Changes between Version 16 and Version 17 of Sensors/LeicaLIDAR/MashUp

Timestamp:

Oct 13, 2009, 10:31:44 AM (15 years ago)

Author:

knpa

Comment:

--

Sensors/LeicaLIDAR/MashUp

@@ -560 +560 @@
  * Its better to classify too few points to ground than too many.
  * Its good to preclassify more difficult areas first. [i.e. classify large buildings and steep hill tops].
+ 
  * In TerraScan load in a LAS file.
- * Classify->Routine->ground
-   * use measurement tool to get max building size in area. Also for terrain slope can view elevation and use cross section tool to measure/estimate it.
-   * Initial points = aerial low and ground
-   * iteration angle = 6 degree to start with
-   * iteration distance = 1m to start with
  * Before ground classification we should remove noisy points. 
    * Default -> low points classification. 
    * Do this for group of points and then single points. 
-   *  We can set up a macro to do this.
+   * We can set up a macro to do this. 
  * Set up the Macro
    * Tools -> Macro
@@ -578 +574 @@
    * To run on large projects use “selected files” instead of reading all into memory.
  * Run the macro and check result.  Update distances etc used in the classifications if needed.
+ * Now to classify the ground points:
+   * Classify->Routine->ground
+   * use measurement tool to get max building size in area. Also for terrain slope can view elevation and use cross section tool to measure/estimate it.
+   * Initial points = aerial low and ground
+   * iteration angle = 6 degree to start with
+   * iteration distance = 1m to start with
  * Then add ground classification.  
    * Default -> ground.