Tree visualization types
Tree visualization types category shows a list of tree types. A tree type is defined by the shape of the tree crown cross section and additional parameters. The tree type definitions are used in automatic tree detection from laser points with the Detect trees command.
You can Add, Edit, and Delete tree types by using the corresponding buttons in the Settings dialog.
Any settings related to Bentley cell elements do not have any effect in Spatix.
To create a new tree type:
1. Draw an outline of one half of a tree crown cross section as a line string in a CAD file front view.
You may use a cross section of a tree in laser points as background for digitizing the tree crown shape. The image on the right shows the approximate tree section centerline in white (used as helping line) and the outline in red.
2. Select the outline.
3. Open the Tree types category.
4. Click Add in the Settings dialog.
The Tree Type dialog opens:
5. Define settings and click OK.
6. Close the Settings dialog in order to save the tree type settings for TerraScan.
SETTING |
EFFECT |
|---|---|
Name |
Name of the tree type. |
Cell |
Name of a Bentley cell that is drawn into the CAD file when trees are detected. |
RPC cell |
Name and location of a RPC cell file that is used in rendered views to replace detected trees. |
Min height |
Minimum height of a tree. |
Max height |
Maximum height of a tree. |
Top is |
Distance between highest hit on the tree in laser points and the tree top of the tree cells. |
Width variation |
Variation of tree crown width for the tree type. Given in percent. |
Tree types are stored in a configuration file TREE_TYPES.INF in the TerraScan installation folder. You can copy this file to other computers in order to make tree type definitions available on them.
