- Hi, I know that the is a possibility to "build" 3d structures - or rather to visualize shapefiles in 3d - in QGIS. ie. a "reconstruction" of a redoubt I have created earlier
- Alhtough I have not found a case study where a rectengular-like features where visualized.
- What I am looking for is to (re)"construct" a simple 3d visualization of ALS-derived dtm interpretation of a POW camp from IWW - most of the buildings where pit-houses. To put it simply a rectengular roof sticking out of ground.
- I know that it would probably be better for me to use some CAD software, but I have none experience with them and I do have GIS skills. I do not have access to ArcGIS and if possible I prefere not to use it.
If you want to use QGIS I suggest to use this workflow:
- DEM of the area of interest
- A colada Model which represents the buildings( models can be downloaded from this website or can be created with sketchup)
- A Point layer which represents the place, where the buildings used to stand
- Optional: Fields on the point layer which may hold rotation, height or scale values
- Optional: a base map or Orthophoto to use as overlay
- QGIS Version 2.14 or higher
- QGIS2threejs Plugin
- Sketchup: This might be the case if you want to be very realistic in the building of THE POW camp. You can use Sketchup (I am aware its a CAD software and op said he prefer not to use) to create the models if you dont find any suitable models in the provided links.
- Load the data into QGIS
- Deactivate every layer which you don't want to see in the final map ( for example the DEM and the points)
in the QGis2threejs tool, you chose COLLADA model as object type for the point layer.(see image 2)
- as Collada file, you either choose one which is exported via Sketchup or a file downloaded. - The values for scale and rotation I mostly use trial and error approach and use fixed values. - As DEM use the file with the heights and use it as the DEM layer - When clicking on run you will get a website which allows flying through the model as shown in image 3
I've tested the workflow with QGIS 2.18.12 SRTM Data and fast created Collada models