[gdal-dev] How to get the size of a OGRGeometry

[Frank Warmerdam]

Jorge Arévalo wrote:
> Hello,
> 
> If I have an OGRGeometry object (said poGeom), I can get its coords by:
> 
> OGREnvelope * poE = new OGREnvelope();
> poGeom->getEnvelope(poE);
> 
> // poE->MinX, poE->MinY, poE->MaxX, poE->MaxY are the limit coords
> 
> If I want the size of the Geometry:
> 
> double dSizeX = poE->MaxX - poE->MinX;
> double dSizeY = poE->MaxY - poE->MinY;
> 
> Is it the correct way?

Jorge,

This is appropriate for finding the width and height of the
bounding box.  Is that what you mean when you say "size"?   Size
is not a well defined term all on it's own.

Best regards,
-- 
---------------------------------------+--------------------------------------
I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
light and sound - activate the windows | http://pobox.com/~warmerdam
and watch the world go round - Rush    | Geospatial Programmer for Rent