Describe the last arc which was drawn on screen.
Source position: graphh.inc line 484
| type ArcCoordsType = record | ||
| x: SmallInt; | 
 | Center X coordinate. | 
| y: SmallInt; | 
 | Center Y coordinate. | 
| xstart: SmallInt; | 
 | Drawing segment start X coordinate. | 
| ystart: SmallInt; | 
 | Drawing segment start Y coordinate. | 
| xend: SmallInt; | 
 | Drawing segment end X coordinate. | 
| yend: SmallInt; | 
 | Drawing segment end Y coordinate. | 
| end; |