Tagged Questions
1
vote
1answer
42 views
Scanned Transparent Map Overlay
We have a flat file of 50 Geology maps that have a transparent overlay with faults and drill holes. I have them scanned and georeferenced as TIF images and they will be used in ArcGIS 10.0, 10.1 and ...
6
votes
3answers
325 views
How to make transparent the background of a topographic map in QGis 1.8.0?
I'm starting to use QGis 1.8.0. I have a raster topographic map, i.e. white background and black contour lines, houses, roads and so on. I want to make transparent the white background, so if I ...
1
vote
2answers
186 views
How to surround a clipped raster with transparency? (gdalwarp)
I am trying to perform the following task, but it does not seem to work:
I have got a raster file (raster.tif) containing an aerial photo, which I want to clip using a Shape file (clip.shp) that ...
1
vote
1answer
115 views
Why is transparancy of GRASS rasters missing when imported into QGIS?
I have a raster map in QGIS imported from a GRASS mapset with the QGIS GRASS plugin. The problem is that I have null() cells in the GRASS map that appear "colored" in QGIS. How can I set the ...
1
vote
2answers
434 views
QGis problem with raster transparent
I am new to QGIS. I found the problem impossible to solve the parts of raster data that are in TIFF format should be made transparent. What do I do?
