//******************************************************************* // // License: See top level LICENSE.txt file. // // Author: Garrett Potts (gpotts@imagelinks) // //************************************************************************* // $Id: ossimGeoPolyCutter.h 22303 2013-07-04 18:15:52Z dburken $ #ifndef ossimGeoPolyCutter_HEADER #define ossimGeoPolyCutter_HEADER 1 #include #include #include #include class ossimImageData; class ossimProjection; /*! * ossimGeoPolyCutter. * * This classes overrides the 2-d counter part ossimPolyCutter. It will automatically * map 2-D to 3-D (ground) polygons if you add 2-D polygons and will automatically * compute the forward transform when adding a ground polygon. * * you can set the view trough the ossimViewInterface by calling setView(object, true); * it will cast to an ossimProjection and use that as the transformation. For igen this is * set automatically and does not need to be set by the user. * * This class has no keywords but does use 2 prefix values to store out the view * and the ground polygon for example if we have only one polygon then here is a sample * keyword list for the polygons: NOTE we can have any number of polygons just increment * the geo_polygon0 to geo_polygon1 .. geo_polygonN for the Nth one * * 
 *
 * geo_polygon0.datum:  WGE
 * geo_polygon0.number_vertices:  18
 * geo_polygon0.type:  ossimGeoPolygon
 * geo_polygon0.v0:  38.023634368488452 -122.542245818545709 nan
 * geo_polygon0.v1:  38.016619667868909 -122.548990722987568 nan
 * geo_polygon0.v2:  38.018238444934966 -122.546292761210807 nan
 * geo_polygon0.v3:  38.012932453440698 -122.547911538276864 nan
 * geo_polygon0.v4:  38.014731094625191 -122.542065954427244 nan
 * geo_polygon0.v5:  38.007446597827986 -122.541796158249582 nan
 * geo_polygon0.v6:  38.009694899308606 -122.537569351466018 nan
 * geo_polygon0.v7:  38.005108364288141 -122.537119691169892 nan
 * geo_polygon0.v8:  38.008255986361007 -122.532353292030976 nan
 * geo_polygon0.v9:  38.003039926925965 -122.531274107320272 nan
 * geo_polygon0.v10:  38.013292181677599 -122.529565398195004 nan
 * geo_polygon0.v11:  38.009874763427050 -122.526867436418243 nan
 * geo_polygon0.v12:  38.019587425823332 -122.528306349365849 nan
 * geo_polygon0.v13:  38.023904164666128 -122.537299555288328 nan
 * geo_polygon0.v14:  38.024983349376825 -122.544584052085540 nan
 * geo_polygon0.v15:  38.023904164666128 -122.548720926809878 nan
 * geo_polygon0.v16:  38.022195455540853 -122.562210735693611 nan
 * geo_polygon0.v17:  38.019317629645663 -122.562930192167400 nan
 *
 *
 * the example for the view information is
 *
 * view.central_meridian:  -123.000000000000000
 * view.datum:  WGE
 * view.decimal_degrees_per_pixel_lat:  0.000089932059225
 * view.decimal_degrees_per_pixel_lon:  0.000089932059225
 * view.ellipse_code:  WE
 * view.ellipse_name:  WGS 84
 * view.false_easting:  0.000000000000000
 * view.false_northing:  0.000000000000000
 * view.major_axis:  6378137.000000000000000
 * view.meters_per_pixel_x:  10.000000000000000
 * view.meters_per_pixel_y:  10.000000000000000
 * view.minor_axis:  6356752.314199999906123
 * view.origin_latitude:  0.000000000000000
 * view.rotation:  0.000000000000000
 * view.scale_x:  1.000000000000000
 * view.scale_y:  1.000000000000000
 * view.tie_point_easting:  0.000000000000000
 * view.tie_point_lat:  0.000000000000000
 * view.tie_point_lon:  -123.000000000000000
 * view.tie_point_northing:  0.000000000000000
 * view.translation_x:  0.000000000000000
 * view.translation_y:  0.000000000000000
 * view.type:  ossimEquDistCylProjection
 *
 *
*/ class OSSIM_DLL ossimGeoPolyCutter : public ossimPolyCutter, public ossimViewInterface { public: ossimGeoPolyCutter(); virtual bool saveState(ossimKeywordlist& kwl, const char* prefix=0)const; /*! * Method to the load (recreate) the state of an object from a keyword * list. Return true if ok or false on error. */ virtual bool loadState(const ossimKeywordlist& kwl, const char* prefix=0); /*! * Sets the polygon to the specified polygon index. * /param polygon A vector of points in projected 2-D. * /param i index of the polygon to change. */ virtual void setPolygon(const vector& polygon, ossim_uint32 i = 0); /*! * Sets the polygon to the specified polygon index. * /param polygon A vector of points in projected 2-D. * /param i index of the polygon to change. */ virtual void setPolygon(const vector& polygon, ossim_uint32 i = 0); /*! * Sets the polygon to the specified polygon index. * /param polygon A Ground polygon. * /param i index of the polygon to change. */ virtual void setPolygon(const vector& polygon, ossim_uint32 i = 0); virtual void setPolygon(const ossimGeoPolygon& polygon, ossim_uint32 i = 0); /*! * Will invert this polygon out to world space and add it to the * polygon list */ virtual void addPolygon(const vector& polygon); /*! * Will invert the passed in polygon to world space and add to the * polygon list */ virtual void addPolygon(const vector& polygon); /*! * Will add the ground polygon to the list */ virtual void addPolygon(const vector& polygon); /*! * Will invert te polygon to ground and add. */ virtual void addPolygon(const ossimPolygon& polygon); /*! * Will add the passed in polygon. */ virtual void addPolygon(const ossimGeoPolygon& polygon); /*! * Will set the number of polygons and will call the base * class set number of polygons. */ virtual void setNumberOfPolygons(ossim_uint32 count); /*! * This should only be used for informational uses only. If updates * are to be made please go through the access methods that change * the polygon data. */ virtual std::vector& getGeoPolygonList(); virtual const std::vector& getGeoPolygonList()const; /*! * Will set the view to the passed in object. Once set it will project the * ground polygon relative to the passed in view. */ virtual bool setView(ossimObject* baseObject); /*! * \return The current view for this object. */ virtual ossimObject* getView(); /*! * \return The constant pointer to the current view for this object. */ virtual const ossimObject* getView()const; protected: virtual ~ossimGeoPolyCutter(); /*! * Utility method used to invert any passed in projected polygons to * be changed or added to the list. * \param polygonNumber the index of the polygon to invert to ground. */ void invertPolygon(int polygonNumber); /*! * Transforms all vertices based on the current m_viewProjection. */ void transformVertices(); /*! * Transforms the specified polygon index. * \param i The polygon index to project. */ void transformVertices(int i); /*! * The view projection used to project the ground coordinates. */ ossimRefPtr m_viewGeometry; std::vector m_geoPolygonList; TYPE_DATA }; #endif /* #ifndef ossimGeoPolyCutter_HEADER */