Hello, whenever the output of a user tool comprises vectors, and when I use several instances of the same tool on different objects, the vectors from the previous instance "jump" at the location of the new instance. If I move the input objects of the first instance, the vectors "jump" back in their initial position, but then the vectors of the second instance jump also!!!
This has been happening since years. I took the habit of not having vectors as output of user tools, but sometimes it is useful! (lists of vectors work, they do not "jump". But lists are not always convenient as you can't select an item by clicking on it).
Has anyone an idea how to work around this?
Is there a plan to solve this problem?
Thank you,
Laurent
Note: Points work. So a turn around is to have points as output which I then must link to create vectors. But it doesn't show what is the direction of the vector, so it takes time to find this direction by other methods...
The same question 
Note: Points work. So a turn around is to have points as output which I then must link to create vectors. But it doesn't show what is the direction of the vector, so it takes time to find this direction by other methods...
Note: This problem happens in 3D only.
I think it is an
Application to computer graphics of https://en.wikipedia.org/wi...
so it is not possible solve the problem as you hope
I have attached a simple example of this phenomenon. When you apply the tool "force from face" (in the menu) to the faces of the tetrahedron, successively, the element's values are correct in the algebra window and the points are shown correctly, but the vectors are all shifted to the last element modified...
I can not open your tool; what should the tool do?
Oh... The mystery thickens...
I tried opening the tool in "manage tools/open" and it shows only undefined objects!!!
And yet the tool works!!!
I never saw that...
Attaching the file, with the tool applied to another polygon. (please open the 3D view, all objects are in 3D)
Thank you so much for looking into this!
Now I have made another tool doing the same thing.
This is the script:
First I make a plane in 3D to be sure all objects will be 3D
Then I make a polygon on this plane (here it's a pentagon). The name is poly1
Now this is the script:
O=Centroid(poly1)
P=O + PerpendicularVector(poly1)
e=Vector(O, P)
Now the output objects of the uset tool are e, O, P
The input objects selected automatically are the 5 points of the pentagon.
BUT I remove these 5 points and select the pentagon instead. (This is very convenient as the tool can be used with one single click with any polygon)
And that's it.
PLEASE NOTE that the tool is working, in the sense that all the output objects are defined, and correctly defined, in the algebra view.
It is only an issue of display of the 3D vectors when they are the output of a tool... Slightly irritating... ;)
If I unclick "show object" for the output vectors and create new vectors from the output points it works fine. (This is what I do in practice). Also I can still use the VALUES of the output vectors, which are correct. It's just that they are shown from the wrong starting point.
tienes razón: he construido una herramienta desde el principio para hacer el vector a partir de un polígono y cuando la uso varias veces me redefine el punto centroide de los polígonos sucesivos al último de ellos y me pone todas las direcciones perpendiculares al polígono en el mismo punto, y tampoco puedo editar la herramienta
solo puedo concluir que no es posible hacer una herramienta empezndo con poligono en 3D y que funcione.
En el adjunto hay dos herramientas construidas siguiendo exactamente los mismos pasos
una de ellas se puede abrir/editar y la otra no y ambas no tienen vector alguno, así que las herramientas para polígonos 3D no funcionan como las herramientas para los polígonos 2D
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