Add Points uniformly to Circular Arc

sidora shared this question 6 years ago
Answered

I would like to add points on a circular arc with an equal distance (in degrees).


For example if i have a 90 degree arc, and split into 9. It would add a point every 10 degrees.


Is theres an easy way to do this?


Thanks,

Comments (10)

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1

hello

CircularArc[A, B, C]

Sequence[Rotate[B, k, A], k, 0°, Angle[B, A, C], 10°]


saludos

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1

This only seems to work when A is at [0, 0].


Also the points spawns really far from the arc. Is there a way to make them closer?


Thanks,

photo
1

This only seems to work when A is at [0, 0].

Also the points spawns really far from the arc. Is there a way to make them closer?


Hi, are you sure that you really used the right codes done by mathmagic ? It works fine at home for all position for A.

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"I create an arc(abc) then i input the formula at the bottom".


The first point of the sequence doesnt cross a A-C line. And the last point of the sequence doesnt cross a A-B line.

It only does if A is at origin on my side.

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What i would really like is to divide an arc into equal sections.


So lets say i have an arc of 175 degrees and want to divide it into 9 sections.

A point would get created on the arc every 19.4 degrees (7 points would get added between the arc points).

photo
1

This only seems to work when A is at [0, 0].

Also the points spawns really far from the arc. Is there a way to make them closer?


Hi, are you sure that you really used the right codes done by mathmagic ? It works fine at home for all position for A.


I nevermind you were right. I was retyping the CircularArc command in the input line.

photo
1

hello

CircularArc[A, B, C]

Sequence[Rotate[B, k, A], k, 0°, Angle[B, A, C], 10°]


saludos


Thanks it Works!

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If the name of your circular arc is "c", try

Sequence[Point[c, k/9], k, 0, 9]


Regards Abakus

photo
1

If the name of your circular arc is "c", try

Sequence[Point[c, k/9], k, 0, 9]


Regards Abakus


Perfect! i don't have to calculate the angles myself with this one.

Thanks!


Is there a way to save commonly used inputs in geogebra?

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Hi,


Is there a way to save commonly used inputs in geogebra?

You can create a Custom_Tool


Raymond

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