[Octave-bug-tracker] [bug #58282] Missing plot properties 'MarkerFaceAlpha' and 'MarkerEdgeAlpha' in the scatter function

[Markus Mützel]

Follow-up Comment #2, bug #58282 (project octave):

The attached patch adds a new "scatter" graphics object.

I don't know what to do about the polar and geographic coordinate data
properties. [1] They only apply to polar and geographic axes which Octave
doesn't support.
In the attached patch, I ignored them completely. But it would also be
possible (and maybe better) to add these properties and just leave their
values alone.

I also left in the old work-around using patch objects to be able to render
something with the gnuplot graphics toolkit.

At the current state, code setting "MarkerFaceAlpha" or "MarkerEdgeAlpha"
doesn't fail. But setting these properties doesn't change anything either.

Also setting "MarkerFaceColor" to "auto" isn't correctly implemented yet. It
should render the marker faces with the solid color of the axes background. At
the moment, they are completely transparent instead.

[1]:
https://de.mathworks.com/help/matlab/ref/matlab.graphics.chart.primitive.scatter-properties.html

(file #48999)
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Additional Item Attachment:

File name: bug58282_scatter_v1.patch      Size:42 KB
    <https://savannah.gnu.org/file/bug58282_scatter_v1.patch?file_id=48999>



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