# How do I remove the flat parts that are not part of the function in Plot3D?

````GraphicsRow[
 {Plot3D[x^2 + y^2, {x, -6, 6}, {y, -6, 6}, PlotRange -> Automatic], 
  Plot3D[x^2 + y^2, {x, -6, 6}, {y, -6, 6}, 
   PlotRange -> {{-6, 6}, {-6, 6}, {0, 30}}],
  Plot3D[x^2 + y^2, {x, -6, 6}, {y, -6, 6}, 
   PlotRange -> {Full, Full, {0, 30}}]}, ImageSize -> 700]
````

yields

How do I get the full "bowl" look without the extra flat part filling out the plane at $z=30$? I must be missing something simple...

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– rm -rf♦ Jan 18 at 19:18

## 1 Answer

Use the `ClippingStyle` option to control the appearance of the cut off part.

````Plot3D[x^2 + y^2, {x, -6, 6}, {y, -6, 6}, 
 PlotRange -> {{-6, 6}, {-6, 6}, {0, 30}}, ClippingStyle -> None]
````

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lang-mma
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