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Elements

Classes


Class Parabola

JXG.GeometryElement
   ↳ JXG.Curve
      ↳ Conic
            ↳ Parabola

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.
Extends Conic.

Class Summary
Constructor Attributes Constructor Name and Description
 
Parabola(point,line)
Fields borrowed from class Conic:
foci
Fields borrowed from class JXG.Curve:
dataX, dataY, numberPoints, qdt
Fields borrowed from class JXG.GeometryElement:
_org_type, _pos, ancestors, baseElement, board, childElements, dash, descendants, draft, dump, elementClass, elType, fillColor, fillOpacity, fixed, frozen, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, isDraggable, isReal, lastDragTime, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, quadraticform, rendNode, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, trace, traceAttributes, traces, transformations, type, visible, visProp, withLabel
Fields borrowed from class Conic:
foci
Fields borrowed from class JXG.Curve:
dataX, dataY, numberPoints, qdt
Fields borrowed from class JXG.GeometryElement:
_org_type, _pos, ancestors, baseElement, board, childElements, dash, descendants, draft, dump, elementClass, elType, fillColor, fillOpacity, fixed, frozen, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, isDraggable, isReal, lastDragTime, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, quadraticform, rendNode, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, trace, traceAttributes, traces, transformations, type, visible, visProp, withLabel
Methods borrowed from class JXG.Curve:
_borderCase, _insertPoint, _intersectWithBorder, _isOutside, _isUndefined, _plotRecursive, _triangleDists, addTransform, allocatePoints, checkReal, generateTerm, hasPoint, interpolationFunctionFromArray, isDistOK, isSegmentDefined, isSegmentOutside, maxX, minX, notifyParents, update, updateCurve, updateDataArray, updateParametricCurve, updateParametricCurveNaive, updateParametricCurveOld, updateRenderer, updateTransform, X, Y, Z
Methods borrowed from class JXG.GeometryElement:
_set, addChild, addDescendants, addParents, addRotation, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getTextAnchor, getType, handleSnapToGrid, hideElement, labelColor, noHighlight, normalize, prepareUpdate, remove, removeChild, removeDescendants, resolveShortcuts, setArrow, setAttribute, setDash, setLabel, setLabelText, setName, setParents, setPosition, setPositionDirectly, setProperty, showElement, snapToPoints
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)
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.
Examples:
// 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]);

				
                

Documentation generated by JsDoc Toolkit 2.4.0 on Sat Dec 03 2016 16:20:02 GMT-0000 (UTC)