Plot Renderer with fill and semilogx

Question

Trevor Harris 2016-11-24

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评论： Walter Roberson 2016-11-29

Hey all,

I have a plot I'm generating that has both frequency domain plotted as semilogx, and timeseries as regular plots. I also have fills on the plot as well. I was hoping that the fill would be transparent (such that I can see the grid), in which case I must use the OpenGL renderer. However, this causes the semilogx plots to look quite odd. When I use the zbuffer renderer, I get good semilogx plots, but the fill is no longer transparent. Finally with the painters buffer, I can't even see the lines let alone gridlines. Please see the attached examples.

Is there something I'm missing, or will I just have to go with the zbuffer and live with it?

Thanks so much! Trevor

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Trevor Harris 2016-11-28

编辑：Walter Roberson 2016-11-29

在 MATLAB Online 中打开

>> opengl info
Version         = 4.3.12458 Compatibility Profile Context 13.200.0.0
Vendor          = ATI Technologies Inc.
Renderer        = AMD Radeon HD 7570M
MaxTextureSize  = 16384
Visual          = 02 (RGB 32 bits(08 08 08 08) zdepth 24, Hardware Accelerated, Opengl, Double Buffered, Window)
Software        = false
# of Extensions = 237
Driver Bug Workarounds:
OpenGLBitmapZbufferBug    = 0
OpenGLWobbleTesselatorBug = 0
OpenGLLineSmoothingBug    = 0
OpenGLDockingBug          = 0
OpenGLClippedImageBug     = 0
OpenGLEraseModeBug        = 0

Walter Roberson 2016-11-29

Trevor, which MATLAB version are you using, and which operating system? I would judge it most probable from your graphics hardware that you are using MS Windows, but which MATLAB ?

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Answer 1

Star Strider 2016-11-24

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I’ve not looked at your .fig files.

I would not use fill. If you want to change the 'FaceAlpha' transparency, I would use patch. It’s much easier to work with if you want to adjust its properties.

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Walter Roberson 2016-11-24

fill() creates patch objects, so it is a useful convenience function. It is valid to use fill() with 'FaceAlpha' name/value pair.

Star Strider 2016-11-24

I agree that it should be, but fill doesn’t always (in every release) apparently have 'FaceAlpha' as an option. I’ve encountered this problem in previous Questions.

We need to know the release, and whether 'FaceAlpha' works for Trevor Harris here. It always works with patch but not always with fill. (It works for both in R2016b.)

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