can this be used with org-mode src-code blocks

[uliw]

Would it be difficult to enable org-mode src-code block support similar to plantuml?

[andorsk]

I don't think it would be that difficult. https://github.com/arnm/ob-mermaid/blob/master/ob-mermaid.el is an example of this working. We can put it on the feature map.

[uliw]

Happy to help testing

[andorsk]

@uliw it actually might be already supported 😆

Can you check if this works for you and is sufficient for your use case?

[uliw]

it mostly works! I get the following error:

/bin/bash: line 1: ~/.local/bin/d2: No such file or directory

even so

$ ls -al  ~/.local/bin/d2
-rwxr-xr-x 1 user user 38493010 Jan 11 14:14 /home/uliw/.local/bin/d2

shows that the file is there (and calling it directly is working ok).

Setting d2 location explicitly resolved the issue.

Some practicalities:

• depending on the input file, the png can be rather large, which completely bogs down the org buffer (probably a bug in org). Org-mode allows to set a rendering size via #+attr_org: width: 300. Is there a way to add this line in front of the image?
• Is there a way to specify the layout engine in the src block arguments?

[uliw]

The image size problem can be circumvented by setting this in the startup file

(setq org-image-actual-width (list 550))

Which will apply the above value unless another value is set for given image

[andorsk]

Hey @uliw , thanks1 re: the

it mostly works! I get the following error:

/bin/bash: line 1: ~/.local/bin/d2: No such file or directory

even so

$ ls -al  ~/.local/bin/d2
-rwxr-xr-x 1 user user 38493010 Jan 11 14:14 /home/uliw/.local/bin/d2

shows that the file is there (and calling it directly is working ok).

Setting d2 location explicitly resolved the issue.

Some practicalities:

• depending on the input file, the png can be rather large, which completely bogs down the org buffer (probably a bug in org). Org-mode allows to set a rendering size via #+attr_org: width: 300. Is there a way to add this line in front of the image?
• Is there a way to specify the layout engine in the src block arguments?

yea...hmm...maybe the "~" is not resolving correctly?

Re: the width, yea...there are options we can add. I need to check the d2 apis to see if there is a way to do it via the cli. If so, we can add another arg, :width which would resolve that.

[paskn]

Hi! There's https://github.com/xcapaldi/ob-d2 that helps rendering d2 in org-mode.

Here's a hack I use to control size of an image while exporting to LaTeX that might help you automate #+attr_org:

Put this somewhere at the beginning of the file:

#+NAME: attr_wrap
#+BEGIN_SRC sh :var data="" :var width="\\textwidth" height="200" :results output :exports none
  echo "#+ATTR_LATEX: :width $width :height $height"
  echo "$data"
#+END_SRC

Example of usage:

#+BEGIN_SRC d2 :file complex.png :post attr_wrap(width=200, height=500, data=*this*) :results drawer
clouds: {
  aws: {
    load_balancer -> api
    api -> db
  }
  gcloud: {
    auth -> db
  }

  gcloud -> aws
}
#+END_SRC

#+RESULTS:
:results:
#+ATTR_LATEX: :width 200 :height 500
[[file:complex.png]]
:end: