Changeset 9124 in josm for trunk/src/org/openstreetmap/josm/data/projection/proj/Proj.java

Timestamp:

2015-12-14T23:18:24+01:00 (8 years ago)

Author:

bastiK

Message:

guess resonable projection bounds, when they haven't been specified (see #12186)

File:

• trunk/src/org/openstreetmap/josm/data/projection/proj/Proj.java (modified) (2 diffs)

trunk/src/org/openstreetmap/josm/data/projection/proj/Proj.java

@@ -2 +2 @@
 package org.openstreetmap.josm.data.projection.proj;
 
+import org.openstreetmap.josm.data.Bounds;
 import org.openstreetmap.josm.data.projection.ProjectionConfigurationException;
 
@@ -64 +65 @@
      */
     double[] invproject(double east, double north);
+
+    /**
+     * Return the bounds where this projection is applicable.
+     * 
+     * This is a fallback for when the projection bounds are not specified
+     * explicitly.
+     * 
+     * In this area, the round trip lat/lon -> east/north -> lat/lon should
+     * return the starting value with small error. In addition, regions with
+     * extreme distortions should be excluded, if possible.
+     * 
+     * It need not be the absolute maximum, but rather an area that is safe to
+     * display in JOSM and contain everything that one would expect to use.
+     * 
+     * @return the bounds where this projection is applicable, null if unknown
+     */
+    Bounds getAlgorithmBounds();
 }