Eye status window

[shbonita]

From iTrace-Core's interface there needs to be a eye status window that shows the eyes valid and the cm the user is from the screen. This can be a separate window from Core's UI. We can get the distance information from the Tobii Pro SDK.

The status window should have two circles indicating eye status. If no circle is visible then no eyes are tracked.

https://www.tobiipro.com/siteassets/tobii-pro/user-manuals/tobii-pro-studio-user-manual.pdf

[dtg3]

Example from the PDF

[ashwin9999]

I think these will be helpful for retrieving eye images:

http://devtobiipro.azurewebsites.net/tobii.research/c/reference/1.3.0.36-alpha-g7db606fa/eye_images_as_gif_8c-example.html#a2

http://devtobiipro.azurewebsites.net/tobii.research/c/reference/1.3.0.36-alpha-g7db606fa/structTobiiResearchEyeImageGif.html

http://devtobiipro.azurewebsites.net/tobii.research/c/reference/1.3.0.36-alpha-g7db606fa/eye_images_8c-example.html

[shbonita]

http://developer.tobiipro.com/c/c-sdk-reference-guide.html Click on data structures, then TobiiResearchGazePoint.

There are 2 sets of coordinates the sdks provide, the screen coordinates and the user coordinates. The user coordinates would provide distance. Thank to Ben for the above info.

[dtg3]

GazeData now holds user position x, y, and z. Code is in development, but has NOT been tested with tracker.

[dtg3]

Bump to June demo unless priority drops further.

[jmaletic]

This is dependent on finishing #22

[jmaletic]

Need eye status window in Qt widgets

[dtg3]

Have both eye color change and color bar on side. Use an indicator on color bar to indicate quality.

[dtg3]

Is this a known bug with the eye status window? Latest commit: 8da695f196f8f30d5d4de72a2b05367eb9177f34

Windows 10 / QT 5.11.1 / Tobii Tracker (connected via USB 3)

[dtg3]

The color flickering screen issue is still present even after commit 0cde1fc2571657321475d0b6e3166e2ea21d3f80.

[dtg3]

Since the solution utilizes openGL, I tested on systems with Nvidia and AMD GPUs and the results are the same as of commit bce9352d0fdd9225d726544fd71a5125f347f2f7

[jmaletic]

Blocked until new core is working.

[jmaletic]

No longer blocked in C# versions

[dtg3]

Support for the different trackers:

• Tobii - a custom eye status window will appear.
• Gazept - just make a socket call to open that window from the Gazept software.
• MouseTracker - Grey out the menu option to open the eye status window.

[vzyrianov]

The 3-D view of the eyes is being shown now. The distance slider still needs to be implemented.

[shbonita]

can you put a screen shot here?

[vzyrianov]

I don't have access to an eye tracker currently. But here's a screen shot of the window without it being updated with user position data.

[shbonita]

I think you can reduce the size of the window. no reason for it to be this big.

[vzyrianov]

Is this better?

[shbonita]

yes

[vzyrianov]

Latest version of the eye status window. There is only a single eye because I am using the mouse tracker.

Is this a good range of values on the slider (between 0cm and 100cm)? Should I adjust the red/green gradient?

[shbonita]

yes it is. I was caught off guard with the one-eyed person for a second.

[vzyrianov]

Eye status window is now complete.

• The view is 3d
• Window is resizable
• Distance should be reporting properly. (Tobii documentation doesn't describe what the units of the Z value are, but it appears to be in millimeters. The eye status window converts that to centimeters).

[shbonita]

what do you mean by the view is 3d?

[vzyrianov]

What I mean is that a perspective projection is done on the eye positions before they are drawn.

When the person moves back the distance between the circles is smaller. If the person moves closer the distance increases. etc.

So as you move your head around it looks like the eyes are in 3D.