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See also: Near shadings, general organisation.

PVsyst proposes a library of elementary shapes, basic or usual in architecture:

-        2D shapes: Triangles (whatever, isosceles or rectangle), rectangles, trapezium, regular polygon, pseudo-circle sectors.

-        3D shapes: Parallelepiped, square pyramid, triangular, hexagonal or octogonal prism, portion of cylinder.

-        Building elements: House + 2-sided roof, Tree, Roof-like diedre, 2-sided roof+gables, 4-sided roof, prism chimney.

The "Elementary object" dialog allows to build one elementary object at a time in it's own referential. The user chooses the shape and size either by using available parameters, or by dragging significant points in the orthogonal views (plane, side or front views).

You can choose a custom colour for each elementary object. Remember that the chosen colour will be that at bright sun. In the global scene, surfaces not facing the sun will appear darker.

More complex objects are obtained by assembling elementary objects. This can be achieved in the Building/Composed objects dialog.

The "Elementary object" is then positioned in the general scene or in a "building" element.

Defining a meaningful comment is not obligatory; it will help identifying the object afterwards in the global scene.

Please note that internal representation of objects is built up with 3D-Points and Surfaces built with these summits, so that curves should be approximated by broken lines.