dynamic capsule list color

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Alexander Maier
Alexander Maier 2021-3-24
评论： Alexander Maier 2021-3-28
Hello,
I have a Program, which iterates multiple objects an n amount of steps into the future. For this I use the dynamic capsule list.
Link: https://de.mathworks.com/help/nav/ref/dynamiccapsulelist.html
Finally there is a visualisation of the capsules with
show(capList, 'TimeStep',1:capList.MaxNumSteps,'FastUpdate',1, 'ShowCollision', true);
drawnow;
For visual purposes I would like the capsules to be displayed in different colors and maybe add some additional capsules in a certain color. How could I manually set the color in this case? Thank you in advance!

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Adam Danz
Adam Danz 2021-3-24
I'm not familiar with dynamicCapsuleList objects at all but played around with it a bit. The object colors are defined by patch objects burried in a series of hggroups and hgtransforms. The patch colors are in the CData or FaceColor properties of the patch objects.
I don't know whether the color can be specified as input properties but here's how to change color after the objects are rendered.
Get handles to all ObstacleListEgoGroups
OLEG = findobj(gca, 'Tag','ObstacleListEgoGroup');
Get handles to the patches within the group
ph = findobj(OLEG, 'Type', "Patch");
Set the color of the first patch obj to red
ph(1).FaceColor = 'r';
To set a transition of colors set FaceColor to 'flat' and define the CData values (see patch documentation).

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