Element Ellipse
JXG.GeometryElement
↳ JXG.Curve
↳ Conic
↳ Ellipse
This element is used to provide a constructor for an ellipse. An ellipse is given by two points (the foci) and a third point on the ellipse or
the length of the major axis.
Defined in: conic.js.
Extends
Conic.
| Constructor Attributes | Constructor Name and Description |
|---|---|
- Methods borrowed from class JXG.Curve:
- addTransform, allocatePoints, generateTerm, getTransformationSource, hasPoint, interpolationFunctionFromArray, maxX, minX, moveTo, notifyParents, update, updateCurve, updateDataArray, updateRenderer, updateTransform, X, Y, Z
- Methods borrowed from class JXG.GeometryElement:
- _set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, formatNumberLocale, fullUpdate, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getSnapSizes, getTextAnchor, getType, handleSnapToGrid, hide, hideElement, noHighlight, normalize, prepareUpdate, remove, removeAllTicks, removeChild, removeDescendants, removeTicks, resolveShortcuts, setArrow, setAttribute, setDash, setDisplayRendNode, setLabel, setLabelText, setName, setParents, setPosition, setPositionDirectly, setProperty, show, showElement, snapToPoints, updateVisibility, useLocale
- Events borrowed from class JXG.GeometryElement:
- attribute, attribute:key, down, drag, keydrag, mousedown, mousedrag, mousemove, mouseout, mouseover, mouseup, move, out, over, pendown, pendrag, penup, touchdown, touchdrag, touchup, up
Element Detail
Ellipse
-
This element has no direct constructor. To create an instance of this element you have to call JXG.Board#create
with type "ellipse".
- Possible parent array combinations are:
-
{JXG.Point|array} point1
{JXG.Point|array} point2
{JXG.Point|array} point3
- Parent elements can be three elements either of type JXG.Point or array of numbers describing the coordinates of a point. In the latter case the point will be constructed automatically as a fixed invisible point.
-
{JXG.Point|array} point1
{JXG.Point|array} point2
{number|function} number
- Parent elements can be two elements either of type JXG.Point or array of numbers describing the coordinates of a point. The third parameter is a number/function which defines the length of the major axis
-
{Number} start
- (Optional) parameter of the curve start, default: 0.
-
{Number} end
- (Optional) parameter for the curve end, default: 2π.
- Throws:
- {Exception}
- If the element cannot be constructed with the given parent objects an exception is thrown.
- Examples:
// Create an Ellipse by three points
var A = board.create('point', [-1,4]);
var B = board.create('point', [-1,-4]);
var C = board.create('point', [1,1]);
var el = board.create('ellipse',[A,B,C]);
// Create an elliptical arc
var p1 = board.create('point', [-1, 2]);
var p2 = board.create('point', [ 1, 2]);
var p3 = board.create('point', [0, 3]);
var ell = board.create('ellipse', [
p1, p2, p3, 0, Math.PI], {
lastArrow: {type: 7}
});
Attributes borrowed from other Elements
- Attributes borrowed from class Conic:
- center, foci, line, point
- Attributes borrowed from class JXG.Curve:
- lineCap
- Attributes borrowed from class JXG.GeometryElement:
- dash, dashScale, draft, dragToTopOfLayer, fillColor, fillOpacity, fixed, frozen, gradient, gradientAngle, gradientCX, gradientCY, gradientEndOffset, gradientFR, gradientFX, gradientFY, gradientR, gradientSecondColor, gradientSecondOpacity, gradientStartOffset, highlight, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, isLabel, layer, needsRegularUpdate, nonnegativeOnly, precision, priv, rotatable, scalable, shadow, snapToGrid, strokeColor, strokeOpacity, strokeWidth, tabindex, trace, traceAttributes, transitionDuration, transitionProperties, viewport, visible, withLabel
Fields borrowed from other Elements
- Fields borrowed from class JXG.Curve:
- dataX, dataY, numberPoints, qdt, ticks
- Fields borrowed from class JXG.GeometryElement:
- _org_type, _pos, ancestors, baseElement, board, childElements, descendants, dump, elementClass, elType, hasLabel, highlighted, id, inherits, isDraggable, isReal, lastDragTime, methodMap, mouseover, name, needsUpdate, notExistingParents, numTraces, parents, quadraticform, rendNode, stdform, subs, symbolic, traces, transformations, type, visProp, visPropCalc
Methods borrowed from other Elements
- Methods borrowed from class JXG.Curve:
- addTransform, allocatePoints, generateTerm, getTransformationSource, hasPoint, interpolationFunctionFromArray, maxX, minX, moveTo, notifyParents, update, updateCurve, updateDataArray, updateRenderer, updateTransform, X, Y, Z
- Methods borrowed from class JXG.GeometryElement:
- _set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, formatNumberLocale, fullUpdate, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getSnapSizes, getTextAnchor, getType, handleSnapToGrid, hide, hideElement, noHighlight, normalize, prepareUpdate, remove, removeAllTicks, removeChild, removeDescendants, removeTicks, resolveShortcuts, setArrow, setAttribute, setDash, setDisplayRendNode, setLabel, setLabelText, setName, setParents, setPosition, setPositionDirectly, setProperty, show, showElement, snapToPoints, updateVisibility, useLocale
Events borrowed from other Elements