Version 5.0 The LEDA User Manual

The geometric objects
The objects stored in the containers of the scenes have to support input and output
operators for streams and the LEDA window and the output operator to the ps file.
Manual overview
The following manual pages have this structure:
• a) Main operations (creation of scenes)
• b) Window operations (initialization of the drawing window)
• c) Scenes and scene groups (get/set - operations for changing attributes)
• d) I/O operations
• e) View operations (zooming)
• f) Parameter operations (get/set - operations for instances of type GeoWin)
• g) Event handling
• h) Scene group operations
• i) Further operations (changing of the user interface, 3d output, ...)
#include < LEDA/graphics/geowin.h >
2. Creation
GeoWin GW (const char ∗ label = ”GEOWIN ”);
creates a GeoWin GW . GW is constructed with frame label label
GeoWin GW (int w, int h, const char ∗ label = ”GEOWIN ”);
creates a GeoWin GW with frame label label and window size w×h
pixels.
3. Operations
a) Main Operations
In this section you find operations for creating scenes and for starting
the interactive mode of GeoWin.
The new scene and get objects operations use member templates. If your compiler
does not support member templates, you should use instead the templated functions