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(center,radius)
A circle consists of all points with a given distance from one point.
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- Fields borrowed from class JXG.Circle:
- center, circle, line, method, point2, radius
- Fields borrowed from class JXG.GeometryElement:
- addEvent, ancestors, board, childElements, dash, descendants, draft, dump, elementClass, elType, eventHandlers, fillColor, fillOpacity, fixed, frozen, getAttribute, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, isDraggable, isReal, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, quadraticform, removeEvent, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, trace, traceAttributes, traces, transformations, type, visible, visProp, withLabel
- Methods borrowed from class JXG.Circle:
- addTransform, getRadius, Radius, setPositionDirectly, setRadius, update, X, Y, Z
- Methods borrowed from class JXG.GeometryElement:
- addChild, addRotation, animate, bounds, clearTrace, cloneToBackground, createLabel, getAttributes, getLabelAnchor, getName, getParents, getProperty, getTextAnchor, getType, hasPoint, hideElement, labelColor, noHighlight, off, on, remove, resolveShortcuts, setArrow, setAttribute, setLabelText, setProperty, showElement, triggerEventHandlers
- Events borrowed from class JXG.GeometryElement:
- attribute, attribute:<attribute><attribute>, down, drag, mousedown, mousedrag, mousemove, mouseout, mouseover, mouseup, move, out, over, touchdown, touchdrag, touchup, up
Class Detail
Circle(center,radius)
A circle consists of all points with a given distance from one point. This point is called center, the distance is called radius.
A circle can be constructed by providing a center and a point on the circle or a center 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} center,radius
- The center 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.