LVectorRaster::LVectorRaster

#include "ltwrappr.h"

LVectorRaster::LVectorRaster(pRaster = NULL)

LVectorRaster::LVectorRaster(pObject, pVector =NULL)

Constructs and initializes the different member variables of the LVectorRaster object.

Parameters

pVECTORRASTER pRaster

Pointer to a VECTORRASTER structure that contains information used to create and initialize the new vector raster object.

pVECTOROBJECT pObject

Pointer to a VECTOROBJECT structure that contains information used to create and initialize the new vector raster object.

LVectorBase *pVector

Pointer to an LVectorBase object with which the newly constructed vector raster object will be associated.

Returns

None

Comments

LVectorRaster::LVectorRaster(pRaster) is a constructor for the LVectorRaster object. It takes a valid pVECTORRASTERpointer and creates an LVectorRaster object.

LVectorRaster::LVectorRaster(pObject, pVector=NULL) creates an LVectorRaster object based on the information provided in pObject and associates the newly created LVectorRaster object with the specified LVectorBase object. This constructor can be used with the LVectorLayer::EnumObjects function, which returns a valid pVECTOROBJECT pointer in the LVectorLayer::EnumObjectsCallBack member function. It can also be used with LVectorBase::VectorEventProcCallBack, which can also return a pObject.

Note that it is possible to construct an invalid LVectorRaster object using the LVectorRaster::LVectorRaster(pObject, pVector=NULL) constructor. For example:

   //pObject->nType == type other than VECTOR_RASTER   
   //LVectorBase *pVector is valid   
   LVectorRaster MyVectorRaster(pObject, pVectorBase);   
   if (MyVectorRaster.IsTypeValid() == FALSE)   
      MessageBox(NULL, TEXT("Invalid Vector Object"), TEXT(""), MB_OK); 

Required DLLs and Libraries

See Also

Functions

Example

For an example for LVectorRaster::LVectorRaster(pRaster), refer to LVectorRaster::LockObject.
For an example for LVectorRaster::LVectorRaster(pObject, pVector=NULL), refer to LVectorArc::LVectorArc(pObject, pVector = NULL).

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