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L_VecSetCamera

Summary

Sets the new camera settings.

Syntax

#include "ltvkrn.h"

L_LVKRN_API L_INT L_VecSetCamera(pVector, pCamera)

Parameters

pVECTORHANDLE pVector

Pointer to a vector handle.

const pVECTORCAMERA pCamera

Pointer to a VECTORCAMERA structure that contains the new camera settings. If this is NULL, the default camera settings will be used.

Returns

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

Comments

This function will set the current viewing camera.

The camera is used with the view port to determine how the drawing will be projected into the destination DC when using L_VecPaint.

If pCamera is NULL, the default camera will be set. The default camera is defined as a top view camera .

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 will set new camera settings.

L_LTVKRNTEX_API L_INT VecSetCameraExample(pVECTORHANDLE pVector) 
{ 
   L_INT nRet; 
   VECTORCAMERA   camera;     /* Camera */ 
 
   /* Set rotation around the Z-axis to 30 degrees */ 
   camera.Theta = 30.0; 
 
   /* Set rotation off the Z-Axis to 60 degrees */ 
   camera.Phi = 20.0; 
 
   /* Use perspective projection */ 
   camera.bPerspective = TRUE; 
 
   /* Set camera position 200 units from the object */ 
   camera.Distance = 200.0; 
 
   /* Set the new camera settings */ 
   nRet = L_VecSetCamera( pVector, &camera ); 
 
   return nRet; 
}