panda3d.core.CollisionPolygon¶
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class
CollisionPolygon¶ Bases:
CollisionPlaneInheritance diagram
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__init__(begin: LPoint3, end: LPoint3) → None¶
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__init__(a: LVecBase3, b: LVecBase3, c: LVecBase3) → None
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__init__(a: LVecBase3, b: LVecBase3, c: LVecBase3, d: LVecBase3) → None
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getNumPoints() → size_t¶ Returns the number of vertices of the CollisionPolygon.
- Return type
size_t
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getPoint(n: size_t) → LPoint3¶ Returns the nth vertex of the CollisionPolygon, expressed in 3-D space.
- Return type
LPoint3
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static
verifyPoints(begin: LPoint3, end: LPoint3) → bool¶ Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.
This does not check that the polygon defined is convex; that check is made later, once we have projected the points to 2-d space where the decision is easier.
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static
verifyPoints(a: LPoint3, b: LPoint3, c: LPoint3) → bool Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.
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static
verifyPoints(a: LPoint3, b: LPoint3, c: LPoint3, d: LPoint3) → bool Verifies that the indicated set of points will define a valid CollisionPolygon: that is, at least three non-collinear points, with no points repeated.
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isValid() → bool¶ Returns true if the CollisionPolygon is valid (that is, it has at least three vertices), or false otherwise.
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isConcave() → bool¶ Returns true if the CollisionPolygon appears to be concave, or false if it is safely convex.
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static
getClassType() → TypeHandle¶ - Return type
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getPoints() → list¶
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property
points¶ Returns the nth vertex of the CollisionPolygon, expressed in 3-D space.
- Return type
Sequence[LPoint3]
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property
valid¶ Returns true if the CollisionPolygon is valid (that is, it has at least three vertices), or false otherwise.
- Return type
bool
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property
concave¶ Returns true if the CollisionPolygon appears to be concave, or false if it is safely convex.
- Return type
bool
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