 | GeometryHelper Methods |
The GeometryHelper type exposes the following members.
Methods| Name | Description | |
|---|---|---|
  | ArePointsOnOppositeSides |
Determines whether two points P and Q are on opposite sides of a plane. The plane is
determined by three points (A, B, C).
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| ComputeBoundingBox |
Computes the minimum box that contains the given points.
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| ComputeBoundingCapsule |
Computes a tight-fitting capsule that contains the given points.
|
| ComputeBoundingSphere |
Computes the minimum sphere that contains the given points.
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| ComputeCircumscribedSphere(Vector3F, Vector3F, Single, Vector3F) |
Computes a sphere where all given points touch the surface.
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| ComputeCircumscribedSphere(Vector3F, Vector3F, Vector3F, Single, Vector3F) |
Computes a sphere where all given points touch the surface.
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| ComputeCircumscribedSphere(Vector3F, Vector3F, Vector3F, Vector3F, Single, Vector3F) |
Computes a sphere where all given points touch the surface.
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| CreateBoundingShape |
Computes a minimum bounding shape that contains all given points.
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| CreateConvexHull(IEnumerableVector3F) |
Creates a convex hull mesh for a set of points.
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| CreateConvexHull(IEnumerableVector3F, Int32, Single) |
Creates a convex hull mesh for a set of points.
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| CreateIcosphere |
Creates a sphere (or hemisphere) by successively subdividing an icosahedron.
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| ExtractPlanes(Matrix, IListPlane, Boolean) |
Extracts the viewing frustum planes of a world-view-projection matrix. (Only available in
the XNA-compatible build.)
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| ExtractPlanes(Matrix44F, IListPlane, Boolean) |
Extracts the viewing frustum planes of a world-view-projection matrix.
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| GetBarycentricFromPoint(Triangle, Vector3F, Single, Single, Single) |
Gets the barycentric coordinates of a point and a triangle.
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| GetBarycentricFromPoint(Triangle, Vector3F, Single, Single, Single) |
Determines whether the projection of a point (into the triangle plane) is inside the given
triangle. (This overload uses per-reference parameters for performance.)
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| GetClosestPoint(Aabb, Vector3F, Vector3F) |
Gets the point on or in an axis-aligned bounding box (AABB) that is closest to a given
point.
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| GetClosestPoint(Line, Vector3F, Vector3F) |
Gets the closest point of a line to a point.
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| GetClosestPoint(Plane, Vector3F, Vector3F) |
Gets the point on a plane surface that is closest to a given point.
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| GetClosestPoint(Triangle, Vector3F, Single, Single, Single) |
Gets the barycentric coordinates (u, v,
w of the point in a triangle which is closest to
the given point).
|
| GetClosestPoints(LineSegment, Vector3F, Vector3F) |
Gets the closest point of a line segment to a point.
|
| GetClosestPoints(Line, Line, Vector3F, Vector3F) |
Gets the closest points of two lines.
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| GetClosestPoints(LineSegment, Line, Vector3F, Vector3F) |
Gets the closest points of a line and a line segment.
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| GetClosestPoints(LineSegment, LineSegment, Vector3F, Vector3F) |
Gets the closest points of two line segments.
|
| GetClosestPoints(Plane, Line, Vector3F, Vector3F) |
Gets the closest points of a line and a plane.
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| GetClosestPoints(Plane, LineSegment, Vector3F, Vector3F) |
Gets the closest points of a line and a plane.
|
| GetContact |
Computes the ray vs. triangle contact.
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| GetDistance(Aabb, Aabb) |
Computes the distance between the two axis-aligned bounding boxes (AABBs).
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| GetDistance(Plane, Vector3F) |
Gets the signed distance of a point to a plane surface.
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| GetIntersection |
Gets the intersection point of three planes.
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| GetPointFromBarycentric |
Gets the point on the triangle defined by the given barycentric coordinates.
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| GetVolume |
Gets the enclosed volume of a triangle mesh.
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| HaveContact(Single, Vector3F) |
Determines whether the specified point is inside the sphere.
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| HaveContact(Aabb, Aabb) |
Determines whether two axis-aligned bounding boxes (AABBs) overlap.
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| HaveContact(Aabb, Plane) |
Determines whether the given axis-aligned bounding box (AABB) and plane overlap.
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| HaveContact(Aabb, Ray) |
Determines whether the given axis-aligned bounding box (AABB) and ray overlap.
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| HaveContact(Aabb, Vector3F) |
Determines whether the axis-aligned bounding box (AABB) contains or touches the given point.
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| HaveContact(Triangle, Triangle) |
Determines whether two triangles overlap.
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| HaveContact(Triangle, Triangle) |
Determines whether two triangles overlap.
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| HaveContact(Vector3F, Vector3F) |
Determines whether the specified point is inside the box.
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| HaveContact(Aabb, Aabb, Vector3F) |
Determines whether a given AABB is hit by a moving AABB.
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| HaveContact(Aabb, Ray, Single) |
Determines whether the given axis-aligned bounding box (AABB) and ray overlap.
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| HaveContact(Aabb, Vector3F, Pose, Boolean) |
Determines whether the axis-aligned bounding box (AABB) and a box have contact.
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| IsInFront |
Determines whether the point is in front of the triangle.
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| IsOver(Triangle, Vector3F) |
Determines whether the projection of a point (into the triangle plane) is inside the given
triangle.
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| IsOver(Triangle, Vector3F) |
Determines whether the projection of a point (into the triangle plane) is inside the given
triangle. (This overload uses per-reference parameters for performance.)
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| IsOver(Triangle, Vector3F, Single) |
Determines whether the projection of a point (into the triangle plane) is inside the given
triangle.
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| MergeDuplicatePositions(IListVector3F, Single) |
Merges duplicate positions.
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| MergeDuplicatePositions(IListVector3F, Single, Int32) |
Merges duplicate positions.
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| Triangulate(IListVector3F, IListInt32) |
Triangulates a polygon specified by a list of vertices.
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| Triangulate(IListVector3F, Int32, Int32, IListInt32) |
Triangulates a polygon specified by a list of vertices.
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See Also