JSXGraph Reference
ElementsElement Orthogonalprojection
JXG.GeometryElement
↳ JXG.Point
↳ Orthogonalprojection
This is used to construct a point that is the orthogonal projection of a point to a line.
Defined in: Composition.js.
Extends
JXG.Point.
| Constructor Attributes | Constructor Name and Description |
|---|---|
|
An orthogonal projection is given by a point and a line.
|
Element Detail
Orthogonalprojection
An orthogonal projection is given by a point and a line. It is determined by projecting the given point
orthogonal onto the given line.
-
This element has no direct constructor. To create an instance of this element you have to call JXG.Board#create
with type "orthogonalprojection".
- Possible parent array combinations are:
-
{JXG.Line} p
{JXG.Point} l
- The constructed point is the orthogonal projection of p onto l.
- Throws:
- {Error}
- If the element cannot be constructed with the given parent objects an exception is thrown.
- Examples:
var p1 = board.create('point', [0.0, 4.0]);
var p2 = board.create('point', [6.0, 1.0]);
var l1 = board.create('line', [p1, p2]);
var p3 = board.create('point', [3.0, 3.0]);
var pp1 = board.create('orthogonalprojection', [p3, l1]);
Attributes borrowed from other Elements
- Attributes borrowed from class JXG.Point:
- attractorDistance, attractors, face, showInfobox, size, snapSizeX, snapSizeY, snapToGrid, snapToPoints, snatchDistance, style
- 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.Point:
- coords, group, onPolygon, position
- 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.Point:
- _anim, addConstraint, addTransform, Dist, free, handleAttractors, handleSnapToGrid, handleSnapToPoints, hasPoint, makeGlider, moveAlong, moveTo, normalizeFace, remove, setGliderPosition, setPosition, setPositionByTransform, setPositionDirectly, setStyle, update, updateConstraint, updateGlider, updateGliderFromParent, updateRenderer, updateTransform, visit, X, XEval, Y, YEval, Z, ZEval
- 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, resolveShortcuts, setArrow, setAttribute, setDash, setLabelText, setProperty, setStraight, showElement, triggerEventHandlers