DynamicCoordinates[] in 3D View

hjbortol shared this idea 6 years ago
Completed

Greetings!


DynamicCoordinates[] is currently implemented only for points in 2D. Any plans to implement it in the 3D View?


Thanks, Humberto.

Comments (11)

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The syntax with 4 parameters now exists but is still buggy

https://jira.geogebra.org/b...

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Please try the new version (5.0.298.0)

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hello

thanks

a problem: let be A free, B=dynamic coordinates[A, , , ] I suppose that when B is moved A gets initial values equal to B.

when I move B horizontaly is OK but verticaly is WRONG

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Hi,


In your case, what happens exactly? Is A a 2D point at start?

Cheers,

Mathieu

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not

A 3D point, B dynamicscoords. ie B=dynamiccoordinates[A,-round(x(A)),-round(y(A)),-round(z(A))]

when I move B horizontaly first setvalue[A,B] is done then I can move A and B is calculated

but when I move B verticaly only the third coord of A is modified

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Hi,

sorry mathmagic, for me it's work well...

But it's difficult to imagine position of point B...in your example...

because, just one Update, change position of B...

So, how do you move B ?

...

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in attached do this:

press buton then A=(2,2,2) and B=(-2,2,2) by definition; then try move horizontaly B a bit and A is (-2,2,2) aprox; this is OK

press button again then A=(2,2,2) and B=(-2,2,2); then try move verticaly B a bit and A is near (2,2,2) this is wrong. A must be (-2,2,z(B)) in this case

saludos

BTW: B is not movable because B is not free. when you try to move B then A is moved to B and selected and moved. (so I understand dynamiccoords)

Files: foro.ggb
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...It's the same problem...with script...

(No problem for me ! It's work well !)

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I do not see dynamiccoordinates in your file

I do not need create a work, I only note a bad behavior

move up-down the point in your idiot file please

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sorry mathmagic...


but what do you want ?

assume coordinates of B are round:

If you move B, then new position of B is symetrie[B,(0,0,0)], (one UpDate)

but if you still move B, then new position of B is B !...(an other UpDate)

...and more...

Then, how many times do you move B ?

...???

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I do not want anything

I was doing a work I did it for this topic

https://www.geogebra.org/help/topic/is-it-possible-to-save-the-previous-value-of-a-point-

and the work is in my post

https://www.geogebra.org/help/topic/is-it-possible-to-save-the-previous-value-of-a-point-#comment-188207

and stored in

http://ggbtu.be/m2512923

it is simple; try to do it in 3D using same structure

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