Ellipse
constructor
g.Ellipse(c, rx, ry)
Return a new ellipse object with center at point c and parameters rx and ry.
Methods
bbox()
ellipse.bbox()
Return a rectangle that is the bounding box of the ellipse.
center()
ellipse.center()
Return a point that is the center of the ellipse.
clone()
ellipse.clone()
Return another ellipse which is a clone of the ellipse.
containsPoint()
ellipse.containsPoint(p)
Return true if the point p is inside the ellipse (inclusive). Return false otherwise.
equals()
ellipse.equals(otherEllipse)
Return true if the ellipse equals the other ellipse.
inflate()
ellipse.inflate(dx [, dy])
Return an ellipse inflated in axis x by 2 * dx and in axis y by 2 * dy. When method is called with a single parameter, the resulting ellipse is inflated by 2 * dx in both x and y axis.
intersectionWithLine()
ellipse.intersectionWithLine(line)
Return an array of the intersection points of the ellipse and the line. Return null if no intersection exists.
intersectionWithLineFromCenterToPoint()
ellipse.intersectionWithLineFromCenterToPoint(p, angle)
Return the point on the boundary of the ellipse that is the intersection of the ellipse with a line starting in the center of the ellipse ending in the point p. If angle is specified, the intersection will take into account the rotation of the ellipse by angle degrees around its center.
normalizedDistance()
ellipse.normalizedDistance(p)
Return a normalized distance from the ellipse center to point p.
Returns n < 1 for points inside the ellipse, n = 1 for points lying on the ellipse boundary and n > 1 for points outside the ellipse.
round()
ellipse.round([precision])
Round all coordinates of the ellipse to the given precision.
Default precision is 0.
Modifies this ellipse in-place, and returns it.
tangentTheta()
ellipse.tangentTheta(point)
Returns the angle between the x axis and the tangent from a point. It is valid for points lying on the ellipse boundary only.
toString()
ellipse.toString()
Returns the ellipse represented as a string.
new g.Ellipse({ x: 10, y: 10}, 20, 30).toString() = "10@10 20 30"
Static methods
fromRect()
g.Ellipse.fromRect(rect)
Return a new ellipse object from the given rect.