When installing the plugin qgis2web through the plugin manager on the qgis 2.99 nightly release I get the following error message. Does anyone know what I need to do to get it working. I’ve not seen an obvious corresponding issue on the github repo. Couldn’t load plugin ‘qgis2web’ due to an error when calling its… Read More »
What I need is to unite intersecting polygons in a single geometry and leave others without change. I am able to do this using the following query, which unites all of the polygons into a single geometry and then dumps it to the separate ones. INSERT INTO unioned(geom) SELECT ST_MULTI((ST_Dump(ST_Union(geom))).geom) from footprints; The problem is… Read More »
I have a line in the center of a road, with the roads elevation attached to its propertiers. I would like to raise this line, create a buffer around it and see what the spread would be in a flooding situation. I know I can use IDW to get the buffer, but is is possible… Read More »
I have two polygon-shapefiles representing similar data. However, the features in these layers are not always 100 % identical. So, a feature in shapefile 1 may be present in shapefile 2, but the form of the polygon is not exactly the same (vertices missing or different). Also, shapefile 1 contains features which are not present… Read More »
I’m having a hard time getting my head around the maths to locate a target in 3D given a number of known points (4 or more) and a value that indicates the signal strength (range 0–100). I’ve looked at the simpler answer in the 2D case but I’m unsure how to generalise the idea of… Read More »
I have a problem with raster aligning. Given: Two rasters that need to be aligned. Rasters a little bit shifted, scaled and rotated. Two arrays of matched keypoints. Transformation is wrong, so usual methods don’t work. My code: with rasterio.open(‘non_aligned_imagery/121817_Sq_GH3_index_ndvi.tif’) as src: # checkout array data = src.read() reshaped = data rows, cols = reshaped.shape… Read More »
I am trying to define the fate of pollutants from point sources in to the environment at a regional scale. The cost distance, path anlaysis or corridor toolsmight be usfeul. Does anyone has ideas or has done the same type of analysis ?
I do’nt find the option to include the DEM and RPC files in Orfeo (Geometry tool). Please, review the attachment.
My aim is to determine the extent of what would be an urban bioregion (think of it as the extent of a city), given the following criteria: the extent of an urban bioregion is reached when 30% of its area is covered by impervious surfaces. In short, I want to determine new limits to a… Read More »