QNX RTOS v4 Knowledge Base
QNX RTOS v4 Knowledge Base
| Title |
Interpreting the QNX4 absf. file |
| Ref. No. |
QNX.000010109 |
| Category(ies) |
Input Devices |
| Issue |
I'm trying to configure my touch screen and would like to know how to interpret the file that acalib created - absf.<file>. |
| Solution |
reslx --> resolution lower x 0
resly --> resolution lower y 0
reshx --> resolution high x 639
reshy --> resolution high y 479
xoffset --> x offset low 74
xscale --> x offset high 1001
yoffset --> y offset low 16
yscale --> y offset high 939
swap --> swap x and y 0
The screen coords are 0,0 - 639,479 and the touch screen coords are 74,16 - 1001,939 (upper left - lower right corners).
Note that acalib will average out each x/y value. For example, x offset low comes from the sum of the 2 left corners (just x value) divided by 2. y offset low uses the 2 top corners... |
|
