I would like to create vector points for each pixel of a raster that is located in polygon, using a Virtual layer.
Details :
I have 2 layers:
- P : vectors layer of polygons
- R : raster with value in band 1
I want to create a new vector layers of points in which every pixel of raster is used to generate a point. This operation has to be done only inside (boudaries included) of polygons geometry. The new vector point should contain fields:
- P : ID of the polygon in which the point is
- R : value of the band 1 of the pixel used to generate the point
Information:
This process is not the final aim. In fact, my final aim is to make zonal statistic from pixels raster inside polygon as described there : Virtual layer zonal statistic of raster using polygons in QGIS Because I do not find anyway to do this directly I try to devide my process into steps. I imagine this workflow:
- generate points from pixels in a virtual layer with value band 1
- make zonal statistic into with virtual layer of the points (vector) into polygons (vector) feel free to suggest improvement of this workflow.
