This toolbox creates a circle (ellipse annotation) of a user specified radius at a clicked point. The toolbox illustrates how to:

  1. Add tools to a toolbox
  2. Use GISDK functions such as the annotation and style functions
  3. Use user input to perform tasks


  1. Download the file GISDK_Add and extract the file ADD CIRCLE.RSC. A good place to save the resource file is in the GISDK\Samples folder in the Maptitude program folder.
  2. Open or make current the map that you want to use.
  3. Choose Tools-GIS Developer's Kit-GISDK Toolbar to open the GISDK toolbar.
  4. Compile this toolbox in test mode using the Compile button (first button).
  5. Run this toolbox by clicking the Test button (second button), typing the dialog box name (circle), clicking the Dialog Box radio button, and clicking OK.

Click the button in the toolbox, double-click on a map where the circle should be centered, type the diameter of the circle in the edit box, and click OK. A freehand circle of the specified diameter is added to the map.