L_VecLogicalToPhysical

#include "ltvkrn.h"

L_LVKRN_API L_INT L_VecLogicalToPhysical(pVector, pDst, pSrc)

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

Parameters

const pVECTORHANDLE pVector

Pointer to a vector handle.

L_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

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.

Required DLLs and Libraries

• LTVKRN
• For a listing of the exact DLLs and Libraries needed, based on the toolkit version, refer to Files To Be Included With Your Application.

L_LTVKRNTEX_API L_INT VecLogicalToPhysicalExample( 
   pVECTORHANDLE pVector, 
   RECT* pExtent) 
{ 
   L_INT nRet; 
   VECTORPOINT LeftTop, RightBottom; 
 
   /* Get drawing logical extents */ 
   nRet = L_VecGetObjectParallelogram( pVector, NULL, &LeftTop, &RightBottom, 0L ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Convert to physical to get the rect where the drawing will be painted */ 
   nRet = L_VecLogicalToPhysical( pVector, (POINT *) &pExtent->left, &LeftTop ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   nRet = L_VecLogicalToPhysical( pVector, (POINT *) &pExtent->right, &RightBottom ); 
 
   return nRet; 
}