Class Circle
Extends
JXG.Circle.
This element is used to provide a constructor for a circle.
Defined in: Circle.js.
Constructor Attributes | Constructor Name and Description |
---|---|
Circle(midpoint,radius)
A circle consists of all points with a given distance from one point.
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- Fields borrowed from class JXG.Circle:
- circle, line, method, midpoint, point2, radius
- Fields borrowed from class JXG.GeometryElement:
- ancestors, board, childElements, dash, descendants, draft, fillColor, fillOpacity, fixed, hasLabel, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, isReal, layer, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, quadraticform, shadow, stdform, strokeColor, strokeOpacity, strokeWidth, symbolic, trace, traces, transformations, visible, visProp
- Methods borrowed from class JXG.Circle:
- cloneToBackground, getRadius, Radius, update, X, Y
- Methods borrowed from class JXG.GeometryElement:
- addChild, addLabelToElement, animate, clearTrace, hideElement, highlight, labelColor, noHighlight, remove, setArrow, setProperty, showElement
Class Detail
Circle(midpoint,radius)
A circle consists of all points with a given distance from one point. This point is called midpoint, the distance is called radius.
A circle can be constructed by providing a midpoint and a point on the circle or a midpoint and a radius (given as a number, function,
line, or circle).
// Create a circle providing two points var p1 = board.create('point', [2.0, 2.0]); var p2 = board.create('point', [2.0, 0.0]); var c1 = board.create('circle', [p1, p2]); // Create another circle using the above circle var p3 = board.create('point', [3.0, 2.0]); var c2 = board.create('circle', [p3, c1]);
- Parameters:
- {JXG.Point_number|JXG.Point|JXG.Line|JXG.Circle} midpoint,radius
- The midpoint must be given as a JXG.Point, but the radius can be given as a number (which will create a circle with a fixed radius), another JXG.Point, a JXG.Line (the distance of start and end point of the line will determine the radius), or another JXG.Circle.
- Throws:
- {Exception}
- If the element cannot be constructed with the given parent objects an exception is thrown.