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Posted (edited)

Hi all,

 

I am using the whole suit of Affinity desktop currently,

I would know how to center my layer between two curve.
I know I can align them with the alignment tool but it seems the alignment tool take account of the whole box to makes its calculus.

How can I ensure only the curve line drawed is take into account to calculate the alignment to operate?

You will find more informations in the joined picture.

thanks.

curve_centering.png

Edited by HocoH

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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 B|  

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Posted (edited)

thanks @firstdefence it works great when the two curve doesn't overflowing.

But what if one of the two curves overflow the other?

So far I think I will cut one the two curve to create sample that doesn't overflow the other while maintaining the coordinate information to center the third element. Maybe there is an other way to do it that you would recommend?

More infos in the joined files.

centering_element_overflowing_curve.png

centering_element_overflowing_curve.afdesign

Edited by HocoH

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I think you also need to consider where you mean by “the centre” of the two curves.
For instance, in my attached image, on the left, each rectangle is rotated about the same point. The one with the red line at the centre is tangential(ish) to the red curve, the one with the blue line at the centre is tangential(ish) to the blue curve, and the one with the purple line at the centre is neither.
As you can see on the right, when the rectangles are resized to fit between the lines, the centres of the ‘centre-lines’ are at different positions, meaning that they have different ‘centres’. So which ‘centre’ is correct?

Annotation 2020-05-17 093527.png

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