unknown horizontal isocurves appearing on surface, list starting at wrong direction( reverse list cant work), unknown bunch of horizontal isocurve clustering!! PLEASE HELP!

Replies to This Discussion

Permalink Reply by to] on April 21, 2010 at 1:40pm

hi so for starting on the and of your curve just use flip component
for catching the overflow points you have to multiply your t-domain value with the factor of your addition (so new X / original X) and cull the points with overshoot the domain value 1

Permalink Reply by to] on April 21, 2010 at 2:16pm

attached the file

Attachments:

• thisone.ghx, 235 KB

Permalink Reply by Guan Xiong on April 22, 2010 at 6:44pm

hey thomas! hope youre well! thank you so much for the definition! i have some questions to clear! hope you can enlighten me! lol

1) why are there bunch of unknown horizontal isocurves bunching on the surface?
2) basically what is t-domain? t-parameter? what imformation does it give?
3) what do you get from dividing the new X and the original X, and why do you do that?
4) why do you multiply the absolute numbers with the t-domain?
5) as we discuss before, what does reparametrize do to the surface?
6) why do you use evalute curve instead of xyz point?
i guess theres some inner stories that i dont know for me to work this out.

thank you so much for the help! I couldnt be much more appreciated!

Guan

Permalink Reply by to] on April 25, 2010 at 7:46am

hi guan
first of all maybe you should read threw the primers where you get all this information and many more
1. this lines are created through the points which are outside of the domain after your value addition
2. the t-domain: a curve or surface point could be described by their parametrical values
so a curve starts at the t-value 0 and ends with 1 if it is reparameterized (otherwise the t-domain is set by their length) for surface which need a second value it is described through their u,v values (x,y,z = u,v,w values of the domain)
3+4.i get the multiplicator which i need to calculate the t values for the new points
5. look @2
6. most of the time it is better to work with the parametrical values of a curve (t-value)

according your ghx it could be set up much easier but i didn't want to change the whole file to screw you completely