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Styling mermaid diagrams with DiagrammeR Ask Question. Asked 4 years, 11 months ago. Active 4 years, 11 months ago. Viewed 5k times. DiagrammeR g. Is there a way in the mermaid code to break up long lines to make it more readable, like e.
Active Oldest Votes. Ben Ben Thanks, but that's exactly what I would like to avoid doing " I was hoping one could specify e.
Yes, I see. I use tikz in Rnw files to get that kind of customization. Not sure that DiagrammeR exposes the arguments needed for what you're after. Sign up or log in Sign up using Google.
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Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'm using mermaid diagrams in my Rmd reports compiled with Rstudio. And possibly also to change its size? Learn more. Asked 1 year, 5 months ago. Active 3 months ago. Viewed times.
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Besides, this is well supported in a number of publishing systems and editors. Mermaid can be rendered directly from those supported editors. Finally, you actually do not need any of those editors or plugged in systems, but can also be directly used. Online mermaid editor. This is open source program and you feel free to contribute in documentations or coding.
Following are the links if you are interested in documentation or coding. Mermaid supports flowchart, sequence diagrams and gantt chart. Sequence diagram is used for software development and normally is not required or used in normal other businesses so we will focus on flowchart and gantt diagram in this article.
First part is graph which will hold the entire information about the diagram it starts with the word graph followed by two letters that denotes the direction of the arrows of the picture. Nodes or shapes are the basics of a diagram. Mermaid supports a lot of shapes which can be symbolised in simple texts.
The basics shape is a rectangle and that is the default one. You do not need to mention about the shape if you want to have a rectangular shape. Link can be open so no direction. The main graph can have child those are called subgraph and subgraph can have known and links connecting inside or outside of the subgraph path within the main graph here is an example.
It is possible to apply specific styles such as a thicker border or a different background color to a node. Gantt chart is more popular in project management practices. This creates a visual representation of task with their dependencies. These also shows the tasks which are in the critical path.
Mermaid can be used conveniently to create visually stunning gantt chart. Gantt chart starts with the reserved word or keyword " gantt " in Mermaid. You will notice that we will be using few reserved words in Gantt chart preparation. Reserved words or keywords are the words which has a special meaning or interpretation by Mermaid when placed in specific places or positions.
Next, we have to use another reserved word dateFormatto let mermaid understand the date format used in the diagram. Next, we have to define the title of a graph and this also starts with a a reserved word called title.
It follows the actual title of the graph a diagram. After this section starts. Section can be thought about horizontal swim Lane or line where a group of task would be listed down.GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community. Already on GitHub? Sign in to your account. In the CLI or when using the API, the flowchart graphs are always width px, so when having somewhat complex charts the letters and boxes get small and blurry.
Online editor don't happen to have this problem, showing them full size. What version do you run? Also what is the width of the surrounding element? Perhaps there is not room for your graph which possibly could could explain the smaller width.
I'm generating it from the command line I was using it before on GitBook using gitbook-plugin-mermaid but normal images are shown with their real size or its width adjusted to the book width, so I don't think the problem would be here As you can see, the image is px width and you can hardly read the text labels or see the lines patterns I would like to set a max-width and max-height. I have a fluid design responsiveso widescreen have much more space.
Also, I think the borders width should be removed so image can adjust better and don't waste space The easy fix is to not use maxWidth in the mermaid settings. In your case this would mean a width of around px. With maxWidth set mermaid tries to make the flowchart no wider then the surrounding element. If it is smaller it stays smaller otherwise small flowcharts can look a bit big I am not sure how the plugin generates the images.
If it is using the api in the you use the flowchart config settings to turn this of as outlined below:. I can confirm that this fix it :- Lines patterns are not shown, but at least text is now readable :-P. Well, this could be done better with another approach, having elements with a fixed size and getting the graph as big as needed instead of the inverse having the graph a fixed size and being elements as big as possible.
It works by crafting and ad-hoc html page injecting the graph description and rendering it with PhantomJS. I'm glad it helped! Thank you! Is the CLI already fixed?
I tried to generate a more complex diagram from 0. Many aspects, default config for flowcharts using CLI is to not use maxWidth and no way to set it. Will fix this in two ways. Skip to content. Dismiss Join GitHub today GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
Sign up.Mscgen aims to provide a simple text language that is clear to create, edit and understand, which can also be transformed into common image formats for display or printing. This program and the language it parses have been inspired by Graphviz Dotwhich provides a really good way to document State Transition Diagrams, data structures and directed graphs. Unlike Graphviz, this program does no clever layout operations or spline routing as this is not needed for MSCs, and so was much simpler to implement.
Doxygen version 1. The following are examples of the raw input code and output that is generated, in this case as a PNG. The general format for a message sequence chart is given by the following annotated example. It should be noted that whitespace and newlines are ignored by the input parser. The syntax is very simple. The important part to notice is that the first lines give the message sequence chart options and entities, with each of the following lines describing a message arc.
The following table shows each of the possible message arc types, including the so-called 'special' arcs that do not show a relation between entities but instead describe something horizontally on the chart. The box types allow state and condition boxes to be added. In the source these are still represented as a relation between entities, but in this case the box is made to span from the source to the destination entitiy.
In addition to the arc types, a small number of attributes can be given to each message arc or entity. These attributes are placed in square brackets as a coma separated immediately after the entity name or message arc to which the attribute is to be attached:.
The following table describes all of the possible attributes and their meaning, noting that each of the attributes can be specified for the special ' Colours can be specified either as RGB colour codes using a prefix as per HTML markup, or can use one of some predefined colour names as given in the following examples. Finally options can be added to the input file to control various aspects of the generated image.
At present only a few options are supported and must be given at the top of the input file as in the following example. The allowable options are described in the table. The grammar for the mscgen language can be seen here. This covers use of the program sources but places no restriction on the usage of the tool itself or the diagrams it produces. Mscgen can be built under Linux, Cygwin, and as a native Win32 application through Cygwin with the wonderful -mno-cygwin compile option.
Since version 0. Others have previously reported success building the sources SunOS 5. The current version is 0. The latest version of the software can be downloaded from the following links:. You can either install these RPMs directly, or you can install a repository for getting mscgen and future updates:.
Fedora RPMs are signed with my public keyand yum should prompt you to import this key once the repo is installed. The development sources are also available on Google Codeand can be browsed online or retrieved using anonymous SVN access. New releases are announced via a Google Groups announcement mailing list. This carries only release announcements and you can subscribe through the following form: Subscribe to mscgen-announce Email: Bugs Bugs, patches, and suggestions can either be emailed directly to meor entered into the Google Code issue tracker.
Since this is hobby project it can take a long time for me to respond, but I try to review every patch and respond to all emails. Initially I made custom modifications to Doxygen such that it could call other tools in response to a new command keyword.Graphviz support is an integral part of the DiagrammeR package. Graphviz consists of a graph description language called the DOT language and it also comprises various tools that can process the DOT language.
DOT is highly customizable and it allows you to control line colors, arrow shapes, node shapes, and many other layout features. For Graphviz graphs, DiagrammeR uses the processing function called grViz. What you pass into grViz is a valid graph specification in the DOT language.
The DOT graph description can either be delivered to grViz in the form of a string, a reference to a Graphviz file with a. All of the code examples provided in later sections call the grViz function in an R script and pass in a graph description as a string. It is important to consider that strings in R cannot contain any unescaped double-quote characters.
However, the grViz function allows for single-quote characters in their place. As a further convenience, when the DOT graph description is supplied as a file e. In very recent builds of RStudiothe use of an external text file with the. The Graphviz graph specification must begin with a directive stating whether a directed graph digraph or an undirected graph graph is desired. Semantically, this indicates whether or not there is a natural direction from one of the edge's nodes to the other.
Optionally, a graph may also be described as strict. This forbids the creation of multi-edges i. For undirected graphs, there can be at most one edge connected to the same two nodes. Subsequent edge statements using the same two nodes will identify the edge with the previously defined one and apply any attributes given in the edge statement. Graph statements allow for attributes to be set for all components of the graph. Node statements define and provide attributes for graph nodes.
Edge statements specify the edge operations between nodes and they supply attributes to the edges. Within these statements follow statement lists.
Syntax guidance for Markdown usage in Wiki
Thus for a node statement, a list of nodes is expected.I have Grafana to thank for introducing me to Mermaid diagrams - one day at work a new Diagram widget appeared and naturally I had to explore further. What I found amazed me. If you are a fan of diagramming, markdown, and CLI tools - and have not heard of Mermaidyou are in for a treat! Mostly I find myself making use of the basic flowchart abilities.
You can quickly conjure up something like this in a couple of minutes:. Of course you can use slightly more meaningful names, rather than A, B, C etc. Flowcharts can also include subgraphs which become very helpful when making larger diagrams.
For example, see how the something flowchart above changes when subgraphs are introduced:. You may also find that moving definitions in and out of subgraphs can really shuffle things around, for what seemed like a subtle change.
Still pretty messy towards the Cloud Originsbut pretty useful overall for conveying main traffic flows when explaining how parts of the website were served during our migration from The Datacenters to The Cloud…. Bonus points for you if you noticed this already in the Mermaid Diagrams Are Awesome flowchart at the start of this post. I started off thinking the above would seem like a weird abuse of sequence diagrams to those who use them regularly, but a little reading up on them led me to find the following, which I guess explains why it felt like a good weird as I wrote it:.
Some more notes from Creately: here and here.
Mermaid can also render Gantt charts, but they definitely look like the least enjoyable to write. See details here. It just gets better: there is even a CLI tool!
All sorts of possibilities exist due to there being a CLI tool here… for example you could create a more rudimentary version of the Grafana-Mermaid integration. Instead of elements of a flowchart being tied to a timeseries metric, a script could determine adjustments to the mermaid code change a solid line to a dashed line or colour a node orange instead of green to represent link degradation for example and regenerate an output.
And this is a really cool talk - Running a Power Plant with Grafana - lots of interesting panel development, a few of which are public :. If you use vscodethere is a plugin you might want to try.Development of Bone