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+--- Thread: eGalax touchscreen calibration (/thread-832.html)
RE: eGalax touchscreen calibration - brantje - 12th Jun, 2013 04:55 AM
(12th Jun, 2013 04:42 AM)Markamc Wrote: I've modified the instructions slightly to avoid confusion and then tried it out on a fresh beta1 installation with no errors.Thanks, creating a backup now, will report asap.
Maybe add an ls /dev/input/ to the how to, to show the current input devices.
And i assume event0 or eventX is the touchscreen?
RE: eGalax touchscreen calibration - brantje - 12th Jun, 2013 06:19 AM
Got it working!!!
Code:
Center : X = 987 Y = 983
-51.846924 0.699852 0.001922
-57.274414 -0.003586 0.418633If i touch at most left, the cursor is at x 54-60 orso.
At most right cursor is at 1202
My almost working config:
Code:
calib_x_d=1310;calib_x_fact=-0.637;calib_y_d=778;calib_y_fact=-0.418633;swap_axes=0;Dou you still have double click issue's? Because i do have to tap a few times before it reacts.
RE: eGalax touchscreen calibration - Markamc - 12th Jun, 2013 06:43 AM
Great news, not ideal but run once it gave me a more accurate solution.
At the moment, the values given by the TS float too much for it to stay within the click-confines values in XBMC. This is because of the sensitivity of the TS. When I recompiled XBMC , i could select and single click when an option was high-lighted. I got tied of recompiling XBMC and didn't request a code change since it would make the mouse less accurate.
Since then, I've tried many things, best one so far was 'python-uinputmapper'. It re-maps and input event to another user-input event. I got it to grab the TS device and apply the calibrations and generate another event which XBMC uses. This is handy since I could use the pointer calib file directly and also add a float and fuzz values fr the TS to stop the jitter effect. I also have nearly found a way to monitor TOUCH duration to inject an BTN_RIGHT event, which would be handy!
Just looking at another solution too, evmapd, another mapping daemon doing a similar thing. My knowledge of python and C are limited, but really enjoying having a go. Prior to getting the Pi, I'd never used linux before.
I'll keep you posted if I get anywhere, you never know Gotham might provide better support
(12th Jun, 2013 06:19 AM)brantje Wrote: Got it working!!!
Only the x as is messed up so i need to tweak that value abit.Code:
Center : X = 987 Y = 983
-51.846924 0.699852 0.001922
-57.274414 -0.003586 0.418633
If i touch at most left, the cursor is at x 54-60 orso.
At most right cursor is at 1202
My almost working config:
Code:
calib_x_d=1310;calib_x_fact=-0.637;calib_y_d=778;calib_y_fact=-0.418633;swap_axes=0;
Dou you still have double click issue's? Because i do have to tap a few times before it reacts.
Just checking? did you see the crosses to select, I ended up changing the code to move them further into the centre before compilation to avoid having to remove my screen bezel, although I can use it with overscan, it strill works and reports the effective screen resolution
RE: eGalax touchscreen calibration - brantje - 12th Jun, 2013 08:00 AM
Yea, i saw the crosses and i touched them.
Rerun ts_calibrate gave me this
Code:
Center : X = 1002 Y = 1025
-76.956787 0.700770 0.000343
-55.800903 -0.012320 0.420659Code:
calib_x_d=1358;calib_x_fact=-0.700770;calib_y_d=775;calib_y_fact=-0.420659;swap_axes=0;Found a nice touch skin:
http://sourceforge.net/projects/xbmccartouch/
RE: eGalax touchscreen calibration - Markamc - 12th Jun, 2013 08:33 AM
Thanks I'll give it a go, having some success with uinput-mapper, i can set a float and fuzz value for the user-event which prevents the jitter and should make it easier to use in xbmc.
Looking into enabling a long-press right-click and using the calib file directly from ts-calibrate, also the ts_calibrate uses a formula which includes a component of x and y in both X and Y calculations to account for skew.
RE: eGalax touchscreen calibration - brantje - 12th Jun, 2013 08:13 PM
Made a movie =)
RE: eGalax touchscreen calibration - Markamc - 14th Jun, 2013 06:28 AM
Nice one Brantje, is this the skin you mentioned cartouch, I didn't meeet dependencies, not sure why yet?
UPDATE:
Managed to get python-uinputmapper working in the background to grab eGalax event and create a new inpuit/event.
So far, I can
1. Grab the egalax device
2. Add a new uinput event wiith additional features:
--Flat and fuzz values (to minimise reported events for finger press)
--Ability to swap axis and use the calibration info from ts_calibrate. (Not using the the egalax patch)
--BTN_RIGHT functionally (Inject the BTN_RIGHT event after a long-touch with no movement in a specified range)
--Detect a 'short-press' for selecting instead of double-click (Within a short time and range)
TODO:
1. Clean python code (I'm not a programmer)
2. Maybe set udev ruiles so xbmc can't grab device
2. create a daemon correctly, running in background atm '&'
it works for me with two command lines once set-up, so it is usable, but not ideal and could cause other issues.
RE: eGalax touchscreen calibration - brantje - 14th Jun, 2013 07:59 PM
(14th Jun, 2013 06:28 AM)Markamc Wrote: Nice one Brantje, is this the skin you mentioned cartouch, I didn't meeet dependencies, not sure why yet?Maybe if you can share your code, we can include in xbian and set it as an option to run it at boot.
UPDATE:
Managed to get python-uinputmapper working in the background to grab eGalax event and create a new inpuit/event.
So far, I can
1. Grab the egalax device
2. Add a new uinput event wiith additional features:
--Flat and fuzz values (to minimise reported events for finger press)
--Ability to swap axis and use the calibration info from ts_calibrate. (Not using the the egalax patch)
--BTN_RIGHT functionally (Inject the BTN_RIGHT event after a long-touch with no movement in a specified range)
--Detect a 'short-press' for selecting instead of double-click (Within a short time and range)
TODO:
1. Clean python code (I'm not a programmer)
2. Maybe set udev ruiles so xbmc can't grab device
2. create a daemon correctly, running in background atm '&'
it works for me with two command lines once set-up, so it is usable, but not ideal and could cause other issues.
Code clean ups, i don't know to much about python to do this, maybe ask curlymo or koenkk for this.
As for the skin, in addon.xml you have to change the xbmc.gui version from 3 to 4 i thought.
BTW, maybe we can create an topic in Hardware-> Periphal, with all info gathered from this topic.
With what is working / issue's / etc
RE: eGalax touchscreen calibration - Markamc - 19th Jun, 2013 02:29 PM
Been away for a few days....
Yep, no problem, I will post the details, if anyone is interested.
Currently, I start it at boot, in 'init.d' to capture the event before xbmc and it works well, without the need for the patch..,....VIDEO Xbian eGalax
The viideo shows a series of eGalax Touchscreen event presses, duration above 250ms gives an effective double click, above 500ms gives a right click.
It is dedicated to my setup though atm, although it is quite easy to change.
I haven't fully integrated the 'read directly from calib file' yet, but the values used are from ts_calibrate.
will post 'how to' soon
mark
RE: eGalax touchscreen calibration - raspuca - 20th Jun, 2013 03:58 AM
Great news!! You're great Markamc!
RE: eGalax touchscreen calibration - Markamc - 20th Jun, 2013 07:54 AM
Thanks raspuca, very kind, but I'm really a humble noob!.....how are you getting on? you started the thread, so hopefully it's all making sense.
RE: eGalax touchscreen calibration - raspuca - 20th Jun, 2013 05:49 PM
I'm very busy for university
but i want to place te raspcar (
) very soon! I'm very excited for this eheh 
Obviously after your new "patch"
RE: eGalax touchscreen calibration - brantje - 20th Jun, 2013 09:50 PM
(19th Jun, 2013 02:29 PM)Markamc Wrote: Been away for a few days....Cool, vid looks awsome!
Yep, no problem, I will post the details, if anyone is interested.
Currently, I start it at boot, in 'init.d' to capture the event before xbmc and it works well, without the need for the patch..,....VIDEO Xbian eGalax
The viideo shows a series of eGalax Touchscreen event presses, duration above 250ms gives an effective double click, above 500ms gives a right click.
It is dedicated to my setup though atm, although it is quite easy to change.
I haven't fully integrated the 'read directly from calib file' yet, but the values used are from ts_calibrate.
will post 'how to' soon
mark
What skin are you using?
RE: eGalax touchscreen calibration - raspuca - 20th Jun, 2013 10:38 PM
I thinks it's LightBox
RE: eGalax touchscreen calibration - Markamc - 20th Jun, 2013 11:13 PM
It's immersive, wip. It's in superepo, i think. if not,
http://forum.xbmc.org/showthread.php?tid=139712
I like lightbox and now nbox, but no good for mouse.