I have a picture (fictional) of a mountain. What I want and am not able to do without help, is to make the coordinates and height to the right scale.

I have a line that represents 10 km on the original picture and some height contours. I've made the colour picture into greyscale but now, when I try to make it a 3D model using Qgis2threejs, I doesn't work, I think because the file doesn't have a DEM layer. The Profile Tool Plugin does give the right shape, but not the correct heights.

At the end of this I want to be able to calculate volumes of (pieces of) the mountain above certain contours. And I need to make a 3d model of these parts of the mountain (maybe using qgis2threejs plugin)

Edit: sorry for not giving enough info, the greyscale was made by checking which style the first picture had and turning each colour separatly into a 32-greyscale using GIMP like this. The first picture is only an image, so .png, therefore the grayscale is also only a .png image.

The image is not geo-referenced because it is a fictional mountain, the only reference is the 10 km line in the colour image. The height contours are 50 m each with the 2,4 to 2,5 km contours defined as such. This is the only data I have, two pictures.

enter image description here enter image description here

  • Welcome to GIS SE. As a new user, please take the Tour. We use a "Focused question / Best answer" model, and this question isn't as focused on a specific issue as much as it is a general tasking order (without the data or enough useful information to actually solve it). Please edit the question to detail the step(s) you used to make the greyscale image and what the range of values are, and where you were headed when you got stuck. – Vince Sep 7 '17 at 15:22
  • Is the image georeferenced ? Is the greyscale image made of polygons or is it a raster file ? What is the file format of your data ? – gisnside Sep 7 '17 at 17:23
  • I edited the question, it's not georeferenced. The grey scale (I think) is a raster file, because I just dragged and dropped the .png onto Qgis. This given, the format of my data is .png I guess. – E. de V. Sep 7 '17 at 17:44

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