{ "cells": [ { "cell_type": "markdown", "metadata": {}, "source": [ "\n# 3D surface (colormap)\n\nDemonstrates plotting a 3D surface colored with the coolwarm colormap.\nThe surface is made opaque by using ``antialiased=False``.\n\nAlso demonstrates using the `.LinearLocator` and custom formatting for the\nz axis tick labels.\n" ] }, { "cell_type": "code", "execution_count": null, "metadata": { "collapsed": false }, "outputs": [], "source": [ "import matplotlib.pyplot as plt\nimport numpy as np\n\nfrom matplotlib import cm\nfrom matplotlib.ticker import LinearLocator\n\nfig, ax = plt.subplots(subplot_kw={\"projection\": \"3d\"})\n\n# Make data.\nX = np.arange(-5, 5, 0.25)\nY = np.arange(-5, 5, 0.25)\nX, Y = np.meshgrid(X, Y)\nR = np.sqrt(X**2 + Y**2)\nZ = np.sin(R)\n\n# Plot the surface.\nsurf = ax.plot_surface(X, Y, Z, cmap=cm.coolwarm,\n linewidth=0, antialiased=False)\n\n# Customize the z axis.\nax.set_zlim(-1.01, 1.01)\nax.zaxis.set_major_locator(LinearLocator(10))\n# A StrMethodFormatter is used automatically\nax.zaxis.set_major_formatter('{x:.02f}')\n\n# Add a color bar which maps values to colors.\nfig.colorbar(surf, shrink=0.5, aspect=5)\n\nplt.show()" ] }, { "cell_type": "markdown", "metadata": {}, "source": [ ".. admonition:: References\n\n The use of the following functions, methods, classes and modules is shown\n in this example:\n\n - `matplotlib.pyplot.subplots`\n - `matplotlib.axis.Axis.set_major_formatter`\n - `matplotlib.axis.Axis.set_major_locator`\n - `matplotlib.ticker.LinearLocator`\n - `matplotlib.ticker.StrMethodFormatter`\n\n.. tags::\n plot-type: 3D,\n styling: colormap,\n level: advanced\n\n" ] } ], "metadata": { "kernelspec": { "display_name": "Python 3", "language": "python", "name": "python3" }, "language_info": { "codemirror_mode": { "name": "ipython", "version": 3 }, "file_extension": ".py", "mimetype": "text/x-python", "name": "python", "nbconvert_exporter": "python", "pygments_lexer": "ipython3", "version": "3.13.2" } }, "nbformat": 4, "nbformat_minor": 0 }