Cuboid marker with 90 bend

Hello,

Currently I'm working on a prototype.

I want to use 2 cuboid targets sticked together in a 90 degrees bend. See following picture:

In what way is it possible to build an target with more than 6 sides and also in a bend like in the picture. 

I tried to edit the xml file like this:

[code]

<?xml version="1.0" encoding="UTF-8"?>

<QCARConfig>     <Tracking>

        <ImageTarget name="StC_BigOpenMarker_1.Top" size="482.3 137.8"/>         <ImageTarget name="StC_BigOpenMarker_1.Right" size="137.8 137.8"/>         <ImageTarget name="StC_BigOpenMarker_1.Bottom" size="482.3 137.8"/>         <ImageTarget name="StC_BigOpenMarker_1.Left" size="137.8 137.8"/>         <ImageTarget name="StC_BigOpenMarker_1.Back" size="482.3 137.88"/>         <ImageTarget name="StC_BigOpenMarker_1.Front" size="482.3 137.8"/>

        <ImageTarget name="StC_BigOpenMarker_4.Top" size="482.3 137.8"/>         <ImageTarget name="StC_BigOpenMarker_4.Right" size="137.8 137.8"/>         <ImageTarget name="StC_BigOpenMarker_4.Bottom" size="482.3 137.8"/>         <ImageTarget name="StC_BigOpenMarker_4.Left" size="137.8 137.8"/>         <ImageTarget name="StC_BigOpenMarker_4.Back" size="482.3 137.88"/>         <ImageTarget name="StC_BigOpenMarker_4.Front" size="482.3 137.8"/>

             <MultiTarget name="StC_BigOpenMarker_1">            <Part name="StC_BigOpenMarker_1.Left" translation="-241.15 0 0" rotation="AD: 0 1 0 -90"/>            <Part name="StC_BigOpenMarker_1.Right" translation="241.15 0 0" rotation="AD: 0 1 0 90"/>            <Part name="StC_BigOpenMarker_1.Front" translation="0 0 68.9" rotation="AD: 1 0 0 0"/>            <Part name="StC_BigOpenMarker_1.Back" translation="0 0 -68.9" rotation="AD: 0 1 0 180"/>            <Part name="StC_BigOpenMarker_1.Top" translation="0 68.99 0" rotation="AD: 1 0 0 -90"/>            <Part name="StC_BigOpenMarker_1.Bottom" translation="0 -68.9 0" rotation="AD: 1 0 0 90"/>            <Part name="StC_BigOpenMarker_4.Left" translation="172.25 0 413.4" rotation="AD: 0 1 0 0"/>            <Part name="StC_BigOpenMarker_4.Right" translation="172.25 0 -68.9" rotation="AD: 0 1 0 180"/>            <Part name="StC_BigOpenMarker_4.Front" translation="103.35 0 172.25" rotation="AD: 0 1 0 -90"/>            <Part name="StC_BigOpenMarker_4.Back" translation="241.15 0 172.25" rotation="AD: 0 1 0 90"/>            <Part name="StC_BigOpenMarker_4.Top" translation="172.25 68.9 172.25" rotation="AD: 0 1 0 -90; 1 0 0 -90"/>            <Part name="StC_BigOpenMarker_4.Bottom" translation="172.25 -68.9 172.25" rotation="AD: 0 1 0 -90; 1 0 0 90"/>       </MultiTarget>                       </Tracking> </QCARConfig>

[/code]

But the result is this: https://youtu.be/WU-eo5Yte4w I've got the feeling that he won't track 2 cubes at the same time, the rotation is not right, and it will shuffle the markers.

The final result will be a marker like this, but than bigger:

Does anyone have a sollution for my problem?

Niels