Drawing the Outer Walls
Define the outer walls of the building.
- 
                Verify that the X/Y window is active, or activate it by
                    clicking in it.
                The X/Y symbol in the top-left of the window is red when the window is active.
 - 
                Create outdoor walls in the X/Y window using one of the following
                    workflows:
                
- On the Objects menu, click .
 - On the Objects toolbar, click
                        the 
                        Add polygonal objects with orthogonal walls and a
                            ceiling icon. 
 - Click twice at (-10, 6) to specify the first corner the polygon.
 - 
                Click at the following coordinates to specify the corners of the polygon, for
                    example:
                
- (-5, 6)
 - (-5, 0)
 - (7, 0)
 - (7, -5)
 - (-10, -5)
 
 - 
                Right-click at (-10, 6) to close the polygon.
                
Figure 1. View of the model in the XY plane (top view) showing the outer walls. 
Note: All outer surfaces (including the floor and ceiling) of the building are created. The material is brick with a thickness of 10 cm. - 
                Exit the draw mode using one of the following workflows:
                
- On the Objects menu, click .
 - On the Objects toolbar, click
                        the 
                        Select Object icon. - Press F10 to use the keyboard shortcut.