panel string does corrupt data flow, thats how i describe my problem=)

hi there,

iam fairly new to all this so i tried to follow dave ruttens tutorial on vimeo.

while doing the tower elevations and square meters text tag stuff i discovered the following...

( i wouldnt have had that problem unless i would use as much panels as i do because i want to understand whats happening under the hood=)...))

so if you have a look at the folowing and then insert a panel after the clean data tree node and then attach the panel to the area² node thigns wont work any more?!

why is that?!

and saving out of grasshopper a hi-res image as a jpeg gives me a black background always?! why is that=)

thanks for your time and help!

Attachments:

issue.png, 321 KB
issue2.png, 326 KB

Replies to This Discussion

Permalink Reply by David Rutten on April 26, 2012 at 4:53am

Hi Solid,

a panel is a text parameter, i.e. it converts all data that comes into it into text. A lot of data types cannot be fully represented by a piece of text. the number 45 of course can be converted into the text "45" which can in turn be converted back into the number 45 without loss of information, but the number 3.900000000002 will be converted into the text "3.9", which is not the same. A curve may be converted into something like "Closed Planar Curve", which tells you little about the actual shape, certainly not enough to reconstruct the original curve.

Panels can certainly be used to inspect data, but don't insert them into 'live' wires and expect the data flow to remain unimpeded.

David Rutten

david@mcneel.com

Poprad, Slovakia

Permalink Reply by solidsaw2tod on April 26, 2012 at 4:56am

wow,

thanks for your speedy answer=)

ok, i just wondered how and where the original data flow might be visible - is there a option or something that shows "the" actual data that flows through ?! if not no problem of course, im just being curios

shall i close or delet the thread?!

Permalink Reply by Danny Boyes on April 26, 2012 at 5:14am

You can still use a panel but don't then continue on in the flow of data.

You are not the first and won't be the last to think along these lines. Keeping the thread should hopefully serve as a lesson to others.

You black backgrounds are a result of the image viewer/editor that you use either does not support Alpha Channels or by default the background is black. The actual background of the exported Hi-res image is transparent.

Permalink Reply by solidsaw2tod on April 26, 2012 at 7:10am

thanks for the explanation...

so thread closed but not deleted...

Permalink Reply by David Rutten on April 26, 2012 at 7:46am

No need to close either, I typically only remove/close double posts and spam.

I re-opened it in case someone wants to say something.

David Rutten

david@mcneel.com

Poprad, Slovakia

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