Revolved Shell: Define Contours in Section

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum9.png 

Here, you draw several revolved Shells having a common endpoint for their profiles, but slightly offset from each other.

Then, in the Section window, select each Shell separately and draw its contour in the shape of a rectangle - use progressively smaller rectangles. The result is several overlapping Shell segments, each of a slightly different size.

1.Ensure that the default Shell elevation is 0.

2.Draw the first revolved Shell on the Floor Plan as shown.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum1.png 

3.Draw two more revolved Shells using the same profile starting point, but each slightly larger and offset from the previous one.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum2.png 

4.View the result in 3D.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum3.png 

5.Now create a Section for these Shells and open the Section window.

6.Select the Shell closest to you. From the context menu, choose Define Shell Contour.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum5.png 

7.Draw the contour as a rectangle.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum6.png     https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum7.png

8.Select the other two Shells and define rectangular contours for them.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum8.png 

9.View the result in 3D and fine-tune as needed.

https://helpcenter.graphisoft.com/wp-content/uploads/archicad-24-reference-guide/040_elementsvb/ShellMuseum900169.png 

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