JSXGraph Reference
ElementsElement Tangent
JXG.GeometryElement
↳ JXG.Line
↳ Tangent
With the element tangent the slope of a line, circle, or curve in a certain point can be visualized. A tangent is always constructed
by a glider on a line, circle, or curve and describes the tangent in the glider point on that line, circle, or curve.
Defined in: Line.js.
Extends
JXG.Line.
| Constructor Attributes | Constructor Name and Description |
|---|---|
Element Detail
Tangent
-
This element has no direct constructor. To create an instance of this element you have to call JXG.Board#create
with type "tangent".
- Possible parent array combinations are:
-
{Glider} g
- A glider on a line, circle, or curve.
- Throws:
- {Exception}
- If the element cannot be constructed with the given parent objects an exception is thrown.
- Examples:
// Create a tangent providing a glider on a function graph
var c1 = board.create('curve', [function(t){return t},function(t){return t*t*t;}]);
var g1 = board.create('glider', [0.6, 1.2, c1]);
var t1 = board.create('tangent', [g1]);
Attributes borrowed from other Elements
- 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.Line:
- defaultTicks, parentPolygon, point1, point2, ticks
- 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.Line:
- addTicks, addTransform, generatePolynomial, getAngle, getRise, getSlope, hasPoint, maxX, minX, removeAllTicks, removeTicks, setLabelRelativeCoords, setPosition, setPositionDirectly, setStraight, update, updateRenderer, updateSegmentFixedLength, updateStdform, X, Y, Z
- Methods borrowed from class JXG.GeometryElement:
- _set, addChild, addDescendants, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, getAttributes, getLabelAnchor, getName, getParents, getProperty, getTextAnchor, getType, hideElement, labelColor, noHighlight, normalize, off, on, prepareUpdate, remove, resolveShortcuts, setArrow, setAttribute, setDash, setLabelText, setProperty, showElement, triggerEventHandlers