LabVIEW 3D Picture Control Evaluation Software Discussion

[polarman]

 LabVIEW 3D Picture Control Evaluation  doesn't work with Labview 8. How resolve this problem? Have you got a solution?

Message Edité par polarman le 06-29-2006 04:51 AM

[ChrisP]

When I used the 3D picture tool in labview 8, images that looked fine in 7.1 rendered with the colors off. For me, making my lights (especially ambient) much dimmer resolved the problem. I'm sure if this is the problem you were having Polarman, but that was the only tweak I had to make to use my 3D vis with labview 8.

[polarman]

Ok, but my problem is not this. I can't install LabVIEW 3D Picture Control Evaluation Software under Labview 8.0, If I remember I have got an message look like "You must install Labview 7.1 or later". My solution is to reinstall Labview 7.1 with Labview 8.0, then I can install LabVIEW 3D Picture Control Evaluation Software.
If you have others solutions, I am interested.

[IMAQ Image to cluster of data]

As I can draw a pipe using picture 3d palertte?

[Ben]

The propganda for LV 8.20 and the 3D picture says " ... take advatage of hardware acceleration..."

1) Has anyone tried out the 3-D picture control in LV 8.20?

2) Has the performance improved?

3) Has the documentation been improved?

4) Can we use custom skins and lighting now?

5) Can we do pictures larger than 512 X 512?

Thanks for you replies!

Ben

[Joe_H]

Have a look at this pic of the scene example from 8.20

Message Edited by Jhoskins on 08-16-2006 01:36 PM

[Ben]

Thank you Joe!

It looks like "YES" is the answer to all my queries.

Now where did I leave those old VI's I was working on..... ?

Ben

[chilly_charly]

I'm just beginning to play with the new 3D picture tools. Nice improvements over the previous version, and some of my hotest problems, such as texture mapping, seems to be adressed. I even bought a new video card to take plain advantage of the new tools !

Some questions though :

What should be the best approach to reproduce some of the 3D graph (activeX) functionnalities ? I have in mind two critical applications :

- how to create a parametric plot (for instance to draw a torus or a pipe) ?

- how to draw a height field using randomly placed vertices ? I have such a 32000 points surface that rotates nicely using the 3D graph. The only solution I found was to interpolate the surface to create a rectangular mesh. Unfortunately, in order to see all the surface details, I have to use a 1000x1000 mesh, and the rotation of this one million points surface is MUCH slower on the 3D graph.

[Ben]

Hi CC!

I had started that project with the previous versin of the 3D picture but stopped due to the major limitations I listed in my previous post.

I'll see if I can dig up those examples and get 8.20 loaded on my laptop this week-end.

I'm still curious about the 32000 point surface plot you had mentioned quite a while ago. What made you go with interpolation into a 1000 X 100 mesh?

Ben

[chilly_charly]

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Ben a écrit: ...I'm still curious about the 32000 point surface plot you had mentioned quite a while ago. What made you go with interpolation into a 1000 X 1000 mesh?

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Some pictures will be much better that a long explanation.

I would like to combine a 3D cave survey with a 3D model of the ground surface. Everything is "nearly" allright using the 3D activeX graph, except...
1/ it does not work on MacIntosh 😞
2/ it does not accept texture mapping (no way to display either the topographic map or an aerial photo) 😞
3/ I still have a lot of work to do before being satisfied 😞 😞

The attached picture crops enlarged portions of a ground surface that show the difficulty of using a square mesh elevation instead of a random triangular mesh. The first picture on the left corresponds to the original data (triangular mesh with the 3D graph). The other pictures are the corresponding surfaces obtained by interpolation with an increasing square mesh size (1000x1000, 500x500, 180x180). The 1000x1000 mesh (1 million vertices) gives a really nice result, even better than the 3D graph in the flat area portions (but this could be corrected), but can't be manipulated, even with a reasonnably good graphic card. Even the 500x500 mesh (250 000 vertices) is too eavy to be visualized by a patient user, and a lot of details are already lost. The 180x180 mesh (32000 vertices, equivalent in size to the original graph)) can be moved easily using the new 3D picture, but do not give a fair representation of the surface complexity.

For those interested, the 3D interpolation was done using SurGe, a really good shareware application developped by Miroslav Dressler, embedded in my own program using a system exe call .

I think the 3D picture control will become a fantastic tool as soon as a number of functions available in the 3D graph control are implemented.

I would strongly appreciate some comments from someone at NI.

Message Edité par chilly charly le 08-30-2006 03:12 AM