[Gdal-dev] Introducing myself and obtaining MBR geometry for TAB files

[Frank Warmerdam]

Ben Crane wrote:
> Hello all,
> 
> Just subscribed to this list after using PHP_PGR
> within Mapserver. What a great library that is! Of
> course I do have a question or two:
> 
> Question 1: I am reading MapInfo TAB files. So far so
> good, I can read the geometry and create SVG files
> from it. One thing I cannot do is get the MBR (Minimum
> Bounding Rectangle) of the data. I need to know what
> geometry frames the data so I can use it within SVG as
> part of the viewbox command. Does anyone know of the
> PHP class/function that can pick up how much "space"
> (ie, min x,y - max x,y of the dataset) the TAB vector
> data actually takes up?

Ben,

The OGRLayer class has a GetExtent() method.  I'm not certain
if that is exposed in the PHP bindings or not.

Best regards,
-- 
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I set the clouds in motion - turn up   | Frank Warmerdam, warmerdam at pobox.com
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