diff options
author | Chris Schlaeger <chris@linux.com> | 2015-10-17 21:36:38 +0200 |
---|---|---|
committer | Chris Schlaeger <chris@linux.com> | 2015-10-17 21:36:38 +0200 |
commit | e30f267181d990947e67909de4809fa941698c85 (patch) | |
tree | 46e9f94c2b3699ed378963b420b8a8d361286ea1 /misc/openlayers/examples/simplify-linestring.js | |
parent | e763ceb183f389fcd314a4a6a712d87c9d4cdb32 (diff) | |
download | postrunner-e30f267181d990947e67909de4809fa941698c85.zip |
Upgrading openlayers to 3.x
Diffstat (limited to 'misc/openlayers/examples/simplify-linestring.js')
-rw-r--r-- | misc/openlayers/examples/simplify-linestring.js | 599 |
1 files changed, 0 insertions, 599 deletions
diff --git a/misc/openlayers/examples/simplify-linestring.js b/misc/openlayers/examples/simplify-linestring.js deleted file mode 100644 index 3f4c6f6..0000000 --- a/misc/openlayers/examples/simplify-linestring.js +++ /dev/null @@ -1,599 +0,0 @@ -// global variables -var map, map2; - -// wrap the instanciation code in an anonymous function that gets executed -// immedeately -(function(){ - // style the vectorlayer - var styleMap = new OpenLayers.StyleMap({ - 'default': new OpenLayers.Style({ - strokeColor: "#333333", - strokeWidth: 1.2, - strokeOpacity: 1 - }) - }); - - // the vectorlayer - var vectorlayer = new OpenLayers.Layer.Vector('Vectorlayer', { - isBaseLayer: true, - styleMap: styleMap - }); - - var original = OpenLayers.Geometry.fromWKT("LINESTRING(" + - "6.247872 11.316756," + - "6.338566 11.316756," + - "6.633323 11.205644," + - "6.724018 11.205644," + - "6.792039 11.205644," + - "7.154817 11.372311," + - "7.313532 11.400089," + - "7.381553 11.344533," + - "7.336206 11.288978," + - 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"0.097914 10.761511," + - "0.076256 10.811522," + - "0.061935 10.867833," + - "0.000000 10.960167)" - ); - vectorlayer.addFeatures([new OpenLayers.Feature.Vector(original)]); - var maxExtent = vectorlayer.getDataExtent(); - // instanciate the map - map = new OpenLayers.Map("map", { - fractionalZoom: true, - maxExtent: maxExtent, - layers: [vectorlayer] - }); - map.zoomToMaxExtent(); - map.events.register('moveend', map, function(){ - map2.setCenter(map.getCenter(), map.getZoom()); - }); - - - var vectorlayer2 = new OpenLayers.Layer.Vector('Vectorlayer simplified', { - isBaseLayer: true, - styleMap: styleMap - }); - - map2 = new OpenLayers.Map("map-simplify", { - fractionalZoom: true, - maxExtent: maxExtent, - controls: [], - layers: [vectorlayer2] - }); - map2.zoomToExtent(maxExtent); - - // Control behaviour - var lastValue = 0.1; - var simplify = function() { - var min = 0; - var max = 1; - var givenVal= parseFloat(document.getElementById('tolerance').value); - var useVal = lastValue; - if (!isNaN(givenVal)) { - if (givenVal >= min && givenVal <= max) { - useVal = givenVal; - } else { - useVal = (givenVal < min) ? min : max; - } - } - document.getElementById('tolerance').value = useVal; - vectorlayer2.removeFeatures(vectorlayer2.features); - var newLineString = original.simplify(useVal); - vectorlayer2.addFeatures([new OpenLayers.Feature.Vector(newLineString)]); - var originalVerticesCnt = original.getVertices().length; - var simplifiedVerticesCnt = newLineString.getVertices().length; - var infotxt = '<ul><li>Original LineString: <strong>'; - infotxt += originalVerticesCnt + ' vertices</strong></li>'; - infotxt += ' <li>Simplified geometry: <strong>' + simplifiedVerticesCnt + ' vertices</strong></li>'; - infotxt += ' <li>Decreased by <strong>' + (((originalVerticesCnt-simplifiedVerticesCnt)/originalVerticesCnt)*100).toFixed(2) + ' per cent</strong></li></ul>'; - document.getElementById('info').innerHTML = infotxt; - lastValue = useVal; - }; - document.getElementById('tolerance').value = lastValue; - document.getElementById('simplify').onclick = simplify; - simplify(); - - var animationInterval; - var animationHandler = function(){ - if (this.value === 'Start animation') { - document.getElementById('simplify').disabled = true; - document.getElementById('animation').value = "Stop animation"; - animationInterval = window.setInterval(function(){ - var tolerance = parseFloat(document.getElementById('tolerance').value); - if (tolerance < 1) { - tolerance+=0.02; - } else { - tolerance = 0.02; - } - document.getElementById('tolerance').value = tolerance.toFixed(2); - simplify(); - }, 500); - simplify(); - } else { - if (animationInterval) { - window.clearInterval(animationInterval); - } - document.getElementById('simplify').disabled = false; - document.getElementById('animation').value = "Start animation"; - } - }; - document.getElementById('animation').onclick = animationHandler; -})(); |