Package Vrml2Sourcebook.Chapter13PointsLinesFaces
Points, lines and mesh faces allow authors to build a complete variety of geometry.
Complex shapes are hard to build with primitive shapes (for example: terrain, animals, plants, machinery). Instead, build shapes out of atomic components: points, lines, and polygon faces. Shape building is like a 3D connect-the-dots game: place dots at 3D locations, and connect-the-dots to form shapes A coordinate specifies a 3D dot location, measured relative to a coordinate system origin. A geometry node then specifies how to connect the dots: for example, PointSet, IndexedLineSet, or IndexedFaceSet. Animation is accomplished using a CoordinateInterpolator node.
These X3D scenes are adapted directly from the original VRML 2.0 Sourcebook chapter examples. Also available: Introduction to VRML97 SIGGRAPH98 course notes.
This X3D VRML2 Sourcebook Chapter 13 Points Lines Faces examples archive is online.
The X3D Java Scene Access Interface (x3djsail) package provides concrete classes for each X3D node and statement.
Online: X3D Java Scene Access Interface Library (X3DJSAIL) and X3DJSAIL Javadoc
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ClassesClassDescriptionPoints in an IndexedPointSet mark the eight corners of a box.A simple wireframe cube drawn with IndexedLineSet.A simple solid cube drawn with IndexedFaceSet.A 3D lightning bolt using concave faces.A nonsolid vaulted ceiling piece.A smoothly shaded vaulted ceiling piece.A vaulted ceiling piece used repeatedly to build part of a medieval building.A morphing cube shape using IndexedFaceSet and CoordinateInterpolator.A morphing cube shape using IndexedLineSet and CoordinateInterpolator.