Class Perpendicularpoint
Extends
JXG.Point.
This is used to construct a perpendicular point.
Defined in: Composition.js.
Constructor Attributes | Constructor Name and Description |
---|---|
Perpendicularpoint(p,l)
A perpendicular point is given by a point and a line.
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- Fields borrowed from class JXG.Point:
- attractorDistance, attractors, showInfobox, snapSizeX, snapSizeY, snapToGrid, snapToPoints, snatchDistance, style
- Fields borrowed from class JXG.GeometryElement:
- addEvent, ancestors, board, childElements, dash, descendants, draft, dump, elementClass, elType, eventHandlers, fillColor, fillOpacity, fixed, frozen, getAttribute, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, isDraggable, isReal, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, quadraticform, removeEvent, scalable, shadow, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, trace, traceAttributes, traces, transformations, type, visible, visProp, withLabel
- Methods borrowed from class JXG.Point:
- addConstraint, addTransform, Dist, face, free, handleAttractors, handleSnapToGrid, handleSnapToPoints, makeGlider, moveAlong, moveTo, normalizeFace, remove, setGliderPosition, setPosition, setPositionByTransform, setPositionDirectly, size, update, updateTransform, visit, X, Y, Z
- Methods borrowed from class JXG.GeometryElement:
- addChild, addRotation, animate, bounds, clearTrace, cloneToBackground, createLabel, getAttributes, getLabelAnchor, getName, getParents, getProperty, getTextAnchor, getType, hasPoint, hideElement, labelColor, noHighlight, off, on, resolveShortcuts, setArrow, setAttribute, setLabelText, setProperty, showElement, triggerEventHandlers
- 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
Perpendicularpoint(p,l)
A perpendicular point is given by a point and a line. It is determined by projecting the given point
orthogonal onto the given line. This used in GEONExTReader only. All other applications should use
orthogonal projection.
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('perpendicularpoint', [p3, l1]);
- Parameters:
- {JXG.Line_JXG.Point} p,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.