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3

What you're after is a Digital Elevation Model (DEM) (wikipedia) which represents surface elevation as a single band raster (i.e. your 2D height map). One starting point for getting DEM data is the USGS EarthExplorer data portal (http://earthexplorer.usgs.gov/) which allows you to select a region and search for data. If you use the map to zoom to Istanbul ...


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ArcScene is the ESRI approach to doing this. It is likely installed with ArcGIS so you should find it in the start menu. This is a typical ArcScene map. Basically your attribute value can become the extrusion, you often need to normalize data.


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Theoretically, something like that should be possible following these steps: In ArcGIS: Convert LiDAR raster to TIN Convert TIN to Multipatch Feature Export Multipatch Feature to Collada (.dae) In Skethcup: Import Collada file alter/edit 3D surface Save as Sketchup or export to a new Collada file In ArcScene Add original Multipatch feature In 3D Editor ...


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The Describe object also has the hasM and hasZ properties.


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The Petrosys plug-in for ArcGIS may be helpful. Our organization provides free academic and research licenses to qualifying students and university programs. Petrosys sub-surface modelling integrates effectively with GIS and Petroleum data sources and is used globally by professionals in the industry. Our sub-surface modelling is focused on the geophysical ...


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i haven't generated 25D polygons, but i have created linestrings with a z-coordinate. I'm able to view the lines in 3D in software other than QGIS (currently using visit). of course, i can still view the features in QGIS, just 2D.


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Many thanks to @jakub for pointing me on the right track. I'm posting the Python code snippet that I used in case it helps anyone. I looped through each borehole to find the XY coordinates, then looped through the soil readings to create 0.5m deep segments. One tip is that it (seems to be) necessary to offset one of the vertices by a small amount to avoid ...


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It is possible to turn borehole logs (XYZ points) into 3D polylines. I wrote a sript a few years ago that did just that but it was with ArcObjects. Each group of points had a unique value and I just looped and constructed 3D lines using the points as ToPoint and FromPoint and assigned soil type attribute to each line. Once complete I symbolized on soil type ...


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The simplest start point is Google SketchUp. http://download.cnet.com/SketchUp/3000-6677_4-10257337.html You will find most of the required materials online.



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