Jutta

measurement of the length of a curve

6 posts in this topic

hi there,

how  to get the exact length of a curve 

or the circumference of a circle

in affinity designer?

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As far as i know this is not possible in designer.


intel core i5,  16GB 128Gb ssd win10 Pro Huion new 1060plus.

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11 minutes ago, dutchshader said:

As far as i know this is not possible in designer.

 

No, it isn't possible yet. Perimeter and area measurements have been requested a few times, but at the moment we have to use external tools.

 

Windows users can export a drawing to PDF and use the measurement tools in PDF-XChange Viewer to determine the length of any curve (or the area bounded by any closed curve).

 


Alfred online2long.gif
Affinity Designer (1.6.4.104) • Affinity Photo (1.6.4.104) • Windows 10 Home (4th gen Core i3 CPU)

Affinity Photo for iPad 1.6.7.76 iOS 11.3 (iPad Air 2)

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5 hours ago, dutchshader said:

As far as i know this is not possible in designer.

For the circumference of a circle you could do this (inelegantly) as follows:

1. Select the circle & note its width or height in the Transform panel.

2. Using (for example) the Pen Tool in Line mode, draw a horizontal line. (Use snapping to make sure it is perfectly horizontal.)

3. In the Transform panel use the expression pi*<width or height of the circle> to change the width of the line.

4. This width is the circumference of the circle.

 

Of course, this is of very little practical value but I did use it once to check the movement of a wheel along a road. In the attached wheel roll test.afdesign, each ellipse is 200 x 200 px, so the 'baseline' road is 628.32 px. Moving copies of the ellipse by 628.32/4 horizontal increments & rotating them by -90° increments gave me the template I needed for the project.

firstdefence likes this

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5 minutes ago, R C-R said:

In the attached wheel roll test.afdesign, each ellipse is 200 x 200 px, so the 'baseline' road is 628.32 px.

 

Easy as pi! :D

 

firstdefence likes this

Alfred online2long.gif
Affinity Designer (1.6.4.104) • Affinity Photo (1.6.4.104) • Windows 10 Home (4th gen Core i3 CPU)

Affinity Photo for iPad 1.6.7.76 iOS 11.3 (iPad Air 2)

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Would be cool to have this feature:

 

5ad5970eb216a_ScreenShot2018-04-17at07_40_25.png.ee56ff68c2c2fddde61c17edcbc1905b.png


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