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+--- Thread: Virtual Drafting Compass (/Thread-Virtual-Drafting-Compass)
Virtual Drafting Compass - Quartz66 - 04-16-2018
Is there any plug-in etc. for a virtual drafting compass that can be used in Gimp?
Thanks
RE: Virtual Drafting Compass - rich2005 - 04-16-2018
You will have to give more details of what you see as a 'virtual drafting compass'
There is this plugin http://registry.gimp.org/node/28413
and an associated page https://brendanscott.wordpress.com/2013/08/17/automatic-perspective-lines-in-gimp/
and if you can figure that out, that is more than I can.
What sort of drawing are you planning? I somtimes use pdf graphpaper as an overlay
examples ISO https://i.imgur.com/4Pb9gNM.jpg perspective https://i.imgur.com/Xtnt7P7.jpg but to be honest it is a bit cumbersome to set up
RE: Virtual Drafting Compass - Blighty - 04-16-2018
(04-16-2018, 04:22 PM)Quartz66 Wrote: Is there any plug-in etc. for a virtual drafting compass that can be used in Gimp?
Are you wanting to draw an arc? (a portion of a circle)
RE: Virtual Drafting Compass - Quartz66 - 04-16-2018
Thanks for the replies. I am going to check out all the links. I do black and white geometric designs like copies of crop circles or sacred geometry designs etc.
RE: Virtual Drafting Compass - Ofnuts - 04-16-2018
There are amny scripts/plugins to draw shapes, including my own ofn-path-to-shape (which makes drawing concentric circles very easy).
Download here: http://sourceforge.net/projects/gimp-path-tools/files/scripts/
(HTML doc included in the ZIP, check it out for an illustration of some of the capabilities)
Demo/talk here: https://www.gimp-forum.net/Thread-ofn-path-to-shape
RE: Virtual Drafting Compass - rich2005 - 04-17-2018
@Quartz66 Ignore my previous post, too much using CAD application yesterday and thinking X - Y - Z coordinates.
As well as Ofnuts plugin a couple of others, both using paths
An old script but will get the shapes out onto your canvas http://registry.gimp.org/node/59
More recent: http://www.arakne.es/en/programming/python/gimp-plugin-shape-creator-v8/
The great thing about paths is they can be scaled and moved relatively easily. Downside is, once 'painted' (stroked) the painted bit is fixed and further editing usually involved erasing.
For geometric design you might want to consider the vector application Inkscape, do the basics in that, then finish off in Gimp.
RE: Virtual Drafting Compass - Quartz66 - 04-18-2018
Thanks rich2005. What I had in mind was something like a program called Robocompass, but with a compass and straight edge that could be snapped to grid for ease of use. It would be similar to using a real compass and straight edge.
Thanks
(04-17-2018, 07:26 AM)rich2005 Wrote: @Quartz66 Ignore my previous post, too much using CAD application yesterday and thinking X - Y - Z coordinates.
As well as Ofnuts plugin a couple of others, both using paths
An old script but will get the shapes out onto your canvas http://registry.gimp.org/node/59
More recent: http://www.arakne.es/en/programming/python/gimp-plugin-shape-creator-v8/
The great thing about paths is they can be scaled and moved relatively easily. Downside is, once 'painted' (stroked) the painted bit is fixed and further editing usually involved erasing.
For geometric design you might want to consider the vector application Inkscape, do the basics in that, then finish off in Gimp.
I found this which is close to what I had in mind. https://www.geogebra.org/m/drQBGMQn
RE: Virtual Drafting Compass - rich2005 - 04-18-2018
The only one in Gimp like that, is a very-very old plugin which dates back to Gimp 1.2 Somewhat crude in use, can be a bit flaky in Gimp 2.8.22
Gfig https://docs.gimp.org/en/plug-in-gfig.html Filters -> Render ->Gfig
looks like this: https://i.imgur.com/53dvEqO.jpg
You might be better using Inkscape http://www.inkscape.org for basic shapes and finishing off in Gimp. Downside, it has as big a learning curve as Gimp.
looks like this: https://i.imgur.com/ep76Bhs.jpg
RE: Virtual Drafting Compass - Quartz66 - 04-18-2018
(04-18-2018, 07:30 AM)rich2005 Wrote: The only one in Gimp like that, is a very-very old plugin which dates back to Gimp 1.2 Somewhat crude in use, can be a bit flaky in Gimp 2.8.22
Gfig https://docs.gimp.org/en/plug-in-gfig.html Filters -> Render ->Gfig
looks like this: https://i.imgur.com/53dvEqO.jpg
You might be better using Inkscape http://www.inkscape.org for basic shapes and finishing off in Gimp. Downside, it has as big a learning curve as Gimp.
looks like this: https://i.imgur.com/ep76Bhs.jpg
Thanks. Yeah, I use Inkscape to vectorize my images.