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Classes


Class Parabola


Extends JXG.Curve.
This element is used to provide a constructor for a parabola. A parabola is given by one point (the focus) and a line (the directrix).
Defined in: Conic.js.

Class Summary
Constructor Attributes Constructor Name and Description
 
Parabola(point,line)
Fields borrowed from class JXG.Curve:
curveType, handDrawing, numberPoints
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.Curve:
addTransform, allocatePoints, generateTerm, hasPoint, isDistOK, isSegmentOutside, maxX, minX, notifyParents, setPosition, setPositionDirectly, update, updateCurve, updateDataArray, updateParametricCurve, updateParametricCurveNaive, updateRenderer, updateTransform, Z
Methods borrowed from class JXG.GeometryElement:
addChild, addRotation, animate, bounds, clearTrace, cloneToBackground, createLabel, getAttributes, getLabelAnchor, getName, getParents, getProperty, getTextAnchor, getType, 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
Parabola(point,line)
// Create a parabola by a point C and a line l.
var A = board.create('point', [-1,4]);
var B = board.create('point', [-1,-4]);
var l = board.create('line', [A,B]);
var C = board.create('point', [1,1]);
var el = board.create('parabola',[C,l]);

				
				
				
				
					
						
Parameters:
{JXG.Point|array_JXG.Line} point,line
Parent elements are a point and a line. Optional parameters three and four are numbers which define the curve length (e.g. start/end). Default values are -pi and pi.
Throws:
{Exception}
If the element cannot be constructed with the given parent objects an exception is thrown.

Documentation generated by JsDoc Toolkit 2.4.0 on Thu May 30 2013 23:22:19 GMT+0200 (CEST)