[mapserver-users] PPH Mapscript - limit to number of shape objects in a layer?

[Alan Hale]

I've just figured out that this is a PHP memory limit issue - raising 
the limit in php.ini to 128M from the default 32M fixes the problem.

But can anyone suggest a more memory-efficient way of coding the 
addition of square polygons to a dynamic layer?

Many thanks

Alan



Alan Hale wrote:
> Hi Alan
>
> Thanks for the reply. I'm displaying the map image via Overlib and so 
> not getting any error messages- just no image. I know the limit is 
> 11528 just by setting LIMIT on the database query and iterating to the 
> max value. I've been trying to debug the script that generates the 
> image but this is proving more difficult than I thought since various 
> parameters are passed via Overlib so I will have to insert some dummy 
> values.
>
> Hope to get back with more information later.
>
> Regards
>
> Alan
>
> Alan Boudreault wrote:
>> Hi Alan,
>>
>> What's happen when you reach 11528? Is is a PHP error or a mapserver 
>> error ? Could you show us the error?
>>
>> Alan
>>
>> On October 23, 2009 11:30:00 am Alan Hale wrote:
>>  
>>> Hi
>>>
>>> I'm using PHP Mapscript to construct a layer with 2km square polygons
>>> based on coordinates from a database query - thus:
>>>
>>>
>>> $i = 0;
>>> foreach($qresult as $row) {
>>>     $ln[$i] = ms_newLineObj();
>>>
>>>     $X = $row[1];
>>>     $Y = $row[2];
>>>     $ln[$i]->addXY($X-1000,$Y-1000);
>>>     $ln[$i]->addXY($X+1000,$Y-1000);
>>>     $ln[$i]->addXY($X+1000,$Y+1000);
>>>     $ln[$i]->addXY($X-1000,$Y+1000);
>>>     $ln[$i]->addXY($X-1000,$Y-1000);
>>>
>>>     $shp[$i] = ms_newShapeObj(MS_SHAPE_POLYGON);
>>>
>>>     $shp[$i]->add($ln[$i]);
>>>     $shp[$i]->set(index, $row[0]);
>>>
>>>     $layerPoi->addFeature( $shp[$i] );
>>>  $i++;
>>>
>>> This seems to work fine UNTIL the query result reaches more than 11528
>>> rows (this number is exact). Is there a limit? Am I expecting too much
>>>  here?
>>>
>>> Many thanks
>>>
>>> Alan Hale
>>>
>>>
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>>>     
>>
>>   
>
>
>
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