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Update the measure example

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This commit is contained in:
Tim Schaub
2017-08-10 20:20:47 -06:00
parent f3ebbf4b7c
commit a58f162ed9
2 changed files with 16 additions and 37 deletions
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29
examples/measure.js
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@@ -8,7 +8,6 @@ goog.require('ol.geom.Polygon');
goog.require('ol.interaction.Draw');
goog.require('ol.layer.Tile');
goog.require('ol.layer.Vector');
goog.require('ol.proj');
goog.require('ol.source.OSM');
goog.require('ol.source.Vector');
goog.require('ol.style.Circle');
@@ -17,8 +16,6 @@ goog.require('ol.style.Stroke');
goog.require('ol.style.Style');
var wgs84Sphere = new ol.Sphere(6378137);
var raster = new ol.layer.Tile({
source: new ol.source.OSM()
});
@@ -137,7 +134,6 @@ map.getViewport().addEventListener('mouseout', function() {
});
var typeSelect = document.getElementById('type');
var geodesicCheckbox = document.getElementById('geodesic');
var draw; // global so we can remove it later
@@ -148,19 +144,7 @@ var draw; // global so we can remove it later
* @return {string} The formatted length.
*/
var formatLength = function(line) {
var length;
if (geodesicCheckbox.checked) {
var coordinates = line.getCoordinates();
length = 0;
var sourceProj = map.getView().getProjection();
for (var i = 0, ii = coordinates.length - 1; i < ii; ++i) {
var c1 = ol.proj.transform(coordinates[i], sourceProj, 'EPSG:4326');
var c2 = ol.proj.transform(coordinates[i + 1], sourceProj, 'EPSG:4326');
length += wgs84Sphere.haversineDistance(c1, c2);
}
} else {
length = Math.round(line.getLength() * 100) / 100;
}
var length = ol.Sphere.getLength(line);
var output;
if (length > 100) {
output = (Math.round(length / 1000 * 100) / 100) +
@@ -179,16 +163,7 @@ var formatLength = function(line) {
* @return {string} Formatted area.
*/
var formatArea = function(polygon) {
var area;
if (geodesicCheckbox.checked) {
var sourceProj = map.getView().getProjection();
var geom = /** @type {ol.geom.Polygon} */(polygon.clone().transform(
sourceProj, 'EPSG:4326'));
var coordinates = geom.getLinearRing(0).getCoordinates();
area = Math.abs(wgs84Sphere.geodesicArea(coordinates));
} else {
area = polygon.getArea();
}
var area = ol.Sphere.getArea(polygon);
var output;
if (area > 10000) {
output = (Math.round(area / 1000000 * 100) / 100) +