i have a shapefile with elevation values as digitized contours, for the same surface, i have well data elevation points for this same surface. is it possible in QGIS to use the contours and well points to create a grid? once i have created grids (actually two surfaces), is there a way to subtract these grids and calculate the volume between these surfaces? is there a tutorial for grid operations such as subtracting one grid from another to calculate volumes and multiply grids together or using constant values thank you
-- Byron Veilleux, MSc. P.Geo Conjugate Geologic Services Limited Calgary, Alberta Canada by...@conjugategeo.com Cell:4037108414
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