Monday, February 7, 2011

Rotate geometries in Global Mapper

Rotating graphics is a common task in CAD software. It took Intergraph a while to add in CAD like functionalities in GeoMedia Professional. In Global Mapper, it is quite simple to rotate feature geometries about a point. Simply do the following:
  1. Start up Global Mapper. Digitize one or more vector geometries or load up a vector file.

  2. Click the Digitizer Tool  icon.
  3. Select one or more feature with the mouse.

    The features are selected.
  4. Press the right button of the mouse anywhere inside the map window.

    A pop up menu appears.
  5. Choose Rotate/Scale Selected Feature(s).

    The Setup Rotation and Scaling dialog box appears.
  6. In the Rotation Angle (Clockwise) field, type in the angle of rotation, e.g. 90.
  7. There are a few options to define the point of rotation - center, specific location, or vertex. Choose a method, e.g. About Vertex.

    Note: Unfortunately, you are not able to graphically click on a position. The location must be typed in, or selected from a list. However, Global Mapper shows you a preview of the rotation point (a red colored cross), as shown below.

  8. Click OK.

    The selected features are rotated.

No comments:

Related Posts with Thumbnails