outline3生成在矩形网格上定义的曲面的三维轮廓图。
句法
contour3(Z) // It draws a contour plot of matrix Z in a three-dimensional view. Z is interpreted as heights concerning the x-y plane. contour3(Z, n) // It draws a contour plot of matrix Z with n contour levels in a three-dimensional view.contour3(Z, v) // It draws a contour plot of the matrix Z with contour lines at the values specified in vector v. The number of contour levels is similar to length(v). contour3(X, Y, Z) // It specifies the x and y coordinates for the values in Z.contour3(X, Y, Z, n) contour3(X, Y, Z, v)contour3(..., LineSpec) // It draws the contours using the line type and color specified by Line Spec.[C, h] = contour3(...) // It returns the contour matrix C as described in the function contour c and a column vector containing handles to graphics objects.例子
3-D等高线图
z=-5/(1+x^2+y^2 )|x|≤3, |y|≤3.r=linspace (-3, 3, 50);
[x, y]=meshgrid (r, r);
z= -5./(1+x.^2+y.^2);
contour3 (x, y, z)【MATLAB 3D函数contour3()】输出
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