Gephi forums

Posted: **21 May 2018 15:11**

Hi,

I am testing some PNG renderings with Gephi Toolkit 0.9.2

Within the same exact code:

* if I have

      model.getProperties.putValue(PreviewProperty.DIRECTED, true)
      model.getProperties.putValue(PreviewProperty.ARROW_SIZE, 100.0f)
      model.getProperties.putValue(PreviewProperty.EDGE_CURVED, false)

the arrows are perfectly shown in the exported PNG image file

* if I change the last line to (setting EDGE_CURVED to true)

Code: Select all

      model.getProperties.putValue(PreviewProperty.EDGE_CURVED, true)

the arrows are not displayed.

Any idea why this is happening?

Thank you,

Mario

Posted: **21 May 2018 17:29**

Hi Mario,

Arrows are not supported for curved lines.

Posted: **21 May 2018 22:45**

Hi, thank you for your quick reply.

A few questions:

1. It is just lack of priority or there is any fundamental problem against it?

2. If not the latter, how could arrows for curved lines enter in the future roadmap?
I would love to render graphs like this, they need curved lines but are also directed

3. Is there any place in the documentation where it would make sense to mention this current lack of support?

Best,

Mario

Posted: **22 May 2018 11:45**

It will probably be supported in some future, as I am (slowly) working on a new renderer.

Anyway, the clockwise of the curve is the direction of the edge in curved edges, so arrows are not necessary.

Gephi forums

Arrows with curved edges

Arrows with curved edges

Re: Arrows with curved edges

Re: Arrows with curved edges

Re: Arrows with curved edges