remove rounding in measure (#2002)

* remove rounding in measure

* fix specs

* code cleaner

Author: fuzhenn

src/geo/measurer/Sphere.js

@@ -25,7 +25,7 @@ class Sphere {
             f = toRadian(c1.x) - toRadian(c2.x);
         b = 2 * Math.asin(Math.sqrt(Math.pow(Math.sin(e / 2), 2) + Math.cos(b) * Math.cos(d) * Math.pow(Math.sin(f / 2), 2)));
         b *= this.radius;
-        return Math.round(b * 1E5) / 1E5;
+        return b;
     }
 
     measureArea(coordinates) {

src/layer/tile/tileinfo/TileSystem.js

@@ -47,11 +47,12 @@ class TileSystem {
      * @return {String} tile system code
      */
     static getDefault(projection) {
-        if (projection['code'].toLowerCase() === 'baidu') {
+        const code = projection['code'].toLowerCase();
+        if (code === 'baidu') {
             return 'baidu';
-        } else if (projection['code'].toLowerCase() === 'EPSG:4326'.toLowerCase()) {
+        } else if (code === 'EPSG:4326'.toLowerCase() || code === 'EPSG:4490'.toLowerCase()) {
             return 'tms-global-geodetic';
-        } else if (projection['code'].toLowerCase() === 'identity') {
+        } else if (code === 'identity') {
             return [1, -1, 0, 0];
         } else {
             return 'web-mercator';

test/geometry/LineStringSpec.js

@@ -147,7 +147,7 @@ describe('Geometry.LineString', function () {
             ]);
             polyline.rotate(20);
 
-            var expected =  [[10.796595235860309, 1.8092213764076168], [7.350247889316506, 11.2061475842436], [-33.81727811167417, 76.98463103926437]];
+            var expected =  [[10.796595235854738, 1.80922137642275], [7.350247889302295, 11.206147584281835], [-33.81727811172436, 76.98463103929541]];
             var json = polyline.toGeoJSON().geometry.coordinates;
             expect(json).to.eql(expected);
         });
@@ -160,9 +160,7 @@ describe('Geometry.LineString', function () {
             ]);
             polyline.rotate(20, [0, 0]);
 
-            var expected =  [ [ 0, 0 ],
-            [ -3.435638342187758, 9.396926207835993 ],
-            [ -42.531359521766376, 75.17540966285675 ] ];
+            var expected =  [[0, 0], [-3.4356383421962846, 9.396926207859085], [-42.531359521789, 75.17540966287267]];
             var json = polyline.toGeoJSON().geometry.coordinates;
             console.log(json);
             expect(json).to.eql(expected);

test/geometry/MarkerSpec.js

@@ -843,7 +843,7 @@ describe('Geometry.Marker', function () {
             var marker = new maptalks.Marker(map.getCenter());
             marker.rotate(10, map.getCenter().sub(1, 1));
             var newCoords = marker.getCoordinates().toArray();
-            expect(newCoords).to.be.eql([118.62842615843942, 32.17932019579001]);
+            expect(newCoords).to.be.eql([118.62842615841328, 32.17932019575247]);
         });
     });
 });