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mightyscape-1.1-deprecated/extensions/fablabchemnitz/imagetracerjs/imagetracerjs-master/nodecli/nodecli.js
2021-07-23 02:36:56 +02:00

85 lines
4.0 KiB
JavaScript

"use strict";
var fs = require('fs');
var ImageTracer = require( __dirname + '/../imagetracer_v1.2.6' );
// This example uses https://github.com/arian/pngjs
// , but other libraries can be used to load an image file to an ImageData object.
var PNGReader = require( __dirname + '/PNGReader' );
// CLI arguments to options
var infilename = process.argv[2], outfilename = infilename+'.svg', options = {}, thisargname = '';
if(process.argv.length>3){
for(var i=3; i<process.argv.length; i+=2 ){
thisargname = process.argv[i].toLowerCase();
// Output file name
if(thisargname === 'outfilename' || thisargname === '-outfilename'){ outfilename = process.argv[i+1]; }
// Tracing
if(thisargname === 'corsenabled' || thisargname === '-corsenabled'){ options.corsenabled = (process.argv[i+1].toLowerCase() === 'true'); }
if(thisargname === 'ltres' || thisargname === '-ltres'){ options.ltres = parseFloat(process.argv[i+1]); }
if(thisargname === 'qtres' || thisargname === '-qtres'){ options.qtres = parseFloat(process.argv[i+1]); }
if(thisargname === 'pathomit' || thisargname === '-pathomit'){ options.pathomit = parseInt(process.argv[i+1]); }
if(thisargname === 'rightangleenhance' || thisargname === '-rightangleenhance'){ options.rightangleenhance = (process.argv[i+1].toLowerCase() === 'true'); }
// Color quantization
if(thisargname === 'colorsampling' || thisargname === '-colorsampling'){ options.colorsampling = parseInt(process.argv[i+1]); }
if(thisargname === 'numberofcolors' || thisargname === '-numberofcolors'){ options.numberofcolors = parseInt(process.argv[i+1]); }
if(thisargname === 'mincolorratio' || thisargname === '-mincolorratio'){ options.mincolorratio = parseFloat(process.argv[i+1]); }
if(thisargname === 'colorquantcycles' || thisargname === '-colorquantcycles'){ options.colorquantcycles = parseInt(process.argv[i+1]); }
// Layering method
if(thisargname === 'layering' || thisargname === '-layering'){ options.layering = process.argv[i+1]; }
// SVG rendering
if(thisargname === 'strokewidth' || thisargname === '-strokewidth'){ options.strokewidth = parseFloat(process.argv[i+1]); }
if(thisargname === 'linefilter' || thisargname === '-linefilter'){ options.linefilter = (process.argv[i+1].toLowerCase() === 'true'); }
if(thisargname === 'scale' || thisargname === '-scale'){ options.scale = parseFloat(process.argv[i+1]); }
if(thisargname === 'roundcoords' || thisargname === '-roundcoords'){ options.roundcoords = parseInt(process.argv[i+1]); }
if(thisargname === 'viewbox' || thisargname === '-viewbox'){ options.viewbox = (process.argv[i+1].toLowerCase() === 'true'); }
if(thisargname === 'desc' || thisargname === '-desc'){ options.desc = (process.argv[i+1].toLowerCase() === 'true'); }
if(thisargname === 'lcpr' || thisargname === '-lcpr'){ options.lcpr = parseFloat(process.argv[i+1]); }
if(thisargname === 'qcpr' || thisargname === '-qcpr'){ options.qcpr = parseFloat(process.argv[i+1]); }
// Blur
if(thisargname === 'blurradius' || thisargname === '-blurradius'){ options.blurradius = parseInt(process.argv[i+1]); }
if(thisargname === 'blurdelta' || thisargname === '-blurdelta'){ options.blurdelta = parseInt(process.argv[i+1]); }
}// End of argv loop
}// End of command line argument list length check
fs.readFile(
infilename, // Input file path
function( err, bytes ){
if(err){ console.log(err); throw err; }
var reader = new PNGReader(bytes);
reader.parse( function( err, png ){
if(err){ console.log(err); throw err; }
// creating an ImageData object
var myImageData = { width:png.width, height:png.height, data:png.pixels };
// tracing to SVG string
var svgstring = ImageTracer.imagedataToSVG( myImageData, options );
// writing to file
fs.writeFile(
outfilename, // Output file path
svgstring,
function(err){ if(err){ console.log(err); throw err; } console.log( outfilename+' was saved!' ); }
);
});// End of reader.parse()
}// End of readFile callback()
);// End of fs.readFile()