planning

node_modules/ol/proj/proj4.js

@@ -0,0 +1,57 @@
+/**
+ * @module ol/proj/proj4
+ */
+import Projection from './Projection.js';
+import Units from './Units.js';
+import { addCoordinateTransforms, addEquivalentProjections, addProjection, createSafeCoordinateTransform, get, } from '../proj.js';
+import { get as getTransform } from './transforms.js';
+/**
+ * Make projections defined in proj4 (with `proj4.defs()`) available in
+ * OpenLayers.
+ *
+ * This function should be called whenever changes are made to the proj4
+ * registry, e.g. after calling `proj4.defs()`. Existing transforms will not be
+ * modified by this function.
+ *
+ * @param {?} proj4 Proj4.
+ * @api
+ */
+export function register(proj4) {
+    var projCodes = Object.keys(proj4.defs);
+    var len = projCodes.length;
+    var i, j;
+    for (i = 0; i < len; ++i) {
+        var code = projCodes[i];
+        if (!get(code)) {
+            var def = proj4.defs(code);
+            var units = def.units;
+            if (!units && def.projName === 'longlat') {
+                units = Units.DEGREES;
+            }
+            addProjection(new Projection({
+                code: code,
+                axisOrientation: def.axis,
+                metersPerUnit: def.to_meter,
+                units: units,
+            }));
+        }
+    }
+    for (i = 0; i < len; ++i) {
+        var code1 = projCodes[i];
+        var proj1 = get(code1);
+        for (j = 0; j < len; ++j) {
+            var code2 = projCodes[j];
+            var proj2 = get(code2);
+            if (!getTransform(code1, code2)) {
+                if (proj4.defs[code1] === proj4.defs[code2]) {
+                    addEquivalentProjections([proj1, proj2]);
+                }
+                else {
+                    var transform = proj4(code1, code2);
+                    addCoordinateTransforms(proj1, proj2, createSafeCoordinateTransform(proj1, proj2, transform.forward), createSafeCoordinateTransform(proj2, proj1, transform.inverse));
+                }
+            }
+        }
+    }
+}
+//# sourceMappingURL=proj4.js.map