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A cross-section is a sliced view through a designed unit — the drawing you
would see if you cut the window or door straight through and looked at the cut face. It shows the
profile sections (frame, sash, glazing bead, sealed unit, weather-strip bulbs, setting blocks) at
the cut plane, with dimension lines. Order entry draws cross-sections directly on the design
canvas with the V / H / × buttons on the designer’s top strip.
Two flavours of cross-section
| Flavour | Contents |
|---|---|
| Individual profile/part | The section of a single extrusion or part (a frame profile, a bulb gasket, etc.). |
| Block cross-section | A composite slice that includes everything the cut passes through — frame, bead, glass, weather-strip bulbs, setting blocks — each placed by its own rules. |
What setup involves
Cross-sections are rule-driven, like notching. An administrator provides two
ingredients, both covered in this chapter:
- An X-section unit part — a Unit Part that carries the SVG (or DXF) artwork of the
section. The part’s description is the image’s filename/path. - Placement rules (rule types 301–320) on the series — these orient and position each
section image when a cross-section is drawn.
Nothing is computed from the profile geometry itself: if a series has no X-section parts and
rules, the V/H buttons simply produce an empty section line. Once both ingredients exist, end
users need no further setup — see Drawing a cross-section on a design.