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noklam/00_core.ipynb

Created February 20, 2020 15:13
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00_core.ipynb
{
"cells": [
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#default_exp core",
"execution_count": 1,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "# fastdot.core\n\n> Drawing graphs with graphviz."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\nfrom fastcore.all import *\nimport pydot\nfrom matplotlib.colors import rgb2hex, hex2color",
"execution_count": 14,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n_all_ = ['pydot']",
"execution_count": 15,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#hide\nfrom nbdev.showdoc import *",
"execution_count": 16,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "## Nodes"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef Dot(defaults=None, rankdir='LR', directed=True, compound=True, **kwargs):\n \"Create a `pydot.Dot` graph with fastai/fastdot style defaults\"\n return pydot.Dot(rankdir=rankdir, directed=directed, compound=compound, **kwargs)",
"execution_count": 17,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef uniq_name(o): return 'n'+(uuid4().hex)\n\ndef quote(x, q='\"'):\n 'Surround `x` with `\"`'\n return f'\"{x}\"'\n\n@patch\ndef _repr_svg_(self:pydot.Dot):\n return self.create_svg().decode('utf-8')",
"execution_count": 18,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ngraph_objects = {}\nobject_names = {}",
"execution_count": 19,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef add_mapping(graph_item, obj):\n graph_objects[graph_item.get_name()] = graph_item\n object_names[id(obj)] = graph_item.get_name()\n return graph_item",
"execution_count": 20,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef _pydot_create(f, obj, **kwargs):\n for k,v in kwargs.items():\n if callable(v): v = kwargs[k] = v(obj)\n if k not in ('name','graph_name'): kwargs[k] = quote(v)\n return add_mapping(f(**kwargs), obj)",
"execution_count": 21,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\nnode_defaults = dict(label=str, tooltip=str, name=uniq_name, shape='box', style='rounded, filled', fillcolor='white')",
"execution_count": 22,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef Node(obj, **kwargs):\n \"Create a `pydot.Node` with a unique name\"\n if not isinstance(obj,str) and isinstance(obj, Collection) and len(obj)==2:\n obj,kwargs['tooltip'] = obj\n kwargs = merge(node_defaults, kwargs)\n return _pydot_create(pydot.Node, obj, **kwargs)",
"execution_count": 23,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "`pydot` uses the same name-based approach to identifying graph items as `graphviz`. However we would rather use python objects. Therefore, we patch `pydot` to use unique names."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\na = Node('a')\ng.add_node(a)\ng ",
"execution_count": 31,
"outputs": [
{
"data": {
"image/svg+xml": "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\r\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\r\n \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\r\n<!-- Generated by graphviz version 2.38.0 (20140413.2041)\r\n -->\r\n<!-- Title: G Pages: 1 -->\r\n<svg width=\"62pt\" height=\"44pt\"\r\n viewBox=\"0.00 0.00 62.00 44.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\r\n<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 40)\">\r\n<title>G</title>\r\n<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-40 58,-40 58,4 -4,4\"/>\r\n<!-- n0110bb65118749d09015a10b13d08221 -->\r\n<g id=\"node1\" class=\"node\"><title>n0110bb65118749d09015a10b13d08221</title>\r\n<g id=\"a_node1\"><a xlink:title=\"a\">\r\n<path fill=\"white\" stroke=\"black\" d=\"M42,-36C42,-36 12,-36 12,-36 6,-36 0,-30 0,-24 0,-24 0,-12 0,-12 0,-6 6,-0 12,-0 12,-0 42,-0 42,-0 48,-0 54,-6 54,-12 54,-12 54,-24 54,-24 54,-30 48,-36 42,-36\"/>\r\n<text text-anchor=\"middle\" x=\"27\" y=\"-14.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">a</text>\r\n</a>\r\n</g>\r\n</g>\r\n</g>\r\n</svg>\r\n",
"text/plain": "<pydot.Dot at 0x1e500a54608>"
},
"execution_count": 31,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "type(g)",
"execution_count": 32,
"outputs": [
{
"data": {
"text/plain": "pydot.Dot"
},
"execution_count": 32,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "If a 2-tuple is passed to `add_node`, then the 2nd element becomes the tooltip. You can also pass any `kwargs` that are accepted by `graphviz`."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\ng.add_node(Node(['a', \"My tooltip\"], fillcolor='pink'))\ng",
"execution_count": 33,
"outputs": [
{
"data": {
"image/svg+xml": "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\r\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\r\n \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\r\n<!-- Generated by graphviz version 2.38.0 (20140413.2041)\r\n -->\r\n<!-- Title: G Pages: 1 -->\r\n<svg width=\"62pt\" height=\"44pt\"\r\n viewBox=\"0.00 0.00 62.00 44.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\r\n<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 40)\">\r\n<title>G</title>\r\n<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-40 58,-40 58,4 -4,4\"/>\r\n<!-- n92ae0971082c409fb3641ce0767e990b -->\r\n<g id=\"node1\" class=\"node\"><title>n92ae0971082c409fb3641ce0767e990b</title>\r\n<g id=\"a_node1\"><a xlink:title=\"My tooltip\">\r\n<path fill=\"pink\" stroke=\"black\" d=\"M42,-36C42,-36 12,-36 12,-36 6,-36 0,-30 0,-24 0,-24 0,-12 0,-12 0,-6 6,-0 12,-0 12,-0 42,-0 42,-0 48,-0 54,-6 54,-12 54,-12 54,-24 54,-24 54,-30 48,-36 42,-36\"/>\r\n<text text-anchor=\"middle\" x=\"27\" y=\"-14.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">a</text>\r\n</a>\r\n</g>\r\n</g>\r\n</g>\r\n</svg>\r\n",
"text/plain": "<pydot.Dot at 0x1e500a41fc8>"
},
"execution_count": 33,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "Keyword args can also be arbitrary functions, which will called with the node's label."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\no = 'a'\ng.add_node(Node(o, fillcolor=lambda o:'pink'))\ng",
"execution_count": 34,
"outputs": [
{
"data": {
"image/svg+xml": "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\r\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\r\n \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\r\n<!-- Generated by graphviz version 2.38.0 (20140413.2041)\r\n -->\r\n<!-- Title: G Pages: 1 -->\r\n<svg width=\"62pt\" height=\"44pt\"\r\n viewBox=\"0.00 0.00 62.00 44.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\r\n<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 40)\">\r\n<title>G</title>\r\n<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-40 58,-40 58,4 -4,4\"/>\r\n<!-- n9430834ba8d5483e81d5d7407b247ffc -->\r\n<g id=\"node1\" class=\"node\"><title>n9430834ba8d5483e81d5d7407b247ffc</title>\r\n<g id=\"a_node1\"><a xlink:title=\"a\">\r\n<path fill=\"pink\" stroke=\"black\" d=\"M42,-36C42,-36 12,-36 12,-36 6,-36 0,-30 0,-24 0,-24 0,-12 0,-12 0,-6 6,-0 12,-0 12,-0 42,-0 42,-0 48,-0 54,-6 54,-12 54,-12 54,-24 54,-24 54,-30 48,-36 42,-36\"/>\r\n<text text-anchor=\"middle\" x=\"27\" y=\"-14.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">a</text>\r\n</a>\r\n</g>\r\n</g>\r\n</g>\r\n</svg>\r\n",
"text/plain": "<pydot.Dot at 0x1e500a5d408>"
},
"execution_count": 34,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef object2graph(o):\n \"Get graph item representing `o`\"\n return graph_objects[object_names[id(o)]]",
"execution_count": 35,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "object2graph(o).get_fillcolor()",
"execution_count": 36,
"outputs": [
{
"data": {
"text/plain": "'\"pink\"'"
},
"execution_count": 36,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "## Colors"
},
{
"metadata": {},
"cell_type": "markdown",
"source": "The callable kwargs functionality can be used to map labels to colors in a consistent way.."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef obj2node_color(cm, minalpha, rangealpha, o):\n \"Create a consistent mapping from objects to colors, using colormap `cm`\"\n h = hash(o)\n i = float(h % 256) / 256\n alpha = (h^hash('something')) % rangealpha + minalpha\n return rgb2hex(cm(i)) + f'{alpha:02X}'",
"execution_count": 37,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#exports\ngraph_colors1 = partial(obj2node_color, plt.get_cmap('rainbow'), 30, 160)\ngraph_colors2 = partial(obj2node_color, plt.get_cmap('tab20'), 30, 160)",
"execution_count": 38,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "These predefined color mapping functions provide a good range of colors and readable text."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\ng.add_node(Node('a', fillcolor=graph_colors1))\ng.add_node(Node('b', fillcolor=graph_colors1))\ng",
"execution_count": 39,
"outputs": [
{
"data": {
"image/svg+xml": "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\r\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\r\n \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\r\n<!-- Generated by graphviz version 2.38.0 (20140413.2041)\r\n -->\r\n<!-- Title: G Pages: 1 -->\r\n<svg width=\"62pt\" height=\"98pt\"\r\n viewBox=\"0.00 0.00 62.00 98.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\r\n<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 94)\">\r\n<title>G</title>\r\n<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-94 58,-94 58,4 -4,4\"/>\r\n<!-- nf59f75a0ad614fad920015930c7e2f9a -->\r\n<g id=\"node1\" class=\"node\"><title>nf59f75a0ad614fad920015930c7e2f9a</title>\r\n<g id=\"a_node1\"><a xlink:title=\"a\">\r\n<path fill=\"#9bfba5\" fill-opacity=\"0.423529\" stroke=\"black\" d=\"M42,-36C42,-36 12,-36 12,-36 6,-36 0,-30 0,-24 0,-24 0,-12 0,-12 0,-6 6,-0 12,-0 12,-0 42,-0 42,-0 48,-0 54,-6 54,-12 54,-12 54,-24 54,-24 54,-30 48,-36 42,-36\"/>\r\n<text text-anchor=\"middle\" x=\"27\" y=\"-14.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">a</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- n5ef1142c5dd04829b8cdc96f989741f7 -->\r\n<g id=\"node2\" class=\"node\"><title>n5ef1142c5dd04829b8cdc96f989741f7</title>\r\n<g id=\"a_node2\"><a xlink:title=\"b\">\r\n<path fill=\"#583efd\" fill-opacity=\"0.458824\" stroke=\"black\" d=\"M42,-90C42,-90 12,-90 12,-90 6,-90 0,-84 0,-78 0,-78 0,-66 0,-66 0,-60 6,-54 12,-54 12,-54 42,-54 42,-54 48,-54 54,-60 54,-66 54,-66 54,-78 54,-78 54,-84 48,-90 42,-90\"/>\r\n<text text-anchor=\"middle\" x=\"27\" y=\"-68.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">b</text>\r\n</a>\r\n</g>\r\n</g>\r\n</g>\r\n</svg>\r\n",
"text/plain": "<pydot.Dot at 0x1e500b5c688>"
},
"execution_count": 39,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\ng.add_node(Node('a', fillcolor=graph_colors2))\ng.add_node(Node('b', fillcolor=graph_colors2))\ng",
"execution_count": 40,
"outputs": [
{
"data": {
"image/svg+xml": "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\r\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\r\n \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\r\n<!-- Generated by graphviz version 2.38.0 (20140413.2041)\r\n -->\r\n<!-- Title: G Pages: 1 -->\r\n<svg width=\"62pt\" height=\"98pt\"\r\n viewBox=\"0.00 0.00 62.00 98.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\r\n<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 94)\">\r\n<title>G</title>\r\n<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-94 58,-94 58,4 -4,4\"/>\r\n<!-- n8a0a892a46294134bd6c233931178a89 -->\r\n<g id=\"node1\" class=\"node\"><title>n8a0a892a46294134bd6c233931178a89</title>\r\n<g id=\"a_node1\"><a xlink:title=\"a\">\r\n<path fill=\"#c49c94\" fill-opacity=\"0.423529\" stroke=\"black\" d=\"M42,-36C42,-36 12,-36 12,-36 6,-36 0,-30 0,-24 0,-24 0,-12 0,-12 0,-6 6,-0 12,-0 12,-0 42,-0 42,-0 48,-0 54,-6 54,-12 54,-12 54,-24 54,-24 54,-30 48,-36 42,-36\"/>\r\n<text text-anchor=\"middle\" x=\"27\" y=\"-14.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">a</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- n879fe15631b740f7b5ccc9c7c01bff10 -->\r\n<g id=\"node2\" class=\"node\"><title>n879fe15631b740f7b5ccc9c7c01bff10</title>\r\n<g id=\"a_node2\"><a xlink:title=\"b\">\r\n<path fill=\"#aec7e8\" fill-opacity=\"0.458824\" stroke=\"black\" d=\"M42,-90C42,-90 12,-90 12,-90 6,-90 0,-84 0,-78 0,-78 0,-66 0,-66 0,-60 6,-54 12,-54 12,-54 42,-54 42,-54 48,-54 54,-60 54,-66 54,-66 54,-78 54,-78 54,-84 48,-90 42,-90\"/>\r\n<text text-anchor=\"middle\" x=\"27\" y=\"-68.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">b</text>\r\n</a>\r\n</g>\r\n</g>\r\n</g>\r\n</svg>\r\n",
"text/plain": "<pydot.Dot at 0x1e500b5c0c8>"
},
"execution_count": 40,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "We'll use the former color function as our default. You can change it by simply modifying `node_defaults`."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\nnode_defaults['fillcolor'] = graph_colors1",
"execution_count": 41,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "## Clusters and Items"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ncluster_defaults = dict(label=str, tooltip=str, graph_name=uniq_name, style='rounded, filled', fillcolor='#55555522')",
"execution_count": 42,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef Cluster(obj='', **kwargs):\n \"Create a `pydot.Cluster` with a unique name\"\n kwargs = merge(cluster_defaults, kwargs)\n return _pydot_create(pydot.Cluster, obj, **kwargs)",
"execution_count": 43,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\nsg = Cluster('clus', tooltip='Cluster tooltip')\nsg.add_node(Node(['a', \"My tooltip\"]))\nsg.add_node(Node('b'))\ng.add_subgraph(sg)\ng",
"execution_count": 44,
"outputs": [
{
"data": {
"image/svg+xml": "<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\"?>\r\n<!DOCTYPE svg PUBLIC \"-//W3C//DTD SVG 1.1//EN\"\r\n \"http://www.w3.org/Graphics/SVG/1.1/DTD/svg11.dtd\">\r\n<!-- Generated by graphviz version 2.38.0 (20140413.2041)\r\n -->\r\n<!-- Title: G Pages: 1 -->\r\n<svg width=\"94pt\" height=\"153pt\"\r\n viewBox=\"0.00 0.00 94.00 153.00\" xmlns=\"http://www.w3.org/2000/svg\" xmlns:xlink=\"http://www.w3.org/1999/xlink\">\r\n<g id=\"graph0\" class=\"graph\" transform=\"scale(1 1) rotate(0) translate(4 149)\">\r\n<title>G</title>\r\n<polygon fill=\"white\" stroke=\"none\" points=\"-4,4 -4,-149 90,-149 90,4 -4,4\"/>\r\n<g id=\"clust1\" class=\"cluster\"><title>cluster_n89051654684c4bc3aac2c6eb820a16b1</title>\r\n<g id=\"a_clust1\"><a xlink:title=\"Cluster tooltip\">\r\n<path fill=\"#555555\" fill-opacity=\"0.133333\" stroke=\"black\" d=\"M20,-8C20,-8 66,-8 66,-8 72,-8 78,-14 78,-20 78,-20 78,-125 78,-125 78,-131 72,-137 66,-137 66,-137 20,-137 20,-137 14,-137 8,-131 8,-125 8,-125 8,-20 8,-20 8,-14 14,-8 20,-8\"/>\r\n<text text-anchor=\"middle\" x=\"43\" y=\"-121.8\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">clus</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- n120facb5f8c547d2bf34998afcaf39c7 -->\r\n<g id=\"node1\" class=\"node\"><title>n120facb5f8c547d2bf34998afcaf39c7</title>\r\n<g id=\"a_node1\"><a xlink:title=\"My tooltip\">\r\n<path fill=\"#9bfba5\" fill-opacity=\"0.423529\" stroke=\"black\" d=\"M58,-106C58,-106 28,-106 28,-106 22,-106 16,-100 16,-94 16,-94 16,-82 16,-82 16,-76 22,-70 28,-70 28,-70 58,-70 58,-70 64,-70 70,-76 70,-82 70,-82 70,-94 70,-94 70,-100 64,-106 58,-106\"/>\r\n<text text-anchor=\"middle\" x=\"43\" y=\"-84.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">a</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- n0d69ff0a74dd48d9b4a148c459e09ef2 -->\r\n<g id=\"node2\" class=\"node\"><title>n0d69ff0a74dd48d9b4a148c459e09ef2</title>\r\n<g id=\"a_node2\"><a xlink:title=\"b\">\r\n<path fill=\"#583efd\" fill-opacity=\"0.458824\" stroke=\"black\" d=\"M58,-52C58,-52 28,-52 28,-52 22,-52 16,-46 16,-40 16,-40 16,-28 16,-28 16,-22 22,-16 28,-16 28,-16 58,-16 58,-16 64,-16 70,-22 70,-28 70,-28 70,-40 70,-40 70,-46 64,-52 58,-52\"/>\r\n<text text-anchor=\"middle\" x=\"43\" y=\"-30.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">b</text>\r\n</a>\r\n</g>\r\n</g>\r\n</g>\r\n</svg>\r\n",
"text/plain": "<pydot.Dot at 0x1e500b9b348>"
},
"execution_count": 44,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef nodes(self:pydot.Graph):\n \"`i`th node in `Graph`\"\n return L(o for o in self.get_nodes() if o.get_label() is not None)",
"execution_count": 45,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef __getitem__(self:pydot.Graph, i):\n \"`i`th node in `Graph`\"\n return self.nodes()[i]",
"execution_count": 46,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "You can subscript into a `Graph`'s `Node`s by index:"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "print(sg[0].get_label())",
"execution_count": 47,
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": "\"a\"\n"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef add_item(self:pydot.Graph, item, **kwargs):\n \"Add a `Cluster`, `Node`, or `Edge` to the `Graph`\"\n if not isinstance(item, (pydot.Edge,pydot.Node,pydot.Graph)): item = Node(item, **kwargs)\n f = self.add_node if isinstance(item, pydot.Node ) else \\\n self.add_subgraph if isinstance(item, pydot.Graph) else \\\n self.add_edge if isinstance(item, pydot.Edge ) else None\n f(item)\n return item",
"execution_count": 48,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef __add__(self:pydot.Graph, item, **kwargs):\n \"Add a `Cluster`, `Node`, or `Edge` to the `Graph`\"\n if not isinstance(item, (pydot.Edge,pydot.Node,pydot.Graph)): item = Node(item, **kwargs)\n f = self.add_node if isinstance(item, pydot.Node ) else \\\n self.add_subgraph if isinstance(item, pydot.Graph) else \\\n self.add_edge if isinstance(item, pydot.Edge ) else None\n f(item)\n return item",
"execution_count": null,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "There's no good reason to have different methods for adding clusters vs nodes (as `pydot` requires), so we provide a single method."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "a=g+sg",
"execution_count": null,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g= Dot()",
"execution_count": null,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "sg = Cluster('clus')",
"execution_count": null,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g",
"execution_count": null,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\nsg = Cluster('clus')\ng + sg\nsg + 'a'\ng",
"execution_count": null,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\nsg = Cluster('clus')\n# g.add_item(sg)\n# sg.add_item('a')\ng",
"execution_count": null,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef add_items(self:pydot.Graph, *items, **kwargs):\n \"Add `items` the `Graph`\"\n return L(self.add_item(it, **kwargs) for it in items)",
"execution_count": 50,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef graph_items(*items, **kwargs):\n \"Add `items` to a new `pydot.Dot`\"\n g = Dot()\n g.add_items(*items, **kwargs)\n return g",
"execution_count": 51,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "sg1 = Cluster('clus')\nsg1.add_items('n1', 'n2')\nsg2 = Cluster()\nsg2.add_item('n')\ngraph_items(sg1,sg2)",
"execution_count": 52,
"outputs": [
{
"data": {
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"text/plain": "<pydot.Dot at 0x1e500c313c8>"
},
"execution_count": 52,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "## Edges"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef first(self:pydot.Graph):\n \"First node in `Graph`, searching subgraphs recursively as needed\"\n nodes = self.nodes()\n if nodes: return nodes[0]\n for subg in self.get_subgraphs():\n res = subg.first()\n if res: return res",
"execution_count": 53,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef last(self:pydot.Graph):\n \"Lastt node in `Graph`, searching subgraphs recursively as needed\"\n nodes = self.nodes()\n if nodes: return nodes[-1]\n for subg in reversed(self.get_subgraphs()):\n res = subg.last()\n if res: return res",
"execution_count": 54,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef with_compass(self:(pydot.Node,pydot.Graph), compass=None):\n r = self.get_name()\n return f'{r}:{compass}' if compass else r",
"execution_count": 55,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "# export\n@patch\ndef connect(self:(pydot.Node,pydot.Graph), item, compass1=None, compass2=None, **kwargs):\n \"Connect two nodes or clusters\"\n a,b,ltail,lhead = self,item,'',''\n if isinstance(self,pydot.Graph):\n a = self.last()\n ltail=self.get_name()\n if isinstance(item,pydot.Graph):\n b = item.first()\n lhead=item.get_name()\n a,b = a.with_compass(compass1),b.with_compass(compass2)\n return pydot.Edge(a, b, lhead=lhead, ltail=ltail, **kwargs)",
"execution_count": 56,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "sg2 = Cluster('clus2')\nn1 = sg2.add_item('n1', fillcolor='pink')\nn2 = sg2.add_item('n2', fillcolor='lightblue')\nsg2.add_item(n1.connect(n2))\n\nsg1 = Cluster('clus1')\nsg1.add_item(sg2)\n\na,b = Node('a'),Node('b')\nedges = a.connect(b),a.connect(a),sg1.connect(b),sg2[0].connect(a)\ng = Dot()\ng.add_items(sg1, a, b, *edges)\ng",
"execution_count": 57,
"outputs": [
{
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d=\"M66,-114C66,-114 36,-114 36,-114 30,-114 24,-108 24,-102 24,-102 24,-90 24,-90 24,-84 30,-78 36,-78 36,-78 66,-78 66,-78 72,-78 78,-84 78,-90 78,-90 78,-102 78,-102 78,-108 72,-114 66,-114\"/>\r\n<text text-anchor=\"middle\" x=\"51\" y=\"-92.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">n1</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- n82f11263d3ea43a383e5fad417d19f79 -->\r\n<g id=\"node2\" class=\"node\"><title>n82f11263d3ea43a383e5fad417d19f79</title>\r\n<g id=\"a_node2\"><a xlink:title=\"n2\">\r\n<path fill=\"lightblue\" stroke=\"black\" d=\"M156,-114C156,-114 126,-114 126,-114 120,-114 114,-108 114,-102 114,-102 114,-90 114,-90 114,-84 120,-78 126,-78 126,-78 156,-78 156,-78 162,-78 168,-84 168,-90 168,-90 168,-102 168,-102 168,-108 162,-114 156,-114\"/>\r\n<text text-anchor=\"middle\" x=\"141\" y=\"-92.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">n2</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- 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font-size=\"14.00\">a</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- n35feb868a45f4770a49f7fd2a9d07f7e&#45;&gt;n19507a3b6bdb4827b0fd1e47252ef48c -->\r\n<g id=\"edge5\" class=\"edge\"><title>n35feb868a45f4770a49f7fd2a9d07f7e&#45;&gt;n19507a3b6bdb4827b0fd1e47252ef48c</title>\r\n<path fill=\"none\" stroke=\"black\" d=\"M72.4102,-77.9092C84.0992,-67.5484 98.9418,-54.3925 111.739,-43.0498\"/>\r\n<polygon fill=\"black\" stroke=\"black\" points=\"114.234,-45.5152 119.396,-36.2629 109.591,-40.2768 114.234,-45.5152\"/>\r\n</g>\r\n<!-- nef33d08909e64a73b068bb38af4c10a2 -->\r\n<g id=\"node4\" class=\"node\"><title>nef33d08909e64a73b068bb38af4c10a2</title>\r\n<g id=\"a_node4\"><a xlink:title=\"b\">\r\n<path fill=\"#583efd\" fill-opacity=\"0.458824\" stroke=\"black\" d=\"M246,-75C246,-75 216,-75 216,-75 210,-75 204,-69 204,-63 204,-63 204,-51 204,-51 204,-45 210,-39 216,-39 216,-39 246,-39 246,-39 252,-39 258,-45 258,-51 258,-51 258,-63 258,-63 258,-69 252,-75 246,-75\"/>\r\n<text text-anchor=\"middle\" x=\"231\" y=\"-53.3\" font-family=\"Times New Roman,serif\" font-size=\"14.00\">b</text>\r\n</a>\r\n</g>\r\n</g>\r\n<!-- n82f11263d3ea43a383e5fad417d19f79&#45;&gt;nef33d08909e64a73b068bb38af4c10a2 -->\r\n<g id=\"edge4\" class=\"edge\"><title>n82f11263d3ea43a383e5fad417d19f79&#45;&gt;nef33d08909e64a73b068bb38af4c10a2</title>\r\n<path fill=\"none\" stroke=\"black\" d=\"M183.844,-77.4555C187.464,-75.8511 191.104,-74.2381 194.665,-72.66\"/>\r\n<polygon fill=\"black\" stroke=\"black\" points=\"196.195,-75.8103 203.919,-68.5586 193.358,-69.4106 196.195,-75.8103\"/>\r\n</g>\r\n<!-- n19507a3b6bdb4827b0fd1e47252ef48c&#45;&gt;n19507a3b6bdb4827b0fd1e47252ef48c -->\r\n<g id=\"edge3\" class=\"edge\"><title>n19507a3b6bdb4827b0fd1e47252ef48c&#45;&gt;n19507a3b6bdb4827b0fd1e47252ef48c</title>\r\n<path fill=\"none\" stroke=\"black\" d=\"M124.718,-36.1527C122.213,-45.5391 127.641,-54 141,-54 149.141,-54 154.336,-50.8581 156.586,-46.2796\"/>\r\n<polygon fill=\"black\" stroke=\"black\" 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"text/plain": "<pydot.Dot at 0x1e500c80b48>"
},
"execution_count": 57,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef object_connections(conns):\n \"Create connections between all pairs in `conns`\"\n return [object2graph(a).connect(object2graph(b)) for a,b in conns]",
"execution_count": 58,
"outputs": []
},
{
"metadata": {},
"cell_type": "markdown",
"source": "This is a shortcut for creating connections between objects that are already in a graph."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "a,b = 'a','b'\ng = graph_items(a, b)\ng.add_items(*object_connections([(a,b)]))\ng",
"execution_count": 59,
"outputs": [
{
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"text/plain": "<pydot.Dot at 0x1e500c53748>"
},
"execution_count": 59,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "## Sequential"
},
{
"metadata": {},
"cell_type": "markdown",
"source": "Since it's common to want to connect a series sequentially, we provide some simple shortcuts for this functionality."
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef graph_edges_seq(items):\n \"Add edges between each pair of nodes in `items`\"\n return L(items[i].connect(items[i+1]) for i in range(len(items)-1))",
"execution_count": 60,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\n@patch\ndef add_edges_seq(self:pydot.Graph, items):\n \"Add edges between each pair of nodes in `items`\"\n return self.add_items(*graph_edges_seq(items))",
"execution_count": 61,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\nits = g.add_items('a','b','c')\ng.add_edges_seq(its)\ng",
"execution_count": 62,
"outputs": [
{
"data": {
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"text/plain": "<pydot.Dot at 0x1e500c5ab88>"
},
"execution_count": 62,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#export\ndef seq_cluster(items, cluster_label='', **kwargs):\n sg = Cluster(cluster_label)\n its = sg.add_items(*items, **kwargs)\n sg.add_edges_seq(its)\n return sg",
"execution_count": 63,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\ng.add_item(seq_cluster(['a','b','c'], 'clust'))\ng.add_item(seq_cluster(['1','2','c'], 'clust2'))\ng",
"execution_count": 64,
"outputs": [
{
"data": {
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stroke=\"black\" d=\"M160.403,-117C168.393,-117 177.311,-117 185.824,-117\"/>\r\n<polygon fill=\"black\" stroke=\"black\" points=\"185.919,-120.5 195.919,-117 185.919,-113.5 185.919,-120.5\"/>\r\n</g>\r\n</g>\r\n</svg>\r\n",
"text/plain": "<pydot.Dot at 0x1e500cfd188>"
},
"execution_count": 64,
"metadata": {},
"output_type": "execute_result"
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]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "g = Dot()\ng.add_item(seq_cluster(['a','b','c'], 'clust'))\ng",
"execution_count": 65,
"outputs": [
{
"data": {
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"text/plain": "<pydot.Dot at 0x1e500c98608>"
},
"execution_count": 65,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "sg1 = seq_cluster(['a','b','c'], 'clust1')\nsg2 = seq_cluster(['a1','a2',sg1], 'clust2')\ng = Dot()\ng.add_item(sg2)\ng",
"execution_count": 66,
"outputs": [
{
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"text/plain": "<pydot.Dot at 0x1e500d3f808>"
},
"execution_count": 66,
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]
},
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"cell_type": "code",
"source": "sg1 = seq_cluster(['inp'], 'clust1')\nsg2 = seq_cluster(['a','b','c'], 'clust2')\nsg2.add_items(sg1.connect(sg2[-1]), sg1.connect(sg2))\ng = Dot()\ng.add_items(sg1,sg2)\ng",
"execution_count": 67,
"outputs": [
{
"data": {
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"text/plain": "<pydot.Dot at 0x1e500dc7a08>"
},
"execution_count": 67,
"metadata": {},
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}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "# export\ndef Point(label='pnt', **kwargs):\n \"Create a `Node` with a 'point' shape\"\n return (Node('pnt', shape='point'))",
"execution_count": 68,
"outputs": []
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "sg = Cluster('clus')\na,b,c = sg.add_items('a','b','c')\np = sg.add_item(Point())\nsg.add_item(p.connect(c))\nsg.add_items(p.connect(a), a.connect(b), b.connect(c))\n\ng = Dot()\ng.add_items(sg)\ng",
"execution_count": 69,
"outputs": [
{
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"text/plain": "<pydot.Dot at 0x1e500e4e9c8>"
},
"execution_count": 69,
"metadata": {},
"output_type": "execute_result"
}
]
},
{
"metadata": {},
"cell_type": "markdown",
"source": "# Export -"
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "#hide\nfrom nbdev.export import notebook2script\nnotebook2script()",
"execution_count": 70,
"outputs": [
{
"name": "stdout",
"output_type": "stream",
"text": "Converted 00_core.ipynb.\nConverted index.ipynb.\n"
}
]
},
{
"metadata": {
"trusted": true
},
"cell_type": "code",
"source": "",
"execution_count": null,
"outputs": []
}
],
"metadata": {
"kernelspec": {
"name": "python3",
"display_name": "Python 3",
"language": "python"
},
"jupytext": {
"formats": "ipynb,py:light"
},
"language_info": {
"name": "python",
"version": "3.7.4",
"mimetype": "text/x-python",
"codemirror_mode": {
"name": "ipython",
"version": 3
},
"pygments_lexer": "ipython3",
"nbconvert_exporter": "python",
"file_extension": ".py"
},
"toc": {
"nav_menu": {},
"number_sections": true,
"sideBar": true,
"skip_h1_title": false,
"base_numbering": 1,
"title_cell": "Table of Contents",
"title_sidebar": "Contents",
"toc_cell": false,
"toc_position": {},
"toc_section_display": true,
"toc_window_display": true
},
"gist": {
"id": "",
"data": {
"description": "/00_core.ipynb",
"public": true
}
}
},
"nbformat": 4,
"nbformat_minor": 2
}
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