Description
The MPEG-4 primitive to display graphical objects on screen is the Shape node.This node has a child node contained in its geometry property.
This test shows the possible 2D nodes allowed in this geometry property:
* Rectangle: its only property is its size (WxH). The origin of its local coordinate system is the center of the rectangle.
* Circle: its only property is its radius. The origin of its local coordinate system is the center of the circle.
* IndexedLineSet2D: this node is used to draw polylines. This geometry is not considered closed, even if last point = first point, so it cannot be filled. The origin of its local coordinate system is the point of coordinate (0,0).
* IndexedFaceSet2D: this node is similar to IndexedLineSet2D. It is used to display polygons (i.e. a list of segments implicitely closed by the segment [last point, first point]). The origin of its local coordinate system is the point of coordinate (0,0).
See also bifs-2D-shapes-indexfaceset2D
* Curve2D: this node is used to display complex paths using Bezier Curves, has two properties: type, points. Type gives the drawing types (segments or bezier), points gives the list of points to be consumed when reading the types. The node XCurve2D allows more drawing types (elliptical arcs ...)
See also bifs-2D-shapes-xcurve2D
* PointSet2D: a list of points to be displayed (not really useful)
GPAC Regression Tests
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