Can this form be created in Archicad ??

[Anonymous]

I have to model a very dynamic form in archicad, something like the photo below.
please tell me this can be done with archicad ?
I have seen a lot of great features of archicad but not much in the way of free flowing shapes ?

I hope people say yes, this can be done... fingers crossed.
Thanks.
Ian

[Anonymous]

pixpast wrote:
Hi Jose.
Your video is absolutyl brilliant !
can you please tell me, all these forms were made with 100 percent archicad ?

also please can you tell me where i could find a tutorial to learn how to make such dynamic forms.

I really have to produce these for my new company, and i have to learn this.

Thanks a million.
Ian

Archicad 14 + objetive + archiforma + gdl + mesh generator

http://www.masterscript.nl/01/cms.php?id_cms=20

[Steve Jepson]

pixpast wrote:
steve, the model looks really good !
im almost sure, you did this with AC15 ??.

Could you type a few steps that you took to make this.

Thanks a lot.
Very interesting stuff.
Ian

Yes. I made it with 15 only, however, I would not be able to put more than one of these stretched to a point things on any one shell. I do not think it is impossible with AC 15 to make several of these shapes on one shell as it appears in the original model. That can not be the way it was done. In fact I would be suprised if those specific elements were modeled in ArchiCAD at all. As you can see from what I have posted it is possible to make such an element with ArchiCAD 15 but it would have to be one at a time and placed on main shell individually. This can also be done as in my first illustration but this is probably not how the original model mas made. I don't know. For all I know a distortion was made with photo shop or something.

If you want to give it a try here is a little help on how to make that shape.


View it in 3d now.






Now this is where it gets a little tricky and and verbal instruction get awkward. You just have to fool around with it until you have an intuition about how to get the results your after. Using the Continue Profile tool from the pop-up palette you add to the shell and then move the nodes, change the curves, tilt, stretch, etc... to get the shape you want. Good luck with that!






You can make some beautiful shapes with the shell tool. Doing it twice is not easy.



What is most helpful to me in learning how to use the shell tool is just to see what kind of shapes can be made with it. "A picture is worth a thousand words."

I wish there was a place where people could post their shell shapes for others to see. By looking at these I think I could learn a lot about how the shell tool works and how to use it.

[Steve Jepson]

For myself, I am making a library of shell starter shapes.
Shells I can start with to get at least a semi-predictable result.

More than one shape can be modeled from one shell.

Check this out. Two balls from one shell.

[Steve Jepson]

do you like this one? It's just one shell.



Not so good compared with 3ds.




If you make a material of the image you want to model and apply it to a wall or something you can see it while your modeling. I hate jumping back and forth from the image to the model.

So. Who wants to model the top of that .3ds ice cream cone ?

[Steve Jepson]

some shells. Anything that revolves around a center is easy to make.

I am not sure how to model a tea pot spout from with a shell.

[Barry Kelly]

Steve wrote:
I am not sure how to model a tea pot spout from with a shell.

Eventually when shell profiles can follow a curved path this might be possible.

Barry.

[Steve Jepson]

Shells will follow a curved path. At least some will. I just haven't found which settings will generate a shell that can be edited on the sides I want to stretch.

Also, it seems as if you can use the magic wand to form a shell that connects different shapes. An ellipse and a circle for example.

Draw and ellipse and and circle then select the shell tool that works and use the magic wand on each of them. This is done by accident but it worked at least one time. Not sure if I can do it again.

What it does is provide you with a set of nodes to work with to do what would be impossible otherwise. Caution! This can cause a crash.

This ellipse was connected to the rectangle using the shell tool and the magic wand. I don't know how to do it with any control. I don't know where to click on the ellipse or the rectangle to get a predictable result.

[Barry Kelly]

This is the "Ruled" shell where the profile at each end can be a different shape.
It has an option to try and match each node on one profile with a node on the other (paired) or it can match the nodes on the first profile with equally spaced points on the second profile (smooth).

The path between the two profile can still only be a straight line.

Barry.

[Steve Jepson]

Yes. But it's a place to start. You can add on to the shell form so the at least generating the node points to start with is some help.

As you can see, shells will follow the path of a line, spline, circle, what ever.

I think this stil may be part of how a tea pot spout can be made from a shell.



Shot at 2011-09-02

by the time i fugure it out someone else will have done it a better way.

[Barry Kelly]

Steve wrote:
As you can see, shells will follow the path of a line, spline, circle, what ever.

Let me start by saying I haven't played a great deal with the shell tool so I may be out of my depth here but from the little I have done I have found the following.

The profile shape can follow a line, spline, circle, etc., but the actual path of the profile has to be either revolved around a centre point (revolved shell) or extruded along a straight line (extruded and ruled shells).

In the case of extruded shells the start and end profiles are the same but the ruled shell can have different shape profiles at each end.

The centre axis of a revolved shell can be angled or stretched in length but must remain straight.
The same goes for the path of the extruded and revolved shells.
The profile planes can also be rotated which adds to the complexity.

A spout could be made from a few revolved profiles to get the curvy "S" shape but the shape of the profile can't be altered so you would just have a curvy pipe.
The ruled shell will allow for the different shaped profile along the spout length but it has to be straight.

The only thing I can think of that would do it is the "Sweep" command in GDL.

As the shells are essentially GDL commands as well I am hoping that we will get the benefit of being able to sweep a shell in the future.

Barry.