Graphics Modes During Dynamic Viewing
Graphics Modes During Dynamic Viewing
All dynamic viewing operations require a combination of two screen "meta" keys, ( ), and mouse buttons. The meta key(s) used dictates the graphics mode in which the image is transformed as follows:
| Transforms the image in the current graphics mode. For example if it is a hidden-line plot, then dynamic viewing will take place in hidden-line mode. | |
| <left control> + <mouse> | Transforms the image in "wire-frame" mode for the duration of the drawing operation. (i.e. no hidden-surface removal or lighting.) |
| <Left shift> &}<left control>} + <mouse> | Transforms the image in pre-computed free-edge mode for the duration of the drawing operation. (i.e. wire-frame of free edges only, no hidden-surface removal or lighting.) |
In the latter two cases the original drawing mode is always returned to at the end of the dynamic viewing operation. The wire-frame and free edge modes are provided to make transformations quicker for very large models and/or slow computers: free edge is very fast.
For the last case, with & held down together, the order of pressing and releasing the meta-keys matters: press before and release in the opposite order, otherwise you will (correctly) get the image redrawn in wire-frame mode as the key is pressed and released.