L_VecLogicalToPhysical

#include "lvkrn.h"

L_LVKRN_API L_INT L_VecLogicalToPhysical(pVector, pDst, pSrc)

const pVECTORHANDLE pVector;	/* pointer to a vector handle */
POINT *pDst;	/* pointer to a POINT structure */
const pVECTORPOINT pSrc;	/* pointer to a VECTORPOINT structure */

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

Parameter	Description
pVector	Pointer to a vector handle.
pDst	Pointer to a POINT structure to be updated with the physical 2 dimensional point converted from the 3 dimensional vector point in pSrc.
pSrc	Pointer to a VECTRPOINT structure that contains a 3 dimensional point to be converted into a 2 dimensional point.

Returns

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.

Required DLLs and Libraries

LVKRN

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

See Also

Functions:

L_VecPhysicalToLogical, L_VecGetObjectParallelogram, L_VecGetObjectRect

Example

This example will obtain drawing physical extents.

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;
}