Modeling Windows

Windows are modeled on the XZ plane as assemblies the origins of which are in the upper left corner and in the middle of the frame in the depth direction. Model windows as lightly as possible, avoiding unnecessary history steps.

Line width and layer

The line width of lines should be 0.13.

Surfaces

Windows have the same surface naming practice as doors.

Variables

Windows can be fully variable. The basic variables are width (ROW) and height (ROH), from which all other widths and heights are calculated using dimension variable formulas.

Frame

The first part to be modeled is the frame, modeled in the same way as with doors. The origin must be in the middle of the frame, in the upper left corner as seen from the outside. The window may not move in relation to the origin when the dimensions change.

The frame's width variable is ROW and the height variable is ROH. The frame is extruded in both directions. The extrusion thickness is FRAME_THICK.

Name the frame surfaces as follows:

• Exterior wall surface CASE_EXT
• Interior wall surface CASE_INT

Once the frame has been extruded, a line going around the outer edge of the frame is added to it. This line is added on layer 101. When the window is added to the building model, the program will create a hole in the wall based on this line. The line is created as its own sketch on the frame surface, and made into a guide curve.

Sash

The window sash(es) and the glass panes form a subassembly. Model the sash and glass pane and fix them together with constraints. Name the sash surfaces as follows:

• Interior surface BODY_INT
• Exterior surface BODY_EXT

Name the glass pane surfaces as follows:

• Exterior surface GLASS_EXT
• Interior surface GLASS_INT

Multiple-light windows

If there is more than one opening in the window frame, you must define separate variables for the openings. For a vertical window, for example, UPH and MIDH, and for a horizontal window LEFTW and RIGHTW.