wirecell.util.geo.shapes.Rectangle2D Class Reference

Inheritance diagram for wirecell.util.geo.shapes.Rectangle2D:

Public Member Functions
def	__init__ (self, width, height, center=Point2D(0.0, 0.0))
def	ll (self)
def	relative (self, point2d)
def	inside (self, point2d)
def	toedge (self, point, direction)

Public Attributes
	width
	height
	center

Detailed Description

An 2D rectangle

Definition at line 125 of file shapes.py.

Constructor & Destructor Documentation

def wirecell.util.geo.shapes.Rectangle2D.__init__	(		self,
			width,
			height,
			center = Point2D(0.0, 0.0)
	)

Definition at line 129 of file shapes.py.

    def __init__(self, width, height, center = Point2D(0.0, 0.0)):
        self.width = width
        self.height = height
        self.center = center

Member Function Documentation

def wirecell.util.geo.shapes.Rectangle2D.inside	(		self,
			point2d
	)

Definition at line 142 of file shapes.py.

    def inside(self, point2d):
        r = self.relative(point2d)
        return abs(r.x) <= 0.5*self.width and abs(r.y) <= 0.5*self.height

def wirecell.util.geo.shapes.Rectangle2D.ll

(

self

)

Definition at line 135 of file shapes.py.

    def ll(self):
        return Point(self.center.x - 0.5*self.width,
                         self.center.y - 0.5*self.height);

def wirecell.util.geo.shapes.Rectangle2D.relative	(		self,
			point2d
	)

Definition at line 139 of file shapes.py.

    def relative(self, point2d):
        return point2d - self.center

def wirecell.util.geo.shapes.Rectangle2D.toedge	(		self,
			point,
			direction
	)

Return a vector that takes point along direction to the nearest edge.

Definition at line 146 of file shapes.py.

    def toedge(self, point, direction):
        '''
        Return a vector that takes point along direction to the nearest edge.
        '''
        p1 = self.relative(point)
        d1 = direction.unit
        
        #print "toedge: p1:%s d1:%s" % (p1, d1)

        xdir = d1.dot((1.0, 0.0))             # cos(theta_x)
        xsign = xdir/abs(xdir)
        ydir = d1.dot((0.0, 1.0))             # cos(theta_y) 
        ysign = ydir/abs(ydir)

        corn = Point(0.5*self.width, 0.5*self.height)

        dx = xsign*corn.x - p1.x
        dy = ysign*corn.y - p1.y

        tx = dx/d1.x
        ty = dy/d1.y


        if tx < ty:                           # closer to vertical side
            jump = tx
        else:
            jump = ty

        return d1 * jump

Member Data Documentation

wirecell.util.geo.shapes.Rectangle2D.center

Definition at line 132 of file shapes.py.

wirecell.util.geo.shapes.Rectangle2D.height

Definition at line 131 of file shapes.py.

wirecell.util.geo.shapes.Rectangle2D.width

Definition at line 130 of file shapes.py.

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The documentation for this class was generated from the following file:

• wire-cell-build/python/wirecell/util/geo/shapes.py

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