Measure along curve

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Measure along curve

Postby dsherburn » Mon Mar 11, 2019 5:09 pm

I've created a large curve (Bezier curve, not an arc). Is there anyway to determine where an 8' point will be on that curve. I've used the measuring tool and it will give me lengths, but being the curve is made up of so many segments (the tool just measures segments not the overall curve) it's hard to see where exactly 8' will land along the curve.
Thanks! Dan
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Re: Measure along curve

Postby adze_cnc » Mon Mar 11, 2019 6:12 pm

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Re: Measure along curve

Postby garylmast » Mon Mar 11, 2019 11:59 pm

Try grouping the segments together, then measure it. Another way, draw a line at one end, then offset it 8'.
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Re: Measure along curve

Postby highpockets » Tue Mar 12, 2019 12:45 am

Well this may not be perfect, but it should get you close.... It would be nice to be able to hold down the shift key on the measurement tool and have it add up the segments as you click on them.

Hope this helps....

Image 376.png
Starting curved shape

Image 377.png
Create a small circle.

Image 378.png
Using the Copy along vectors tool.

Image 379.png
Select the circle then the curved vector. Set the Distance between copies to 1" (or 1' in your case), make sure to uncheck Force even spacing.

Image 380.png
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Re: Measure along curve

Postby mtylerfl » Tue Mar 12, 2019 1:37 am

Very creative method, John!
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Re: Measure along curve

Postby Adrian » Tue Mar 12, 2019 8:55 am

highpockets wrote: It would be nice to be able to hold down the shift key on the measurement tool and have it add up the segments as you click on them.


That's what the Perimeter value on the Measure tool is in this case. The sum of all the segments.
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Re: Measure along curve

Postby highpockets » Tue Mar 12, 2019 9:05 am

Adrian wrote:
highpockets wrote: It would be nice to be able to hold down the shift key on the measurement tool and have it add up the segments as you click on them.


That's what the Perimeter value on the Measure tool is in this case. The sum of all the segments.


Yes, but if you don't want the full Perimeter as in this case, you'd have to add each segment length up on paper to find a length close to 8'.
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Re: Measure along curve

Postby Mark » Tue Mar 12, 2019 9:11 am

>>hold down the shift key on the measurement tool and have it add up the segments as you click on them.

Depending on the number of segments, in most cases, it would probably be quicker to cut the vector, (once for an open vector, or twice for an closed vector).
Use the Perimeter value on the form, then Ctrl+z (once or twice) to re-close the vector.

Cheers,

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Re: Measure along curve

Postby slsmallcraft » Thu Mar 14, 2019 3:53 pm

(from dsherburn, I've changed the user name...)
Highpockets gave me a good, quick, practical fix. I put circles every 12" along the curve and I can see exactly where the 8' sheet will end when wrapping. Perfect! thank you...
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