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lvl10720-Turquoise
20-Turquoise
Aug 27, 2023 5:03 PM UTC
Question

How to plot an Arc in 3D with Mathcad 15 ?

Hello Everyone.
From :

Plot_Arc.PNG

 

How to plot an Arc in 3D with Mathcad 15 ?
Thanks in advance for your time and help.
Best Regards.
Loi.

8 replies

Werner_E
Werner_E25-Diamond I
25-Diamond I
Aug 27, 2023 6:38 PM UTC

Depends upon what is known from the arc.

But basically you would first have to find a parameter representation and then use CreateSpace().

Werner_E_0-1693171343447.gif

 

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lvl10720-TurquoiseAuthor
20-Turquoise
Aug 28, 2023 12:00 AM UTC

I greatly appreciate your time and explanation, Werner. 🤔 🙄

Sorry,.. my question is not clear :

Arc_through_4_points.png

 

How to plot an Arc go through 4 points ? ( start-point : red , end-point : orange )

Best regards.

Loi.

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Werner_E
Werner_E25-Diamond I
25-Diamond I
Aug 28, 2023 12:18 AM UTC

What kind of "arc"? You sure can't demand it to be part of a circle (which usually is defined by just three points)

In your example, by chance (?) all four points lie in a plane and on the same circle arc (with center in the origin). But this is not normally the case with four arbitrary points in space.
So if you want to envisage an arc of a circle, you must only specify three points, not four!

 

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