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When I use the Dashed option in my 3D parametric plot, the dashing looks very muddy and the dashes are running together. For example, I plot the below code, right click and Save Graphic As... to pdf. Notice the dashed lines running together in different parts of the plot.

ParametricPlot3D[{l, l, l^2}, {l, 0, 20}, PlotStyle -> {Red, Dashed},  
    PlotRange -> {{0, 10}, {0, 10}, {0, 20}}, Boxed -> False, AxesOrigin -> {0, 0, 0}] 

How can I fix this? I'm currently using Mathematica 9, not sure if this is still a problem in Mathematica 10.

plot image

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  • $\begingroup$ On a mac and v10 it looks as you'd expect $\endgroup$ – gpap Apr 8 '15 at 8:32
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I'm also on a Mac with v10 and see no issues. Perhaps you could try using Export and experimenting with the ImageSize and ImageResolution settings.

Export["~/Desktop/imgTEMP-800-300.pdf", plot1, ImageSize -> 800, ImageResolution -> 300]
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