 = g.pnt(0, hth, 0)
+    p1 = g.pnt(l * 0.5, hth)
+    p2 = g.pnt(l, (np.sqrt(3) * l) * 0.5 + hth)
+    p3 = g.pnt(2 * l, (np.sqrt(3) * l) * 0.5 + hth)
+    p4 = g.pnt(5 * l * 0.5, hth)
+    pu = [p0, p1, p2, p3, p4] #one unit of the points _/-\
+    alist = np.array([list(i.Coord()) for i in pu]) # get the coord from the points
+    put1 = g.p_translate(pu, [3 * l, 0, 0]) # Translate the unit _/-\_/-\
+    end_p = np.copy(put1[-1]) 
+    end_p[0] += l * 0.5 # Add one point to make half of the infill _/-\_/-\_
+    pm = pu + put1 # integrate the points together
+    pm.append(end_p) # add the point
+    # pm_cnt = g.p_center_of_mass(pm)
+    # pm_cnt[0] -=hth
+    pmr = g.p_rotate(pm, angle_z=np.pi) # Rotate the half infill to make it upside down
+    # pmr = g.p_translate(pmr, np.array([-th,0,0]))
+    cnt2 = g.p_center_of_mass(pmr) #Get the center of mass of all points
+    t_len = cnt2[1] * 2 #2 times the y coord would be the length for translation
+    pmrt = g.p_translate(pmr, [0, -t_len, 0])
+    pm_lt = np.vstack((alist, put1))
+    pm_lt = np.vstack((pm_lt, np.array(end_p)))
+    pmf = np.vstack((pm_lt, pmrt))
+    p5 = g.pnt(0, -(1.5*th + (np.sqrt(3) * l) * 0.5)) # create points for the outerline
+    p6 = g.pnt(6 * l + th, -(1.5*th + (np.sqrt(3) * l) * 0.5))
+    p7 = g.pnt(6 * l + th, (1.5*th + (np.sqrt(3) * l) * 0.5))
+    p8 = g.pnt(0, (1.5*th + (np.sqrt(3) * l) * 0.5))
+    pout = [p5, p6, p7, p8]
+    pout_nd = [i.Coord() for i in pout]
+    pmfo = np.vstack((pmf, pout_nd))
+    pmfo_cnt = g.p_center_of_mass(pmfo)
+    # pmfo = g.p_rotate(pmfo, angle_z=np.pi, cnt = pmfo_cnt)
+    # pmfo = g.p_translate(pmfo, np.array([6 * l + th,0,0]))
+    wall_maker = g.CreateWallByPoints(pmfo, th, height)
+    wall_maker.is_close = True
+    # wall_maker.visualize("linear")
+    p = wall_maker.Shape()
+    return p#TopoDS_Shape
+
+# Info    :   1st: [3536, 12, 23374] #15
+# Info    :   2nd: [3536, 12, 13031] #8
+# Info    : The dihedral angle between them is 6.0792e-05 degree.
+# Info    : Hint: You may use Mesh.AngleToleranceFacetOverlap to decrease the dihedral angle tolerance 0.1 (degree)
+# Error   : Invalid boundary mesh (overlapping facets) on surface 15 surface 8

examples/pwall/tips.txt

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+You could use the command
+python pwall.py -n pwall -gp thickness length height -gpv 8 20 30
+You may also notice that there is a parameter "draft" in the decorator @aw.engine.amworkflow("draft")
+This will trigger a QT5 window and you can preview your design after clicking "Display Geometry".
+In draft mode no data will be stored in db.
+To create a real model, simply delete the string "draft".