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I want to make a 3D stand visualization of trees in a specific area. I need something similar in functionality to ArcGIS 3D Analyst, but I don't have a license for that plugin anymore.

The only alternative I have found is the Stand Visualization System from the USDA Forest Service, which works quite well, but has no GIS functionality.

I want to visualize the height and clustering of geographically referenced trees. There have to be different models for the tree species (spruce, beech, ... ).

EDIT: For all people searching for more tools -> here is another posting on gis.stack

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GRASS GIS grass.osgeo.org/download –  Mapperz Dec 10 '12 at 14:46
wonderful comment. Of course i know Grass gis and i use it intensively. Can you name me a function how to produce a graphic like this -> innovativegis.com/basis/present/GIS98_vis/GIS98_vis_files/… –  Curlew Dec 10 '12 at 14:51
@Curlew I don't have an answer for you, but I do have a question: do you have a census of this forest, or are you modeling sampling plots? –  canisrufus Dec 10 '12 at 15:00
I found this, which seems to have a geographic component: forsys.cfr.washington.edu/envision.html –  canisrufus Dec 10 '12 at 15:05
@Curlew, That image is classic output from the Forest Vegetation Simulator (FVS) via the Stand Visualization System (SVS). Given the nature of the model, it will take some playing around to get the specific results you want. You may be able to create this type of output from the LANDIS-II model: landis-ii.org –  Jeffrey Evans Dec 12 '12 at 2:02
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6 Answers

You can try the Virtual Terrain Project.

The goal of VTP is to foster the creation of tools for easily constructing any part of the real world in interactive, 3D digital form.

This goal will require a synergetic convergence of the fields of CAD, GIS, visual simulation, surveying and remote sensing. VTP gathers information and tracks progress in areas such as procedural scene construction, feature extraction, and rendering algorithms. VTP writes and supports a set of software tools, including an interactive runtime environment (VTP Enviro). The tools and their source code are freely shared to help accelerate the adoption and development of the necessary technologies.

enter image description here

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VTP indeed is a promising project. I surfed a little bit through the web and noticed that there is already a basic qgis plugin to link VTP with QGIS raster files and so on (tinyurl.com/cvw59w4). However iam still struggling through the compiling of VTP on Linux –  Curlew Dec 12 '12 at 11:17
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There is a GRASS-GIS Add-on v.trees3d for version 6 that can be used to create 3D visualisations of forests.

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If you could provide a screenshot it would be awesome –  nickves Dec 11 '12 at 23:28
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up vote 5 down vote accepted

I think in the end i will stay with the USGS Envison system. Their stand visualization system in fact has a geographical component, but prior to the visualization you have to format your data locations corresponding to your plot size.

  • First create a tbl file with the following parameter (From the Tbl2svs help)
    The following example shows a stand table that lists individual
      trees and down logs using the optional parameters:

      ;sp dbh ht  crn crown stat plt crn exp   X     Y   mark fell  end
      ;           rat rad        cls cls                 stat angle dia
      DF  28  152 .41 19.6   1    0  0   1.0  26.4  57.9  0    0    0.0
      RA  14   72 .58  9.6   1    0  0   1.0  98.1 121.5  0    0    0.0
      DF  42   53 .00  0.0   0    0  0   1.0 174.8  21.4  0   72   28.0
      DF  78  197 .39 26.4   1    0  0   1.0 142.4 171.9  0    0    0.0
      RC  62  162 .71 17.5   1    0  0   1.0  48.2 157.1  0    0    0.0
  • Then run the tbl2svs converter tool with your generated table as input.
  • Then display your trees with the WinSVS tool enter image description here
  • This works for simple plots. If you want to display whole landscapes take a look at the Envision programm mentioned above, where you can load in your SVS-files and also display objects from SHP files with a height attribute. enter image description here

I'll write a r-script to accomplish this task for me step by step.

This works for me right now, but i'm really eager to see some similar applications using the VTP software or the mentioned grass-gis addon. Feel free to use this thread to display similar workflows.

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Bioshere 3D sounds like it may have the functionality you need. There is a tutorial titled Biosphere3D Tutorial on the Visualization of Forest Stands in British Columbia, where they state:

Biosphere3D is an open source digital globe that is specialized on the realistic representation of vegetation. In contrast to GoogleEarth, it is open source and it is possible to import your own digital terrain models, orthophotos and 3d models of buildings. Through an advanced level-of-detail management Biosphere3D is able to show 3 Mio. trees and more in one scene. Therefore, it is very well suited for visual landscape assessment or for the visualization of future landscapes. Vegetation is distributed on basis of point shapefiles which can easily be generated from Vegetation Resource Inventory VRI. In conclusion, it is a very potential approach to visualization of forest in British Columbia and the following tutorial shows how to do that.

As it appears you can input point shapefiles, there seems to be a lot of potential here.

enter image description here

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another great suggestion. I'll download it and try it out. –  Curlew Dec 11 '12 at 18:04
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There's a cloud-based solution at GaiaStudio -- still in prototype, but worth a look.

enter image description here

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If you format your data in an x,y,z flatfile format you can treat it like lidar data and use FUSION for 3D visualization with image backdrops.

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