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Boundary Blend - some questions

Jacoolo

New member
Does anybody of You take practical advantage and when of following options:

1) Control Points > Fit:

*Arclength - why&when?

*Point to Point - why&when?

*Piece to Piece - why&when?

*Developable - why&when?

2) Options > Inluencing curve - why&when?
 
Control points are used to control the striation or flow of the surface. It is usually better to show striation in examples. My first day of my one week surfacing class covers why and how of control points.
 
Jacek- would you like to translate what your polish friend said about the "developable" option?


("powierzchnia o kiepskich walorach estetycznych ale bogatych praktycznych. Jakich wida
 
well I can say google is not that far from right meaning

powierzchnia o kiepskich walorach estetycznych ale bogatych praktycznych -

surface with a poor quality but high pracital(technology issues) conditions
 
Thanks!


Ilike to know more about the developable option! Do you (jacek ) or anyone else know where you want to use it? in what case?


Also, pro/E help says :
<UL>
<LI =kadov-p-CTopic-Text-Subbulleted>
Natural
 
developable option seem to fit oblique cone and rulled surfaces across profiles to make the Gaussian curvature zero. i'd like to see a practical example too.
heres what i found about how it works,doesn't make sense to me:
<a href="http://www.gtwiki.org/mwiki/index.php?title=Different_Surfacing_Methods" target="_blank">
"The </a>Developable Surface<a href="http://www.gtwiki.org/mwiki/index.php?title=Different_Surfacing_Methods" target="_blank">
is a special command that optimizes the isoparms through an algorithm
so that the resultant surface can be unrolled without any positive or
negative Gaussian curvature. The algorithm follows the edge of the
splines and finds where the perpendiculars are identical. Then it
produces an isoparm for each of these coincidences."</a>
 

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