Associate vertex coordinates and labelsHow to add vertex/edge labels to existing graphPlace graph vertex...
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Associate vertex coordinates and labels
How to add vertex/edge labels to existing graphPlace graph vertex labels in circlesExtracting vertex coordinates from an automatically laid out graphCalculating the median difference between elements with a (particular pair) of consecutive integer indices residing in the same sublistVertex labels versus vertex names in VertexRenderingFunctionVertex Names as Labels in GraphPlotsVertices overlap with vertex labelsPermutations on graph vertex labelsVertex labels of graph: {index,weight}Positioning of vertex labels on graph
$begingroup$
This sounds easy (in which case I will delete my question) and maybe I am getting a bit tired, but I can't find an easy way to create a list from an automatically-generated graph where vertices labels and coordinates are associated, e.g. {index_vertex, {x,y}}.
From this image...
...here is my code so far:
image = Import["https://i.stack.imgur.com/5ZNrE.png"];
mask = FillingTransform[Thinning[Binarize[ColorReplace[image, White -> Black, .055], 0]], CornerNeighbors -> True];
skel = Thinning[mask];
morphograph = MorphologicalGraph[skel, VertexSize -> 2, VertexLabels -> "Index"];
newtreegraph = TreeGraph[DeleteCases[EdgeList[morphograph], x_ [UndirectedEdge] x_], VertexCoordinates -> GraphEmbedding[morphograph], VertexSize -> 5, VertexLabels -> "Index"]
that generates this nice TreeGraph
From that, I can obtain the EdgeList and vertices coordinates via GraphEmbedding but cannot easily connect the two... There must be an easy way I can't find ... Thanks
list-manipulation graphs-and-networks
edited 6 hours ago
Henrik Schumacher
54k472149
asked 6 hours ago
ValacarValacar
496213
$endgroup$
add a comment |
$begingroup$
This sounds easy (in which case I will delete my question) and maybe I am getting a bit tired, but I can't find an easy way to create a list from an automatically-generated graph where vertices labels and coordinates are associated, e.g. {index_vertex, {x,y}}.
From this image...
...here is my code so far:
image = Import["https://i.stack.imgur.com/5ZNrE.png"];
mask = FillingTransform[Thinning[Binarize[ColorReplace[image, White -> Black, .055], 0]], CornerNeighbors -> True];
skel = Thinning[mask];
morphograph = MorphologicalGraph[skel, VertexSize -> 2, VertexLabels -> "Index"];
newtreegraph = TreeGraph[DeleteCases[EdgeList[morphograph], x_ [UndirectedEdge] x_], VertexCoordinates -> GraphEmbedding[morphograph], VertexSize -> 5, VertexLabels -> "Index"]
that generates this nice TreeGraph
From that, I can obtain the EdgeList and vertices coordinates via GraphEmbedding but cannot easily connect the two... There must be an easy way I can't find ... Thanks
list-manipulation graphs-and-networks
edited 6 hours ago
Henrik Schumacher
54k472149
asked 6 hours ago
ValacarValacar
496213
$endgroup$
add a comment |
$begingroup$
This sounds easy (in which case I will delete my question) and maybe I am getting a bit tired, but I can't find an easy way to create a list from an automatically-generated graph where vertices labels and coordinates are associated, e.g. {index_vertex, {x,y}}.
From this image...
...here is my code so far:
image = Import["https://i.stack.imgur.com/5ZNrE.png"];
mask = FillingTransform[Thinning[Binarize[ColorReplace[image, White -> Black, .055], 0]], CornerNeighbors -> True];
skel = Thinning[mask];
morphograph = MorphologicalGraph[skel, VertexSize -> 2, VertexLabels -> "Index"];
newtreegraph = TreeGraph[DeleteCases[EdgeList[morphograph], x_ [UndirectedEdge] x_], VertexCoordinates -> GraphEmbedding[morphograph], VertexSize -> 5, VertexLabels -> "Index"]
that generates this nice TreeGraph
From that, I can obtain the EdgeList and vertices coordinates via GraphEmbedding but cannot easily connect the two... There must be an easy way I can't find ... Thanks
list-manipulation graphs-and-networks
edited 6 hours ago
Henrik Schumacher
54k472149
asked 6 hours ago
ValacarValacar
496213
$endgroup$
This sounds easy (in which case I will delete my question) and maybe I am getting a bit tired, but I can't find an easy way to create a list from an automatically-generated graph where vertices labels and coordinates are associated, e.g. {index_vertex, {x,y}}.
From this image...
...here is my code so far:
image = Import["https://i.stack.imgur.com/5ZNrE.png"];
mask = FillingTransform[Thinning[Binarize[ColorReplace[image, White -> Black, .055], 0]], CornerNeighbors -> True];
skel = Thinning[mask];
morphograph = MorphologicalGraph[skel, VertexSize -> 2, VertexLabels -> "Index"];
newtreegraph = TreeGraph[DeleteCases[EdgeList[morphograph], x_ [UndirectedEdge] x_], VertexCoordinates -> GraphEmbedding[morphograph], VertexSize -> 5, VertexLabels -> "Index"]
that generates this nice TreeGraph
From that, I can obtain the EdgeList and vertices coordinates via GraphEmbedding but cannot easily connect the two... There must be an easy way I can't find ... Thanks
list-manipulation graphs-and-networks
list-manipulation graphs-and-networks
edited 6 hours ago
Henrik Schumacher
54k472149
asked 6 hours ago
ValacarValacar
496213
edited 6 hours ago
Henrik Schumacher
54k472149
asked 6 hours ago
ValacarValacar
496213
edited 6 hours ago
Henrik Schumacher
54k472149
edited 6 hours ago
Henrik Schumacher
54k472149
edited 6 hours ago
Henrik Schumacher
54k472149
54k472149
asked 6 hours ago
ValacarValacar
496213
asked 6 hours ago
ValacarValacar
496213
asked 6 hours ago
ValacarValacar
496213
496213
add a comment |
add a comment |
1 Answer
1
active
oldest
votes
$begingroup$
Do you mean this?
AssociationThread[
VertexList[newtreegraph],
PropertyValue[newtreegraph, VertexCoordinates]
]
<|1 -> {677.5, 957.5}, 8 -> {677.5, 953.5}, <<459>>, 455 -> {300.5, 84.5}|>
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
$endgroup$
1
$begingroup$
Instead ofPropertyValue[newtreegraph, VertexCoordinates]you can also useGraphEmbedding[newtreegraph].
$endgroup$
– Szabolcs
3 hours ago
add a comment |
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1 Answer
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votes
1 Answer
1
active
oldest
votes
active
oldest
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active
oldest
votes
$begingroup$
Do you mean this?
AssociationThread[
VertexList[newtreegraph],
PropertyValue[newtreegraph, VertexCoordinates]
]
<|1 -> {677.5, 957.5}, 8 -> {677.5, 953.5}, <<459>>, 455 -> {300.5, 84.5}|>
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
$endgroup$
1
$begingroup$
Instead ofPropertyValue[newtreegraph, VertexCoordinates]you can also useGraphEmbedding[newtreegraph].
$endgroup$
– Szabolcs
3 hours ago
add a comment |
$begingroup$
Do you mean this?
AssociationThread[
VertexList[newtreegraph],
PropertyValue[newtreegraph, VertexCoordinates]
]
<|1 -> {677.5, 957.5}, 8 -> {677.5, 953.5}, <<459>>, 455 -> {300.5, 84.5}|>
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
$endgroup$
1
$begingroup$
Instead ofPropertyValue[newtreegraph, VertexCoordinates]you can also useGraphEmbedding[newtreegraph].
$endgroup$
– Szabolcs
3 hours ago
add a comment |
$begingroup$
Do you mean this?
AssociationThread[
VertexList[newtreegraph],
PropertyValue[newtreegraph, VertexCoordinates]
]
<|1 -> {677.5, 957.5}, 8 -> {677.5, 953.5}, <<459>>, 455 -> {300.5, 84.5}|>
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
$endgroup$
Do you mean this?
AssociationThread[
VertexList[newtreegraph],
PropertyValue[newtreegraph, VertexCoordinates]
]
<|1 -> {677.5, 957.5}, 8 -> {677.5, 953.5}, <<459>>, 455 -> {300.5, 84.5}|>
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
answered 6 hours ago
Henrik SchumacherHenrik Schumacher
54k472149
54k472149
1
$begingroup$
Instead ofPropertyValue[newtreegraph, VertexCoordinates]you can also useGraphEmbedding[newtreegraph].
$endgroup$
– Szabolcs
3 hours ago
add a comment |
1
$begingroup$
Instead ofPropertyValue[newtreegraph, VertexCoordinates]you can also useGraphEmbedding[newtreegraph].
$endgroup$
– Szabolcs
3 hours ago
1
1
$begingroup$
Instead of
PropertyValue[newtreegraph, VertexCoordinates] you can also use GraphEmbedding[newtreegraph].$endgroup$
– Szabolcs
3 hours ago
$begingroup$
Instead of
PropertyValue[newtreegraph, VertexCoordinates] you can also use GraphEmbedding[newtreegraph].$endgroup$
– Szabolcs
3 hours ago
add a comment |
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