26 lines
No EOL
1 KiB
JavaScript
26 lines
No EOL
1 KiB
JavaScript
L.control.scale().addTo(map);
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function pixelsInOneMeterWidth() {
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var div = document.createElement('div');
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div.id="mesure";
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div.style.cssText = 'position: absolute; left: -100%; top: -100%; width: 100cm';
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document.body.appendChild(div);
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var px = div.offsetWidth;
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document.body.removeChild(div);
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return px;
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}
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function scaleManage(){
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var pos = map.getCenter();
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var screenWidth = screen.width;
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var wFrameInPx = document.getElementById("map").clientWidth;
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var mapSpan = map.containerPointToLatLng([0, 0]).distanceTo(map.containerPointToLatLng([0, wFrameInPx]));
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var frameInMeter = wFrameInPx/pixelsInOneMeterWidth();
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return [pos,screenWidth,wFrameInPx,mapSpan, pixelsInOneMeterWidth(), frameInMeter, mapSpan/frameInMeter];
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}
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const widthInMeter = 6378137 * 2 * Math.PI * Math.cos(map.getCenter().lat * Math.PI / 180);
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var scaleOutput = document.getElementById("scaleOutput");
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scaleOutput.innerHTML = widthInMeter;
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map.on('moveend', function(){
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scaleOutput.innerHTML = widthInMeter;
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}); |