[postgis-devel] Truly_inside(geometry, geometry)

[Mark Cave-Ayland]

> -----Original Message-----
> From: postgis-devel-bounces at postgis.refractions.net 
> [mailto:postgis-devel-bounces at postgis.refractions.net] On 
> Behalf Of Steve Way
> Sent: 23 February 2006 11:18
> To: PostGIS Development Discussion
> Subject: RE: [postgis-devel] Truly_inside(geometry, geometry)
> 
> Hi all,
> 
> I did re-import the lwpostgis.sql script.
> 
> The issue being, whereas before the truly_inside() function 
> would return a result, th within() function does not.
> 
> This is the last part of my SQL query (quite a complex query).
> 
> If anyone has any examples of how the within() or contains() 
> functions are implemtented, then I would be grateful.
> 
> Kind Regards,
> 
> Steve way


Hi Steve,

Okay. So then in that case can you try and simplify it down to a simple test
case concerning the two geometries involved, e.g.


SELECT truly_inside(geomfromtext('....', -1), geomfromtext('....', -1));

and

SELECT within(geomfromtext('....', -1), geomfromtext('....', -1));


And show us the results of both? If you choose fixed values for all the
parameters in your complex query then by reducing the variables down to
constants you should be able to get them in the form shown above so we can
try and reproduce the problem.


Kind regards,

Mark.

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