I work with engineering geology, and my workflow includes making many cross sections of a given site, with data from maps, fieldwork (outcrops) and boreholes.
What I'm looking for is a way of taking many cross sections and making a 3D model, even with lots of (CAD) drawing work, but preferably with few code or programming knowledge.
So, when I first noticed this software (GSI3D), that takes many cross sections (actually a fence diagram) and gives, as a result, a 3D model, made of solids and not just surfaces, I thought it would be the perfect software. The image below is from the software website.
Given that I don't have the resources to buy it, I was thinking if there wouldn't be a free alternative (open source software) to this approach.
So I think the approach would be:
The approach would be a first, simple, computer made interpolation, refined by manual adjustments.
To make it clearer, I'm not looking for a way of making a 3D geological model with complex interpolation algorithms to do all the work for me. I wouldn't mind having many iterations of cross sections to adjust and refine the 3D model, but I need a first (simple) interpolation so that I can work from it. The GSI3D approach seems to be it (I haven't used the software, but that's what I've understand).
I've read many questions (1, 2, 3 and 4), forums discussions (5) and papers (this one - 6 - looks good, but the author didn't uses GIS), and it appears that GRASS would be the best choice, but the discussion (when using GRASS) seems to be always about an algorithm to do the hard work or using an expensive, proprietary software.
If the answer is GRASS, what would be the tools to do it (as I sad earlier, is there a way of doing it with just a few programming knowledge)?
Thanks in advance.
1: gis.stackexchange.com/questions/90374/looking-for-a-free-program-for-3d-visualization
2: gis.stackexchange.com/questions/41701/is-there-are-qgis-plugin-to-allow-the-3d-visualisation-of-geological-borehole-da
3: gis.stackexchange.com/questions/80617/3d-visualisation-with-open-source-gis-software
4: gis.stackexchange.com/questions/87817/combining-geological-grids-and-extruding-between-them
5: osgeo-org.1560.x6.nabble.com/Searching-Docs-about-3D-geological-modelisation-td3904580.html
6: www.sciencedirect.com/science/article/pii/S0098300403000517
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What I'm looking for is a way of taking many cross sections and making a 3D model, even with lots of (CAD) drawing work, but preferably with few code or programming knowledge.
So, when I first noticed this software (GSI3D), that takes many cross sections (actually a fence diagram) and gives, as a result, a 3D model, made of solids and not just surfaces, I thought it would be the perfect software. The image below is from the software website.
Given that I don't have the resources to buy it, I was thinking if there wouldn't be a free alternative (open source software) to this approach.
So I think the approach would be:
- Take the (CAD drawn) cross sections and combine them all in a GIS software, resulting in a fence diagram;
- Interpolate between all of the cross sections, resulting in surfaces, or even better, solids, each one representing a geological layer or lithotype;
- Make new cross sections between the former ones, to refine and adjust the model.
The approach would be a first, simple, computer made interpolation, refined by manual adjustments.
To make it clearer, I'm not looking for a way of making a 3D geological model with complex interpolation algorithms to do all the work for me. I wouldn't mind having many iterations of cross sections to adjust and refine the 3D model, but I need a first (simple) interpolation so that I can work from it. The GSI3D approach seems to be it (I haven't used the software, but that's what I've understand).
I've read many questions (1, 2, 3 and 4), forums discussions (5) and papers (this one - 6 - looks good, but the author didn't uses GIS), and it appears that GRASS would be the best choice, but the discussion (when using GRASS) seems to be always about an algorithm to do the hard work or using an expensive, proprietary software.
If the answer is GRASS, what would be the tools to do it (as I sad earlier, is there a way of doing it with just a few programming knowledge)?
Thanks in advance.
1: gis.stackexchange.com/questions/90374/looking-for-a-free-program-for-3d-visualization
2: gis.stackexchange.com/questions/41701/is-there-are-qgis-plugin-to-allow-the-3d-visualisation-of-geological-borehole-da
3: gis.stackexchange.com/questions/80617/3d-visualisation-with-open-source-gis-software
4: gis.stackexchange.com/questions/87817/combining-geological-grids-and-extruding-between-them
5: osgeo-org.1560.x6.nabble.com/Searching-Docs-about-3D-geological-modelisation-td3904580.html
6: www.sciencedirect.com/science/article/pii/S0098300403000517
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