mirror of
https://github.com/placeAtlas/atlas.git
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77 lines
1.8 KiB
JavaScript
77 lines
1.8 KiB
JavaScript
/*
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========================================================================
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The 2022 /r/place Atlas
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An Atlas of Reddit's 2022 /r/place, with information to each
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artwork of the canvas provided by the community.
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Copyright (c) 2017 Roland Rytz <roland@draemm.li>
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Copyright (c) 2022 r/placeAtlas2 contributors
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Licensed under the GNU Affero General Public License Version 3
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https://place-atlas.stefanocoding.me/license.txt
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========================================================================
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*/
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function initOverlap(){
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window.renderBackground = renderBackground
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var hovered = [];
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buildObjectsList(null, null);
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renderBackground(atlas);
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render();
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applyView();
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render();
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updateLines();
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var args = window.location.search;
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if(args){
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id = args.split("id=")[1];
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if(id){
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highlightEntryFromUrl();
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}
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}
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function renderBackground(atlas) {
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backgroundContext.clearRect(0, 0, canvas.width, canvas.height);
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backgroundContext.fillStyle = "rgba(255, 255, 255, 1)";
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backgroundContext.fillRect(0, 0, canvas.width, canvas.height);
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for(var i = 0; i < atlas.length; i++){
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var path = atlas[i].path;
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backgroundContext.beginPath();
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if(path[0]){
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backgroundContext.moveTo(path[0][0], path[0][1]);
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}
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for(var p = 1; p < path.length; p++){
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backgroundContext.lineTo(path[p][0], path[p][1]);
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}
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backgroundContext.closePath();
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backgroundContext.fillStyle = "rgba(0, 0, 255, 0.2)";
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backgroundContext.fill();
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}
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var pixels = backgroundContext.getImageData(0, 0, backgroundCanvas.width, backgroundCanvas.height).data;
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var blank = 0;
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for(var i = 0; i < pixels.length; i+=4){
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if(pixels[i] == 255){
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blank++;
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}
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}
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console.log(blank+" blank pixels, which are "+Math.round(blank/100)/100+"% of the canvas ("+(100-Math.round(blank/100)/100)+"% mapped)");
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}
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}
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