The GDAL command to build a VRT (Virtual Dataset).

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How do I set nodata with custom color for gdal_translate and gdal2tilespy?

I start with a bunch of 1-bit geotiff files that I had to convert to 8-bit RGB tiff files to use with GDAL. Then I tried to set borders to red (content is in black and white so I can't use those) and ...
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can I preserve a fading alpha layer when mosaicing images with gdal?

I am mosaicing some images with gdal and would like to improve the final result by using a fading / gradual alpha layer towards the edge of each image to remove the sharp edges in the middle of the ...
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Importing multiple GeoTiffs in TileMill

I am a software engineer that is very new in the geo world. So excuse my ignorance if this question seems simple or if terms I use are totally wrong. Problem: I have been tasked with taking multiple ...
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70 views

How to prevent transparent borders (collars) of a tif wipe out overlapping regions of adjecent tif while using gdalbuildvrt

I have a set of Geotifs that have got transparent borders (collars) of irregular shapes & dimensions around them. First I created a VRT over this set of Geotifs through gdalbuildvrt. Then I ...
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Problem defining the tiling starting point

We are tiling a image datasets. However, we want to specifically define custom windows. To do this, we are using -te option during warping. The warped output is then tiled. The problem though is that ...
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310 views

How do I load offline google map/earth vrt files as a backdrop in qgis

I was trying to follow the process : saving-google-earth-location in order to cache google maps/earth offline for digitizing, but I am fairly new to qgis. When I try to add the vrt file as a raster ...
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`gdalbuildvrt` and selecting individual bands

I want to produce a set of VRTs (GDAL's internal virtual rasters) that comprise a re-arrangement of bands of a number of individual GeoTIFF files. Say I have my initial set of GeTIFF files, all having ...
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How to build .vrt of shapefiles?

I've a huge number of shapefiles and I would like to create a VRT as I do with gdalbuilvrt for raster. I find here https://github.com/dwtkns/gdal-cheat-sheet that it should be possible and the format ...
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gdal_merge tries to create image with negative dimensions

I am trying to use gdal_merge.py to create a mosaic from a set of geotiffs, however the command fails with the error message: "ERROR 1: Attempt to create -3510x1817 dataset is illegal,sizes must be ...
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gdalbuildvrt not working with star in path on windows

In my directory C:\dev\Jpeg-geo\del1 I have a set of .jpg and .jgw files that I am trying to put together with gdalbuildvrt but its giving me a weird error. ...
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VRT vs KML superoverlay

We've got GB's of raster data that I want to make available as mosaics with overviews internally within my office. We have people using ArcGIS (although we are never all at the same version) and we ...