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- __builtin__.object
-
- Object
-
- Point
-
- Vertex
- Segment
-
- Edge
- Surface
- Triangle
-
- Face
class Edge(Segment) |
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Edge object
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- Method resolution order:
- Edge
- Segment
- Object
- __builtin__.object
Methods defined here:
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- contacts(...)
- Returns number of sets of connected triangles share this Edge e
as a contact Edge.
Signature: e.contacts().
- face_number(...)
- Returns number of faces using this Edge e on Surface s.
Signature: e.face_number(s).
- is_ok(...)
- True if this Edge e is not degenerate or duplicate.
False otherwise. Degeneracy implies e.v1.id == e.v2.id.
Signature: e.is_ok().
- is_unattached(...)
- True if this Edge e is not part of any Triangle.
Signature: e.is_unattached().
Data and other attributes defined here:
- __new__ = <built-in method __new__ of type object at 0x7566e0>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
Methods inherited from Segment:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- connects(...)
- Returns True if this Segment s1 connects Vertices v1 and v2.
False otherwise.
Signature: s1.connects(v1,v2).
- intersection(...)
- Returns the intersection of Segment s with Triangle t
This function is geometrically robust in the sense that it will
return None if s and t do not intersect and will return a
Vertex if they do. However, the point coordinates are subject
to round-off errors. None will be returned if s is contained
in the plane defined by t.
Signature: s.intersection(t) or s.intersection(t,boundary).
If boundary is True (default), the boundary of s is taken into
account.
Returns a summit of t (if boundary is True), one of the endpoints
of s, a new Vertex at the intersection of s with t, or None if
s and t don't intersect.
- intersects(...)
- Checks if this Segment s1 intersects with Segment s2.
Returns 1 if they intersect, 0 if an endpoint of one Segment lies
on the other Segment, -1 otherwise
Signature: s1.intersects(s2).
- midvertex(...)
- Returns a new Vertex at the mid-point of this Segment s.
Signature: s.midvertex().
- touches(...)
- Returns True if this Segment s1 touches Segment s2
(i.e., they share a common Vertex). False otherwise.
Signature: s1.touches(s2).
Data descriptors inherited from Segment:
- v1
- Vertex 1
- v2
- Vertex 2
Data descriptors inherited from Object:
- id
- GTS object id
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class Face(Triangle) |
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Face object
|
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- Method resolution order:
- Face
- Triangle
- Object
- __builtin__.object
Methods defined here:
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- is_compatible(...)
- True if Face f is compatible with all neighbors in Surface s.
False otherwise.
Signature: f.is_compatible(s).
- is_ok(...)
- True if this Face f is non-degenerate and non-duplicate.
False otherwise.
Signature: f.is_ok()
- is_on(...)
- True if this Face f is on Surface s. False otherwise.
Signature: f.is_on(s).
- is_unattached(...)
- True if this Face f is not part of any Surface.
Signature: f.is_unattached().
- neighbor_number(...)
- Returns the number of neighbors of Face f belonging to Surface s.
Signature: f.neighbor_number(s).
- neighbors(...)
- Returns a tuple of neighbors of this Face f belonging to Surface s.
Signature: f.neighbors(s).
Data and other attributes defined here:
- __new__ = <built-in method __new__ of type object at 0x756a20>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
Methods inherited from Triangle:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- angle(...)
- Returns the angle (radians) between Triangles t1 and t2
Signature: t1.angle(t2)
- area(...)
- Returns the area of Triangle t.
Signature: t.area()
- circumcenter(...)
- Returns a Vertex at the center of the circumscribing circle of
this Triangle t, or None if the circumscribing circle is not
defined.
Signature: t.circumcircle_center()
- common_edge(...)
- Returns Edge common to both this Triangle t1 and other t2.
Returns None if the triangles do not share an Edge.
Signature: t1.common_edge(t2)
- normal(...)
- Returns a tuple of coordinates of the oriented normal of Triangle t
as the cross-product of two edges, using the left-hand rule. The
normal is not normalized. If this triangle is part of a closed and
oriented surface, the normal points to the outside of the surface.
Signature: t.normal()
- opposite(...)
- Returns Vertex opposite to Edge e or Edge opposite to Vertex v
for this Triangle t.
Signature: t.opposite(e) or t.opposite(v)
- orientation(...)
- Determines orientation of the plane (x,y) projection of Triangle t
Signature: t.orientation()
Returns a positive value if Points p1, p2 and p3 in Triangle t
appear in counterclockwise order, a negative value if they appear
in clockwise order and zero if they are colinear.
- perimeter(...)
- Returns the perimeter of Triangle t.
Signature: t.perimeter()
- quality(...)
- Returns the quality of Triangle t.
The quality of a triangle is defined as the ratio of the square
root of its surface area to its perimeter relative to this same
ratio for an equilateral triangle with the same area. The quality
is then one for an equilateral triangle and tends to zero for a
very stretched triangle.
Signature: t.quality()
- revert(...)
- Changes the orientation of triangle t, turning it inside out.
Signature: t.revert()
- vertices(...)
- Returns the three oriented set of vertices in Triangle t.
Signature: t.orientation()
Data descriptors inherited from Triangle:
- e1
- Edge 1
- e2
- Edge 2
- e3
- Edge 3
Data descriptors inherited from Object:
- id
- GTS object id
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class Point(Object) |
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Point object
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- Method resolution order:
- Point
- Object
- __builtin__.object
Methods defined here:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- closest(...)
- Set the coordinates of Point p to the Point on Segment s
or Triangle t closest to the Point p2
Signature: p.closest(s,p2) or p.closest(t,p2)
Returns the (modified) Point p.
- distance(...)
- Returns Euclidean distance between this Point p and other Point p2,
Segment s, or Triangle t.
Signature: p.distance(p2), p.distance(s) or p.distance(t)
- distance2(...)
- Returns squared Euclidean distance between Point p and Point p2,
Segment s, or Triangle t.
Signature: p.distance2(p2), p.distance2(s), or p.distance2(t)
- get(...)
- Gets x, y, and z coordinates of this Point p.
Signature: p.get(x,y,z)
- is_in(...)
- Tests if this Point p is inside or outside Triangle t.
The planar projection (x,y) of Point p is tested against the
planar projection of Triangle t.
Signature: p.in_circle(p1,p2,p3) or p.in_circle(t)
Returns a +1 if p lies inside, -1 if p lies outside, and 0
if p lies on the triangle.
- is_in_circle(...)
- Tests if this Point p is inside or outside circumcircle.
The planar projection (x,y) of Point p is tested against the
circumcircle defined by the planar projection of p1, p2 and p3,
or alternatively the Triangle t
Signature: p.in_circle(p1,p2,p3) or p.in_circle(t)
Returns +1 if p lies inside, -1 if p lies outside, and 0 if p lies
on the circle. The Points p1, p2, and p3 must be in
counterclockwise order, or the sign of the result will be reversed.
- is_in_rectangle(...)
- True if this Point p is in box with bottom-left and upper-right
Points p1 and p2.
Signature: p.is_in_rectange(p1,p2)
- is_inside(...)
- True if this Point p is inside or outside Surface s.
False otherwise.
Signature: p.in_inside(s)
- is_ok(...)
- True if this Point p is OK. False otherwise.
This method is useful for unit testing and debugging.
Signature: p.is_ok().
- orientation_3d(...)
- Determines if this Point p is above, below or on plane of 3 Points
p1, p2 and p3.
Signature: p.orientation_3d(p1,p2,p3)
Below is defined so that p1, p2 and p3 appear in counterclockwise
order when viewed from above the plane.
The return value is positive if p4 lies below the plane, negative
if p4 lies above the plane, and zero if the four points are
coplanar. The value is an approximation of six times the signed
volume of the tetrahedron defined by the four points.
- orientation_3d_sos(...)
- Determines if this Point p is above, below or on plane of 3 Points
p1, p2 and p3.
Signature: p.orientation_3d_sos(p1,p2,p3)
Below is defined so that p1, p2 and p3 appear in counterclockwise
order when viewed from above the plane.
The return value is +1 if p4 lies below the plane, and -1 if p4
lies above the plane. Simulation of Simplicity (SoS) is used to
break ties when the orientation is degenerate (i.e. the point lies
on the plane definedby p1, p2 and p3).
- rotate(...)
- Rotates Point p around vector dx,dy,dz by angle a.
The sense of the rotation is given by the right-hand-rule.
Signature: p.rotate(dx=0,dy=0,dz=0,a=0)
- scale(...)
- Scales Point p by vector dx,dy,dz.
Signature: p.scale(dx=1,dy=1,dz=1)
- set(...)
- Sets x, y, and z coordinates of this Point p.
Signature: p.set(x,y,z)
- translate(...)
- Translates Point p by vector dx,dy,dz.
Signature: p.translate(dx=0,dy=0,dz=0)
Data descriptors defined here:
- x
- x value
- y
- y value
- z
- z value
Data and other attributes defined here:
- __new__ = <built-in method __new__ of type object at 0x756160>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
Methods inherited from Object:
- is_unattached(...)
- True if this Object o is not attached to another Object.
Otherwise False.
Trace: o.is_unattached().
Data descriptors inherited from Object:
- id
- GTS object id
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class Segment(Object) |
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Segment object
|
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- Method resolution order:
- Segment
- Object
- __builtin__.object
Methods defined here:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- connects(...)
- Returns True if this Segment s1 connects Vertices v1 and v2.
False otherwise.
Signature: s1.connects(v1,v2).
- intersection(...)
- Returns the intersection of Segment s with Triangle t
This function is geometrically robust in the sense that it will
return None if s and t do not intersect and will return a
Vertex if they do. However, the point coordinates are subject
to round-off errors. None will be returned if s is contained
in the plane defined by t.
Signature: s.intersection(t) or s.intersection(t,boundary).
If boundary is True (default), the boundary of s is taken into
account.
Returns a summit of t (if boundary is True), one of the endpoints
of s, a new Vertex at the intersection of s with t, or None if
s and t don't intersect.
- intersects(...)
- Checks if this Segment s1 intersects with Segment s2.
Returns 1 if they intersect, 0 if an endpoint of one Segment lies
on the other Segment, -1 otherwise
Signature: s1.intersects(s2).
- is_ok(...)
- True if this Segment s is not degenerate or duplicate.
False otherwise. Degeneracy implies s.v1.id == s.v2.id.
Signature: s.is_ok().
- midvertex(...)
- Returns a new Vertex at the mid-point of this Segment s.
Signature: s.midvertex().
- touches(...)
- Returns True if this Segment s1 touches Segment s2
(i.e., they share a common Vertex). False otherwise.
Signature: s1.touches(s2).
Data descriptors defined here:
- v1
- Vertex 1
- v2
- Vertex 2
Data and other attributes defined here:
- __new__ = <built-in method __new__ of type object at 0x756560>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
Methods inherited from Object:
- is_unattached(...)
- True if this Object o is not attached to another Object.
Otherwise False.
Trace: o.is_unattached().
Data descriptors inherited from Object:
- id
- GTS object id
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class Surface(Object) |
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Surface object
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- Method resolution order:
- Surface
- Object
- __builtin__.object
Methods defined here:
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- __iter__(...)
- x.__iter__() <==> iter(x)
- add(...)
- Adds Face f to Surface s.
Signature: s.add(f)
- area(...)
- Returns the area of Surface s.
The area is taken as the sum of the signed areas of the Faces of s.
Signature: s.area()
- center_of_area(...)
- Returns the coordinates of the center of area of Surface s.
Signature: s.center_of_area()
- center_of_mass(...)
- Returns the coordinates of the center of mass of Surface s.
Signature: s.center_of_mass()
- copy(...)
- Copys all Faces, Edges and Vertices of Surface s2 to Surface s1.
Signature: s1.copy(s2)
Returns s1.
- difference(...)
- Returns the difference of this Surface s1 with Surface s2.
Signature: s1.difference(s2)
- face_indices(...)
- Returns a tuple of 3-tuples containing Vertex indices for each Face
in Surface s. The index for each Vertex in a face corresponds to
where it is found in the Vertex tuple vs.
Signature: s.face_indices(vs)
- intersection(...)
- Returns the intersection of this Surface s1 with Surface s2.
Signature: s1.intersection(s2)
- is_closed(...)
- True if Surface s is closed, False otherwise.
Note that a closed Surface is also a manifold.
Signature: s.is_closed()
- is_manifold(...)
- True if Surface s is a manifold, False otherwise.
Signature: s.is_manifold()
- is_ok(...)
- True if this Surface s is OK. False otherwise.
Signature: s.is_ok()
- is_orientable(...)
- True if Faces in Surface s have compatible orientation,
False otherwise.
Note that a closed surface is also a manifold. Note that an
orientable surface is also a manifold.
Signature: s.is_orientable()
- is_self_intersecting(...)
- Returns True if this Surface s is self-intersecting.
False otherwise.
Signature: s.is_self_intersecting()
- merge(...)
- Adds faces of Surface s2 which do not belong to Surface s1 to s1.
Signature: s1.merge(s2)
- next(...)
- x.next() -> the next value, or raise StopIteration
- quality_stats(...)
- Returns quality statistics for this Surface f in a dict.
The statistics include the {min, max, sum, sum2, mean, stddev,
and n} for populations of face_quality, face_area, edge_length,
and edge_angle. Each of these names are dictionary keys.
See Triangle.quality() for an explanation of the face_quality.
Signature: s.quality_stats()
- read(...)
- Adds to Surface s the data read from File f.
The File data must be stored in GTS format (e.g., by using.
s.write())
Signature: s.read(f)
- remove(...)
- Removes Face f to Surface s.
Signature: s.remove(f)
- rotate(...)
- Rotates Surface s about vector dx,dy,dz and angle a.
The sense of the rotation is given by the right-hand-rule.
Signature: s.rotate(dx,dy,dz,a)
- scale(...)
- Scales Surface s by vector dx,dy,dz.
Signature: s.scale(dx=1,dy=1,dz=1)
- split(...)
- Splits a surface into a tuple of connected and manifold components.
Signature: s.split()
- stats(...)
- Returns statistics for this Surface f in a dict.
The stats include n_faces, n_incompatible_faces,, n_boundary_edges,
n_non_manifold_edges, and the statisics {min, max, sum, sum2, mean,
stddev, and n} for populations of edges_per_vertex and
faces_per_edge. Each of these names are dictionary keys.
Signature: s.stats()
- strip(...)
- Returns a tuple of strips, where each strip is a tuple of Faces
that are successive and have one edge in common.
Signature: s.split()
- tessellate(...)
- Tessellate each face of this Surface s with 4 triangles.
The number of triangles is increased by a factor of 4.
Signature: s.tessellate()
- translate(...)
- Translates Surface s by vector dx,dy,dz.
Signature: s.translate(dx=0,dy=0,dz=0)
- union(...)
- Returns the union of this Surface s1 with Surface s2.
Signature: s1.union(s2)
- vertices(...)
- Returns a tuple containing the vertices of Surface s.
Signature: s.vertices()
- volume(...)
- Returns the signed volume of the domain bounded by the Surface s.
Signature: s.volume()
- write(...)
- Saves Surface s to File f in GTS ascii format.
All the lines beginning with #! are ignored.
Signature: s.write(f)
Data descriptors defined here:
- Nedges
- The number of unique edges
- Nfaces
- The number of unique faces
- Nvertices
- The number of unique vertices
Data and other attributes defined here:
- __new__ = <built-in method __new__ of type object at 0x756b80>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
Methods inherited from Object:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- is_unattached(...)
- True if this Object o is not attached to another Object.
Otherwise False.
Trace: o.is_unattached().
Data descriptors inherited from Object:
- id
- GTS object id
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class Triangle(Object) |
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Triangle object
|
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- Method resolution order:
- Triangle
- Object
- __builtin__.object
Methods defined here:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- angle(...)
- Returns the angle (radians) between Triangles t1 and t2
Signature: t1.angle(t2)
- area(...)
- Returns the area of Triangle t.
Signature: t.area()
- circumcenter(...)
- Returns a Vertex at the center of the circumscribing circle of
this Triangle t, or None if the circumscribing circle is not
defined.
Signature: t.circumcircle_center()
- common_edge(...)
- Returns Edge common to both this Triangle t1 and other t2.
Returns None if the triangles do not share an Edge.
Signature: t1.common_edge(t2)
- is_compatible(...)
- True if this triangle t1 and other t2 are compatible;
otherwise False.
Checks if this triangle t1 and other t2, which share a common
Edge, can be part of the same surface without conflict in the
surface normal orientation.
Signature: t1.is_compatible(t2)
- is_ok(...)
- True if this Triangle t is non-degenerate and non-duplicate.
False otherwise.
Signature: t.is_ok()
- normal(...)
- Returns a tuple of coordinates of the oriented normal of Triangle t
as the cross-product of two edges, using the left-hand rule. The
normal is not normalized. If this triangle is part of a closed and
oriented surface, the normal points to the outside of the surface.
Signature: t.normal()
- opposite(...)
- Returns Vertex opposite to Edge e or Edge opposite to Vertex v
for this Triangle t.
Signature: t.opposite(e) or t.opposite(v)
- orientation(...)
- Determines orientation of the plane (x,y) projection of Triangle t
Signature: t.orientation()
Returns a positive value if Points p1, p2 and p3 in Triangle t
appear in counterclockwise order, a negative value if they appear
in clockwise order and zero if they are colinear.
- perimeter(...)
- Returns the perimeter of Triangle t.
Signature: t.perimeter()
- quality(...)
- Returns the quality of Triangle t.
The quality of a triangle is defined as the ratio of the square
root of its surface area to its perimeter relative to this same
ratio for an equilateral triangle with the same area. The quality
is then one for an equilateral triangle and tends to zero for a
very stretched triangle.
Signature: t.quality()
- revert(...)
- Changes the orientation of triangle t, turning it inside out.
Signature: t.revert()
- vertices(...)
- Returns the three oriented set of vertices in Triangle t.
Signature: t.orientation()
Data descriptors defined here:
- e1
- Edge 1
- e2
- Edge 2
- e3
- Edge 3
Data and other attributes defined here:
- __new__ = <built-in method __new__ of type object at 0x756800>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
Methods inherited from Object:
- is_unattached(...)
- True if this Object o is not attached to another Object.
Otherwise False.
Trace: o.is_unattached().
Data descriptors inherited from Object:
- id
- GTS object id
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class Vertex(Point) |
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Vertex object
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- Method resolution order:
- Vertex
- Point
- Object
- __builtin__.object
Methods defined here:
- __init__(...)
- x.__init__(...) initializes x; see x.__class__.__doc__ for signature
- contacts(...)
- Returns the number of sets of connected Triangles sharing this
Vertex v.
Signature: v.contacts().
If sever is True (default: False) and v is a contact vertex then
the vertex is replaced in each Triangle with clones.
- encroaches(...)
- Returns True if this Vertex v is strictly contained in the
diametral circle of Edge e. False otherwise.
Only the projection onto the x-y plane is considered.
Signature: v.encroaches(e)
- faces(...)
- Returns a tuple of Faces that have this Vertex v.
If a Surface s is given, only Vertices on s are considered.
Signature: v.faces() or v.faces(s).
- is_boundary(...)
- True if this Vertex v is used by a boundary Edge of Surface s.
Signature: v.is_boundary().
- is_connected(...)
- Return True if this Vertex v1 is connected to Vertex v2
by a Segment.
Signature: v1.is_connected().
- is_ok(...)
- True if this Vertex v is OK. False otherwise.
This method is useful for unit testing and debugging.
Signature: v.is_ok().
- is_unattached(...)
- True if this Vertex v is not the endpoint of any Segment.
Signature: v.is_unattached().
- neighbors(...)
- Returns a tuple of Vertices attached to this Vertex v
by a Segment.
If a Surface s is given, only Vertices on s are considered.
Signature: v.neighbors() or v.neighbors(s).
- replace(...)
- Replaces this Vertex v1 with Vertex v2 in all segments that have v1.
Vertex v1 itself is left unchanged.
Signature: v1.replace(v2).
Data and other attributes defined here:
- __new__ = <built-in method __new__ of type object at 0x7563e0>
- T.__new__(S, ...) -> a new object with type S, a subtype of T
Methods inherited from Point:
- __cmp__(...)
- x.__cmp__(y) <==> cmp(x,y)
- closest(...)
- Set the coordinates of Point p to the Point on Segment s
or Triangle t closest to the Point p2
Signature: p.closest(s,p2) or p.closest(t,p2)
Returns the (modified) Point p.
- distance(...)
- Returns Euclidean distance between this Point p and other Point p2,
Segment s, or Triangle t.
Signature: p.distance(p2), p.distance(s) or p.distance(t)
- distance2(...)
- Returns squared Euclidean distance between Point p and Point p2,
Segment s, or Triangle t.
Signature: p.distance2(p2), p.distance2(s), or p.distance2(t)
- get(...)
- Gets x, y, and z coordinates of this Point p.
Signature: p.get(x,y,z)
- is_in(...)
- Tests if this Point p is inside or outside Triangle t.
The planar projection (x,y) of Point p is tested against the
planar projection of Triangle t.
Signature: p.in_circle(p1,p2,p3) or p.in_circle(t)
Returns a +1 if p lies inside, -1 if p lies outside, and 0
if p lies on the triangle.
- is_in_circle(...)
- Tests if this Point p is inside or outside circumcircle.
The planar projection (x,y) of Point p is tested against the
circumcircle defined by the planar projection of p1, p2 and p3,
or alternatively the Triangle t
Signature: p.in_circle(p1,p2,p3) or p.in_circle(t)
Returns +1 if p lies inside, -1 if p lies outside, and 0 if p lies
on the circle. The Points p1, p2, and p3 must be in
counterclockwise order, or the sign of the result will be reversed.
- is_in_rectangle(...)
- True if this Point p is in box with bottom-left and upper-right
Points p1 and p2.
Signature: p.is_in_rectange(p1,p2)
- is_inside(...)
- True if this Point p is inside or outside Surface s.
False otherwise.
Signature: p.in_inside(s)
- orientation_3d(...)
- Determines if this Point p is above, below or on plane of 3 Points
p1, p2 and p3.
Signature: p.orientation_3d(p1,p2,p3)
Below is defined so that p1, p2 and p3 appear in counterclockwise
order when viewed from above the plane.
The return value is positive if p4 lies below the plane, negative
if p4 lies above the plane, and zero if the four points are
coplanar. The value is an approximation of six times the signed
volume of the tetrahedron defined by the four points.
- orientation_3d_sos(...)
- Determines if this Point p is above, below or on plane of 3 Points
p1, p2 and p3.
Signature: p.orientation_3d_sos(p1,p2,p3)
Below is defined so that p1, p2 and p3 appear in counterclockwise
order when viewed from above the plane.
The return value is +1 if p4 lies below the plane, and -1 if p4
lies above the plane. Simulation of Simplicity (SoS) is used to
break ties when the orientation is degenerate (i.e. the point lies
on the plane definedby p1, p2 and p3).
- rotate(...)
- Rotates Point p around vector dx,dy,dz by angle a.
The sense of the rotation is given by the right-hand-rule.
Signature: p.rotate(dx=0,dy=0,dz=0,a=0)
- scale(...)
- Scales Point p by vector dx,dy,dz.
Signature: p.scale(dx=1,dy=1,dz=1)
- set(...)
- Sets x, y, and z coordinates of this Point p.
Signature: p.set(x,y,z)
- translate(...)
- Translates Point p by vector dx,dy,dz.
Signature: p.translate(dx=0,dy=0,dz=0)
Data descriptors inherited from Point:
- x
- x value
- y
- y value
- z
- z value
Data descriptors inherited from Object:
- id
- GTS object id
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