Setting same color for surface and parametric curve

Asked Aug 19 '17 at 11:47

Active Aug 19 '17 at 12:12

Viewed 143 times

How can we set the same color for a surface and a 3D parametric curve in version 9? Here is an example below.

Show[{Plot3D[-y, {t, -1, 0}, {y, -1, 1}, Mesh -> None], 
  ParametricPlot3D[{1, -t, t}, {t, -1, 1}, 
   PlotStyle -> {Thick}]}, PlotRange -> All]

More precisely, how can we determine the color of the surface and set it to the black line?

edited Aug 19 '17 at 12:12

asked Aug 19 '17 at 11:47

bkarpuz

From your picture, you seem to be using pre-version 10... – J. M.'s missing motivation Aug 19 '17 at 11:52
@J.M. Yes, it is 9.0 – bkarpuz Aug 19 '17 at 11:53
1

The thing is... the "color" in that surface is actually just the lights reflecting off the surface. Try adding Lighting -> "Neutral" to Plot3D[] to see what I mean. Now, since lines do not reflect light... – J. M.'s missing motivation Aug 19 '17 at 11:57
Oh, I see now. I tought it was like default curve color and filling color for 2d plots. What is the difference between default curve color and filling color for a 2d plot? – bkarpuz Aug 19 '17 at 12:04
I think I figured it out by using Plot[x^2, {x, 0, 1}, Filling -> Axis][[1]]. It is Hue[0.67, 0.6, 0.6] and Opacity[0.2], Hue[0.67, 0.6, 0.6] respectively. – bkarpuz Aug 19 '17 at 12:06
1

In version 10 onwards, what you ask is reasonable, since the surfaces aren't just white anymore. That color you extracted from Plot[] is ColorData[1, 1]. (See e.g. this.) – J. M.'s missing motivation Aug 19 '17 at 12:09
I have Mathematica 10 at my office. I will check it over there. – bkarpuz Aug 19 '17 at 12:45

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