Rasters are regular grids of values, usually stored in an image-like format.
1
vote
2answers
835 views
Merge single band and multi band color images
I do have 2 color images (orthophotomaps). One is only 1-band with color map and second is with 3-bands.
How can I merge them with any FOSS tools or ArcGIS?
Thanks a million
1
vote
2answers
404 views
How to import .flt files into GRASS?
I am trying to import a raster file (.flt) into GRASS. The raster file (.flt) was generated from HEC-RAS. The said raster format cannot be imported into GRASS (it shows the error "file not ...
1
vote
1answer
705 views
How to select a raster file that is under a polygon in a vector file?
I am using:
v.db.select map=PHL_adm1 where=NAME_1='Bulacan'
My vector map is over the raster map. I want to select the part of the raster map under the polygon(NAME_1='Bulacan') of a vector. Is it ...
1
vote
1answer
1k views
How to combine a vector and a raster file?
I want to combine a raster and a vector file. After combining, can I query on the resulting map to obtain a specific area? How?
0
votes
0answers
27 views
Raster attribute field error [duplicate]
I am trying to add jpegs to a raster data type attribute field. I want to this field to be managed by the file geodatabase. When I load the photos and try to save my edits it get various errors but ...
0
votes
0answers
17 views
Can I apply the Euclidean Distance tool for a single point feature class? [duplicate]
So, as suggested in my previous question, I tried to perform perform the Euclidean Distance tool for a single point feature class. For som e reason it doesn't work and the error given is ERROR010092: ...
0
votes
0answers
35 views
I need advice in using QGIS Lisboa 1.8 (vol 2) [duplicate]
Possible Duplicate:
I need a advice in using QGIS lisboa 1.8(vol 3)
My previous question was not clear, so again my question is:
In an urban area with polygon and dots, how could I display ...
0
votes
0answers
331 views
How to add ECW support to GDAL bundled with PostGIS Windows
I'm currently trying the new raster functionalities of PostGIS 2.0 and I successfully imported some GeoTIFF file into PostGIS (although it only find one band so it's all black and white for some ...
0
votes
1answer
708 views