71–80 of 221 posts
One interesting thing is that graphviz can output to many formats, including SVG. This makes it great for websites, where one can later do things like later tweak the colours on the fly. e.g. https://harishnarayanan.org/writing/kubernetes-django/
Graphviz is for noobs. Try TikZ, aka the Gigachad of vector graphics. I spent more time creating TikZ diagrams than actually writing my whole MSc. thesis.
> Graphviz is for noobs. Try TikZ, aka the Gigachad of vector graphics. Maybe you are right, in today's decaying world. But any civilized person can see that tikz, latex and even graphviz are all ultimately hipster tools. Real men of course use pic and troff.
I once made a script which would go through each subdirectory, open every Excel file, and document all dependencies, and output to a GraphViz diagram. This enabled me to move a file and know which files would break, absolutely vital for making changes in that environment.
It wasn't beautiful - VBA checking properties of tables, pivot tables, examining embedded VBA code searching for the network share URI - but it did work.
For safety, I copied 200 GB from the network drive locally. 6 months later the guy in IT was curious why imaging my replacement machine took so long.
--
Last week I documented how money moves around my various bank accounts. I needed to make sure all the bills get paid even though I'm switching banks. A quick GraphViz diagram is proving to be really handy.
Earlier quoted context omitted.
You can put the group of nodes in a subgraph and apply the uniform style to the subgraph. In https://gitlab.com/kragen/bubbleos/-/tree/master/yeso#callin... I did that for example as follows in https://gitlab.com/kragen/bubbleos/-/blob/master/yeso/api-ty... : subgraph types { node [shape=square]; subgraph ints { node [label=int]; int bool fd u32in die stride; } long int s32 u8 u32 -> ypix ywin; ... Its expressivity i…
You only need a couple of line to plug in automatic m4 preprocessing in Makefile. And perhaps add a .SECONDARY line if you are debugging to prevent the intermediate .dot files from being deleted. %.dot: %.dot.m4 m4 $@ I use m4 to implement something akin to css classes, only a bit more powerful because you can do pseudo-subclassing. E.g. define(`base_node', `width=1.75, height=1.0, fontname="Menlo", fontsize=13') def…
node [width=1.75, height=1.0, fontname="Menlo"];
subgraph files {
node [shape=note];
tarball [label="foo.tar"];
subgraph importantfiles {
node [fontname="Menlo Italic"];
...
}
}
subgraph dirs {
node [shape=folder];
vardir [label="/var"];
subgraph importantdirs {
node [fontname="Menlo Italic"];
etcdir [label="/etc"];
}
}
See the diagram at https://niem.github.io/model/4.2/nc/ItemType/ . Hover over a term to see its definition. Click on a term to navigate to its diagram.
I'm going to hijack this thread to ask if anyone knows of a library that creates "hand drawn"-style sequence diagrams from code? I basically want this: https://bramp.github.io/js-sequence-diagrams/ -- but sadly, this one only seems to run inside a browser.
PlantUML supports this https://plantuml.com/handwritten Add this to any diagram to get the effect you want, skinparam handwritten true skinparam monochrome true Demo: https://tinyurl.com/ycdu7owa
I found a great use for Graphviz recently. I needed to implement a model that was created by a scientist with no programming experience outside of a Fortran class in the early 1980s. Meanwhile, I didn't have much knowledge of the subject matter or terminology. The model was described in a multipage Excel file and an accompanying PDF and I implemented it in Clojure. In order to help us communicate, I wrote a script th…
It's not free, however, though you can use the evaluation version indefinitely if you wanted to make your own graphs for personal use.
Earlier quoted context omitted.
That's one of its main uses. One thing it does not do (or I don't know how) and graphviz does, though, is arranging nodes intelligently so as to minimize clutter and edge distances. That's one of the nice things in graphviz.
> One thing it does not do (or I don't know how) and graphviz does, though, is arranging nodes intelligently That's exactly what "graph drawing" means [0]. Can tikz choose the position of the vertices itself or you have to specify the positions yourself? If it is you who chooses the positions, then tikz does not do "graph drawing". [0] https://en.wikipedia.org/wiki/Graph_drawing