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Included modified copy of KothicJS, removed patches, updated README
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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -0,0 +1,170 @@ | ||
| /* | ||
| Copyright (c) 2011-2013, Darafei Praliaskouski, Vladimir Agafonkin, Maksim Gurtovenko | ||
| All rights reserved. | ||
| Redistribution and use in source and binary forms, with or without modification, are | ||
| permitted provided that the following conditions are met: | ||
| 1. Redistributions of source code must retain the above copyright notice, this list of | ||
| conditions and the following disclaimer. | ||
| 2. Redistributions in binary form must reproduce the above copyright notice, this list | ||
| of conditions and the following disclaimer in the documentation and/or other materials | ||
| provided with the distribution. | ||
| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY | ||
| EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF | ||
| MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE | ||
| COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | ||
| EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF | ||
| SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) | ||
| HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR | ||
| TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS | ||
| SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | ||
| */ | ||
|
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| L.TileLayer.Kothic = L.TileLayer.Canvas.extend({ | ||
| options: { | ||
| tileSize: 256, | ||
| zoomOffset: 0, | ||
| minZoom: 2, | ||
| maxZoom: 19, | ||
| updateWhenIdle: true, | ||
| unloadInvisibleTiles: true, | ||
| attribution: 'Map data © 2013 <a href="http://osm.org/copyright">OpenStreetMap</a> contributors,' + | ||
| ' Rendering by <a href="http://github.com/kothic/kothic-js">Kothic JS</a>', | ||
| async: true, | ||
| buffered: false, | ||
| styles: MapCSS.availableStyles | ||
| }, | ||
|
|
||
| initialize: function(url,options) { | ||
| L.Util.setOptions(this, options); | ||
|
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| this._url = url; | ||
| this._canvases = {}; | ||
| this._scripts = {}; | ||
| this._debugMessages = []; | ||
|
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| window.onKothicDataResponse = L.Util.bind(this._onKothicDataResponse, this); | ||
| }, | ||
|
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| _onKothicDataResponse: function(data, zoom, x, y) { | ||
| var key = [zoom, x, y].join('/'), | ||
| canvas = this._canvases[key], | ||
| zoomOffset = this.options.zoomOffset, | ||
| layer = this; | ||
|
|
||
| if (!canvas) { | ||
| return; | ||
| } | ||
|
|
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| function onRenderComplete() { | ||
| layer.tileDrawn(canvas); | ||
|
|
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| document.getElementsByTagName('head')[0].removeChild(layer._scripts[key]); | ||
| delete layer._scripts[key]; | ||
| } | ||
|
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| var styles = this.options.styles; | ||
|
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| Kothic.render(canvas, data, zoom + zoomOffset, { | ||
| styles: styles, | ||
| onRenderComplete: onRenderComplete | ||
| }); | ||
|
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| delete this._canvases[key]; | ||
| }, | ||
|
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| getDebugMessages: function() { | ||
| return this._debugMessages; | ||
| }, | ||
|
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||
| drawTile: function(canvas, tilePoint, zoom) { | ||
| var zoomOffset = this.options.zoomOffset, | ||
| key = [(zoom - zoomOffset), tilePoint.x, tilePoint.y].join('/'), | ||
| url=this._url.replace('{x}',tilePoint.x). | ||
| replace('{y}',tilePoint.y). | ||
| replace('{z}',zoom-zoomOffset); | ||
| this._canvases[key] = canvas; | ||
| this._scripts[key] = this._loadScript(url); | ||
| }, | ||
|
|
||
| enableStyle: function(name) { | ||
| // start modified by rurseekatze | ||
| if (this.options.styles.indexOf(name) == -1) { | ||
| // end modified by rurseekatze | ||
| this.options.styles.push(name); | ||
| } | ||
| }, | ||
|
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||
| disableStyle: function(name) { | ||
| if (this.options.styles.indexOf(name) >= 0) { | ||
| var i = this.options.styles.indexOf(name); | ||
| this.options.styles.splice(i, 1); | ||
| } | ||
| }, | ||
|
|
||
| // start modified by rurseekatze | ||
| redraw: function() { | ||
| MapCSS.invalidateCache(); | ||
|
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| this._map.getPanes().tilePane.empty = false; | ||
|
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| if (this._map) { | ||
| this._reset({hard: true}); | ||
| this._update(); | ||
| } | ||
|
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| for (var i in this._tiles) { | ||
| this._redrawTile(this._tiles[i]); | ||
| } | ||
| return this; | ||
| }, | ||
| // end modified by rurseekatze | ||
|
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| _invertYAxe: function(data) { | ||
| var type, coordinates, tileSize = data.granularity, i, j, k, l, feature; | ||
| for (i = 0; i < data.features.length; i++) { | ||
| feature = data.features[i]; | ||
| coordinates = feature.coordinates; | ||
| type = data.features[i].type; | ||
| if (type === 'Point') { | ||
| coordinates[1] = tileSize - coordinates[1]; | ||
| } else if (type === 'MultiPoint' || type === 'LineString') { | ||
| for (j = 0; j < coordinates.length; j++) { | ||
| coordinates[j][1] = tileSize - coordinates[j][1]; | ||
| } | ||
| } else if (type === 'MultiLineString' || type === 'Polygon') { | ||
| for (k = 0; k < coordinates.length; k++) { | ||
| for (j = 0; j < coordinates[k].length; j++) { | ||
| coordinates[k][j][1] = tileSize - coordinates[k][j][1]; | ||
| } | ||
| } | ||
| } else if (type === 'MultiPolygon') { | ||
| for (l = 0; l < coordinates.length; l++) { | ||
| for (k = 0; k < coordinates[l].length; k++) { | ||
| for (j = 0; j < coordinates[l][k].length; j++) { | ||
| coordinates[l][k][j][1] = tileSize - coordinates[l][k][j][1]; | ||
| } | ||
| } | ||
| } | ||
| } else { | ||
| throw "Unexpected GeoJSON type: " + type; | ||
| } | ||
|
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||
| if (feature.hasOwnProperty('reprpoint')) { | ||
| feature.reprpoint[1] = tileSize - feature.reprpoint[1]; | ||
| } | ||
| } | ||
| }, | ||
|
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||
| _loadScript: function(url) { | ||
| var script = document.createElement('script'); | ||
| script.src = url; | ||
| script.charset = 'utf-8'; | ||
| document.getElementsByTagName('head')[0].appendChild(script); | ||
| return script; | ||
| } | ||
| }); |
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