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Layout adjustments and responsive design #4

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372 changes: 224 additions & 148 deletions index.html
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -16,162 +16,238 @@
limitations under the License.
-->

<head>
<title>Noise Maker</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="noiseMaker.css">
<script src="noiseMaker.js"></script>
<script>
function refreshImage()
{
var spec = {};

spec.randseed = document.getElementById("randseed").value;
spec.period = document.getElementById("period").value;
spec.levels = document.getElementById("numLevels").value;
spec.atten = document.getElementById("atten").value;
spec.absolute = document.getElementById("absolute").checked;
spec.color = document.getElementById("noiseColor").checked;
spec.alpha = document.getElementById("noiseAlpha").checked;

var imgWidth = document.getElementById("imgWidth").value;
var imgHeight = document.getElementById("imgHeight").value;

var c = document.createElement('canvas');
c.width = imgWidth;
c.height = imgHeight;

var ctx = c.getContext("2d");

var img = new Image(imgWidth, imgHeight);
//img.createChecker(period);
// img.createPerlinNoise(period, randseed);
img.createTurbulence(spec);
var imgData = img.toImageContext(ctx);
ctx.putImageData(imgData, 0, 0);

var dt = c.toDataURL('image/png');
displayImage.src = dt;

};

function dlCanvas()
{
var dt = displayImage.src;
this.href = dt;
};

function copyClipboardCanvas()
{
var dt = previewCanvas.toDataURL('image/png');

displayImage.src = dt;
};

window.onload = function()
{
dl.addEventListener('click', dlCanvas, false);

var form = document.getElementById("controlForm");
form.onsubmit = function() {return false};
form.onchange = refreshImage;

refreshImage();
};
</script>
</head>
<body>
<div class="mainBody">
<h1>Perlin Noise Maker</h1>
<p>Create your own images of Perlin noise! This app will generate tileable Perlin noise textures which is a useful raw material for may image processing applications.</p>

<p>Adjust the values below to change the proerties of the image.</p>
<p>To save the image, click on the <i>Download Image</i> link below. Alternately, you can right click the image and use your web browser's menu to save it to disk.</p>

<img id="displayImage" style="border:1px solid #000000;"
alt="noise.png"/>

<!--
<canvas id="previewCanvas" width="256" height="256" style="border:1px solid #000000;"></canvas>
-->

<script>
</script>

<head>
<title>Noise Maker</title>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="stylesheet" type="text/css" href="noiseMaker.css">
<script src="noiseMaker.js"></script>
<script>
function refreshImage()
{
var spec = {};

spec.randseed = document.getElementById("randseed").value;
spec.period = document.getElementById("period").value;
spec.levels = document.getElementById("numLevels").value;
spec.atten = document.getElementById("atten").value;
spec.absolute = document.getElementById("absolute").checked;
spec.color = document.getElementById("noiseColor").checked;
spec.alpha = document.getElementById("noiseAlpha").checked;

var imgWidth = document.getElementById("imgWidth").value;
var imgHeight = document.getElementById("imgHeight").value;

var c = document.createElement('canvas');
c.width = imgWidth;
c.height = imgHeight;

var ctx = c.getContext("2d");

var img = new Image(imgWidth, imgHeight);
//img.createChecker(period);
// img.createPerlinNoise(period, randseed);
img.createTurbulence(spec);
var imgData = img.toImageContext(ctx);
ctx.putImageData(imgData, 0, 0);

var dt = c.toDataURL('image/png');
displayImage.src = dt;

};

function dlCanvas()
{
var dt = displayImage.src;
this.href = dt;
};

// Requires save connection (HTTPS)
function copyClipboardCanvas()
Copy link
Author

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Potential implementation of copying to clipboard implemented, but in order for browsers to actually copy those files into the clipboard they require a HTTPS connection, there for a implementation that doesn't work at the moment, because the website is missing a security certificate. (disabled by setting the buttons style to "display:none;" in line 196)

{
var c = document.createElement('canvas');
c.width = displayImage.width;
c.height = displayImage.height;

var ctx = c.getContext('2d');
ctx.drawImage(displayImage, 0, 0);

c.toBlob(function (blob)
{
if (navigator.clipboard && navigator.clipboard.write)
{
var data = new DataTransfer();
data.items.add(new File([blob], 'image.png', { type: 'image/png' }));

navigator.clipboard.write(data).then(() =>
{
console.log('Image copied to clipboard');
}).catch((error) =>
{
console.error('Failed to copy image to clipboard:', error);
});
} else
{
alert("Copying to clipboard only available with save connection (HTTPS)!")
}
});
}





window.onload = function ()
{
dl.addEventListener('click', dlCanvas, false);
cb.addEventListener('click', copyClipboardCanvas);

var form = document.getElementById("controlForm");
form.onsubmit = function () { return false };
form.onchange = refreshImage;

refreshImage();
};
</script>
</head>

<body>
<div class="mainBody">
<title>Perlin Noise Maker</title>
<p>Create your own images of Perlin noise! This app will generate tileable Perlin noise textures which is a
useful raw material for may image processing applications.</p>

<p>Adjust the values below to change the proerties of the image.</p>
<p>To save the image, click on the <i>Download Image</i> link below. Alternately, you can right click the image
and use your web browser's menu to save it to disk.</p>

<h1>Generator</h1>
<div class="generator">
<form id="controlForm" action="">
<table border="0">
<tr><td>
Random Seed: <input id="randseed" type="number" value="1"/>
</td></tr>
<!--
Width: <select id="imgWidth">
<option>16</option>
<option>32</option>
<option>64</option>
<option>128</option>
<option>256</option>
<option>512</option>
<option>1024</option>
</select></br>
-->
<tr><td>
Width: <input id="imgWidth" type="number" value="256"/>
</td></tr>
<tr><td>
Height: <input id="imgHeight" type="number" value="256"/>
</td></tr>
<tr><td>
Cell Size: <input id="period" type="number" value="16"/>
</td></tr>
<tr><td>
Levels: <input id="numLevels" type="number" value="1" min="1" max="8"/>
</td></tr>
<tr><td>
Attenuation: <input id="atten" type="number" value=".4" min="-1" max="2" step=".1"/>
</td></tr>
<tr><td>
Groovy: <input id="absolute" type="checkbox"/>
</td></tr>
<tr><td>
Color: <input id="noiseColor" type="checkbox"/>
</td></tr>
<tr><td>
Alpha: <input id="noiseAlpha" type="checkbox"/>
</td></tr>
<table id="settings" border="0">
<tr>
<td><label class="setting-label">Random Seed:</label></td>
<td><input id="randseed" type="number" value="1" /></td>
<script>
const randomInput = document.getElementById('randseed');
// generates a random number between 0 and 99999
const randomNumber = Math.floor(Math.random() * 100000);
// pads the number with leading zeroes to ensure it has 5 digits
randomInput.value = randomNumber.toString().padStart(5, '0');
</script>
</tr>
<!--
Width: <select id="imgWidth">
<option>16</option>
<option>32</option>
<option>64</option>
<option>128</option>
<option>256</option>
<option>512</option>
<option>1024</option>
</select></br>
-->
<tr>
<td><label class="setting-label">Width:</label></td>
<td><input id="imgWidth" type="number" value="256" /></td>
</tr>
<tr>
<td><label class="setting-label">Height:</label></td>
<td><input id="imgHeight" type="number" value="256" /></td>
</tr>
<tr>
<td><label class="setting-label">Cell Size:</label></td>
<td><input id="period" type="number" value="16" /></td>
</tr>
<tr>
<td><label class="setting-label">Levels:</label></td>
<td><input id="numLevels" type="number" value="1" min="1" max="8" /></td>
</tr>
<tr>
<td><label class="setting-label">Attenuation:</label></td>
<td><input id="atten" type="number" value=".4" min="-1" max="2" step=".1" /></td>
</tr>
<tr>
<td><label class="setting-label">Groovy:</label></td>
<td><input id="absolute" type="checkbox" /></td>
</tr>
<tr>
<td><label class="setting-label">Color:</label></td>
<td><input id="noiseColor" type="checkbox" /></td>
</tr>
<tr>
<td><label class="setting-label">Alpha:</label></td>
<td><input id="noiseAlpha" type="checkbox" /></td>
</tr>
</table>
</form>

<p><a id="dl" download="noiseTexture.png" class="button">Download Image</a></p>
<br/>
<!--
<a id="copyClipboard">Copy to clipboard</a><br/>
<br/>
<img class="aligncenter" src="data:image/png;base64,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" alt="beastie.png" />
<br/>
-->
<h2>How it works</h2>

<p><span class="keyword">Width</span> and <span class="keyword">Height</span> determine the width and height of the final image in pixels.</p>

<p><span class="keyword">Cell size</span> determines the coarseness of the image. Perlin noise is made by blending together gradients that are evenly spaced apart in a grid. By adjusting the spacing, you can change the coarseness of the generated texture. The final image will tile seamlessly if the width and height of the image are whole multiples of the cell spacing. For best results, use numbers that are powers of 2 for the image width, height and cell spacing.</p>

<p><span class="keyword">Levels</span> will blend extra levels of noise into your texture, with each additional level half the resolution of the previous one. Blending several layers of noise can produce a cloudy effect.</p>

<p><span class="keyword">Attenuation</span> controls how multiple levels are mixed. Less attenuation will make the coarser levels more prominent, giving you a rougher look.</p>

<p><span class="keyword">Color</span> and <span class="keyword">Alpha</span> determine which channels in the final image have unique noise generated. By default a black and white texture will be generated (ie, the red, green and blue channels are all set to the same value and the alpha channel is solid white). By checking 'color', you will write different noise textures into each of the red, green and blue channels. By checking 'alpha' you will write noise into the alpha channel.</p>
</form>

<p><span class="keyword">Groovy</span> will rectify the noise. That is, all values in the noise that are mid grey or darker will be inverted and then the entire texture is resampled to fill the full black-to-white range. This creates a groove-like effect in the final texture which can be useful for some applications.</p>
<img id="displayImage" style="border:1px solid #000000;" alt="noise.png" />

<p><span class="keyword">Randseed</span> determines the starting state of the random number generator. By changing it, you can create a different pattern of randomness in your image.</p>
<!--
<canvas id="previewCanvas" width="256" height="256" style="border:1px solid #000000;"></canvas>
-->

<script>
</script>

<hr/>
<a id="dl" download="noiseTexture.png" class="button">Download Image</a>
<a id="cb" download="noiseTexture.png" class="button" style="display: none;">Copy Image</a>
</div>

<br />
<h1>How it works</h1>

<p><a href="#imgWidth"><span class="keyword">Width</span></a> and <a href="#imgHeight"><span
class="keyword">Height</span></a> determine the width and height of
the final image in pixels.</p>

<p><a href="#period"><span class="keyword">Cell size</span></a> determines the coarseness of the image. Perlin
noise is made by
blending together gradients that are evenly spaced apart in a grid. By adjusting the spacing, you can change
the coarseness of the generated texture. The final image will tile seamlessly if the width and height of the
image are whole multiples of the cell spacing. For best results, use numbers that are powers of 2 for the
image width, height and cell spacing.</p>

<p><a href="#numLevels"><span class="keyword">Levels</span></a> will blend extra levels of noise into your
texture, with each additional
level half the resolution of the previous one. Blending several layers of noise can produce a cloudy effect.
</p>

<p><a href="#atten"><span class="keyword">Attenuation</span></a> controls how multiple levels are mixed. Less
attenuation will make
the coarser levels more prominent, giving you a rougher look.</p>

<p><a href="#noiseColor"><span class="keyword">Color</span></a> and <a href="#noiseAlpha"><span
class="keyword">Alpha</span></a> determine which channels in the
final image have unique noise generated. By default a black and white texture will be generated (ie, the
red, green and blue channels are all set to the same value and the alpha channel is solid white). By
checking 'color', you will write different noise textures into each of the red, green and blue channels. By
checking 'alpha' you will write noise into the alpha channel.</p>

<p><a href="#absolute"><span class="keyword">Groovy</span></a> will rectify the noise. That is, all values in
the noise that are mid
grey or darker will be inverted and then the entire texture is resampled to fill the full black-to-white
range. This creates a groove-like effect in the final texture which can be useful for some applications.</p>

<p><a href="#randseed"><span class="keyword">Random Seed</span></a> determines the starting state of the random
number generator. By
changing it, you can create a different pattern of randomness in your image.</p>


<hr />

<footer id="legals-and-links">
<p>&copy; 2015 Mark McKay</p>
<p><a href="https://www.patreon.com/markmckay"><ion-icon name="heart"></ion-icon>Support me on Patreon</a></p>
<p><a href="http://www.kitfox.com">My homepage on kitfox.com</a></p>
<p><a href="https://github.com/blackears/PerlinNoiseMaker">This project is now hosted on Github</a></p>
</div>
</body>
</html>
</footer>
</div>

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reimplemented indentation for and

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