Created using Colab

python_plotting_with_descriptions.ipynb

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+{
+  "cells": [
+    {
+      "cell_type": "markdown",
+      "metadata": {
+        "id": "view-in-github",
+        "colab_type": "text"
+      },
+      "source": [
+        "<a href=\"https://colab.research.google.com/github/GEORMC/Nnumerical_Methods_Course/blob/main/python_plotting_with_descriptions.ipynb\" target=\"_parent\"><img src=\"https://colab.research.google.com/assets/colab-badge.svg\" alt=\"Open In Colab\"/></a>"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "id": "b3809745",
+      "metadata": {
+        "id": "b3809745"
+      },
+      "source": [
+        "# Python Plotting Examples for Finite Element Course\n",
+        "\n",
+        "This notebook demonstrates how to create different types of plots using Python's `matplotlib` library.\n",
+        "We will cover the following:\n",
+        "1. Basic Plot\n",
+        "2. Adding Multiple Plots\n",
+        "3. Subplots\n",
+        "4. Customizing Plots\n",
+        "5. Saving a Plot\n",
+        "6. Finite Element Visualization Example\n",
+        "\n",
+        "Each section includes code and explanation of the corresponding plot.\n"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "id": "bea5d990",
+      "metadata": {
+        "id": "bea5d990"
+      },
+      "source": [
+        "## 1. Basic Plot Example\n",
+        "\n",
+        "This is a simple example of how to create a line plot using `matplotlib`.\n",
+        "We will plot a sine wave over a range of values.\n"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "id": "423c9f77",
+      "metadata": {
+        "id": "423c9f77"
+      },
+      "outputs": [],
+      "source": [
+        "import numpy as np\n",
+        "import matplotlib.pyplot as plt\n",
+        "\n",
+        "# Basic Plot Example\n",
+        "x = np.linspace(0, 10, 100)\n",
+        "y = np.sin(x)\n",
+        "\n",
+        "plt.plot(x, y)\n",
+        "plt.title('Sine Wave')\n",
+        "plt.xlabel('X axis')\n",
+        "plt.ylabel('Y axis')\n",
+        "plt.show()\n"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "id": "b9043cba",
+      "metadata": {
+        "id": "b9043cba"
+      },
+      "source": [
+        "## 2. Adding Multiple Plots\n",
+        "\n",
+        "Here, we will plot both a sine wave and a cosine wave on the same figure.\n"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "id": "f00fe565",
+      "metadata": {
+        "id": "f00fe565"
+      },
+      "outputs": [],
+      "source": [
+        "y1 = np.sin(x)\n",
+        "y2 = np.cos(x)\n",
+        "\n",
+        "plt.plot(x, y1, label='Sine')\n",
+        "plt.plot(x, y2, label='Cosine')\n",
+        "plt.title('Sine and Cosine Waves')\n",
+        "plt.xlabel('X axis')\n",
+        "plt.ylabel('Y axis')\n",
+        "plt.legend()\n",
+        "plt.show()\n"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "id": "e658c049",
+      "metadata": {
+        "id": "e658c049"
+      },
+      "source": [
+        "## 3. Subplots\n",
+        "\n",
+        "In this example, we will create two subplots to display the sine and cosine waves separately.\n"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "id": "d2a591fd",
+      "metadata": {
+        "id": "d2a591fd"
+      },
+      "outputs": [],
+      "source": [
+        "fig, axs = plt.subplots(2)\n",
+        "\n",
+        "axs[0].plot(x, y1)\n",
+        "axs[0].set_title('Sine Wave')\n",
+        "\n",
+        "axs[1].plot(x, y2, 'r')\n",
+        "axs[1].set_title('Cosine Wave')\n",
+        "\n",
+        "plt.tight_layout()\n",
+        "plt.show()\n"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "id": "445f62e1",
+      "metadata": {
+        "id": "445f62e1"
+      },
+      "source": [
+        "## 4. Customizing Plots\n",
+        "\n",
+        "You can customize the appearance of your plots by changing colors, markers, and line styles.\n"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "id": "78aa542e",
+      "metadata": {
+        "id": "78aa542e"
+      },
+      "outputs": [],
+      "source": [
+        "plt.plot(x, y, color='green', linestyle='--', marker='o')\n",
+        "plt.title('Customized Sine Wave')\n",
+        "plt.xlabel('X axis')\n",
+        "plt.ylabel('Y axis')\n",
+        "plt.show()\n"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "id": "5ced6964",
+      "metadata": {
+        "id": "5ced6964"
+      },
+      "source": [
+        "## 5. Saving a Plot\n",
+        "\n",
+        "Instead of showing the plot, you can save it to a file using `plt.savefig()`.\n"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "id": "2513d3d6",
+      "metadata": {
+        "id": "2513d3d6"
+      },
+      "outputs": [],
+      "source": [
+        "plt.plot(x, y)\n",
+        "plt.title('Sine Wave')\n",
+        "plt.savefig('sine_wave.png')\n"
+      ]
+    },
+    {
+      "cell_type": "markdown",
+      "id": "d26d08e1",
+      "metadata": {
+        "id": "d26d08e1"
+      },
+      "source": [
+        "## 6. Finite Element Visualization Example\n",
+        "\n",
+        "Here is a basic example of visualizing displacements in a finite element model by plotting both the undeformed and deformed shapes of a simple 2D structure.\n"
+      ]
+    },
+    {
+      "cell_type": "code",
+      "execution_count": null,
+      "id": "3af2977b",
+      "metadata": {
+        "id": "3af2977b"
+      },
+      "outputs": [],
+      "source": [
+        "nodes = np.array([[0, 0], [1, 0], [1, 1], [0, 1]])\n",
+        "displacements = np.array([[0, 0], [0.1, 0], [0.1, 0.1], [0, 0.1]])\n",
+        "\n",
+        "plt.plot(nodes[:, 0], nodes[:, 1], 'bo-', label='Undeformed')\n",
+        "plt.plot(nodes[:, 0] + displacements[:, 0], nodes[:, 1] + displacements[:, 1], 'ro-', label='Deformed')\n",
+        "plt.title('Finite Element Displacement Plot')\n",
+        "plt.xlabel('X Coordinate')\n",
+        "plt.ylabel('Y Coordinate')\n",
+        "plt.legend()\n",
+        "plt.show()\n"
+      ]
+    }
+  ],
+  "metadata": {
+    "colab": {
+      "provenance": [],
+      "include_colab_link": true
+    }
+  },
+  "nbformat": 4,
+  "nbformat_minor": 5
+}