Is it possible to use straight line to link the nodes?

[hqgu]

Proposal

I am an academic researcher who uses Mermaid to draw flowcharts for academic journals. However, academic journals require straight lines to connect the nodes, which is not possible with any of the current Mermaid themes. If possible, I would like to see this feature developed. Thank you.

Colors

black lines with a white background would be enough.

Screenshots

Screenshots from some journals:

[sidharthv96]

Please try using flowchart-elk, instead of graph or flowchart. It will draw straight lines.

[shravanngoswamii]

How can I create something exactly like this in mermaid, I did try flowchart-elk, but still I am not able to get straight lines to link nodes and also is there any way to get oval shape??

Also, I want the labels on node links outside the lines!

[kiranbhadani]

I am trying to generate flow chart with elk for straight lines, it does not work with v11.4.0, any idea how to fix?

<script type="module">
     import mermaid from "https://cdn.jsdelivr.net/npm/[email protected]/+esm";
     import elkLayouts from 'https://cdn.jsdelivr.net/npm/@mermaid-js/[email protected]/+esm';

     mermaid.registerLayoutLoaders(elkLayouts);
 
     mermaid.initialize({
       theme: 'neutral',
   	layout: 'elk',
   	config:{layout: 'elk'},
   	flowchart:{defaultRenderer: 'elk'},
       logLevel: 3,
       securityLevel: 'loose',
       block: {
         padding: 10,
       },
     });
   </script>