removing epydocs for mathutils and geometry mododules (now they are in sphinx)
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Campbell Barton
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# Blender.Geometry module and its subtypes
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"""
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The Blender.Geometry submodule.
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Geometry
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========
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(when accessing it from the Game Engine use Geometry instead of Blender.Geometry)
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This new module provides access to a geometry function.
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"""
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def Intersect(vec1, vec2, vec3, ray, orig, clip=1):
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"""
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Return the intersection between a ray and a triangle, if possible, return None otherwise.
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@type vec1: Vector object.
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@param vec1: A 3d vector, one corner of the triangle.
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@type vec2: Vector object.
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@param vec2: A 3d vector, one corner of the triangle.
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@type vec3: Vector object.
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@param vec3: A 3d vector, one corner of the triangle.
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@type ray: Vector object.
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@param ray: A 3d vector, the orientation of the ray. the length of the ray is not used, only the direction.
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@type orig: Vector object.
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@param orig: A 3d vector, the origin of the ray.
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@type clip: integer
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@param clip: if 0, don't restrict the intersection to the area of the triangle, use the infinite plane defined by the triangle.
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@rtype: Vector object
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@return: The intersection between a ray and a triangle, if possible, None otherwise.
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"""
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def TriangleArea(vec1, vec2, vec3):
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"""
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Return the area size of the 2D or 3D triangle defined.
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@type vec1: Vector object.
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@param vec1: A 2d or 3d vector, one corner of the triangle.
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@type vec2: Vector object.
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@param vec2: A 2d or 3d vector, one corner of the triangle.
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@type vec3: Vector object.
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@param vec3: A 2d or 3d vector, one corner of the triangle.
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@rtype: float
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@return: The area size of the 2D or 3D triangle defined.
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"""
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def TriangleNormal(vec1, vec2, vec3):
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"""
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Return the normal of the 3D triangle defined.
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@type vec1: Vector object.
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@param vec1: A 3d vector, one corner of the triangle.
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@type vec2: Vector object.
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@param vec2: A 3d vector, one corner of the triangle.
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@type vec3: Vector object.
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@param vec3: A 3d vector, one corner of the triangle.
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@rtype: float
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@return: The normal of the 3D triangle defined.
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"""
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def QuadNormal(vec1, vec2, vec3, vec4):
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"""
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Return the normal of the 3D quad defined.
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@type vec1: Vector object.
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@param vec1: A 3d vector, the first vertex of the quad.
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@type vec2: Vector object.
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@param vec2: A 3d vector, the second vertex of the quad.
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@type vec3: Vector object.
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@param vec3: A 3d vector, the third vertex of the quad.
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@type vec4: Vector object.
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@param vec4: A 3d vector, the fourth vertex of the quad.
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@rtype: float
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@return: The normal of the 3D quad defined.
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"""
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def LineIntersect(vec1, vec2, vec3, vec4):
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"""
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Return a tuple with the points on each line respectively closest to the other
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(when both lines intersect, both vector hold the same value).
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The lines are evaluated as infinite lines in space, the values returned may not be between the 2 points given for each line.
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@type vec1: Vector object.
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@param vec1: A 3d vector, one point on the first line.
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@type vec2: Vector object.
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@param vec2: A 3d vector, another point on the first line.
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@type vec3: Vector object.
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@param vec3: A 3d vector, one point on the second line.
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@type vec4: Vector object.
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@param vec4: A 3d vector, another point on the second line.
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@rtype: (Vector object, Vector object)
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@return: A tuple with the points on each line respectively closest to the other.
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"""
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def PolyFill(polylines):
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"""
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Takes a list of polylines and calculates triangles that would fill in the polylines.
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Multiple lines can be used to make holes inside a polyline, or fill in 2 separate lines at once.
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@type polylines: List of lists containing vectors, each representing a closed polyline.
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@rtype: list
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@return: a list if tuples each a tuple of 3 ints representing a triangle indexing the points given.
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@note: 2D Vectors will have an assumed Z axis of zero, 4D Vectors W axis is ignored.
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@note: The order of points in a polyline effect the direction returned triangles face, reverse the order of a polyline to flip the normal of returned faces.
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I{B{Example:}}
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The example below creates 2 polylines and fills them in with faces, then makes a mesh in the current scene::
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import Blender
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Vector= Blender.mathutils.Vector
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# Outline of 5 points
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polyline1= [Vector(-2.0, 1.0, 1.0), Vector(-1.0, 2.0, 1.0), Vector(1.0, 2.0, 1.0), Vector(1.0, -1.0, 1.0), Vector(-1.0, -1.0, 1.0)]
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polyline2= [Vector(-1, 1, 1.0), Vector(0, 1, 1.0), Vector(0, 0, 1.0), Vector(-1.0, 0.0, 1.0)]
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fill= Blender.Geometry.PolyFill([polyline1, polyline2])
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# Make a new mesh and add the truangles into it
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me= Blender.Mesh.New()
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me.verts.extend(polyline1)
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me.verts.extend(polyline2)
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me.faces.extend(fill) # Add the faces, they reference the verts in polyline 1 and 2
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scn = Blender.Scene.GetCurrent()
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ob = scn.objects.new(me)
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Blender.Redraw()
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"""
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def LineIntersect2D(vec1, vec2, vec3, vec4):
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"""
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Takes 2 lines vec1, vec2 for the 2 points of the first line and vec2, vec3 for the 2 points of the second line.
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@rtype: Vector
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@return: a 2D Vector for the intersection or None where there is no intersection.
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"""
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def ClosestPointOnLine(pt, vec1, vec2):
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"""
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Takes 2 lines vec1, vec2 for the 2 points of the first line and vec2, vec3 for the 2 points of the second line.
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@rtype: tuple
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@return: a tuple containing a vector and a float, the vector is the closest point on the line, the float is the position on the line, between 0 and 1 the point is on the line.
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"""
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def PointInTriangle2D(pt, tri_pt1, tri_pt2, tri_pt3):
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"""
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Takes 4 vectors (one for the test point and 3 for the triangle)
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This is a 2d function so only X and Y are used, Z and W will be ignored.
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@rtype: int
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@return: 1 for a clockwise intersection, -1 for counter clockwise intersection, 0 when there is no intersection.
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"""
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def PointInQuad2D(pt, quad_pt1, quad_pt2, quad_pt3):
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"""
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Takes 5 vectors (one for the test point and 5 for the quad)
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This is a 2d function so only X and Y are used, Z and W will be ignored.
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@rtype: int
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@return: 1 for a clockwise intersection, -1 for counter clockwise intersection, 0 when there is no intersection.
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"""
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def BoxPack2D(boxlist):
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"""
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Takes a list of 2D boxes and packs them into a square.
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Each box in boxlist must be a list of at least 4 items - [x,y,w,h], after running this script,
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the X and Y values in each box will be moved to packed, non overlapping locations.
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Example::
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# Make 500 random boxes, pack them and make a mesh from it
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from Blender import Geometry, Scene, Mesh
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import random
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boxes = []
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for i in xrange(500):
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boxes.append( [0,0, random.random()+0.1, random.random()+0.1] )
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boxsize = Geometry.BoxPack2D(boxes)
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print 'BoxSize', boxsize
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me = Mesh.New()
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for x in boxes:
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me.verts.extend([(x[0],x[1], 0), (x[0],x[1]+x[3], 0), (x[0]+x[2],x[1]+x[3], 0), (x[0]+x[2],x[1], 0) ])
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v1= me.verts[-1]
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v2= me.verts[-2]
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v3= me.verts[-3]
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v4= me.verts[-4]
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me.faces.extend([(v1,v2,v3,v4)])
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scn = Scene.GetCurrent()
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scn.objects.new(me)
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@note: Each boxlist item can be longer then 4, the extra items are ignored and stay untouched.
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@rtype: tuple
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@return: a tuple pair - (width, height) of all the packed boxes.
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"""
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def BezierInterp(vec_knot_1, vec_handle_1, vec_handle_2, vec_knot_2, resolution):
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"""
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Takes 4 vectors representing a bezier curve and returns a list of vector points.
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@note: any vector size is supported, the largest dimension from the input will be used for all returned vectors/
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@rtype: list
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@return: a list of vectors the size of resolution including the start and end points (vec_knot_1 and vec_knot_2)
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"""
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# Blender.mathutils module and its subtypes
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class Vector:
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"""
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@attention: Vector data can be wrapped or non-wrapped. When a object is wrapped it
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means that the object will give you direct access to the data inside of blender. Modification
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of this object will directly change the data inside of blender. To copy a wrapped object
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you need to use the object's constructor. If you copy and object by assignment you will not get
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a second copy but a second reference to the same data. Only certain functions will return
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wrapped data. This will be indicated in the method description.
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"""
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def __init__(list = None):
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"""
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Create a new 2d, 3d, or 4d Vector object from a list of floating point numbers.
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@note: that python uses higher precission floating point numbers, so values assigned to a vector may have some rounding error.
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Example::
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v = Vector(1,0,0)
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v = Vector(myVec)
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v = Vector(list)
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@type list: PyList of float or int
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@param list: The list of values for the Vector object. Can be a sequence or raw numbers.
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Must be 2, 3, or 4 values. The list is mapped to the parameters as [x,y,z,w].
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@rtype: Vector object.
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@return: It depends wheter a parameter was passed:
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- (list): Vector object initialized with the given values;
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- (): An empty 3 dimensional vector.
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"""
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class Euler:
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"""
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The Euler object
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================
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This object gives access to Eulers in Blender.
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@note: You can access a euler object like a sequence
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- x = euler[0]
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@note: Comparison operators can be done:
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- ==, != test numeric values within epsilon
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@attention: Euler data can be wrapped or non-wrapped. When a object is wrapped it
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means that the object will give you direct access to the data inside of blender. Modification
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of this object will directly change the data inside of blender. To copy a wrapped object
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you need to use the object's constructor. If you copy and object by assignment you will not get
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a second copy but a second reference to the same data. Only certain functions will return
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wrapped data. This will be indicated in the method description.
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"""
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def __init__(list = None):
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"""
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Create a new euler object.
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Example::
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euler = Euler(45,0,0)
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euler = Euler(myEuler)
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euler = Euler(sequence)
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@type list: PyList of float/int
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@param list: 3d list to initialize euler
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@rtype: Euler object
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@return: Euler representing heading, pitch, bank.
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@note: Values are in degrees.
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"""
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class Quaternion:
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"""
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The Quaternion object
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=====================
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This object gives access to Quaternions in Blender.
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@note: Comparison operators can be done:
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- ==, != test numeric values within epsilon
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@note: Math can be performed on Quaternion classes
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- quat + quat
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- quat - quat
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- quat * float/int
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- quat * vec
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- quat * quat
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@note: You can access a quaternion object like a sequence
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- x = quat[0]
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@attention: Quaternion data can be wrapped or non-wrapped. When a object is wrapped it
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means that the object will give you direct access to the data inside of blender. Modification
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of this object will directly change the data inside of blender. To copy a wrapped object
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you need to use the object's constructor. If you copy and object by assignment you will not get
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a second copy but a second reference to the same data. Only certain functions will return
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wrapped data. This will be indicated in the method description.
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"""
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def __init__(list, angle = None):
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"""
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Create a new quaternion object from initialized values.
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Example::
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quat = Quaternion(1,2,3,4)
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quat = Quaternion(axis, angle)
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quat = Quaternion()
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quat = Quaternion(180, list)
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@type list: PyList of int/float
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@param list: A 3d or 4d list to initialize quaternion.
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4d if intializing [w,x,y,z], 3d if used as an axis of rotation.
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@type angle: float (optional)
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@param angle: An arbitrary rotation amount around 'list'.
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List is used as an axis of rotation in this case.
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@rtype: New quaternion object.
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@return: It depends wheter a parameter was passed:
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- (list/angle): Quaternion object initialized with the given values;
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- (): An identity 4 dimensional quaternion.
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"""
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class Matrix:
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"""
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The Matrix Object
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=================
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@note: Math can be performed on Matrix classes
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- mat + mat
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- mat - mat
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- mat * float/int
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- mat * vec
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- mat * mat
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@note: Comparison operators can be done:
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- ==, != test numeric values within epsilon
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@note: You can access a quaternion object like a 2d sequence
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- x = matrix[0][1]
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- vector = matrix[2]
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@attention: Quaternion data can be wrapped or non-wrapped. When a object is wrapped it
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means that the object will give you direct access to the data inside of blender. Modification
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of this object will directly change the data inside of blender. To copy a wrapped object
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you need to use the object's constructor. If you copy and object by assignment you will not get
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a second copy but a second reference to the same data. Only certain functions will return
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wrapped data. This will be indicated in the method description.
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"""
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def __init__(list1 = None, list2 = None, list3 = None, list4 = None):
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"""
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Create a new matrix object from initialized values.
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Example::
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matrix = Matrix([1,1,1],[0,1,0],[1,0,0])
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matrix = Matrix(mat)
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matrix = Matrix(seq1, seq2, vector)
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@type list1: PyList of int/float
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@param list1: A 2d,3d or 4d list.
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@type list2: PyList of int/float
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@param list2: A 2d,3d or 4d list.
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@type list3: PyList of int/float
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@param list3: A 2d,3d or 4d list.
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@type list4: PyList of int/float
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@param list4: A 2d,3d or 4d list.
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@rtype: New matrix object.
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@return: It depends wheter a parameter was passed:
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- (list1, etc.): Matrix object initialized with the given values;
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- (): An empty 3 dimensional matrix.
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"""
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