Box/ Flat Box with a BBox

Replies to This Discussion

Permalink Reply by Joseph Oster on June 22, 2016 at 10:00pm

It's hard to know where to start...  Your 'Point' param shows nine null points?

I would suggest fixing that and using 'Internalize data' on both your 'Curve' and 'Point' params so you don't need the Rhino file anymore.

If you connect a 'BoxProp' component to each of your 'Bounding Box' components, the top one using curve 'End Points' shows a list of zero-volume boxes (the 'V' output), which indicates a "flat box" to me.  The lower 'Bounding Box' component returns 'NaN' (Not a Number) due to the invalid input points.

Beyond that, your extensive use of 'Explode Tree' looks suspect to me - don't know what those are for?

Permalink Reply by Joseph Oster on June 22, 2016 at 10:15pm

P.S.  I fixed the 'Point' list and internalized the data as I suggested (attached - no Rhino file needed).

What I see now is that some of the points are apparently not in the same plane as the curves which causes six of the bounding boxes to not be flat.

I'm not sure what you're trying to do with the 'Map to Surface' and 'Box Morph' components?

Attachments:

• Boxflatbox_2016_Jun22a.gh, 29 KB

Permalink Reply by davohadi on June 23, 2016 at 2:59pm

Hi Joseph Oster

Sorry for whatever reason my GH hasn’t been save.

See attached the new GH File.

If you look at my Y value on my comparator they are all equal so I should get a flat box instead of a box.

I use the "Map to surface" or the "Box Morph" to scale my input curve.

Thank you

Attachments:

• Box flat box.gh, 22 KB

Permalink Reply by Joseph Oster on June 23, 2016 at 3:37pm

I don't know how you placed those points but there is a VERY SMALL difference in the 'Y' dimension on some of them - below the threshold of the 'Equality' test.  To fix that, I deconstructed the X/Y/Z values of the points and re-constructed them using the 'Y' value of the curve 'End Points'.  That fixes the "Flat Box" problem:

However, 'Box Morph' still fails as it apparently considers a "Flat Box" to be a "degenerate box"?  Don't know how to help you there...  Maybe try 'Shear' instead of 'Box Morph'?

Attachments:

• Boxflatbox_2016_Jun23a.gh, 25 KB

Permalink Reply by davohadi on June 23, 2016 at 6:02pm

Hi Joseph Oster

 

I was using the box morph to try to get a result.

On my first prototype, the curve I was not able to get by the "Map to Surface" I was able to get it by "box morph"

 

The think I don't understand, that my cure is move to a plane, and this same plane is generating the other point (everything in GH, I baked it to put in the forum)

 

So Y should be all equals.

 

 

So still do not understand why getting different Y.

 

I also find a other solution to achieve what I was looking for.

See attached the GH file.

 

Thank you for your help.

Attachments:

• Scale.gh, 13 KB