Modeling a Difficult Barrel Roof

[Anonymous]

I'm some of you may be sick of me already, but again tried searching for past answers but not really found anything applicable (although I may be blind). I'm trying to model a complex barrel shape roof of a train station. I've included a plan (google earth) and some reference pictures.

If you have any ideas and possibly explain your answers as am new to the program i'd be grateful.

Thank you for your time,

Richard

[Steve Jepson]

If I were modeling that roof I would model the individual parts of the roof and use them to construct the model.

If you are only trying to make a preliminary model for graphic presentations or something, then there are several other ways you may want to make it for for some specific view or purpose.

What are you going to use the model for? Working drawings? Renderings... how you model it will depend on what you need to do with the model.

[Dwight]

Draw the section as a Complex Profile.
Extrude the profile along a spline or simply draw it as a wall.

And all words come from the Greek.

[Anonymous]

Dwight - Thank you, I will try your method and post back the results. If you noticed on the plan the width of the barreled section also varys along it's path will your method produce the same effect?

Steve - I'm at university and have been set the task of block modeling a section of Liverpool City Centre. A fly through will be created from there, with various rendered images on a presentation boards.

Thank you everyone for your time and effort,
Rich

[Steve Jepson]

Sounds like fun. It would be great to fly in one end and out the other.

There is a similar train to what I have seen in Liverpool in the ArchiCAD transportation library if you need it. I hope you will share the flyby with us when its finished.

http://sketchup.google.com/3dwarehouse/search?tags=Liverpool

[Dwight]

oops. To taper that to the LOD you need, moosh two 1/2 barrels together using a fake flat part to do the varying overlap

[Ralph Wessel]

richgwilt wrote:
I'm some of you may be sick of me already, but again tried searching for past answers but not really found anything applicable (although I may be blind). I'm trying to model a complex barrel shape roof of a train station. I've included a plan (google earth) and some reference pictures.

Take a look at OBJECTiVE - an example image is attached. For more info take a look at http://www.encina.co.uk/objective.html

[Anonymous]

Hi,
Can I just say this has been the most awkward task i've tried to do, and it's still not right The things I still cannot do are:

1. Create the cut away edge at the front right hand corner. If you look on the plan there is an angled edge along the front (left hand side).
2. Get the back (right hand on the plan) correct either.

Anyone have any ideas on how to get a more accurate model than the one I have managed to create?

Thanks for your time,
Rich

[Dwight]

USE SEO to slice the ends. SOLID ELEMENT OPERATIONS...


And if the shell actually tapers, use my overlapping moosh technique.

[Anonymous]

Dwight wrote:
USE SEO to slice the ends. SOLID ELEMENT OPERATIONS...


And if the shell actually tapers, use my overlapping moosh technique.

Don't forget that the SEO will not display correctly in plan, though. This might not be an issue for you in this case.