Changeset 305 for osgVisual/trunk/include/util/terrainQuery.h

Timestamp:

Jul 19, 2011, 9:47:13 PM (13 years ago)

Author:

Torben Dannhauer

Message:

 

File:

• osgVisual/trunk/include/util/terrainQuery.h (modified) (6 diffs)

osgVisual/trunk/include/util/terrainQuery.h

@@ -15 +15 @@
 */
 
-#ifndef OSGSIM_HEIGHTABOVETERRAIN
-#define OSGSIM_HEIGHTABOVETERRAIN 1
+#ifndef osgVisual_HEIGHTABOVETERRAIN
+#define osgVisual_HEIGHTABOVETERRAIN 1
 
 #include <osgUtil/IntersectionVisitor>
@@ -23 +23 @@
 #include <osgSim/LineOfSight>
 
-namespace osgSim {
+namespace osgVisual {
 
 /** Helper class for setting up and acquiring height above terrain intersections with terrain.
-  * By default assigns a osgSim::DatabaseCacheReadCallback that enables automatic loading
+  * By default assigns a osgVisual::DatabaseCacheReadCallback that enables automatic loading
   * of external PagedLOD tiles to ensure that the highest level of detail is used in intersections.
   * This automatic loading of tiles is done by the intersection traversal that is done within
@@ -33 +33 @@
   * The external loading of tiles can be disabled by removing the read callback, this is done by
   * calling the setDatabaseCacheReadCallback(DatabaseCacheReadCallback*) method with a value of 0.*/
-class OSGSIM_EXPORT HeightAboveTerrain
+class terrainQuery
 {
     public :
 
+                enum DataSource
+                {
+                        LOADED_SCENE,
+                        PAGE_HIGHEST_LOD
+                        
+                };
     
-        HeightAboveTerrain(bool loadHighestLOD = true);
+        terrainQuery();
         
     
@@ -81 +87 @@
 
         /** Compute the vertical distance between the specified scene graph and a single HAT point. */
-        static double computeHeightAboveTerrain(osg::Node* scene, const osg::Vec3d& point, bool loadHighestLOD = true, osg::Node::NodeMask traversalMask=0xffffffff);
+        static double computeHeightAboveTerrain(osg::Node* scene, const osg::Vec3d& point, DataSource pagingBehaviour, osg::Node::NodeMask traversalMask=0xffffffff);
         
                 /** Compute the vertical position of the scene at a single HOT point. */
-        static double computeHeightOfTerrain(osg::Node* scene, const osg::Vec3d& point, bool loadHighestLOD = true, osg::Node::NodeMask traversalMask=0xffffffff);
+        static double computeHeightOfTerrain(osg::Node* scene, const osg::Vec3d& point, DataSource pagingBehaviour, osg::Node::NodeMask traversalMask=0xffffffff);
 
         
@@ -93 +99 @@
           * Note, if you have multiple LineOfSight or HeightAboveTerrain objects in use at one time then you should share a single
           * DatabaseCacheReadCallback between all of them. */
-        void setDatabaseCacheReadCallback(DatabaseCacheReadCallback* dcrc);
+                void setDatabaseCacheReadCallback(osgSim::DatabaseCacheReadCallback* dcrc);
 
         /** Get the ReadCallback that does the reading of external PagedLOD models, and caching of loaded subgraphs.*/
-        DatabaseCacheReadCallback* getDatabaseCacheReadCallback() { return _dcrc.get(); }
+                osgSim::DatabaseCacheReadCallback* getDatabaseCacheReadCallback() { return _dcrc.get(); }
         
     protected :
@@ -118 +124 @@
         HATList                                 _HATList;
 
-        
-        osg::ref_ptr<DatabaseCacheReadCallback> _dcrc;
+                osg::ref_ptr<osgSim::DatabaseCacheReadCallback> _dcrc;
         osgUtil::IntersectionVisitor            _intersectionVisitor;