20个MATLAB三维图像绘制的示例演示
简单的三维线图:
x = linspace(-pi, pi, 100); y = sin(x); z = cos(x); plot3(x, y, z)
三维柱状图:
x = 1:5; y = rand(1, 5); z = rand(1, 5); bar3(x, y, z)
三维散点图:
x = randn(100, 1); y = randn(100, 1); z = randn(100, 1); scatter3(x, y, z)
三维曲面图:
[X, Y] = meshgrid(-22); Z = X.^2 - Y.^2; surf(X, Y, Z)
三维等高线图:
[X, Y] = meshgrid(-22); Z = X.^2 + Y.^2; contour3(X, Y, Z)
三维条形图:
X = [1 2 3; 4 5 6; 7 8 9]; Y = [1 2 3; 4 5 6; 7 8 9]; Z = [1 2 3; 4 5 6; 7 8 9]; bar3(X, Y, Z)
三维填充图:
[X, Y] = meshgrid(-2:0.1:2); Z = X.^2 + Y.^2; fill3(X, Y, Z, 'r')
三维直方图:
x = randn(100, 1); y = randn(100, 1); z = randn(100, 1); hist3([x, y, z])
三维流线图:
[x, y, z] = meshgrid(-22, -22, -22); u = sin(x) .* cos(y) .* z; v = cos(x) .* sin(y) .* z; w = z .* sin(z); streamline(x, y, z, u, v, w)
三维箭头图:
[x, y, z] = sphere(20); u = x; v = y; w = z; quiver3(x, y, z, u, v, w)
三维网格线图:
[X, Y, Z] = meshgrid(-2:0.5:2, -2:0.5:2, -2:0.5:2); V = X.^2 + Y.^2 - Z.^2; meshgrid on mesh(X, Y, Z, V)
三维圆柱体:
[X, Y, Z] = cylinder; surf(X, Y, Z)
三维球体:
[x, y, z] = sphere; surf(x, y, z)
三维扇形图:
theta = linspace(0, pi, 100); rho = ones(1, 100); polarplot3d(theta, rho)
三维极坐标网格图:
theta = linspace(-pi/2, pi/2, 10); rho = linspace(0, 1, 10); polarplot3d(theta, repmat(rho', 1, numel(theta)))
三维旋转体:
[X, Y, Z] = cylinder; Z = Z * 2; surf(X, Y, Z)
三维锥体:
[X, Y, Z] = cylinder; Z = Z * 2; surf(X, Y, -Z) hold on [X, Y] = meshgrid(-11, -11); Z = sqrt(X.^2 + Y.^2) + 2; surf(X, Y, Z) hold off
三维螺旋线:
t = linspace(0, 10*pi, 1000); x = cos(t); y = sin(t); z = t; plot3(x, y, z)
三维旋转曲面:
theta = linspace(0, 2*pi, 100); phi = linspace(0, pi, 50)'; r = 2; x = r * sin(phi) * cos(theta); y = r * sin(phi) * sin(theta); z = r * cos(phi) * ones(size(theta)); surf(x, y, z)
三维旋转曲线:
theta = linspace(0, 6*pi, 1000); r = sin(theta); x = r .* cos(theta); y = r .* sin(theta); z = theta; plot3(x, y, z)
这些示例演示了MATLAB中三维图像绘制的一些常见应用。你可以根据具体需求进一步修改和定制这些示例,以便满足你的特定要求。请注意,某些示例可能需要特定的数据或函数支持。在实际使用时,请根据自己的数据和需求进行相应的调整。
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