3 Elements of the Main Window


  1. The canvas. Here you can

    Meaning of mouse-cursors:

    Normal cursor:
    The mouse isnīt pointing at anything. You can rotate the scene.
    Mirrored mousepointer:
    The mouse is above an object that can be selected or ’reverse dragged’ (meaning that the object is not free and can only be dragged by dragging the free objects it depends on).
    The mouse points at a free object that can be selected and moved.

    Potential problems:

    Rotating the coordinate-system is not possible:
    If too many objects are on the screen one cannot find a free space to click at. Solution: Pressing ’ALT’ disables selection and enables rotation.
  2. The object-tree: Here you can select and deselect objects or whole ranges. Right-clicking gives a context-menu.
  3. The toolbar: Choose actions that match the current selection or get popup-menus for constructing objects.
  4. The menu: In addition to the standard-menus for file-operations you have menus for constructing objects, measure and calculate, macros, typical tasks and extras.
  5. The command line: Here you can generate objects by entering commands. This is particularily useful for solving standard-tasks in textbooks.
  6. The small toolbar: Here you can find polymorphic commands like ’normal’, ’parallel’ and ’intersection’ as well as commands for redefining and grouping objects.