Sloped Slab

This feature is handy for several uses in the project. To create a complex architectural shapes, sloped flat roofs or driveways use the sloped slab command. In the case of sloped slabs you can modify slope angle in the Slab properties dialog box. This field is greyed (disabled) when defining general properties. There are two ways to create sloped slabs: with reference points or reference lines. 

Sloped slab with reference points

With this command you can create sloped slabs by defining three reference points.

• Create slab by sketching it, using the Polyline tool.
• Press Enter to finish sketching the slab outline.
• A pop-up window appears where you can select where the 0 elevation of the slab is calculated from. If you select YES, the bottom surface; if you select NO, the top surface is the 0 elevation of the slab.

• Pick on a boundary point to specify its elevation, then set the elevation value.
• Repeat the previous step for the other two reference points of the slab to set its lowest and highest parts.

Sloped slabs with reference lines

With this command you can create a sloped slab by defining a reference line and the angle of the sloped slab.

• Create slab by sketching it, using the Polyline tool.
• Press Enter to finish sketching the slab outline.
• Specify the reference line with two points. These points will have the same elevation. The slope arrow perpendicular to the reference line displays the sloping direction. If the slope arrow direction is not acceptable, prior to the definition of the second point, press ENTER to return to the definition of the first point once again. A dialog box will pop up where you can enter the elevation of the reference line and the slope angle.

Angle of sloped slabs

In the slab porperties dialog you can later change the slant angle of the slope. You can define the value with angle, percentage or division.