NormalsFunction
is an option for Plot3D and related functions that specifies a function to apply to determine the effective surface normals at every point.
Details
![](Files/NormalsFunction.en/details_1.png)
- The following settings can be given:
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None determine normals from explicit polygon vertices Automatic determine normals from overall surface properties f determine normals by applying a function f - With NormalsFunction->f, the arguments supplied to f are as follows:
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Plot3D x, y, z ParametricPlot3D x, y, z, u, v ContourPlot3D x, y, z, w RegionPlot3D x, y, z - The function f must return a vector of the form {vx,vy,vz}. Only the direction of this vector matters; the vector is in effect automatically normalized to unit length.
Examples
Wolfram Research (2007), NormalsFunction, Wolfram Language function, https://reference.wolfram.com/language/ref/NormalsFunction.html.
Text
Wolfram Research (2007), NormalsFunction, Wolfram Language function, https://reference.wolfram.com/language/ref/NormalsFunction.html.
CMS
Wolfram Language. 2007. "NormalsFunction." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/NormalsFunction.html.
APA
Wolfram Language. (2007). NormalsFunction. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/NormalsFunction.html