LVectorBase::LogicalToPhysical

#include "ltwrappr.h"

virtual L_INT LVectorBase::LogicalToPhysical(pDst, pSrc)

Converts a 3D VECTORPOINT into a Windows 2D POINT.

Parameters

POINT *pDst

Pointer to a POINT structure to be updated with the physical 2 dimensional point converted from the 3 dimensional vector point in pSrc.

const pVECTORPOINT pSrc

Pointer to a VECTRPOINT structure that contains a 3 dimensional point to be converted into a 2 dimensional point.

Returns

Value Meaning
SUCCESS The function was successful.
< 1 An error occurred. Refer to Return Codes.

Comments

Converts a given logical point in the vector drawing (with X, Y, Z coordinates), into a physical 2D point.

Conversion will be based on the current view port and camera set in the VECTORHANDLE.

Not supported in DirectX.

Required DLLs and Libraries

See Also

Functions

Topics

Example

This example will obtains drawing physical extents.

L_INT LVectorBase__LogicalToPhysicalExample() 
{ 
   L_INT       nRet; 
   VECTORPOINT LeftTop, RightBottom; 
   POINT       LeftTop2D, RightBottom2D; 
   LVectorBase Vector; 
 
   nRet = Vector.Load(MAKE_IMAGE_PATH(TEXT("random.dxf"))); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   // Get drawing logical extents  
   nRet = Vector.GetObjectParallelogram( &LeftTop, &RightBottom ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   // Convert to physical to get the rect where the drawing will be painted  
   nRet = Vector.LogicalToPhysical(&LeftTop2D, &LeftTop ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = Vector.LogicalToPhysical( &RightBottom2D, &RightBottom ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   return SUCCESS; 
} 

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