Catching error of getShape - php_mapscript

[Julien-Samuel Lacroix]

Hi,

With Mapscript there's the errorObj object that can do exactly what you 
want I think. There's an example of how to use it in the doc.

http://mapserver.gis.umn.edu/doc44/phpmapscript-class-guide.html#errorobj

Julien

On 06/16/2005 03:04 AM, Jacob Delfos wrote:
> Hi all,
> 
> Can anyone tell me if there is a way to catch the error that getShape 
> throws if you request a shape that is out of range?
> 
> Reason is I'm trying to iterate through a layer. At this stage, I need 
> to use an object count to make the loop stop. Getting an object count 
> either requires me to use the shpfileobj->numshapes variable (which 
> obviously only works on shapefiles), or doing a query (which would only 
> work on layers with templates, which would need a reprojected rectangle, 
> uses overhead, etc….).
> 
> Would it be possible to make getShape return MS_FAILURE if the object is 
> out of range, or throw a warning that can be caught using '@' error 
> suppression? That way one could iterate through a whole layer without 
> needing a layer count.
> 
> Regards,
> 
> Jacob
> 
>  
> 
> * *
> 
> *JACOB DELFOS
> SPATIAL INFORMATION ANALYST
> *Maunsell Australia Pty Ltd
> 629 Newcastle Street, Leederville, WA 6007
> 
> PO Box 81, Leederville, WA 6902
> 
> Western Australia
> 
> ABN 20 093 846 925
> 
> Tel     + 61 8 9281 6185
> Fax    + 61 8 9281 6297
> _jacob.delfos at maunsell.com_
> 

-- 
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Julien-Samuel Lacroix            jlacroix at dmsolutions.ca
DM Solutions Group               http://www.dmsolutions.ca/
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