I'm trying to construct viewsheds around a series of shapefile points. I have the points, and the DEM, and have installed the 'Viewshed Analysis' plugin.
When I ran the plugin with the 'cumulative (for raster)' box ticked, the result was an undifferentiated, black rectangular raster. I have tried changing the max value, but nothing changes in the raster image.
With the 'cumulative' box unticked, the task never completed and I had to force quit the program.
Apologies if I'm missing something obvious, but I haven't found any guidance for the plugin online, and the two related questions linked below didn't provide an answer.
How to perform Visibility Analysis using QGIS?
Visual Impact Assessment in QGIS or GRASS
أكثر...
When I ran the plugin with the 'cumulative (for raster)' box ticked, the result was an undifferentiated, black rectangular raster. I have tried changing the max value, but nothing changes in the raster image.
With the 'cumulative' box unticked, the task never completed and I had to force quit the program.
Apologies if I'm missing something obvious, but I haven't found any guidance for the plugin online, and the two related questions linked below didn't provide an answer.
How to perform Visibility Analysis using QGIS?
Visual Impact Assessment in QGIS or GRASS
أكثر...