How to draw line in viewer3d ?

Hello,

I m trying to use viewer3d as a openGL viewer and it works well for 3D surface and 3D points using images.ui.graphics.Surface and images.ui.graphics.Points but i wonder if it is possible to draw line or connected line inside the viewer ? I dont mean how to show wireframe when using a surface or annotation line.

I just try for exemple to attached 3 vectors in X,Y and Z direction to each 3D object.

I saw 2 functions WideLine and Thinline but i did not find any documentation about them.

Thanks for your help

Answer 1

[Matt J]

You could use images.ui.graphics.Surface to create a very thin cylinder, could you not?

[philippe duvauchelle]

Yes i could but it is far to be the best solution ...

I tried (without documentation) the 2 functions WideLine and Thinline i mentioned and it works as you can see below :

li=images.ui.graphics.WideLine(viewer,"Data",(rand(200,3)-0.5)*30)

Nevertheless, i still dont know how to format the data to have NOT connected line.

Any suggestion ?

Thanks

[Matt J]

Yes i could but it is far to be the best solution ...

Far in what way?

Nevertheless, i still dont know how to format the data to have NOT connected line.

Perhaps,

for k=1:200
 li(k) = images.ui.graphics.WideLine(viewer,"Data",(rand(2,3)-0.5)*30)
end

[philippe duvauchelle]

Far in what way?

for a line, i just need 2 points. If i use a surface to make a thin cylinder, i need many vertices and facets.

NOT connected line

your solution works well

I just find out another solution : add 1line with NaN values like for exemple :

0 0 0

1.0000 0 0

NaN NaN NaN

1.0000 1.0000 0

0 1.0000 0

NaN NaN NaN

0 0.5000 0

0 0.5000 1.0000

Maybe not the bast solution but it works

Thanks for your help

[Matt J]

You're welcome, but please Accept-lik the answer to indicate the quesiton has been resolved.