kasper/seisobs-webapp
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remove TileLayer.Grayscale.js

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This commit is contained in:
Kasper D. Fischer 2020-07-15 23:34:19 +02:00
parent 2492d44c70
commit 26adc34322
3 changed files with 0 additions and 58 deletions
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56
www/external/TileLayer.Grayscale.js vendored
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@ -1,56 +0,0 @@
/*
* L.TileLayer.Grayscale is a regular tilelayer with grayscale makeover.
*/
L.TileLayer.Grayscale = L.TileLayer.extend({
options: {
quotaRed: 21,
quotaGreen: 71,
quotaBlue: 8,
quotaDividerTune: 0,
quotaDivider: function() {
return this.quotaRed + this.quotaGreen + this.quotaBlue + this.quotaDividerTune;
}
},
initialize: function (url, options) {
options = options || {}
options.crossOrigin = true;
L.TileLayer.prototype.initialize.call(this, url, options);
this.on('tileload', function(e) {
this._makeGrayscale(e.tile);
});
},
_createTile: function () {
var tile = L.TileLayer.prototype._createTile.call(this);
tile.crossOrigin = "Anonymous";
return tile;
},
_makeGrayscale: function (img) {
if (img.getAttribute('data-grayscaled'))
return;
img.crossOrigin = '';
var canvas = document.createElement("canvas");
canvas.width = img.width;
canvas.height = img.height;
var ctx = canvas.getContext("2d");
ctx.drawImage(img, 0, 0);
var imgd = ctx.getImageData(0, 0, canvas.width, canvas.height);
var pix = imgd.data;
for (var i = 0, n = pix.length; i < n; i += 4) {
pix[i] = pix[i + 1] = pix[i + 2] = (this.options.quotaRed * pix[i] + this.options.quotaGreen * pix[i + 1] + this.options.quotaBlue * pix[i + 2]) / this.options.quotaDivider();
}
ctx.putImageData(imgd, 0, 0);
img.setAttribute('data-grayscaled', true);
img.src = canvas.toDataURL();
}
});
L.tileLayer.grayscale = function (url, options) {
return new L.TileLayer.Grayscale(url, options);
};

1
www/index.html.de
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@ -33,7 +33,6 @@
<!-- Leaflet -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.6.0/leaflet.js" integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew==" crossorigin="anonymous"></script>
<!-- <script type="text/javascript" src="external/TileLayer.Grayscale.js"></script> --> <! version of 2017-11-01 downloaded 2020-07-15 -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-dvf/0.3.1/leaflet-dvf.markers.min.js" integrity="sha512-R/iucaxFnDFUTdZRxUvxzc+sypDQhqnxInBmNjgGE0RaiMl/ektVB1wFS/L0xDZmLFPpEGR0Kw3GEBgtQNFHyg==" crossorigin="anonymous"></script>
<script src="external/leaflet-providers.js"></script>
<script src="external/jQuery.print.min.js"></script>

1
www/index.html.en
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@ -33,7 +33,6 @@
<!-- Leaflet -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet/1.6.0/leaflet.js" integrity="sha512-gZwIG9x3wUXg2hdXF6+rVkLF/0Vi9U8D2Ntg4Ga5I5BZpVkVxlJWbSQtXPSiUTtC0TjtGOmxa1AJPuV0CPthew==" crossorigin="anonymous"></script>
<!-- <script type="text/javascript" src="external/TileLayer.Grayscale.js"></script> --> <! version of 2017-11-01 downloaded 2020-07-15 -->
<script src="https://cdnjs.cloudflare.com/ajax/libs/leaflet-dvf/0.3.1/leaflet-dvf.markers.min.js" integrity="sha512-R/iucaxFnDFUTdZRxUvxzc+sypDQhqnxInBmNjgGE0RaiMl/ektVB1wFS/L0xDZmLFPpEGR0Kw3GEBgtQNFHyg==" crossorigin="anonymous"></script>
<script src="external/leaflet-providers.js"></script>
<script src="external/jQuery.print.min.js"></script>