graphviz

问题 I am teaching myself Python and NLTK for work using the book "Natural Language Processing with Python" ("www.nltk.org/book"). I am stuck on Chapter 4 Section 4 part 8 on NetworkX. When I try to run example 4.15, it should draw a graph, but instead I get the following error message: AttributeError: module 'networkx.drawing' has no attribute 'graphviz_layout' The culprit code line appears to be >>> nx.draw_graphviz(graph, node_size = [16 * graph.degree(n) for n in graph], node_color = [graph

问题 This question does not solve the problem that I'm facing, but my question is based on it. What I'm trying to achieve is to plot a directed graph with labelled nodes and unlabelled edges using graphviz package. In my case nodes have labels of type String (the type definition of the graph is Gr String () ). Here's the code (where used graph is a minified version of clr486 - a perfect example of my use case): module Main where import Data.Graph.Inductive.Graph (mkGraph) import Data.Graph

问题 This question does not solve the problem that I'm facing, but my question is based on it. What I'm trying to achieve is to plot a directed graph with labelled nodes and unlabelled edges using graphviz package. In my case nodes have labels of type String (the type definition of the graph is Gr String () ). Here's the code (where used graph is a minified version of clr486 - a perfect example of my use case): module Main where import Data.Graph.Inductive.Graph (mkGraph) import Data.Graph

问题 I want to generate something like this - the alignment of the nodes is the important thing, not the angle of the edges: +--------------+ | | +--------------+ | | V V +-----+ +-----+ <--- alignment at top | | | | | |->| | | | | | +-----+ | | | | | V | | +-----+ | | | | | | | |->| | | | | | +-----+ +-----+ <--- alignment at bottom | | V V +--------------+ | | +--------------+ The best I've been able to come up with is to stick the two left nodes into a cluster subgraph with a white (=>

问题 I'm trying to use GraphViz to draw graphical models. However, I didn't find a way to make draw overlapping clusters. For example, how can I make "nodeA->nodeB" to lie inside both clusterA and clusterB? 回答1: AFAIK you can't. Clusters as described in the documentation: If the name of the subgraph begins with cluster, Graphviz notes the subgraph as a special cluster subgraph. If supported, the layout engine will do the layout so that the nodes belonging to the cluster are drawn together , with

问题 I'm trying to use GraphViz to draw graphical models. However, I didn't find a way to make draw overlapping clusters. For example, how can I make "nodeA->nodeB" to lie inside both clusterA and clusterB? 回答1: AFAIK you can't. Clusters as described in the documentation: If the name of the subgraph begins with cluster, Graphviz notes the subgraph as a special cluster subgraph. If supported, the layout engine will do the layout so that the nodes belonging to the cluster are drawn together , with

问题 I've created a tree dump how described here: How can I dump an abstract syntax tree generated by gcc into a .dot file? for this dummy script: int fact(int n) { if (n<=1) { return 1; } return n * fact(n-1); } int main(void) { int a = 4; int res = fact(a); return res; } And the image what I've got: As I know gcc is not the best way to learn AST representation. But anyway it would be nice to understand what image's content means. Especially what % sign here means and a FREQ:0 statement? 回答1: The

问题 I've created a tree dump how described here: How can I dump an abstract syntax tree generated by gcc into a .dot file? for this dummy script: int fact(int n) { if (n<=1) { return 1; } return n * fact(n-1); } int main(void) { int a = 4; int res = fact(a); return res; } And the image what I've got: As I know gcc is not the best way to learn AST representation. But anyway it would be nice to understand what image's content means. Especially what % sign here means and a FREQ:0 statement? 回答1: The

问题 So I have installed the anytree package (after great effort; I had to add some environment variables on my system). Having done this I can use almost all functionalities of the anytree package - just not the one I want. I wish to use graphviz in conjunction with the anytree package in order to graph trees using the 'DotExporter' command. I have installed graphviz; its path is C:\Users\joel\Anaconda3_2\Lib\site-packages\graphviz, and I have also added the line of code 'from anytree.exporter

问题 I have the following simple digraph: digraph clientproxyserver { "Client" -> "Proxy" [ label="Request from Client" ]; "Proxy" -> "Server" [ label="Forwarded Request" ]; "Server" -> "Proxy" [ label="Response from Server" ]; "Proxy" -> "Client" [ label="Forwarded Response" ]; } Running this trough dot : dot -Grankdir=LR -Nshape=box -Nheight=1 -Tpng -ocps.png cps.gv I get the following result: What can I do to make the two bottom edges straight lines? 回答1: That's what usually the option splines