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L_VecApplyTransformation

Summary

Applies the current transformation to the vector image. This function is available in the LEADTOOLS Vector Imaging Toolkit.

Syntax

#include "ltvkrn.h"

L_LVKRN_API L_INT L_VecApplyTransformation( pVector)

Parameters

pVECTORHANDLE pVector

Pointer to a vector handle referencing an image drawing.

Returns

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

Comments

This function will apply the current transformation (Rotation, scaling and translation) to the vector image. The vector image objects will be changed.

After a call to this function, rotation, scaling and translation values will be reset.

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.

Example

This example loads a vector drawing, applies some transformation then saves it back.

L_INT VecApplyTransformationExample(L_TCHAR* pszFile, L_TCHAR* pszTargetFile) 
{ 
   L_INT nRet; 
   VECTORHANDLE TmpVector;     /* Vector handle for initial loading */ 
   VECTORPOINT point; 
 
   /* Load the drawing */ 
   nRet = L_VecLoadFile( pszFile, &TmpVector, NULL, NULL ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Rotate 30 degrees along the 3 axes */ 
   point.x = 30.0; 
   point.y = 30.0; 
   point.z = 30.0; 
   nRet = L_VecSetRotation( &TmpVector, &point, NULL, NULL, 0L ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Scale to 200% */ 
   point.x = 2.0; 
   point.y = 2.0; 
   point.z = 2.0; 
   nRet = L_VecSetScale( &TmpVector, &point, NULL, NULL, 0L ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Translate 5 units along each axis */ 
   point.x = 5.0; 
   point.y = 5.0; 
   point.z = 5.0; 
   nRet = L_VecSetTranslation( &TmpVector, &point, NULL, 0L ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Apply the transformation to the image */ 
   nRet = L_VecApplyTransformation( &TmpVector ); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Save it */ 
   nRet = L_VecSaveFile(pszTargetFile, &TmpVector, FILE_DXF, NULL); 
   if(nRet != SUCCESS) 
      return nRet; 
 
   /* Free the vector */ 
   nRet = L_VecFree( &TmpVector ); 
 
   return nRet; 
}