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Drawing

How to draw curved walls

A curved wall is drawn like a straight one: click both ends, then move the pointer to bend it. Use it for a bay, a rounded corner, a curved stair wall or a semicircular room.

You can also curve any straight wall later, and straighten it again, without drawing it twice.

Draw a curved wall

  1. Turn on the Curved wall tool

    Press Shift+W. Or click the small arrow next to Wall in the left toolbar and pick Curved. The label beside Wall now says Curved.

    The wall type chooser open with Straight and Curved options
  2. Click the start and the end

    Click where the curve starts, then where it ends. It snaps to corners and wall ends the same way a straight wall does.

  3. Move to bend it

    Move the pointer sideways. The wall bows out and a readout shows the bulge and radius, for example Bulge 60 cm · R 2 m. Click to place it.

    A curved wall being bent with a bulge and radius readout
  4. Or type the radius

    While bending, type a radius, for example 250, and press Enter. The wall takes exactly that radius.

  5. Finish

    Press Esc to stop drawing.

Curve, flip or straighten a wall you already drew

  1. Drag the diamond

    Select a straight wall with V. Drag the small diamond in the middle of the wall to bend it.

  2. Use the Curve section

    In the wall panel on the right, open Curve. Type a Bulge (how far the middle bows out) or a Radius. Flip curve bends it the other way. Straighten makes it straight again.

    The Curve section of a selected wall with Bulge, Radius, Flip curve and Straighten
  3. Or use the actions bar

    Click the three dots in the small actions bar beside the selected wall and choose Curve wall. On a curved wall the same place offers Straighten wall.

Tips

  • A curve can bow out at most a half circle. A bend very close to straight snaps back to straight, and one very close to a half circle snaps to exactly a half circle.
  • For a whole round room in one drag, use the Room tool with the Round shape (K). See Rooms.
  • Curved walls split rooms and get chain dimensions just like straight ones.
  • The panel shows Length (curve): the length along the arc, not the straight distance between the ends.

Common problems

I cannot edit a curved wall in the Elevation view
The Elevation view draws a curved wall flattened onto its straight line, so it cannot be edited there yet. Move its doors and windows on the 2D plan instead.
The curve will not go any rounder
The largest curve is a half circle between the two ends. For a bigger arc, draw two curved walls end to end, or use a Round room.
The wall snapped back to straight
Very small bends snap to straight so a shaky hand does not leave a slight curve. Bend it further, or type a Bulge or Radius in the Curve section.

Related topics

Try it on a real plan

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Open the editor and draw a curved wall