OpenGL window

You can switch between then OpenGL 3D and the Draw 2D views by clicking on the tabs or by pressing 'Ctrl 1' or 'Ctrl 2', respectively.

Keyboard handle 3D-View

Key Description
i Reset view
x Set eye onto x-axis
y Set eye onto y-axis
z Set eye onto z-axis
Page-Up Decrease distance by 5.0
Page-Down Increase distance by 5.0
Up Decrease distance by 0.5
Down Increase distance by 0.5
< Decrease field of view by 0.5
> Increase field of view by 0.5
w Toggle between solid and wireframe representation.

Keyboard handle 2D-View

Key Description
r Reset viewing range
c Center origin

Mouse handle 2D-View

Button Description
left move origin
middle zoom in/out
right select a region to zoom in (top-left to bottom-down)
or out (bottom_down to top-left)