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externalize scaleGesture

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This commit is contained in:
JS 2023-10-28 17:35:06 +02:00
parent 0317b20f3a
commit 238b35288f
2 changed files with 28 additions and 31 deletions
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31
WMS-choose.htm
View file

@ -35,26 +35,9 @@
</div>
<div id='map'></div>
<script scr="scaleGesture.js"></script>
<script>
const mLittleton = L.marker([39.61, -105.02]).bindPopup('This is Littleton, CO.');
const mDenver = L.marker([39.74, -104.99]).bindPopup('This is Denver, CO.');
const mAurora = L.marker([39.73, -104.8]).bindPopup('This is Aurora, CO.');
const mGolden = L.marker([39.77, -105.23]).bindPopup('This is Golden, CO.');
const crownHill = L.marker([39.75, -105.09]).bindPopup('This is Crown Hill Park.');
const rubyHill = L.marker([39.68, -105.00]).bindPopup('This is Ruby Hill Park.');
const cities = L.layerGroup([
mLittleton,
mDenver,
mAurora,
mGolden
]);
const parks = L.layerGroup([
crownHill,
rubyHill
]);
const osm = L.tileLayer('https://tile.openstreetmap.org/{z}/{x}/{y}.png', {
maxZoom: 19,
attribution: '&copy; <a href="http://www.openstreetmap.org/copyright">OpenStreetMap</a>'
@ -87,9 +70,7 @@
};
const overlays = {
'Cities': cities,
'IGNOrtho': IGNOrtho,
'Parks': parks
};
const map = L.map('map', {
@ -109,16 +90,6 @@
output.innerHTML = this.value;
IGNOrtho.setOpacity(this.value/100);
}
// gestion de l'échelle
L.control.scale().addTo(map);
//var y = map.getSize().y / 2;
const widthInMeter = 6378137 * 2 * Math.PI * Math.cos(map.getCenter().lat * Math.PI / 180);
var scaleOutput = document.getElementById("scaleOutput");
scaleOutput.innerHTML = widthInMeter;
map.on('moveend', function(){
scaleOutput.innerHTML = widthInMeter;
});
</script>
</body>
</html>

26
scaleGesture.js Normal file
View file

@ -0,0 +1,26 @@
L.control.scale().addTo(map);
function pixelsInOneMeterWidth() {
var div = document.createElement('div');
div.id="mesure";
div.style.cssText = 'position: absolute; left: -100%; top: -100%; width: 100cm';
document.body.appendChild(div);
var px = div.offsetWidth;
document.body.removeChild(div);
return px;
}
function scaleManage(){
var pos = map.getCenter();
var screenWidth = screen.width;
var wFrameInPx = document.getElementById("map").clientWidth;
var mapSpan = map.containerPointToLatLng([0, 0]).distanceTo(map.containerPointToLatLng([0, wFrameInPx]));
var frameInMeter = wFrameInPx/pixelsInOneMeterWidth();
return [pos,screenWidth,wFrameInPx,mapSpan, pixelsInOneMeterWidth(), frameInMeter, mapSpan/frameInMeter];
}
const widthInMeter = 6378137 * 2 * Math.PI * Math.cos(map.getCenter().lat * Math.PI / 180);
var scaleOutput = document.getElementById("scaleOutput");
scaleOutput.innerHTML = widthInMeter;
map.on('moveend', function(){
scaleOutput.innerHTML = widthInMeter;
});