====== Measure Techniques ======

This page describes all supported measurement techniques.

**Default 3D Measurement**

The default “3D Measurement” Measure Technique combines all supported single-click coordinate measurement techniques and returns the result of the first working technique. The Forward Intersection measurement technique, Point Cloud Flat Surface Intersection, and Point Cloud Ridges and Corners are excluded from this default 3D Measurement technique. The order of measurement technique that is used is the following:
  * Point Cloud Closest Point
  * Mesh Intersection
  * DEM Intersection
  * Reference Planes Intersection
  * Ground Surface Intersection

**Point Cloud Closest Point**

Measurement is based on Point Cloud.\\ 
See [[dev/technology/3d_mapping/measure_pointcloud]]

**Point Cloud Flat Surface Intersection**

Measurement is based on Point Cloud.\\ 
See [[dev/technology/3d_mapping/measure_pointcloud]]

**Point Cloud Ridges and Corners**

Measurement is based on Point Cloud. \\ 
See [[dev/technology/3d_mapping/measure_pointcloud]]

**Forward Intersection**

Measurement is based on triangulation.\\ 
See [[dev/technology/3d_mapping/measure_triangulation]]

**Mesh Intersection**

Intersect with Mesh surfaces only.

**Terrain Model Intersection**

The use of a terrain model simplifies a measurement. A coordinate measurement can be done with a single click in a single view, much faster compared to measurements by triangulation, but some experience and basic knowledge about elevation models is advised.

See [[dev/technology/3d_mapping/measure_reference_surface]]

**Ground Surface Intersection**

Coordinate measurement by intersecting the ground surface.\\ 
See [[dev/technology/3d_mapping/measure_reference_surface]]