The function returns the geometry normals in the range of nStart..nEnd.
Declaration:
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AT_ERRCOUNT ACCUAPI IG_vect_geom_get_normals(
HIG_VECT_ENTITY hEntity,
VECT_REAL* lpNormals,
long nStart,
long nEnd
);
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Arguments:
| Name | Type | Description |
| hEntity | HIG_VECT_ENTITY | Geometry entity handle. |
| lpNormals | VECT_REAL* | Buffer for the geometry normals. |
| nStart | long | Start index of the normal. |
| nEnd | long | End index of the normal. |
Return Value:
Returns 0 if successful. Otherwise, returns the number of ImageGear errors that occurred during this function call.
Supported Raster Image Formats:
This function does not process image pixels.
Sample:
None
Remarks:
Using this function makes sense only if argument bUseNormals of IG_vect_geom_init() was set to VECT_TRUE.
The normal buffer must be long enough to receive (nEnd - nStart + 1) * 3 floating point values.