JSXGraph Reference
ElementsElement Locus
JXG.GeometryElement
↳ JXG.Curve
↳ Locus
This element is used to visualize the locus of a given dependent point.
Defined in: Composition.js.
Extends
JXG.Curve.
| Constructor Attributes | Constructor Name and Description |
|---|---|
|
The locus element is used to visualize the curve a given point describes.
|
| Field Attributes | Field Name and Description |
|---|---|
|
The time it took to calculate the locus
|
|
|
The implicit definition of the locus.
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Element Detail
Locus
The locus element is used to visualize the curve a given point describes.
-
This element has no direct constructor. To create an instance of this element you have to call JXG.Board#create
with type "locus".
- Possible parent array combinations are:
-
{JXG.Point} p
- The constructed curve is the geometric locus of the given point.
- Throws:
- {Error}
- If the element cannot be constructed with the given parent objects an exception is thrown.
- Examples:
// This examples needs JXG.Server up and running, otherwise it won't work.
p1 = board.create('point', [0, 0]);
p2 = board.create('point', [6, -1]);
c1 = board.create('circle', [p1, 2]);
c2 = board.create('circle', [p2, 1.5]);
g1 = board.create('glider', [6, 3, c1]);
c3 = board.create('circle', [g1, 4]);
g2 = board.create('intersection', [c2,c3,0]);
m1 = board.create('midpoint', [g1,g2]);
loc = board.create('locus', [m1], {strokeColor: 'red'});
Field Detail
{Number}
ctime
The time it took to calculate the locus
{String}
eq
The implicit definition of the locus.
Attributes borrowed from other Elements
- Attributes borrowed from class JXG.Curve:
- curveType, handDrawing
- Attributes borrowed from class JXG.GeometryElement:
- dash, draft, fillColor, fillOpacity, fixed, frozen, highlight, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, needsRegularUpdate, shadow, strokeColor, strokeOpacity, strokeWidth, trace, traceAttributes, visible, withLabel
Fields borrowed from other Elements
- Fields borrowed from class JXG.Curve:
- numberPoints
- Fields borrowed from class JXG.GeometryElement:
- addEvent, ancestors, baseElement, board, childElements, descendants, dump, elementClass, elType, eventHandlers, getAttribute, hasLabel, highlighted, id, isDraggable, isReal, methodMap, mouseover, name, needsUpdate, notExistingParents, numTraces, quadraticform, removeEvent, stdform, subs, symbolic, traces, transformations, type, visProp
Methods borrowed from other Elements
- Methods borrowed from class JXG.Curve:
- addTransform, allocatePoints, generateTerm, hasPoint, isDistOK, isSegmentOutside, maxX, minX, notifyParents, setPosition, update, updateCurve, updateDataArray, updateParametricCurve, updateParametricCurveNaive, updateRenderer, updateTransform, X, Y, Z
- Methods borrowed from class JXG.GeometryElement:
- _set, addChild, addDescendants, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, generatePolynomial, getAttributes, getLabelAnchor, getName, getParents, getProperty, getTextAnchor, getType, hideElement, labelColor, noHighlight, normalize, off, on, prepareUpdate, remove, resolveShortcuts, setArrow, setAttribute, setDash, setLabelText, setProperty, setStraight, showElement, triggerEventHandlers