 WREC                                                               Menu: WALLS
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 Creates a rectangular wall frame and converts it to a rectangular room.

         1. * (POINT) starting point
         2. * (NUM) x dimension
         3. * (NUM) y dimension
         4. * (Y\N) wish to give height?

 Description:
 This command creates a rectangular wall frame that, given height, may be
 converted into a three-dimensional room.
 Pick a starting point and define the lengths along the x and y axes. The wall
 width and height are taken from the last \setwz or \wzwal commands. The walls
 are expanded into the third dimension if you reply "y" to the height prompt.
 You are prompted for additional frames and rooms until you select another
 command.

         Example: \wrec 0 0 0 4 7 y

 Result: The rectangle of the walls' axial lines has its lower-left corner on
 point 0 0 0 and measures 4 units along the x axis and 7 units along the y axis
