Plot a marker that represents the center of mass of a group of overlays - "Center > Center Of Mass"

Note: To use the Add Group feature, you must be logged-in to a Pro account. To learn how to upgrade, visit this link: How to upgrade to a Pro account

Note: The marker cannot be plotted if the group includes one of these overlays:

• Isometric shape.
• Image overlay. 

Create the overlays

1. Create two or more overlays: For example; two markers and a polygon.

   To learn how to create the overlays, visit these links:

    

   Marker Tool—Create a marker
   

   Label Tool—Create a label

   Draw a rectangle - (Rectangle Tool)

   Draw a circle - (Circle Tool)

   Draw a polygon - (Polygon Tool)

   Line Tool—Draw a Straight Line, Connected Lines, Flight Line or Dimension Line

   Draw Tool—Draw a freeform line

   Pen/Curve Tool—Draw a precise curved line
   

    

Add the overlays to a folder

2. At the top of the Layers Panel, click on the Folder Icon displaying the tooltip: "Add Group".
   You will see the folder added to the Layers Panel.
    
3. Click and drag each overlay’s row into the folder.
   The folder now holds a set of overlays, so the folder is considered a Group.

   To learn more about grouping overlays, see; Grouping markers/elements by using folders.

Select the marker style and the group

4. At the top of the Layers Panel, click on the Toolbox's gear and wrench icon.
   You will see a window with Core Operations and Plugin options appear.
    
5. Under the "Analysis" heading > "Center" subheading, click on the link: "Center of Mass".
    
6. Under the "Marker" heading, click on the button: "select".
   The marker selector window will pop up.
    
7. In the left menu pane, click on the folder/sub-folders, then a category. For this example, we’ll choose; Tabs > Numeric Tabs > Blue.
    
8. (Optional) You can change the size of the marker. In the bottom-right corner of the window, click on the drop-down list to select: 100%, 75%, 50%, or 25%.
   Note: When you zoom in or out in the Map View, the default setting is: marker size remains the same.
    
9. In the right window pane, click on the marker style to select it.
    
10. Under the "Select Group" heading, click on the button: "Select".
     
11. Click on the group you created.

Plot, view, and name the marker

12. Click on the button: "Plot Center of Mass".
     
13. A pop-up will appear that says the center of Mass has been plotted. Click "Ok".
     
14. In the top-right corner of the Toolbox window, click on the "X" button, to close the window.
     
15. In the Layers Panel, you will see the marker’s row is titled: "Center of Mass". You can click on the Pencil Icon to edit the title.
     
16. In the Map View, you may have to zoom in or out to see the marker that represents the center of mass of a group of overlays. To find the marker quickly, click on the centring button on the marker’s row in the Layers Panel. The button is the outlined square with a dot at the center.

Related articles

If you want the map to continuously display information about the marker, you can add a label next to the marker. To learn how; visit this link: Label Tool—Create a label

To learn actions you can perform to improve the display of markers, visit this link: Optimize the display of markers and labels

Make the size of a marker shrink when you zoom out