tutorial question: Uneven Surface Diagrid

I got a question:
I am go through the tutorial:Grasshopper Primer_Second Edition_
about the uneven surface diagrid.
@ page 95

my question is as long as I Right-click on the Graph Mapper and choose a graph type:bezier
the subsrf component will report error,
"subsurface is invalid due to zero-length dimensions of the cutting domain"

and I only get one cluster of grid on one side.

conic also not work
linear seems work but not good for me to edit.

have you guys encounter is problem??
what happened?

thanks

Replies to This Discussion

Permalink Reply by Juan_P on July 15, 2010 at 11:53pm

Try downloading the example files for the primer... I ran across the same problem

Permalink Reply by guang on July 16, 2010 at 12:36am

yes, I download it . I can not figure out why the sample file works. but My file is not work....

Permalink Reply by guang on July 16, 2010 at 10:52am

O, my friend figure it out. we can detect the V number in my scheme is not from 0to 1 , is actually form 0-200.
so double click the graph-mapper change X1 Y1 from 1 to 200.
it works.

Permalink Reply by jchrist on July 26, 2010 at 10:44am

Hey, you need to reparameterize the Srf. You're running into the problem described on p. 86 in the primer, where you need to reset the domain of the surface to be between 0 and 1 :)

Permalink Reply by guang on July 26, 2010 at 10:57am

that's right! :)

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