how good are your problem solving skills in rhino?

[sephcor]

Tilite,
I'm not sure what the problem is either. I tried exploding the solid surfaces and only trimming with the local surfaces to see if that would work. It didn't. However, I did do Curve>Duplicate Edge on your roof line, deleted your old roof, used Suface>Extrude Curve>Straight, and made a new roof surface. Even though it doesn't make sense to trim a surface with a solid, in this case, you can use your solid as the trim, and then click on the outside parts of the roof to trim away. I noticed that my new roof had a little more isoparms in it but other than that, I don't know why it worked. Give it a whirl. It doesn't make sense but maybe it will work for you. I'm using Version 3c.

[tilite]

yeh ive tried the dupedge tool but it didnt help out... well it did but not enough... it aloud me to trim 1 more surface but im stuck with 3 that i cant do anythign with.

so ill post that here... maybe if you can try it again in this file... if it works can u post an attachment.

cheers

[Dimos]

If I understood well, you want the saw shaped polyline extruded, and use the vertical walls to trim the extruded surface. This worked fine to me, but take care of your saw shaped polyline because it is not perpendicular to the walls.

[tilite]

yeh i knwo its part of the design... it is supose to be like... thos crazy architects!! dimos can u upload a zip?? i just trim and upload??

tnx i really need it... or if anyone else can that would be great!!

edt: something i just notived about 1 of the surfaces... it is rather interesting... it has and extreemly iregular for... just change to chaded viewport to understand what i mean

[Dimos]

Before I upload the attachment, see if you can do it too. What I did was to rotate the saw shaped polyline to be parallel with the walls. I did this because if you do not do that, the extrusion is by default perpendicular to the construction plane but your build it is not, so the roof will be not perpendicular to the walls. If you have choosed another direction to achieve the surface as is in the file you sent (perpendicular to the walls) and without rotating the template polyline, it is possible that the surfaces of the resulting roof will be one on top of the other, resulting on what you are referring to as "irregular form", and then maybe this causes the problems with the trimming.

[krembo99]

is this is what you wanted to achive ?

[Dimos]

As far as it goes for the untrimmed surface in the file you sent (Tilite) I achieved to do it too, I changed the degree (command "_changedegree") of the surface, I think it was "1", I made it "2" (U+V) and then the trim worked.

[tilite]

thanks dimos i appreciate the guidance but the problem is i have done all of this... the the surfaces that did trim on this angle are completly customable... but that i mean that all commands work... explode, changedegree, trim blah blah blah... its only htese 3 shapes i am having trouble with....

the 3 surfaces remaining wont even changdegree!! they are just nakered... and i do appreciate the guidance but at this point i just need to get a copy that works... you can see from this image there are other surfaces in the same circumastances (excatly) that have worked... only 1 of these remaining surfaces was "irregular"... im just lost... its not that i dont know how to overcome this its just i am out of ideas.

http://img11.imagevenue.com/loc140/th_cdb_dimos.JPG (http://img11.imagevenue.com/img.php?loc=loc140&image=cdb_dimos.JPG)

but i mean no offense by this in the slightest... i had a friend of mine from uni to check it out (absolute wiz) and he was completely bambozeled!

[Dimos]

I 'm still not sure what the problem is all about, because I can change the degree of the untrimmed surface on the file you sent. I 'm sending the file with my approach.

[krembo99]

thanks dimos i appreciate ......
.. im just lost... its not that i dont know how to overcome this its just i am out of ideas.

but i mean no offense by this in the slightest... i had a friend of mine from uni to check it out (absolute wiz) and he was completely bambozeled!

have you tried to look at my solution ?

I think it works great ..
that is, if i correctly understood the problem.
Just check the file i attached .

[tilite]

yeh thanks krembo i saw your file and it wasnt quite what i wanted... if you grab dimos' file that is excactly what i wanted tnx dimos...

i think i will revisit this after my final crit next friday... see if i have the tolerance then:shrug:

[Dimos]

tnx dimos...


Your welcome tilite :) I am sending another file, where the roof is alligned (parallel) to the building.

[krembo99]

yeh thanks krembo i saw your file and it wasnt quite what i wanted... if you grab dimos' file that is excactly what i wanted tnx dimos...

i think i will revisit this after my final crit next friday... see if i have the tolerance then:shrug:

no problem, but i think me and Dimos had the same solution :-)

- polysuffaces instead of surfaces ... :-)

[jbe3d]

Hi
When you have a problem such as this, first thing to do is check the surface to see if it is valid. Two ways to check. From Analyze|Dianostics, click on Select Bad Objects, or after selecting the surface to be checked, click on Details in the Properties box. In this case, the surface is invalid. I don't know how it was created so I can't say why it is bad, but here is what I did to fix it. I duplicated the border (from the Curves menu), then deleted the surface. I exploded the curve then joined up the curves on just one end and re-extruded it. Now the surface is good and trim/split work.

I'm not sure how to attach the file, so if you'll just do the above it will work.

Jeffrey Everett

[tilite]

jeff it wsnt a bad surface and i did rebuild the extrusion by ussing dupedge... still same situation... i will revisit this but i just wanted to say thankyou for you first post being in my thread... rather rare but even more rare for a member that joined in 2002 and posts for the first time now!! hoah! i hit the jackpot... hahaha:thumbsup:

krembo you solution was the same yes but if you compare the files your surfaces are 'iregular' .. ok i really need a proper work for that now, lol. so yeh just grab dimos' file and have a look a in the shaded viewport... problem should show in a render too i imagine

[jbe3d]

Here's what I get when I check the surface
Rhino surface object is not valid.
Polycurve m_t[0]=38000.5 and m_t[1]=38000.5 (should be increasing)
ON_SumSurface.m_curve[0] is not valid.
ON_Brep.m_S[0] is invalid.
Here's what I get after re-extruding
Rhino polysurface object is valid.

I don't know why you're not showing the surface as invalid. :shrug:

I work in Rhino about 12 hours a day making manufacturable solids, and have since v1. When I heard about a new Rhino NG, just thought I'd check it out. Really, the place you want to ask technical questions is the official Rhino newsgroup (news.rhino3d.com). Maybe I'll see ya there.

So I've been a member for 2 years? Didn't notice. :eek:

Jeffrey Everett

[CGTalk Moderation]

This thread has been automatically closed as it remained inactive for 12 months. If you wish to continue the discussion, please create a new thread in the appropriate forum.