I have three points (boreholes) on the map. I created them using shape file layer. Each borehole shape file layer shows the strati-graphic section of the ground. (i.e. between 0-50 m = Gravel , 50-60 m = Sand , 60-80 m = Clay.) Rocks are located in different depths for different boreholes. So I need to interpolate these three points to create continuous surface with 3 boreholes.
I'm pretty new to QGIS, so it's better if someone could give me the instructions in detail since I tried to find what I look for from the questions that were asked before, but couldn't.
I want to create a continuous surface from 3 points of different borehole data to find the intermediate. I want to assume that the geological structure under the ground is same everywhere. I need to interpolate these three data sets to find an average subsurface model.
The thing that I do was to click interpolation under "raster", and then I chose one of the boreholes & added it. For cellsize X and Y I put 300, after I entered an output file name, I clicked OK but nothing comes to the layers panel. I tried the same thing for both TIN and IDW, but it didn't work.
If I add another thing (For example Heidelberg contour) instead of adding borehole that I created, then it works, at least something comes to the layers panel after I click OK. From the image you see below, nothing comes to the layers panel when I click OK.