132 reputation
10
bio website
location
age
visits member for 2 years, 7 months
seen yesterday

Aug
22
awarded  Popular Question
Jul
2
awarded  Curious
Nov
21
comment How to make transparent the background of a topographic map in QGis 1.8.0?
Is there anyway to make this manual process automatically for white and black color (255 and 0). so each time when I insert a new raste image (tif file), it will auto become transparent?
Nov
21
awarded  Commentator
Nov
21
asked Using ST_Affine() and trans_param() functions on vector layer
Oct
30
comment Postgis identify points on the polygon border
Some of my points are not on the vertex of the polygon so the ST_Touches() is not working for those points.
Oct
30
comment Postgis identify points on the polygon border
Yes, I tried to use st_touches but it gives me false when i applied it on the points touching the polygon border.
Oct
30
asked Postgis identify points on the polygon border
Oct
30
comment PostGIS ST_Contains Function Error
I used your new format with "inner join" and I am able to find those lines endpoints is on the boundary of a polygon. Thanks!
Oct
30
accepted PostGIS ST_Contains Function Error
Oct
29
comment PostGIS ST_Contains Function Error
I solved the problem by using select _st_contains(...) instead of select st_contains(...). According to the manual " This function call will automatically include a bounding box comparison that will make use of any indexes that are available on the geometries. To avoid index use, use the function _ST_Contains."
Oct
29
revised PostGIS ST_Contains Function Error
deleted 13 characters in body
Oct
29
asked PostGIS ST_Contains Function Error
Oct
4
comment Yum Install QGIS on CentOS 6
I tried to do a clean installation with qgis,qgis-python but when I load qgis it shows error loading shared libraries: libhdf5.so.6. I can find the file at /usr/lib64/mpich2/lib/libhdf5.so.6
Oct
4
asked Yum Install QGIS on CentOS 6
Jun
1
awarded  Popular Question
Mar
6
awarded  Revival
Mar
6
awarded  Teacher
Mar
6
answered How to install QGIS 1.8 plugin Georeferencer?
Oct
11
awarded  Scholar