Use a Centroid Measurement (
![](images/comsol_ref_geometry.21.057.1.png)
) node to measure the coordinates of a point or the average position of a selection of points, shown in
Figure 7-7. It generates parameters for the measured coordinates that can be used in subsequent nodes in the geometry sequence or when setting up the physics, which is useful when running a parametric sweep changing dimensions in the geometry. The resulting coordinates also appear in the
Parameter Values section.
![](images/comsol_ref_geometry.21.057.2.png)
To add a Centroid Measurement node, optionally select points in the Graphics window, then choose one of the following:
Click the Active button to toggle between turning ON
![](images/comsol_ref_geometry.21.057.6.png)
and OFF
![](images/comsol_ref_geometry.21.057.7.png)
the
Vertices selection. Select the points (vertices) that you want to measure in the Graphics window. They then appear in the
Vertices selection. If the geometry sequence includes user-defined selections above the
Centroid Measurement node, choose one of the selection nodes from the list next to
Vertices.