Available in LEADTOOLS Vector Imaging toolkits. |
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; }