Polygon Labels (e.g. Field Names)
Roger Wiese
Last Update vor 4 Jahren
In agCommander, you don't need to add label objects to polygons, the polygon Name is automatically used to create the label.
When you select a layer of polygons, to view the labels use the "Show Labels" option as shown below.
Note that the bright green background colour of the panel below is indicating that there is a currently selected Layer.
How are Polygon Labels positioned?
The polygon name labels are positioned using a special calculation called the Center of Mass of a Polygon... or the Center of Gravity of a Polygon.
The image below explains what is meant by the center of mass. Notice that the "Centroid" of the polygons below are actually not even in the polygons.
In agCommander, the polygon center of mass is used as the left hand anchor of labels. That is, the label text begins at a polygon's center of mass.
