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42 lines
1.4 KiB
42 lines
1.4 KiB
2 years ago
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(function (factory, window) {
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// define an AMD module that relies on 'leaflet'
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if (typeof define === 'function' && define.amd) {
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define(['leaflet'], factory);
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// define a Common JS module that relies on 'leaflet'
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} else if (typeof exports === 'object') {
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module.exports = factory(require('leaflet'));
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}
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// attach your plugin to the global 'L' variable
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if (typeof window !== 'undefined' && window.L && !window.L.EdgeBuffer) {
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factory(window.L);
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}
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}(function (L) {
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L.EdgeBuffer = {
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previousMethods: {
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getTiledPixelBounds: L.GridLayer.prototype._getTiledPixelBounds
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}
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};
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L.GridLayer.include({
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_getTiledPixelBounds : function(center, zoom, tileZoom) {
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var pixelBounds = L.EdgeBuffer.previousMethods.getTiledPixelBounds.call(this, center, zoom, tileZoom);
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// Default is to buffer one tiles beyond the pixel bounds (edgeBufferTiles = 1).
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var edgeBufferTiles = 1;
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if ((this.options.edgeBufferTiles !== undefined) && (this.options.edgeBufferTiles !== null)) {
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edgeBufferTiles = this.options.edgeBufferTiles;
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}
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if (edgeBufferTiles > 0) {
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var pixelEdgeBuffer = L.GridLayer.prototype.getTileSize.call(this).multiplyBy(edgeBufferTiles);
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pixelBounds = new L.Bounds(pixelBounds.min.subtract(pixelEdgeBuffer), pixelBounds.max.add(pixelEdgeBuffer));
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}
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return pixelBounds;
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}
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});
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}, window));
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