# Help with Combining Curves needed

## Recommended Posts

Hello

Am trying to learn and achieve a logo copy by drawing curves and am running into issues.

1. Is there a better way to achieve this logo trace ? the figure 1 is what am trying to achieve and have drawn curves to match the underlying drawing. I propose to subtract curves from the underlying light grey circle to get solid bodies.

2.  When I go and expand the stroke to add/combine the curves for subtraction - I get the figure 2 issue with uneven boundaries. Can someone help me with combining the curves or show a better way to achieve the result ?

thanks

##### Share on other sites

Hi Moksha,

If possible could you provide the file so I can try a few things at my end?

Thanks

Callum

##### Share on other sites

Hello Moksha,

If you don't want to use the pen in particular to draw this logo, you can follow the video posted by @firstdefence on September 13:

##### Share on other sites

Hello Callum,

Here's a copy of the project.

I've created one vector logo - however it isn't a perfect circle - so was trying to recreate it again.

thanks

LogoCreate.afdesign

##### Share on other sites

Think I've got it.

1. Make a circle and duplicate it twice (so now you should have 3 circles) These are for boolean work one is to be able to keep everything centred.
2. Created an oval ellipse that roughly matched the longer curved edge of the green shape, this turns out to be approximately 18º off vertical. Now we have most of the pieces to make the "claw" shapes.
3. I selected a Circle and the Oval and Boolean subtracted the Oval from the Circle, you should be left with something that looks like this...
4. Make sure the Rotation centre is aligned to the circle underneath, you'll find its slightly off so reposition it.
5. Duplicate the shape and rotate it 120º You should have something like this
6. While the shape is still selected, go to the Node Tool (A) and delete the node shown in the image below

7. It should now look like this
8. Boolean subtract the green shape from the grey shape, you might have a few rogue nodes just highlight them and delete them.
9. Select the Move Tool (V) reposition the shape rotation centre to match the centre of the circle, duplicate the shape and rotate 120º Press cmd + J  (Ctrl + J on windows to create the third shape)
10. Now select All three shapes, add a white stroke centre aligned and colour the three shapes to suit.

iMac 27" Late 2015 Fully Loaded, iMac 27" Mid 2011 both running High Sierra 10.13.6 - Affinity Designer/Photo & Publisher - Illustrator CC, Inkscape, Blender, Sketchup, Pepakura Designer, MTC, Pixelmator & Pixelmator Pro + more... XP-Pen Artist-22E, - iPad Pro 12.9

##### Share on other sites

Wow

Reglico - great link by the way.

Using the video link - I got to

Close but not quite

firstdefence - Looks like you're mighty close - Wow - thanks - just wondering if we can get the curvature like the pic below - the ref

Really loving the support

##### Share on other sites

Hey, moksha,

Here's my entirely crude hand drawn approximation. Was messing around trying to figure out the original image geometry, and got frustrated. Figured I could do it faster and near good enough by hand. File saved w. history, but the history is incomplete. Hope it helps.

iMac 27" Retina, c. 2015: OS X 10.11.5: 3.3 GHz I c-5: 32 Gb,  AMD Radeon R9 M290 2048 Mb

iPad 12.9" Retina, iOS 10, 512 Gb, Apple pencil

Huion WH1409 tablet

##### Share on other sites
4 minutes ago, gdenby said:

Was messing around trying to figure out the original image geometry, and got frustrated

I got to that point, so went and watched TV and came back to it with fresh eyes.

iMac 27" Late 2015 Fully Loaded, iMac 27" Mid 2011 both running High Sierra 10.13.6 - Affinity Designer/Photo & Publisher - Illustrator CC, Inkscape, Blender, Sketchup, Pepakura Designer, MTC, Pixelmator & Pixelmator Pro + more... XP-Pen Artist-22E, - iPad Pro 12.9

##### Share on other sites

Maybe something like this?

here's a file for you to look at

I guess the problem with it is that you want to do it geometrically, but the reference image isn't. To get those type of curves and squished ellipse shape I say you have to do the curves by eye.

Edited by ouki
Spelling derp

##### Share on other sites

Thanks Ouki - Am assuming you drew the curves with pen tool.

So you expanded the curved arcs and subtracted from the invisible white circle ?

##### Share on other sites

@moksha I think the guys are onto a good process! I just think the geometry needed is something more like a tear drop ... .

##### Share on other sites

Yup pretty much. You can do it with geometry, but I think you’ll get a more exact copy with pen. Depending on the intention of the designer, perfect circles are usually optically adjusted and slightly squished like in the reference image you linked or like the O’s in geometric fonts.

Either way all options mentioned here are good for learning some of AD’s tools.

##### Share on other sites
26 minutes ago, JimmyJack said:

@moksha I think the guys are onto a good process! I just think the geometry needed is something more like a tear drop ... .

Thanks Jimmy Jack - Yea I had tried with Tear drop yesterday but was struggling with the process - With the replies today, however - looks like am going to succeed

Thanks again for the support and guidance !

##### Share on other sites

Not really what the OP is looking for, but just for giggles, I created a partially hand drawn Symbols swirl.afdesign version using three instances of a shape originally made from a 120° donut shape. Editing the shape of any of the curve instances changes all of them, creating some interesting & always geometric patterns.

Affinity Photo 1.8.3, Affinity Designer 1.8.3, Affinity Publisher 1.8.3; macOS Mojave 10.14.6 iMac (27-inch, Late 2012); 2.9GHz i5 CPU; NVIDIA GeForce GTX 660M; 8GB RAM
Affinity Photo

## 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.

×   Pasted as rich text.   Paste as plain text instead

Only 75 emoji are allowed.

×   Your previous content has been restored.   Clear editor

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

×

×

• #### Affinity

×
• Create New...