Python geometry.Polygon类代码示例

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本文整理汇总了Python中sympy.geometry.Polygon类的典型用法代码示例。如果您正苦于以下问题：Python Polygon类的具体用法？Python Polygon怎么用？Python Polygon使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。

在下文中一共展示了Polygon类的16个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于我们的系统推荐出更棒的Python代码示例。

示例1: test_parameter_value

def test_parameter_value():
    t = Symbol('t')
    sq = Polygon((0, 0), (0, 1), (1, 1), (1, 0))
    assert sq.parameter_value((0.5, 1), t) == {t: S(3)/8}
    q = Polygon((0, 0), (2, 1), (2, 4), (4, 0))
    assert q.parameter_value((4, 0), t) == {t: -6 + 3*sqrt(5)}  # ~= 0.708
    raises(ValueError, lambda: sq.parameter_value((5, 6), t))

开发者ID:bjodah，项目名称:sympy，代码行数:7，代码来源:test_polygon.py

示例2: test_encloses

def test_encloses():
    # square with a dimpled left side
    s = Polygon(Point(0, 0), Point(1, 0), Point(1, 1), Point(0, 1), Point(S.Half, S.Half))
    # the following will be True if the polygon isn't treated as closing on itself
    assert s.encloses(Point(0, S.Half)) is False
    assert s.encloses(Point(S.Half, S.Half)) is False  # it's a vertex
    assert s.encloses(Point(Rational(3, 4), S.Half)) is True

开发者ID:flacjacket，项目名称:sympy，代码行数:7，代码来源:test_geometry.py

示例3: test_util_centroid

def test_util_centroid():
    p = Polygon((0, 0), (10, 0), (10, 10))
    q = p.translate(0, 20)
    assert centroid(p, q) == Point(20, 40) / 3
    p = Segment((0, 0), (2, 0))
    q = Segment((0, 0), (2, 2))
    assert centroid(p, q) == Point(1, 2 * sqrt(2) / (2 + 2 * sqrt(2)))
    assert centroid(Point(0, 0), Point(2, 0)) == Point(2, 0) / 2
    assert centroid(Point(0, 0), Point(0, 0), Point(2, 0)) == Point(2, 0) / 3

开发者ID:flacjacket，项目名称:sympy，代码行数:9，代码来源:test_geometry.py

示例4: test_issue_12966

def test_issue_12966():
    poly = Polygon(Point(0, 0), Point(0, 10), Point(5, 10), Point(5, 5),
        Point(10, 5), Point(10, 0))
    t = Symbol('t')
    pt = poly.arbitrary_point(t)
    DELTA = 5/poly.perimeter
    assert [pt.subs(t, DELTA*i) for i in range(int(1/DELTA))] == [
        Point(0, 0), Point(0, 5), Point(0, 10), Point(5, 10),
        Point(5, 5), Point(10, 5), Point(10, 0), Point(5, 0)]

开发者ID:bjodah，项目名称:sympy，代码行数:9，代码来源:test_polygon.py

示例5: test_intersection

def test_intersection():
    poly1 = Triangle(Point(0, 0), Point(1, 0), Point(0, 1))
    poly2 = Polygon(Point(0, 1), Point(-5, 0),
                    Point(0, -4), Point(0, S(1)/5),
                    Point(S(1)/2, -0.1), Point(1,0), Point(0, 1))

    assert poly1.intersection(poly2) == [Point2D(S(1)/3, 0),
        Segment(Point(0, S(1)/5), Point(0, 0)),
        Segment(Point(1, 0), Point(0, 1))]
    assert poly2.intersection(poly1) == [Point(S(1)/3, 0),
        Segment(Point(0, 0), Point(0, S(1)/5)),
        Segment(Point(1, 0), Point(0, 1))]
    assert poly1.intersection(Point(0, 0)) == [Point(0, 0)]
    assert poly1.intersection(Point(-12,  -43)) == []
    assert poly2.intersection(Line((-12, 0), (12, 0))) == [Point(-5, 0),
        Point(0, 0),Point(S(1)/3, 0), Point(1, 0)]
    assert poly2.intersection(Line((-12, 12), (12, 12))) == []
    assert poly2.intersection(Ray((-3,4), (1,0))) == [Segment(Point(1, 0),
        Point(0, 1))]
    assert poly2.intersection(Circle((0, -1), 1)) == [Point(0, -2),
        Point(0, 0)]
    assert poly1.intersection(poly1) == [Segment(Point(0, 0), Point(1, 0)),
        Segment(Point(0, 1), Point(0, 0)), Segment(Point(1, 0), Point(0, 1))]
    assert poly2.intersection(poly2) == [Segment(Point(-5, 0), Point(0, -4)),
        Segment(Point(0, -4), Point(0, S(1)/5)),
        Segment(Point(0, S(1)/5), Point(S(1)/2, -S(1)/10)),
        Segment(Point(0, 1), Point(-5, 0)),
        Segment(Point(S(1)/2, -S(1)/10), Point(1, 0)),
        Segment(Point(1, 0), Point(0, 1))]
    assert poly2.intersection(Triangle(Point(0, 1), Point(1, 0), Point(-1, 1))) \
        == [Point(-S(5)/7, S(6)/7), Segment(Point2D(0, 1), Point(1, 0))]
    assert poly1.intersection(RegularPolygon((-12, -15), 3, 3)) == []

开发者ID:bjodah，项目名称:sympy，代码行数:32，代码来源:test_polygon.py

示例6: Geofence

class Geofence(object):	

	#Takes in a file of coordinates y,x
	def __init__(self, filepath):	
		log.info("Creating geofence...")
		self.polygon = None
		points = []
		with open(filepath) as file:
			rows = csv.reader(file, delimiter=',')
			for row in rows:
				if len(row) != 2:
					log.info("Invalid point specificed: " + row)
					continue
				p = Point(float(row[0]), float(row[1]), evaluate=False)
				points.append(p)
		if len(points) == 2:
			p1 = Point(points[0].x, points[0].y, evaluate=False)
			p2 = Point(points[1].x, points[0].y, evaluate=False)
			p3 = Point(points[1].x, points[1].y, evaluate=False)
			p4 = Point(points[0].x, points[1].y, evaluate=False)
			self.polygon = Polygon(p1, p2, p3, p4)
			log.info(self.polygon)
		elif len(points) > 2:
			self.polygon = Polygon(*points)
		log.debug(self.polygon)
		log.info("Geofence established!")

	#Return true if x,y points are inside geofence
	def contains(self, x, y):
		rtn = self.polygon.encloses_point(Point(x,y, evaluate=False))
		clear_cache()
		return rtn

开发者ID:UnownFinder，项目名称:PokeAlarm，代码行数:32，代码来源:geofence.py

示例7: test_second_moment_of_area

def test_second_moment_of_area():
    x, y = symbols('x, y')
    # triangle
    p1, p2, p3 = [(0, 0), (4, 0), (0, 2)]
    p = (0, 0)
    # equation of hypotenuse
    eq_y = (1-x/4)*2
    I_yy = integrate((x**2) * (integrate(1, (y, 0, eq_y))), (x, 0, 4))
    I_xx = integrate(1 * (integrate(y**2, (y, 0, eq_y))), (x, 0, 4))
    I_xy = integrate(x * (integrate(y, (y, 0, eq_y))), (x, 0, 4))

    triangle = Polygon(p1, p2, p3)

    assert (I_xx - triangle.second_moment_of_area(p)[0]) == 0
    assert (I_yy - triangle.second_moment_of_area(p)[1]) == 0
    assert (I_xy - triangle.second_moment_of_area(p)[2]) == 0

    # rectangle
    p1, p2, p3, p4=[(0, 0), (4, 0), (4, 2), (0, 2)]
    I_yy = integrate((x**2) * integrate(1, (y, 0, 2)), (x, 0, 4))
    I_xx = integrate(1 * integrate(y**2, (y, 0, 2)), (x, 0, 4))
    I_xy = integrate(x * integrate(y, (y, 0, 2)), (x, 0, 4))

    rectangle = Polygon(p1, p2, p3, p4)

    assert (I_xx - rectangle.second_moment_of_area(p)[0]) == 0
    assert (I_yy - rectangle.second_moment_of_area(p)[1]) == 0
    assert (I_xy - rectangle.second_moment_of_area(p)[2]) == 0

开发者ID:bjodah，项目名称:sympy，代码行数:28，代码来源:test_polygon.py

示例8: init

	def __init__(self, filepath):	
		log.info("Creating geofence...")
		self.polygon = None
		points = []
		with open(filepath) as file:
			rows = csv.reader(file, delimiter=',')
			for row in rows:
				if len(row) != 2:
					log.info("Invalid point specificed: " + row)
					continue
				p = Point(float(row[0]), float(row[1]), evaluate=False)
				points.append(p)
		if len(points) == 2:
			p1 = Point(points[0].x, points[0].y, evaluate=False)
			p2 = Point(points[1].x, points[0].y, evaluate=False)
			p3 = Point(points[1].x, points[1].y, evaluate=False)
			p4 = Point(points[0].x, points[1].y, evaluate=False)
			self.polygon = Polygon(p1, p2, p3, p4)
			log.info(self.polygon)
		elif len(points) > 2:
			self.polygon = Polygon(*points)
		log.debug(self.polygon)
		log.info("Geofence established!")

开发者ID:UnownFinder，项目名称:PokeAlarm，代码行数:23，代码来源:geofence.py

示例9: test_polygon

def test_polygon():
    t = Triangle(Point(0, 0), Point(2, 0), Point(3, 3))
    assert Polygon(Point(0, 0), Point(1, 0), Point(2, 0), Point(3, 3)) == t
    assert Polygon(Point(1, 0), Point(2, 0), Point(3, 3), Point(0, 0)) == t
    assert Polygon(Point(2, 0), Point(3, 3), Point(0, 0), Point(1, 0)) == t

    p1 = Polygon(Point(0, 0), Point(3, -1), Point(6, 0), Point(4, 5), Point(2, 3), Point(0, 3))
    p2 = Polygon(Point(6, 0), Point(3, -1), Point(0, 0), Point(0, 3), Point(2, 3), Point(4, 5))
    p3 = Polygon(Point(0, 0), Point(3, 0), Point(5, 2), Point(4, 4))
    p4 = Polygon(Point(0, 0), Point(4, 4), Point(5, 2), Point(3, 0))
    p5 = Polygon(Point(0, 0), Point(4, 4), Point(0, 4))

    #
    # General polygon
    #
    assert p1 == p2
    assert len(p1.args) == 6
    assert len(p1.sides) == 6
    assert p1.perimeter == 5 + 2 * sqrt(10) + sqrt(29) + sqrt(8)
    assert p1.area == 22
    assert not p1.is_convex()
    assert p3.is_convex()
    assert p4.is_convex()  # ensure convex for both CW and CCW point specification
    dict5 = p5.angles
    assert dict5[Point(0, 0)] == pi / 4
    assert dict5[Point(0, 4)] == pi / 2
    assert p5.encloses_point(Point(x, y)) == None
    assert p5.encloses_point(Point(1, 3))
    assert p5.encloses_point(Point(0, 0)) == False
    assert p5.encloses_point(Point(4, 0)) == False
    p5.plot_interval("x") == [x, 0, 1]
    assert p5.distance(Polygon(Point(10, 10), Point(14, 14), Point(10, 14))) == 6 * sqrt(2)
    assert p5.distance(Polygon(Point(1, 8), Point(5, 8), Point(8, 12), Point(1, 12))) == 4
    raises(
        UserWarning,
        lambda: Polygon(Point(0, 0), Point(1, 0), Point(1, 1)).distance(Polygon(Point(0, 0), Point(0, 1), Point(1, 1))),
    )
    assert hash(p5) == hash(Polygon(Point(0, 0), Point(4, 4), Point(0, 4)))
    assert p5 == Polygon(Point(4, 4), Point(0, 4), Point(0, 0))
    assert Polygon(Point(4, 4), Point(0, 4), Point(0, 0)) in p5
    assert p5 != Point(0, 4)
    assert Point(0, 1) in p5
    assert p5.arbitrary_point("t").subs(Symbol("t", real=True), 0) == Point(0, 0)
    raises(ValueError, lambda: Polygon(Point(x, 0), Point(0, y), Point(x, y)).arbitrary_point("x"))

    #
    # Regular polygon
    #
    p1 = RegularPolygon(Point(0, 0), 10, 5)
    p2 = RegularPolygon(Point(0, 0), 5, 5)
    raises(GeometryError, lambda: RegularPolygon(Point(0, 0), Point(0, 1), Point(1, 1)))
    raises(GeometryError, lambda: RegularPolygon(Point(0, 0), 1, 2))
    raises(ValueError, lambda: RegularPolygon(Point(0, 0), 1, 2.5))

    assert p1 != p2
    assert p1.interior_angle == 3 * pi / 5
    assert p1.exterior_angle == 2 * pi / 5
    assert p2.apothem == 5 * cos(pi / 5)
    assert p2.circumcenter == p1.circumcenter == Point(0, 0)
    assert p1.circumradius == p1.radius == 10
    assert p2.circumcircle == Circle(Point(0, 0), 5)
    assert p2.incircle == Circle(Point(0, 0), p2.apothem)
    assert p2.inradius == p2.apothem == (5 * (1 + sqrt(5)) / 4)
    p2.spin(pi / 10)
    dict1 = p2.angles
    assert dict1[Point(0, 5)] == 3 * pi / 5
    assert p1.is_convex()
    assert p1.rotation == 0
    assert p1.encloses_point(Point(0, 0))
    assert p1.encloses_point(Point(11, 0)) == False
    assert p2.encloses_point(Point(0, 4.9))
    p1.spin(pi / 3)
    assert p1.rotation == pi / 3
    assert p1.vertices[0] == Point(5, 5 * sqrt(3))
    for var in p1.args:
        if isinstance(var, Point):
            assert var == Point(0, 0)
        else:
            assert var == 5 or var == 10 or var == pi / 3
    assert p1 != Point(0, 0)
    assert p1 != p5

    # while spin works in place (notice that rotation is 2pi/3 below)
    # rotate returns a new object
    p1_old = p1
    assert p1.rotate(pi / 3) == RegularPolygon(Point(0, 0), 10, 5, 2 * pi / 3)
    assert p1 == p1_old

    assert p1.area == (-250 * sqrt(5) + 1250) / (4 * tan(pi / 5))
    assert p1.length == 20 * sqrt(-sqrt(5) / 8 + S(5) / 8)
    assert p1.scale(2, 2) == RegularPolygon(p1.center, p1.radius * 2, p1._n, p1.rotation)
    assert RegularPolygon((0, 0), 1, 4).scale(2, 3) == Polygon(Point(2, 0), Point(0, 3), Point(-2, 0), Point(0, -3))

    assert ` p1 ` == str(p1)

    #
    # Angles
    #
    angles = p4.angles
    assert feq(angles[Point(0, 0)].evalf(), Float("0.7853981633974483"))
#.........这里部分代码省略.........

开发者ID:flacjacket，项目名称:sympy，代码行数:101，代码来源:test_geometry.py

示例10: test_polygon

def test_polygon():
    p1 = Polygon(
        Point(0, 0), Point(3,-1),
        Point(6, 0), Point(4, 5),
        Point(2, 3), Point(0, 3))
    p2 = Polygon(
        Point(6, 0), Point(3,-1),
        Point(0, 0), Point(0, 3),
        Point(2, 3), Point(4, 5))
    p3 = Polygon(
        Point(0, 0), Point(3, 0),
        Point(5, 2), Point(4, 4))
    p4 = Polygon(
        Point(0, 0), Point(4, 4),
        Point(5, 2), Point(3, 0))

    #
    # General polygon
    #
    assert p1 == p2
    assert len(p1) == Rational(6)
    assert len(p1.sides) == 6
    assert p1.perimeter == 5+2*sqrt(10)+sqrt(29)+sqrt(8)
    assert p1.area == 22
    assert not p1.is_convex()
    assert p3.is_convex()
    assert p4.is_convex()  # ensure convex for both CW and CCW point specification

    #
    # Regular polygon
    #
    p1 = RegularPolygon(Point(0, 0), 10, 5)
    p2 = RegularPolygon(Point(0, 0), 5, 5)

    assert p1 != p2
    assert p1.interior_angle == 3*pi/5
    assert p1.exterior_angle == 2*pi/5
    assert p2.apothem == 5*cos(pi/5)
    assert p2.circumcircle == Circle(Point(0, 0), 5)
    assert p2.incircle == Circle(Point(0, 0), p2.apothem)
    assert p1.is_convex()

    #
    # Angles
    #
    angles = p4.angles
    assert feq(angles[Point(0, 0)].evalf(), Real("0.7853981633974483"))
    assert feq(angles[Point(4, 4)].evalf(), Real("1.2490457723982544"))
    assert feq(angles[Point(5, 2)].evalf(), Real("1.8925468811915388"))
    assert feq(angles[Point(3, 0)].evalf(), Real("2.3561944901923449"))

    angles = p3.angles
    assert feq(angles[Point(0, 0)].evalf(), Real("0.7853981633974483"))
    assert feq(angles[Point(4, 4)].evalf(), Real("1.2490457723982544"))
    assert feq(angles[Point(5, 2)].evalf(), Real("1.8925468811915388"))
    assert feq(angles[Point(3, 0)].evalf(), Real("2.3561944901923449"))

    #
    # Triangle
    #
    p1 = Point(0, 0)
    p2 = Point(5, 0)
    p3 = Point(0, 5)
    t1 = Triangle(p1, p2, p3)
    t2 = Triangle(p1, p2, Point(Rational(5,2), sqrt(Rational(75,4))))
    t3 = Triangle(p1, Point(x1, 0), Point(0, x1))
    s1 = t1.sides
    s2 = t2.sides
    s3 = t3.sides

    # Basic stuff
    assert t1.area == Rational(25,2)
    assert t1.is_right()
    assert t2.is_right() == False
    assert t3.is_right()
    assert p1 in t1
    assert Point(5, 5) not in t2
    assert t1.is_convex()
    assert feq(t1.angles[p1].evalf(), pi.evalf()/2)

    assert t1.is_equilateral() == False
    assert t2.is_equilateral()
    assert t3.is_equilateral() == False
    assert are_similar(t1, t2) == False
    assert are_similar(t1, t3)
    assert are_similar(t2, t3) == False

    # Bisectors
    bisectors = t1.bisectors
    assert bisectors[p1] == Segment(p1, Point(Rational(5,2), Rational(5,2)))
    ic = (250 - 125*sqrt(2)) / 50
    assert t1.incenter == Point(ic, ic)

    # Inradius
    assert t1.inradius == 5 - 5*2**(S(1)/2)/2
    assert t2.inradius == 5*3**(S(1)/2)/6
    assert t3.inradius == (2*x1**2*Abs(x1) - 2**(S(1)/2)*x1**2*Abs(x1))/(2*x1**2)

    # Medians + Centroid
    m = t1.medians
#.........这里部分代码省略.........

开发者ID:pernici，项目名称:sympy，代码行数:101，代码来源:test_geometry.py

示例11: test_polygon

def test_polygon():
    t = Triangle(Point(0, 0), Point(2, 0), Point(3, 3))
    assert Polygon(Point(0, 0), Point(1, 0), Point(2, 0), Point(3, 3)) == t
    assert Polygon(Point(1, 0), Point(2, 0), Point(3, 3), Point(0, 0)) == t
    assert Polygon(Point(2, 0), Point(3, 3), Point(0, 0), Point(1, 0)) == t

    p1 = Polygon(
        Point(0, 0), Point(3,-1),
        Point(6, 0), Point(4, 5),
        Point(2, 3), Point(0, 3))
    p2 = Polygon(
        Point(6, 0), Point(3,-1),
        Point(0, 0), Point(0, 3),
        Point(2, 3), Point(4, 5))
    p3 = Polygon(
        Point(0, 0), Point(3, 0),
        Point(5, 2), Point(4, 4))
    p4 = Polygon(
        Point(0, 0), Point(4, 4),
        Point(5, 2), Point(3, 0))
    p5 = Polygon(
        Point(0, 0), Point(4, 4),
        Point(0, 4))

    #
    # General polygon
    #
    assert p1 == p2
    assert len(p1.args) == 6
    assert len(p1.sides) == 6
    assert p1.perimeter == 5+2*sqrt(10)+sqrt(29)+sqrt(8)
    assert p1.area == 22
    assert not p1.is_convex()
    assert p3.is_convex()
    assert p4.is_convex()  # ensure convex for both CW and CCW point specification
    dict5 = p5.angles
    assert dict5[Point(0, 0)] == pi / 4
    assert dict5[Point(0, 4)] == pi / 2
    assert p5.encloses_point(Point(x, y)) == None
    assert p5.encloses_point(Point(1, 3))
    assert p5.encloses_point(Point(0, 0)) == False
    assert p5.encloses_point(Point(4, 0)) == False
    p5.plot_interval('x') == [x, 0, 1]
    assert p5.distance(Polygon(Point(10, 10), Point(14, 14), Point(10, 14))) == 6 * sqrt(2)
    assert p5.distance(Polygon(Point(1, 8), Point(5, 8), Point(8, 12), Point(1, 12))) == 4
    raises(UserWarning,
           'Polygon(Point(0, 0), Point(1, 0), Point(1,1)).distance(Polygon(Point(0, 0), Point(0, 1), Point(1, 1)))')
    assert hash(p5) == hash(Polygon(Point(0, 0), Point(4, 4), Point(0, 4)))
    assert p5 == Polygon(Point(4, 4), Point(0, 4), Point(0, 0))
    assert Polygon(Point(4, 4), Point(0, 4), Point(0, 0)) in p5
    assert p5 != Point(0, 4)
    assert Point(0, 1) in p5
    assert p5.arbitrary_point('t').subs(Symbol('t', real=True), 0) == Point(0, 0)
    raises(ValueError, "Polygon(Point(x, 0), Point(0, y), Point(x, y)).arbitrary_point('x')")

    #
    # Regular polygon
    #
    p1 = RegularPolygon(Point(0, 0), 10, 5)
    p2 = RegularPolygon(Point(0, 0), 5, 5)
    raises(GeometryError, 'RegularPolygon(Point(0, 0), Point(0, 1), Point(1, 1))')
    raises(GeometryError, 'RegularPolygon(Point(0, 0), 1, 2)')
    raises(ValueError, 'RegularPolygon(Point(0, 0), 1, 2.5)')

    assert p1 != p2
    assert p1.interior_angle == 3*pi/5
    assert p1.exterior_angle == 2*pi/5
    assert p2.apothem == 5*cos(pi/5)
    assert p2.circumcenter == p1.circumcenter == Point(0, 0)
    assert p1.circumradius == p1.radius == 10
    assert p2.circumcircle == Circle(Point(0, 0), 5)
    assert p2.incircle == Circle(Point(0, 0), p2.apothem)
    assert p2.inradius == p2.apothem == (5 * (1 + sqrt(5)) / 4)
    p2.spin(pi / 10)
    dict1 = p2.angles
    assert dict1[Point(0, 5)] == 3 * pi / 5
    assert p1.is_convex()
    assert p1.rotation == 0
    assert p1.encloses_point(Point(0, 0))
    assert p1.encloses_point(Point(11, 0)) == False
    assert p2.encloses_point(Point(0, 4.9))
    p1.spin(pi/3)
    assert p1.rotation == pi/3
    assert p1.vertices[0] == Point(5, 5*sqrt(3))
    for var in p1.args:
        if isinstance(var, Point):
            assert var == Point(0, 0)
        else:
            assert var == 5 or var == 10 or var == pi / 3
    assert p1 != Point(0, 0)
    assert p1 != p5

    # while spin works in place (notice that rotation is 2pi/3 below)
    # rotate returns a new object
    p1_old = p1
    assert p1.rotate(pi/3) == RegularPolygon(Point(0, 0), 10, 5, 2*pi/3)
    assert p1 == p1_old

    assert `p1` == str(p1)

#.........这里部分代码省略.........

开发者ID:Misbah6317，项目名称:sympy，代码行数:101，代码来源:test_geometry.py

示例12: test_polygon

def test_polygon():
    t = Triangle(Point(0, 0), Point(2, 0), Point(3, 3))
    assert Polygon(Point(0, 0), Point(1, 0), Point(2, 0), Point(3, 3)) == t
    assert Polygon(Point(1, 0), Point(2, 0), Point(3, 3), Point(0, 0)) == t
    assert Polygon(Point(2, 0), Point(3, 3), Point(0, 0), Point(1, 0)) == t

    p1 = Polygon(Point(0, 0), Point(3, -1), Point(6, 0), Point(4, 5), Point(2, 3), Point(0, 3))
    p2 = Polygon(Point(6, 0), Point(3, -1), Point(0, 0), Point(0, 3), Point(2, 3), Point(4, 5))
    p3 = Polygon(Point(0, 0), Point(3, 0), Point(5, 2), Point(4, 4))
    p4 = Polygon(Point(0, 0), Point(4, 4), Point(5, 2), Point(3, 0))

    #
    # General polygon
    #
    assert p1 == p2
    assert len(p1) == 6
    assert len(p1.sides) == 6
    assert p1.perimeter == 5 + 2 * sqrt(10) + sqrt(29) + sqrt(8)
    assert p1.area == 22
    assert not p1.is_convex()
    assert p3.is_convex()
    assert p4.is_convex()  # ensure convex for both CW and CCW point specification

    #
    # Regular polygon
    #
    p1 = RegularPolygon(Point(0, 0), 10, 5)
    p2 = RegularPolygon(Point(0, 0), 5, 5)

    assert p1 != p2
    assert p1.interior_angle == 3 * pi / 5
    assert p1.exterior_angle == 2 * pi / 5
    assert p2.apothem == 5 * cos(pi / 5)
    assert p2.circumcircle == Circle(Point(0, 0), 5)
    assert p2.incircle == Circle(Point(0, 0), p2.apothem)
    assert p1.is_convex()

    #
    # Angles
    #
    angles = p4.angles
    assert feq(angles[Point(0, 0)].evalf(), Real("0.7853981633974483"))
    assert feq(angles[Point(4, 4)].evalf(), Real("1.2490457723982544"))
    assert feq(angles[Point(5, 2)].evalf(), Real("1.8925468811915388"))
    assert feq(angles[Point(3, 0)].evalf(), Real("2.3561944901923449"))

    angles = p3.angles
    assert feq(angles[Point(0, 0)].evalf(), Real("0.7853981633974483"))
    assert feq(angles[Point(4, 4)].evalf(), Real("1.2490457723982544"))
    assert feq(angles[Point(5, 2)].evalf(), Real("1.8925468811915388"))
    assert feq(angles[Point(3, 0)].evalf(), Real("2.3561944901923449"))

    #
    # Triangle
    #
    p1 = Point(0, 0)
    p2 = Point(5, 0)
    p3 = Point(0, 5)
    t1 = Triangle(p1, p2, p3)
    t2 = Triangle(p1, p2, Point(Rational(5, 2), sqrt(Rational(75, 4))))
    t3 = Triangle(p1, Point(x1, 0), Point(0, x1))
    s1 = t1.sides
    s2 = t2.sides
    s3 = t3.sides

    # Basic stuff
    assert Triangle(p1, p1, p1) == p1
    assert Triangle(p2, p2 * 2, p2 * 3) == Segment(p2, p2 * 3)
    assert t1.area == Rational(25, 2)
    assert t1.is_right()
    assert t2.is_right() == False
    assert t3.is_right()
    assert p1 in t1
    assert Point(5, 5) not in t2
    assert t1.is_convex()
    assert feq(t1.angles[p1].evalf(), pi.evalf() / 2)

    assert t1.is_equilateral() == False
    assert t2.is_equilateral()
    assert t3.is_equilateral() == False
    assert are_similar(t1, t2) == False
    assert are_similar(t1, t3)
    assert are_similar(t2, t3) == False

    # Bisectors
    bisectors = t1.bisectors()
    assert bisectors[p1] == Segment(p1, Point(Rational(5, 2), Rational(5, 2)))
    ic = (250 - 125 * sqrt(2)) / 50
    assert t1.incenter == Point(ic, ic)

    # Inradius
    assert t1.inradius == 5 - 5 * sqrt(2) / 2
    assert t2.inradius == 5 * sqrt(3) / 6
    assert t3.inradius == x1 ** 2 / ((2 + sqrt(2)) * Abs(x1))

    # Medians + Centroid
    m = t1.medians
    assert t1.centroid == Point(Rational(5, 3), Rational(5, 3))
    assert m[p1] == Segment(p1, Point(Rational(5, 2), Rational(5, 2)))
    assert t3.medians[p1] == Segment(p1, Point(x1 / 2, x1 / 2))
#.........这里部分代码省略.........

开发者ID:addisonc，项目名称:sympy，代码行数:101，代码来源:test_geometry.py

示例13: test_polygon

def test_polygon():
    x = Symbol('x', real=True)
    y = Symbol('y', real=True)
    x1 = Symbol('x1', real=True)
    half = Rational(1, 2)
    a, b, c = Point(0, 0), Point(2, 0), Point(3, 3)
    t = Triangle(a, b, c)
    assert Polygon(a, Point(1, 0), b, c) == t
    assert Polygon(Point(1, 0), b, c, a) == t
    assert Polygon(b, c, a, Point(1, 0)) == t
    # 2 "remove folded" tests
    assert Polygon(a, Point(3, 0), b, c) == t
    assert Polygon(a, b, Point(3, -1), b, c) == t
    raises(GeometryError, lambda: Polygon((0, 0), (1, 0), (0, 1), (1, 1)))
    # remove multiple collinear points
    assert Polygon(Point(-4, 15), Point(-11, 15), Point(-15, 15),
        Point(-15, 33/5), Point(-15, -87/10), Point(-15, -15),
        Point(-42/5, -15), Point(-2, -15), Point(7, -15), Point(15, -15),
        Point(15, -3), Point(15, 10), Point(15, 15)) == \
        Polygon(Point(-15,-15), Point(15,-15), Point(15,15), Point(-15,15))


    p1 = Polygon(
        Point(0, 0), Point(3, -1),
        Point(6, 0), Point(4, 5),
        Point(2, 3), Point(0, 3))
    p2 = Polygon(
        Point(6, 0), Point(3, -1),
        Point(0, 0), Point(0, 3),
        Point(2, 3), Point(4, 5))
    p3 = Polygon(
        Point(0, 0), Point(3, 0),
        Point(5, 2), Point(4, 4))
    p4 = Polygon(
        Point(0, 0), Point(4, 4),
        Point(5, 2), Point(3, 0))
    p5 = Polygon(
        Point(0, 0), Point(4, 4),
        Point(0, 4))
    p6 = Polygon(
        Point(-11, 1), Point(-9, 6.6),
        Point(-4, -3), Point(-8.4, -8.7))
    r = Ray(Point(-9,6.6), Point(-9,5.5))
    #
    # General polygon
    #
    assert p1 == p2
    assert len(p1.args) == 6
    assert len(p1.sides) == 6
    assert p1.perimeter == 5 + 2*sqrt(10) + sqrt(29) + sqrt(8)
    assert p1.area == 22
    assert not p1.is_convex()
    # ensure convex for both CW and CCW point specification
    assert p3.is_convex()
    assert p4.is_convex()
    dict5 = p5.angles
    assert dict5[Point(0, 0)] == pi / 4
    assert dict5[Point(0, 4)] == pi / 2
    assert p5.encloses_point(Point(x, y)) is None
    assert p5.encloses_point(Point(1, 3))
    assert p5.encloses_point(Point(0, 0)) is False
    assert p5.encloses_point(Point(4, 0)) is False
    assert p1.encloses(Circle(Point(2.5,2.5),5)) is False
    assert p1.encloses(Ellipse(Point(2.5,2),5,6)) is False
    p5.plot_interval('x') == [x, 0, 1]
    assert p5.distance(
        Polygon(Point(10, 10), Point(14, 14), Point(10, 14))) == 6 * sqrt(2)
    assert p5.distance(
        Polygon(Point(1, 8), Point(5, 8), Point(8, 12), Point(1, 12))) == 4
    warnings.filterwarnings(
        "error", message="Polygons may intersect producing erroneous output")
    raises(UserWarning,
           lambda: Polygon(Point(0, 0), Point(1, 0),
           Point(1, 1)).distance(
           Polygon(Point(0, 0), Point(0, 1), Point(1, 1))))
    warnings.filterwarnings(
        "ignore", message="Polygons may intersect producing erroneous output")
    assert hash(p5) == hash(Polygon(Point(0, 0), Point(4, 4), Point(0, 4)))
    assert p5 == Polygon(Point(4, 4), Point(0, 4), Point(0, 0))
    assert Polygon(Point(4, 4), Point(0, 4), Point(0, 0)) in p5
    assert p5 != Point(0, 4)
    assert Point(0, 1) in p5
    assert p5.arbitrary_point('t').subs(Symbol('t', real=True), 0) == \
        Point(0, 0)
    raises(ValueError, lambda: Polygon(
        Point(x, 0), Point(0, y), Point(x, y)).arbitrary_point('x'))
    assert p6.intersection(r) == [Point(-9, 33/5), Point(-9, -84/13)]
    #
    # Regular polygon
    #
    p1 = RegularPolygon(Point(0, 0), 10, 5)
    p2 = RegularPolygon(Point(0, 0), 5, 5)
    raises(GeometryError, lambda: RegularPolygon(Point(0, 0), Point(0,
           1), Point(1, 1)))
    raises(GeometryError, lambda: RegularPolygon(Point(0, 0), 1, 2))
    raises(ValueError, lambda: RegularPolygon(Point(0, 0), 1, 2.5))

    assert p1 != p2
    assert p1.interior_angle == 3*pi/5
    assert p1.exterior_angle == 2*pi/5
#.........这里部分代码省略.........

开发者ID:alexako，项目名称:sympy，代码行数:101，代码来源:test_polygon.py

示例14: download_idaho_tiles_by_bbox

    def download_idaho_tiles_by_bbox(self, catId, bbox, resolution, outputfolder):
        '''Retrieve and view just the IDAHO chips in a particular bounding box
           for a catID.

        Args:
            catid (str): The source catalog ID from the platform catalog.
            bbox (list): List of coords: minx(W), miny(S), maxx(E), maxy(N).
            resolution (str): The desired floating point resolution of the tiles.
            outputfolder (str): The desired output location of the IDAHO tiles.
        '''
        
        minx, miny, maxx, maxy = bbox
        
        #validate bbox values
        if (minx > maxx):
            print ('The west value is not less than the east value.')
            exit
        if (miny > maxy):
            print ('The south value is not less than the north value.')
            exit
        
        #create bbox polygon
        bp1 = Point(minx, miny)
        bp2 = Point(minx, maxy)
        bp3 = Point(maxx, maxy)
        bp4 = Point(maxx, miny)
        bbox_polygon = Polygon(bp1, bp2, bp3, bp4)
        
        #get IDAHO image results: parts
        idaho_image_results = self.get_images_by_catid(catId)
        description = self.describe_images(idaho_image_results)
        
        tile_count = 0
        for catid, images in description.items():
            for partnum, part in images['parts'].items():

                num_images = len(list(part.keys()))
                partname = None
                if num_images == 1:
                    # there is only one image, use the PAN
                    partname = [p for p in list(part.keys()) if p.upper() == 'PAN'][0]
                elif num_images == 2:
                    # there are two images in this part, use the multi (or pansharpen)
                    partname = [p for p in list(part.keys()) if p is not 'PAN'][0]

                if not partname:
                    print("Cannot find part for idaho image.")
                    continue

                part_boundstr_wkt = part[partname]['boundstr']
                part_polygon = geometry.from_wkt(part_boundstr_wkt) 
                bucketname = part[partname]['bucket']
                image_id = part[partname]['id']
                W, S, E, N = part_polygon.bounds
                pp1, pp2, pp3, pp4 = Point(W, S), Point(W, N), Point(E, N), Point(E, S)
                part_bbox_polygon = Polygon(pp1, pp2, pp3, pp4)
                if (bbox_polygon.intersection(part_bbox_polygon)):
                    center_lat = (S + old_div((N-S),2))
                    center_lon = (W + old_div((E-W),2))
                    print(center_lat, center_lon)
                    self.get_idaho_chip(bucket_name=bucketname,
                                        idaho_id=image_id,
                                        center_lat=str(center_lat),
                                        center_lon=str(center_lon),
                                        resolution=resolution,
                                        output_folder=outputfolder)
                    tile_count+=1
                    
        print ('There were ' + str(tile_count) + ' IDAHO images downloaded that ' +
              'intersect with the provided bounding box.')

开发者ID:jeffnaus，项目名称:gbdxtools，代码行数:70，代码来源:idaho.py

示例15: view_idaho_tiles_by_bbox

    def view_idaho_tiles_by_bbox(self, catId, bbox, output_filename):
        '''Retrieve and view just the IDAHO chips in a particular bounding box
           for a catID.

        Args:
            catid (str): The source catalog ID from the platform catalog.
            bbox (list): List of coords: minx(W), miny(S), maxx(E), maxy(N).
            output_filename (str): a Leaflet Viewer file showing the IDAHO
               images as tiles.
        '''
        
        minx, miny, maxx, maxy = bbox
        
        #validate bbox values
        if (minx > maxx):
            print ('The west value is not less than the east value.')
            exit
        if (miny > maxy):
            print ('The south value is not less than the north value.')
            exit
        
        #create bbox polygon
        bp1 = Point(minx, miny)
        bp2 = Point(minx, maxy)
        bp3 = Point(maxx, maxy)
        bp4 = Point(maxx, miny)
        bbox_polygon = Polygon(bp1, bp2, bp3, bp4)
        
        #get IDAHO image results: parts
        idaho_image_results = self.get_images_by_catid(catId)
        description = self.describe_images(idaho_image_results)
        
        tile_count = 0
        for catid, images in description.items():
            functionstring = ''
            for partnum, part in images['parts'].items():

                num_images = len(list(part.keys()))
                partname = None
                if num_images == 1:
                    # there is only one image, use the PAN
                    partname = [p for p in list(part.keys()) if p.upper() == 'PAN'][0]
                    pan_image_id = ''
                elif num_images == 2:
                    # there are two images in this part, use the multi (or pansharpen)
                    partname = [p for p in list(part.keys()) if p is not 'PAN'][0]
                    pan_image_id = part['PAN']['id']

                if not partname:
                    print("Cannot find part for idaho image.")
                    continue

                bandstr = {
                    'RGBN': '0,1,2',
                    'WORLDVIEW_8_BAND': '4,2,1',
                    'PAN': '0'
                }.get(partname, '0,1,2')

                part_boundstr_wkt = part[partname]['boundstr']
                part_polygon = geometry.from_wkt(part_boundstr_wkt) 
                bucketname = part[partname]['bucket']
                image_id = part[partname]['id']
                W, S, E, N = part_polygon.bounds
                pp1, pp2, pp3, pp4 = Point(W, S), Point(W, N), Point(E, N), Point(E, S)
                part_bbox_polygon = Polygon(pp1, pp2, pp3, pp4)
                if (bbox_polygon.intersection(part_bbox_polygon)):
                    functionstring += ("addLayerToMap('%s','%s',%s,%s,%s,%s,'%s');\n" % 
                                      (bucketname, image_id, W,S,E,N, pan_image_id))
                    tile_count += 1
                    
        print ('There were ' + str(tile_count) + ' IDAHO images found to ' +
              'intersect with the provided bounding box.')
        
        __location__ = os.path.realpath(
            os.path.join(os.getcwd(), os.path.dirname(os.path.realpath('__file__'))))
        with open(os.path.join(__location__, 'leafletmap_template.html'), 'r') as htmlfile:
            data=htmlfile.read().decode("utf8")

        data = data.replace('FUNCTIONSTRING',functionstring)
        data = data.replace('CENTERLAT',str(S + old_div((N-S),2)))
        data = data.replace('CENTERLON',str(W + old_div((E-W),2)))
        data = data.replace('BANDS',bandstr)
        data = data.replace('TOKEN',self.gbdx_connection.access_token)

        with codecs.open(output_filename,'w','utf8') as outputfile:
            print("Saving %s" % output_filename)
            outputfile.write(data)

开发者ID:jeffnaus，项目名称:gbdxtools，代码行数:87，代码来源:idaho.py

示例16: test_polygon

def test_polygon():
    t = Triangle(Point(0, 0), Point(2, 0), Point(3, 3))
    assert Polygon(Point(0, 0), Point(1, 0), Point(2, 0), Point(3, 3)) == t
    assert Polygon(Point(1, 0), Point(2, 0), Point(3, 3), Point(0, 0)) == t
    assert Polygon(Point(2, 0), Point(3, 3), Point(0, 0), Point(1, 0)) == t

    p1 = Polygon(
        Point(0, 0), Point(3,-1),
        Point(6, 0), Point(4, 5),
        Point(2, 3), Point(0, 3))
    p2 = Polygon(
        Point(6, 0), Point(3,-1),
        Point(0, 0), Point(0, 3),
        Point(2, 3), Point(4, 5))
    p3 = Polygon(
        Point(0, 0), Point(3, 0),
        Point(5, 2), Point(4, 4))
    p4 = Polygon(
        Point(0, 0), Point(4, 4),
        Point(5, 2), Point(3, 0))

    #
    # General polygon
    #
    assert p1 == p2
    assert len(p1) == 6
    assert len(p1.sides) == 6
    assert p1.perimeter == 5+2*sqrt(10)+sqrt(29)+sqrt(8)
    assert p1.area == 22
    assert not p1.is_convex()
    assert p3.is_convex()
    assert p4.is_convex()  # ensure convex for both CW and CCW point specification

    #
    # Regular polygon
    #
    p1 = RegularPolygon(Point(0, 0), 10, 5)
    p2 = RegularPolygon(Point(0, 0), 5, 5)

    assert p1 != p2
    assert p1.interior_angle == 3*pi/5
    assert p1.exterior_angle == 2*pi/5
    assert p2.apothem == 5*cos(pi/5)
    assert p2.circumcircle == Circle(Point(0, 0), 5)
    assert p2.incircle == Circle(Point(0, 0), p2.apothem)
    assert p1.is_convex()
    assert p1.rotation == 0
    p1.spin(pi/3)
    assert p1.rotation == pi/3
    assert p1[0] == Point(5, 5*sqrt(3))
    # while spin works in place (notice that rotation is 2pi/3 below)
    # rotate returns a new object
    p1_old = p1
    assert p1.rotate(pi/3) == RegularPolygon(Point(0, 0), 10, 5, 2*pi/3)
    assert p1 == p1_old

    #
    # Angles
    #
    angles = p4.angles
    assert feq(angles[Point(0, 0)].evalf(), Float("0.7853981633974483"))
    assert feq(angles[Point(4, 4)].evalf(), Float("1.2490457723982544"))
    assert feq(angles[Point(5, 2)].evalf(), Float("1.8925468811915388"))
    assert feq(angles[Point(3, 0)].evalf(), Float("2.3561944901923449"))

    angles = p3.angles
    assert feq(angles[Point(0, 0)].evalf(), Float("0.7853981633974483"))
    assert feq(angles[Point(4, 4)].evalf(), Float("1.2490457723982544"))
    assert feq(angles[Point(5, 2)].evalf(), Float("1.8925468811915388"))
    assert feq(angles[Point(3, 0)].evalf(), Float("2.3561944901923449"))

    #
    # Triangle
    #
    p1 = Point(0, 0)
    p2 = Point(5, 0)
    p3 = Point(0, 5)
    t1 = Triangle(p1, p2, p3)
    t2 = Triangle(p1, p2, Point(Rational(5,2), sqrt(Rational(75,4))))
    t3 = Triangle(p1, Point(x1, 0), Point(0, x1))
    s1 = t1.sides

    # Basic stuff
    assert Triangle(p1, p1, p1) == p1
    assert Triangle(p2, p2*2, p2*3) == Segment(p2, p2*3)
    assert t1.area == Rational(25,2)
    assert t1.is_right()
    assert t2.is_right() == False
    assert t3.is_right()
    assert p1 in t1
    assert t1.sides[0] in t1
    assert Segment((0, 0), (1, 0)) in t1
    assert Point(5, 5) not in t2
    assert t1.is_convex()
    assert feq(t1.angles[p1].evalf(), pi.evalf()/2)

    assert t1.is_equilateral() == False
    assert t2.is_equilateral()
    assert t3.is_equilateral() == False
    assert are_similar(t1, t2) == False
#.........这里部分代码省略.........

开发者ID:AlexandruFlorescu，项目名称:sympy，代码行数:101，代码来源:test_geometry.py

注：本文中的sympy.geometry.Polygon类示例由纯净天空整理自Github/MSDocs等源码及文档管理平台，相关代码片段筛选自各路编程大神贡献的开源项目，源码版权归原作者所有，传播和使用请参考对应项目的License；未经允许，请勿转载。

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Python geometry.Ray类代码示例发布时间：2022-05-27

Python geometry.Point类代码示例发布时间：2022-05-27

Python util.grid_equal函数代码示例

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Python geometry.Polygon类代码示例

示例1: test_parameter_value

示例2: test_encloses

示例3: test_util_centroid

示例4: test_issue_12966

示例5: test_intersection

示例6: Geofence

示例7: test_second_moment_of_area

示例8: init

示例9: test_polygon

示例10: test_polygon

示例11: test_polygon

示例12: test_polygon

示例13: test_polygon

示例14: download_idaho_tiles_by_bbox

示例15: view_idaho_tiles_by_bbox

示例16: test_polygon

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Python geometry.Polygon类代码示例

示例1: test_parameter_value

示例2: test_encloses

示例3: test_util_centroid

示例4: test_issue_12966

示例5: test_intersection

示例6: Geofence

示例7: test_second_moment_of_area

示例8: __init__

示例9: test_polygon

示例10: test_polygon

示例11: test_polygon

示例12: test_polygon

示例13: test_polygon

示例14: download_idaho_tiles_by_bbox

示例15: view_idaho_tiles_by_bbox

示例16: test_polygon

请发表评论

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Python util.grid_equal函数代码示例

Python util.get_worker_name函数代码示例

Python util.get_webmention_target函数代

Python util.get_uuid函数代码示例

Python util.get_type_by_name函数代码示例

Python util.grid_equal函数代码示例

Python util.get_worker_name函数代码示例

Python util.get_webmention_target函数代

Python util.get_uuid函数代码示例

Python util.get_type_by_name函数代码示例

Python util.get_stdout函数代码示例

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解决方案

139-2527-9053

示例8: init