Data Sheet

Schematic Capture
11
Configuration of the screen display takes place from the Set Display Options on the
System menu. Some of these options are specific to a particular hardware acceleration
technology and will be disabled when a different mode is enabled.
The Set Display Options Form for OpenGL and Direct2D
The first section of the dialogue reports on whether your graphics card will support OpenGL
and/or Direct2D hardware acceleration and, if so, allows you to switch between graphics mode.
The auto-pan section of the dialogue allows you to control distance, smoothness and speed of
pan operations on the schematic. For example, holding down the shift key and bumping the
mouse against the edge of the window will auto-pan the screen.
The highlight animation options allow you to specify the speed at which objects become active
when the mouse is moved over them. The attack rate is the rate at which the object is
highlighted and the release rate is the speed at which the object returns to its default state.
These options are only available in hardware accelerated display modes.
Finally, the multi-sampling combo box allows you to specify the level of anti-aliasing you want
when working in OpenGL mode. The higher the level of multi-sampling the better the anti-
aliasing effect but the more GPU resources are consumed. If you select a level of multi-
sampling which is not supported by your graphics hardware the software will reset the level to
the closest one which your card can handle.
What you get with multi-sampling varies enormously between graphics cards. Some
present extremely smooth text, while with others it looks blurry and on a few it causes