118 lines
2.7 KiB
Plaintext
118 lines
2.7 KiB
Plaintext
{
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"cells": [
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"from matplotlib import pyplot\n",
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"from shapely.geometry import LineString\n",
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"%matplotlib inline\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"COLOR = {\n",
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" True: '#6699cc',\n",
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" False: '#ffcc33'\n",
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" }\n",
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"\n",
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"def v_color(ob):\n",
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" return COLOR[ob.is_simple]\n",
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"\n",
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"def plot_coords(ax, ob):\n",
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" x, y = ob.xy\n",
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" ax.plot(x, y, 'o', color='#999999', zorder=1)\n",
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"\n",
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"def plot_bounds(ax, ob):\n",
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" x, y = zip(*list((p.x, p.y) for p in ob.boundary))\n",
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" ax.plot(x, y, 'o', color='#000000', zorder=1)\n",
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"\n",
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"def plot_line(ax, ob):\n",
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" x, y = ob.xy\n",
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" ax.plot(x, y, color=v_color(ob), alpha=0.7, linewidth=3, solid_capstyle='round', zorder=2)\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": [
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"\n",
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"fig = pyplot.figure(1, figsize=(12,20), dpi=90)\n",
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"\n",
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"# 1: simple line\n",
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"ax = fig.add_subplot(121)\n",
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"line = LineString([(0, 0), (1, 1), (0, 2), (2, 2), (3, 1), (1, 0)])\n",
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"\n",
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"plot_coords(ax, line)\n",
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"plot_bounds(ax, line)\n",
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"plot_line(ax, line)\n",
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"\n",
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"ax.set_title('a) simple')\n",
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"\n",
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"xrange = [-1, 4]\n",
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"yrange = [-1, 3]\n",
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"ax.set_xlim(*xrange)\n",
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"ax.set_ylim(*yrange)\n",
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"ax.set_yticks(list(range(*yrange)) + [yrange[-1]])\n",
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"ax.set_aspect(1)\n",
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"\n",
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"#2: complex line\n",
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"ax = fig.add_subplot(122)\n",
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"line2 = LineString([(0, 0), (1, 1), (0, 2), (2, 2), (-1, 1), (1, 0)])\n",
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"\n",
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"plot_coords(ax, line2)\n",
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"plot_bounds(ax, line2)\n",
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"plot_line(ax, line2)\n",
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"\n",
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"ax.set_title('b) complex')\n",
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"\n",
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"xrange = [-2, 3]\n",
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"yrange = [-1, 3]\n",
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"ax.set_xlim(*xrange)\n",
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"ax.set_ylim(*yrange)\n",
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"ax.set_yticks(list(range(*yrange)) + [yrange[-1]])\n",
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"ax.set_aspect(1)\n",
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"\n",
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"pyplot.show()\n",
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"\n"
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]
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},
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{
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"cell_type": "code",
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"execution_count": null,
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"metadata": {},
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"outputs": [],
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"source": []
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}
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],
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"metadata": {
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"kernelspec": {
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"display_name": "Python 3",
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"language": "python",
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"name": "python3"
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},
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"language_info": {
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"codemirror_mode": {
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"name": "ipython",
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"version": 3
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},
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"file_extension": ".py",
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"mimetype": "text/x-python",
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"name": "python",
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"nbconvert_exporter": "python",
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"pygments_lexer": "ipython3",
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"version": "3.8.5"
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}
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},
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"nbformat": 4,
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"nbformat_minor": 2
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}
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