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OpenJsCad/processfile.html

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OpenJsCad parser added, to parse local files with .jscad extension
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<!DOCTYPE html>
<html><head>
<script src="lightgl.js"></script>
<script src="csg.js"></script>
<script src="openjscad.js"></script>
<style>
body {
font: 14px/20px 'Helvetica Neue Light', HelveticaNeue-Light, 'Helvetica Neue', Helvetica, Arial, sans-serif;
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max-width: 820px;
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}
pre, code, textarea {
font: 12px/20px Monaco, monospace;
border: 1px solid #CCC;
border-radius: 3px;
background: #F9F9F9;
padding: 0 3px;
color: #555;
}
pre, textarea {
padding: 10px;
width: 100%;
}
textarea:focus {
outline: none;
}
#filedropzone {
border: 2px dashed #bbb;
-moz-border-radius: 5px;
-webkit-border-radius: 5px;
border-radius: 5px;
padding: 15px;
color: black;
}
#filedropzone_empty {
text-align: center;
color: #bbb;
}
#filedropzone_filled {
color: black;
display: none;
}
#filebuttons {
float: right;
}
a { color: inherit; }
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canvas { cursor: move; }
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</style>
<script>
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var gCurrentFile = null;
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var gProcessor=null;
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// Show all exceptions to the user:
OpenJsCad.AlertUserOfUncaughtExceptions();
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function onload()
{
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gProcessor = new OpenJsCad.Processor(document.getElementById("viewer"));
setupDragDrop();
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}
function setupDragDrop()
{
// Check for the various File API support.
if (window.File && window.FileReader && window.FileList) {
// Great success! All the File APIs are supported.
} else {
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throw new Error("Error: Your browser does not fully support the HTML File API");
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}
var dropZone = document.getElementById('filedropzone');
dropZone.addEventListener('dragover', function(evt) {
evt.stopPropagation();
evt.preventDefault();
evt.dataTransfer.dropEffect = 'copy';
}, false);
dropZone.addEventListener('drop', handleFileSelect, false);
}
function handleFileSelect(evt)
{
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evt.stopPropagation();
evt.preventDefault();
if(!evt.dataTransfer) throw new Error("Not a datatransfer (1)");
if(!evt.dataTransfer.files) throw new Error("Not a datatransfer (2)");
if(evt.dataTransfer.files.length != 1)
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{
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throw new Error("Please drop a single .jscad file");
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}
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var file = evt.dataTransfer.files[0];
if(!file.name.match(/\.jscad$/i))
{
throw new Error("Please drop a file with .jscad extension");
}
if(file.size == 0)
{
throw new Error("You have dropped an empty file");
}
gCurrentFile = file;
gPreviousModificationTime = "";
fileChanged();
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}
function fileChanged()
{
var dropZone = document.getElementById('filedropzone');
if(gCurrentFile)
{
var txt = "Current file: "+gCurrentFile.name;
document.getElementById("currentfile").innerHTML = txt;
document.getElementById("filedropzone_filled").style.display = "block";
document.getElementById("filedropzone_empty").style.display = "none";
}
else
{
document.getElementById("filedropzone_filled").style.display = "none";
document.getElementById("filedropzone_empty").style.display = "block";
}
parseFile();
}
function parseFile()
{
if(gCurrentFile)
{
var reader = new FileReader();
reader.onload = function(evt) {
var txt = evt.target.result;
};
reader.onloadend = function(evt) {
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if (evt.target.readyState == FileReader.DONE)
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{
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var jscadscript = evt.target.result;
if(jscadscript == "")
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{
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if(document.location.toString().match(/^file\:\//i))
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{
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throw new Error("Could not read file. You are using a local copy of OpenJsCad; if you are using Chrome, you need to launch it with the following command line option:\n\n--allow-file-access-from-files\n\notherwise the browser will not have access to uploaded files due to security restrictions.");
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}
else
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{
throw new Error("Could not read file.");
}
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}
else
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{
if(gProcessor)
{
var filename = gCurrentFile.name;
filename = filename.replace(/^.*\/([^\/]*)$/, "$1");
gProcessor.setJsCad(jscadscript, filename);
}
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}
}
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else
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{
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throw new Error("Failed to read file");
if(gProcessor) gProcessor.clearViewer();
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}
};
reader.readAsText(gCurrentFile, "UTF-8");
}
}
</script>
<title>OpenJsCad parser</title>
<body onload="onload()">
<h1>OpenJsCad parser</h1>
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<div id="viewer"></div>
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<br>
<div id="filedropzone">
<div id="filedropzone_empty">Drop your .jscad file here</div>
<div id="filedropzone_filled">
<span id="currentfile">dfghdfgh</span>
<div id="filebuttons">
<button id="getstlbutton" style="display:none" onclick="getStl();">Get STL</button>
<button onclick="parseFile();">Reload</button>
</div>
</div>
</div>
<br>
<h2>Instructions:</h2>
Create a new file in your favorite text editor. To get started enter the following text:
<br>
CSG construction must now be done in a main() function instead of in global scope; Added CSG properties and connectors; file processing is now done in the background (Web Workers); STL file is now downloaded instead of copied from a text area
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<pre>function main() {
var cube = CSG.roundedCube({radius: 10, roundradius: 2, resolution: 16});
var sphere = CSG.sphere({radius: 10, resolution: 16}).translate([5, 5, 5]);
return cube.union(sphere);
}
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</pre>
Save this to a file on your desktop with .jscad extension. Then drag &amp; drop the file from your desktop
to the box above (marked with 'drop your .jscad file here).<br><br>
The 3d model should now appear. You can continue to make changes to your .jscad file. Just press Reload
to parse the changes, you do not need to drag &amp; drop the file again.
<br><br>
CSG construction must now be done in a main() function instead of in global scope; Added CSG properties and connectors; file processing is now done in the background (Web Workers); STL file is now downloaded instead of copied from a text area
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When finished press Generate STL to generate the STL file. Then click Save STL and save it to
a file with .stl extension.
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<br><br>
For more information about OpenJsCad see the <a href="index.html">introduction</a>.
</body>
</html>
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