Complex curve

[Josh1587140445]

Ok, I have a question to all of you on the best possible method to model a particular item.

 

In the building design there is a very ornamental piece that extends from the bottom of the roof and varies in height. The roof also curves both in plan an elevation.

 

So I am trying to find a good technique to do this. At this point I lofted multiple shapes that follow bottom edge of the roof. But the object does not have thickness. So right now I am assuming that I need to go back to all of my shapes and close them off. You can see in the screen shot that the shapes continually change size in all directions.

 

And another problem I am having is getting the object to turn the corner correctly.

 

 

 

Thanks in advance for your tips.

[William Alexander]

Josh,

 

This "Cornice" pc, really varies in hieght & width? What kind of material, just curious.

 

Two quick possibilities

A mitering operation will work if the profiles are the exactly the same at the piont of intersection. Mesh edit, Slice, and delete the vertices past the cut. You will have to loft two seperate pcs. Maybe create end pcs that are the same and from those, loft towards the center of the roof. -Construction 101 virtual miter box?-

 

Bolean operation. Create a spline from the profile close to the corner like a router or shaper bit, extrude and subtract from the intersecting mesh\solid. Then repeat for the other side.

 

There may be a better way, but this might help in the short term.

[3d-doctor]

convert splines to nurbs curves and do a 2 rail sweep................that way you'll have a parametric surface much the same as a loft but with much more control

for the mitre i'd be looking at 2 surfaces.........one for front and one for side

max nurbs sucks but it'll do this kind of thing no problemo

[STRAT]

i draw odd shaped cornices like this most often.

 

i use autocad's surfacing tools (tab surf) and viz's surface tools.

[diablo]

I agree with Strat, I use autocad surfaces when I want something very accurate, But it doesn't mean than you have to do it with cad maybe you can use another program if you know how to use it..

[kid]

just use rhino

[Craig Ramsay]

Rhino is amazing for stuff like that