Industrial automation systems and integration —
Product data representation and exchange —
Part 518:
Application interpreted construct: Mechanical design shaded presentation

1 Scope

• the visual presentation of mechanical design shape representations;
• the assignment of visual presentation attributes to geometric and topological items;
• algorithms for the projection of 3D shapes onto planes;
• the location of shape projections within a window;
• multiple views within one window;
• the background colour of a window;
• hidden line and hidden surface removal;
• light sources;
• point, curve, and surface colour;
• point font;
• curve font;
• curve styles dependent on the role of the curves in the definition of a surface;

  EXAMPLE    Boundary curves and grid curves play different roles in the definition of a surface.

• shaded and unshaded surface colour;
• surface characteristics such as transparency and reflectance;
• pre-defined colours;
• pre-defined curve styles.

The following are outside the scope of this part of ISO 10303:

• the presentation of annotation, i.e. text and symbols;
• the assignment of geometric items to layers;
• multiple windows;
• representation of products.

  NOTE    The scope of this part of ISO 10303 is closely related to ISO 10303-517. This part extends the scope of ISO 10303-517 to also include hidden line and hidden surface representations, light sources, and curve and surface rendering.

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