A tilted plane

[Anonymous]

Dear Djordje,

Thanks a lot for your kind response.

I hope very much that you will be able to help me resolve this matter.

I have recently faced a challenge really testing capabilities of ArchiCAD in respect of 3ds drawing. Here`s a concrete example. Please, look at a picture. I think it lends itself well to exploring ArchiCAD.

First of all, what has been depicted? It is just a preliminary sketch of National Business Center projected on base of association with one of state symbols of Azerbaijan Republic (on the left you can see an octahedron in the middle of a national flag).

On the right you can see a sloped beam though it is not a sloped beam, it is a very simplified depiction of a pedestrian corridor.

The matter is that the Center will be sited on the hill and besides roads it has been intended to build a special way for pedestrians in the form of a very long covered corridor with windows and ventilation systems just on the side of the hill.

The depiction of corridor was created by Roof Tool because I see no way in ArchiCAD to tilt a plane at an angle and build an object on it in accordance with all necessary measurements. Moreover, I need windows to be put into walls of the pedestrian corridor parallel to the tilted plane (i.e. defined by UCS, not WCS)!

What can you suggest?

Thanks!

Intel Pentium D - 3 GHz, DDR 2 - 1 GHz, Microsoft Windows Professional 2002, Service Pack 2, ArchiCAD 9, 1812 INT FULL.

[Dwight]

To make a tilted corridor:

make a roof plane for the floor
make another roof plane for the ceiling
place walls on the lower roof plane high enough to extend past the ceiling.
trim the walls to the roofs.
this takes two steps:
-- select ceiling and walls "trim top",
-- select floor and walls "Trim bottom"

Place windows in the walls. Of course, this will probably have a structure with two trusses flanking the corridor with glazing applied to the outside. Look in the library for truss elements. Use a thin wall for the glazing.


I did not know that your country had a space program. Good luck with the big blue rocket.

[Dwight]

And of course i miss that the windows need to tilt, too. Duh.

A window like that is not in the library, but not hard to make with GDL.

[Anonymous]

Dear Dwight!

It is friendly of you to suggest your advice.

Concerning your message I would like to note two points:

1.I have been merely bitten by the ArchiCAD bug (as well as AutoCAD, 3ds MAX, Corel Draw, Photoshop, Macromedia Flash)! I am primarily urged by aspirations to streamline my working process. A method you suggest counts towards creation of the pedestrian corridor. I admit it and I am grateful to you for your idea. But I am afraid your method lacks precision. What do I mean? Please, refer to a picture attached and you will see everything. Shortly, if I build a wall in length of 5 m. under default conditions and then put a dimension line it will show just 5 m. Otherwise, in case of creating the given model by your method I risk deviating from precision. How must I define an initial horizontal length of the wall it should subsequently equal 5 m. (in the tilted direction, after cutting by the roof)? It is just a problem!
2.I appreciate your subtle humor about a space program of my country. Though, living standard of the population has considerably risen in my country since Soviet Union collapsed, we are not still so rich to afford the space program. At the same time you caught right an internal meaning of this architectural composition-movement ahead like a rocket. As, Azerbaijan undergoes rapid economic growth.

Many thanks,

Awaiting your considerations.

Enam

[Dwight]

CAD wrote:
if I build a wall in length of 5 m. under default conditions and then put a dimension line it will show just 5 m. Otherwise, in case of creating the given model by your method I risk deviating from precision. How must I define an initial horizontal length of the wall it should subsequently equal 5 m. (in the tilted direction, after cutting by the roof)? It is just a problem!

Enam

I don't understand.

If you need to span 5m horizontally and the bridge tilts, the diagonal size will be longer.

???

[Anonymous]

as Dwight said you can draw the accurate dimention by section & change the angle of both roofs then trim m walls

[Anonymous]

Dear Dwight,

You wrote: "If you need to span 5m horizontally and the bridge tilts, the diagonal size will be longer".

Exactly! You are right! The diagonal size will be longer!

That`s why I had written: "...if I build a wall in length of 5 m. (i.e. horizontally) under default conditions (i.e. on the Floor Plan) and then put a dimension line it will show just 5 m. (i.e. an accurate size)".

And a question logically ensuing from it: "How must I define an initial horizontal length of the wall it should subsequently equal 5 m. (in the tilted direction, after cutting by the roof)?" NAMELY, THE DIAGONAL SIZE (provided by cutting) OF THE WALL SHOULD EQUAL 5 M.!

Because, I need not horizontal but diagonal length in 5 m. provided by cutting at that!

Please, share your considerations with me on this matter!

Then, Mabbase wrote: "as Dwight said you can draw the accurate dimention by section & change the angle of both roofs then trim m walls".

Now I don`t understand!

"...you can draw the accurate dimention by section???"
I cannot figure out! Please, clarify!

Best regards!

[Dwight]

It is beyond imagination how you could expect this to be automatic.
I'd use descriptive geometry.

Establish the location where 5m in the diagonal happens, drop a line down, and Robert becomes your mother's brother.