Clearing plotCoverageArea plot in each loop while keeping a previous birdsEyePlot in the figure

I have code in which birdsEyePlot is supposed to be the boundary/background for my sensor plot.

I have incoming continuous ( while loop) sensor data which is plotted with plotCoverageArea.

When I use cla, it clears both birdsEyePlot and plotCoverageArea. When I don't use it, the plotCoverageArea overlaps the others and I cannot see data properly.

How can I keep birdsEyePlot in the figure window intact as background, while plotCoverageArea plot to be cleared and plotted again (or updated) in each loop.

The file is attached, I hope someone has answer.

Answer 1

[Greg Dionne]

Hi Haroon,

Don't create a new plotter every time in the loop. Just use plotCoverageArea() inside the loop for the coverage area plotter you defined outside the loop.

Something like:

% create a new bird's-eye plot
bep = birdsEyePlot( ... )

% create coverage area plotters and legend entries for left1, left2, and left3.
capLeft1 = coverageAreaPlotter(bep, 'DisplayName', 'DetectLeft1')
capLeft2 = coverageAreaPlotter(bep, 'DisplayName', 'DetectLeft2')
capLeft3 = coverageAreaPlotter(bep, 'DisplayName', 'DetectLeft3')

while < do something >
   % update the coverage area for capLeft1
   plotCoverageArea(capLeft1, ...)

   % update the coverage area for capLeft2
   plotCoverageArea(capLeft2, ...)

   % update the coverage area for capLeft3
   plotCoverageArea(capLeft3, ...)
end

Hope this helps!

-Greg

[Haroon]

This works! Thank you.