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Why does my line plot in MATLAB show a color gradient of black, green, and red?

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As seen in the attached image, I am trying to create a line plot with a particular color but it is displayed with a color gradient, predominantly of black, green, and red. This happens even if the default Color property is overridden. How can this be fixed?

Accepted Answer

MathWorks Support Team
MathWorks Support Team on 15 Apr 2016
This behavior is a known issue with certain Intel drivers. It has been addressed in the recent 4380 driver. There are two workarounds:
1) Use the OpenGL hardware basic mode
opengl hardwarebasic
2) Disable the align vertex centers property of the line
h=line(1:10);
h.AlignVertexCenters='off';

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