Jump to content
You must now use your email address to sign in [click for more info] ×

Geometry tools slightly distort shapes as well as slicing them


Recommended Posts

3 hours ago, GabrielM said:

This is not a bug. Those are not perfect geometric circles, but a curve with 4 bezier nodes.

As I understand it, the developers hope to add ellipses/circles defined by their actual geometry (radii, I suppose) at some point, but there is no ETA for that.

All 3 1.10.8, & all 3 V2.4.1 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7
Affinity Photo 
1.10.8; Affinity Designer 1.108; & all 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7

Link to comment
Share on other sites

7 hours ago, GabrielM said:

Hi @tristanbay,

Sorry for the delayed reply. 

This is not a bug. Those are not perfect geometric circles, but a curve with 4 bezier nodes. When dividing, it cannot be 100% accurate - You are zoomed in to 75000%, so this is expected.

Thanks,

Gabe. 

This doesn't make complete sense, though, because a regular circle looks the exact same in AD as a circle that has just been converted to curves. If a circle can be perfectly translated to curves in AD, then why can't it do a shape division correctly? Does it make it that much more complex to calculate so it just approximates it?

Btw, Inkscape seems to do the exact same thing except it's even less accurate (it's clearly visible at less than 10000% zoom I believe)

Link to comment
Share on other sites

1 hour ago, tristanbay said:

You are zoomed in to 75000%

1 hour ago, tristanbay said:

a regular circle looks the exact same

"This doesn't make complete sense" to talk about "look" concerning geometry + precision @ 75.000% zoom.

macOS 10.14.6 | MacBookPro Retina 15" | Eizo 27" | Affinity V1

Link to comment
Share on other sites

1 hour ago, tristanbay said:

This doesn't make complete sense, though, because a regular circle looks the exact same in AD as a circle that has just been converted to curves.

But it is not a perfect circle to begin with, just a close approximation of one using Bezier curves. See for example is-it-possible-to-generate-a-circle-with-a-bezier-curve for much more about the math.

All 3 1.10.8, & all 3 V2.4.1 Mac apps; 2020 iMac 27"; 3.8GHz i7, Radeon Pro 5700, 32GB RAM; macOS 10.15.7
Affinity Photo 
1.10.8; Affinity Designer 1.108; & all 3 V2 apps for iPad; 6th Generation iPad 32 GB; Apple Pencil; iPadOS 15.7

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

Loading...
×
×
  • Create New...

Important Information

Terms of Use | Privacy Policy | Guidelines | We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.