Is there a plugin that can create shapes from the center out?

[Mrwhitepantz]

Pretty much just want to be able to make a circle by clicking for the center and dragging out to the radius that I need, rather than corner to corner. Thanks.

[BoltBait]

That would be awesome, but it is not how the circle works (at least for now).

However, what you can do is draw a circle and before committing it to the canvas, you can adjust the size and placement of that circle.

[Mrwhitepantz]

No dice huh? Thank you though!

[dipstick]

Seriously.........is that a deal breaker for you? You do know that this is a free tool, don't you?

[MJW]

The problem is that unless the plugin creates its own canvas (essentially creating an independent application that sends its final result to PDN), it can't know anything about the mouse position. Not only are plugins that create their own canvases more difficult to write, they also have their own major problems. In particular, they don't show the current result in the context of the other visible layers. I believe it would be fairly easy to write a plugin that set the circle's center with a pan control, and set the radius with a slider. I'm kind of surprised there isn't something like that, but I couldn't find it.

 

EDIT: One difficulty would be marking the center during the creation process -- which seems desirable -- but not marking it in the final render pass. Currently, that can't be (legally) done with IndirectUI. The user could be required to manually switch off the center mark. That's rather ugly, but a mistake would be easily cured by Undoing and rerunning the plugin, this time remembering to switch off the center.

Edited June 19, 2016 by MJW

[Red ochre]

 

I believe it would be fairly easy to write a plugin that set the circle's center with a pan control, and set the radius with a slider. I'm kind of surprised there isn't something like that, but I couldn't find it.

My 'Squirkle' plugin does that (not using GDI+ ellipse, just the equation of a circle).

http://forums.getpaint.net/index.php?/topic/23194-squirkle/

I think the O.P. is really after a change in the behaviour of Pdn. And as you say, there is no perfect plugin solution to this.

[MJW]

Sorry Red ochre! When looking for circle-drawing plugins, I didn't think of Squirkle (which is quite a fun and useful  plugin).