sandey/blender
1
0
Fork 0
forked from bartvdbraak/blender
Code Pull Requests Activity

Some clearer comments on the meaning of the tabletdata struct's variables

Browse Source
This commit is contained in:
Matt Ebb 2006-11-12 09:52:03 +00:00
parent 6f474ccaca
commit 20cf5deb46
1 changed files with 10 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

13
intern/ghost/GHOST_Types.h
View File

@ -55,11 +55,18 @@ typedef enum
GHOST_kSuccess GHOST_kSuccess
} GHOST_TSuccess; } GHOST_TSuccess;
/* Xtilt and Ytilt represent how much the pen is tilted away from
* vertically upright in either the X or Y direction, with X and Y the
* axes of the tablet surface.
* In other words, Xtilt and Ytilt are components of a vector created by projecting
* the pen's angle in 3D space vertically downwards on to the XY plane
* --Matt
*/
typedef struct GHOST_TabletData { typedef struct GHOST_TabletData {
char Active; /* 0=None, 1=Stylus, 2=Eraser */ char Active; /* 0=None, 1=Stylus, 2=Eraser */
float Pressure; float Pressure; /* range 0.0 (not touching) to 1.0 (full pressure) */
float Xtilt; float Xtilt; /* range 0.0 (upright) to 1.0 (tilted fully against the tablet surface) */
float Ytilt; float Ytilt; /* as above */
} GHOST_TabletData; } GHOST_TabletData;