[postgis-users] Intersections on polyhedral surfaces....

[Stephen Mather]

Never mind, I used CREATE EXTENSION... , instead of e.g. this:

createdb test_sfcgal -p 5433
createlang plpgsql test_sfcgal -p 5433
psql -d test_sfcgal -p 5433 -f postgis.sql
psql -d test_sfcgal -p 5433 -f spatial_ref_sys.sql
psql -d test_sfcgal -p 5433 -f sfcgal.sql

ala:
http://osgeo-org.1560.x6.nabble.com/SFCGAL-trouble-installing-td5083390.html

Forgot that when I dropped and recreated the database... .
It's still not in the docs.  I'll add this to my list of things to
ticket, if someone doesn't beat me to it... .

Best,
Steve



On Thu, Dec 12, 2013 at 10:51 PM, Stephen Mather
<stephen at smathermather.com> wrote:
> The docs don't have ST_3DIntersection, just ST_3DIntersects:
>
> http://postgis.net/docs/manual-2.1/reference.html#Geometry_Constructors
> http://postgis.net/docs/manual-dev/reference.html#Geometry_Constructors
>
> And, my 2.1.2 Ubuntu build (with SFCGAL) doesn't have the function.
> Would I have it if I did a nightly?
>
> Best,
> Steve
>
>
>
>
> On Thu, Dec 12, 2013 at 3:20 AM, Oliver Courtin
> <olivier.courtin at oslandia.com> wrote:
>>
>> Le 12 déc. 2013 à 08:42, Rémi Cura a écrit :
>>
>> waht would you mean by intersection in 3D space?
>> volumetric intersection, or 2D intersection of colinear geometries?
>>
>>
>> Both ST_3DIntersects and ST_3DIntersection  (with SFCGAL support)
>> can handle 3D space volumetric intersection.
>>
>> O.
>>
>>
>>
>>
>>
>>
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