Hi,
Thanks for this answer Thomas, you confirm what I guessed also. Before
considering this way, I had a look about attributes and didn't find how I could
create raster texts layer, to display gid or other information. So I wonder if
I should better not carrying on with Postgis for that but t
Hi,
I'm not sure there is a function that can burns geometries on an existing
raster.
So I guess you will need to create a raster for each "layer" you want to
draw (e.g. the polygons, the boundaries...) and merge them into a
final raster using st_mapalgebra.
2017-02-22 21:48 GMT+01:00 Olivier Le
Hi,
I'm trying to do a "screen copy" from a set of polygons. So I thought that I
could use St_AsRaster and St_AsJpeg as follow, with the selection of two
poly.
SELECT ST_AsJPEG(ST_AsRaster(st_collect((Select geom from poly where
gid=605530),(Select geom from poly where gid=605533)),1000,1000,
Hi Saranya,
2017-02-21 10:51 GMT+01:00 Saranya Kuniyil :
> Hai,
> yes. I am interested to retrieve all polygons which intersects any one
> among three categories..
> In the above example,
> 1)POLYGON((0 0,0 1,1 1,1 0,0 0)) filename as part1
> POLYGON((0 0,0 2,2 2,2 0,0 0)) filename as part2
>
