JavaScript must be enabled in order for you to use JSXGraph and JSXGraph reference. However, it seems JavaScript is either disabled or not supported by your browser.

Class Index | File Index

Elements
Classes

Class Reflection

JXG.GeometryElement
      ↳ Reflection

This element is used to construct reflected elements (points, lines, circles, curves, polygons).

Defined in: composition.js.
Extends JXG.GeometryElement.

Class Summary
Constructor Attributes Constructor Name and Description
 
Reflection(p,l)
A reflected element (point, polygon, line or curve) is given by a given object of the same type and a line of reflection.
Fields borrowed from class JXG.GeometryElement:
_org_type, _pos, ancestors, baseElement, board, childElements, dash, dashScale, descendants, draft, dragToTopOfLayer, dump, elementClass, elType, fillColor, fillOpacity, fixed, frozen, gradient, gradientAngle, gradientCX, gradientCY, gradientEndOffset, gradientFR, gradientFX, gradientFY, gradientR, gradientSecondColor, gradientSecondOpacity, gradientStartOffset, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, inherits, isDraggable, isLabel, isReal, lastDragTime, layer, lineCap, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, precision, priv, quadraticform, rendNode, rotatable, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, tabindex, trace, traceAttributes, traces, transformations, transitionDuration, transitionProperties, visible, visProp, visPropCalc, withLabel
Field Summary
Field Attributes Field Name and Description
 
Type of transformation.
Fields borrowed from class JXG.GeometryElement:
_org_type, _pos, ancestors, baseElement, board, childElements, dash, dashScale, descendants, draft, dragToTopOfLayer, dump, elementClass, elType, fillColor, fillOpacity, fixed, frozen, gradient, gradientAngle, gradientCX, gradientCY, gradientEndOffset, gradientFR, gradientFX, gradientFY, gradientR, gradientSecondColor, gradientSecondOpacity, gradientStartOffset, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, inherits, isDraggable, isLabel, isReal, lastDragTime, layer, lineCap, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, precision, priv, quadraticform, rendNode, rotatable, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, tabindex, trace, traceAttributes, traces, transformations, transitionDuration, transitionProperties, visible, visProp, visPropCalc, withLabel
Methods borrowed from class JXG.GeometryElement:
_set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, addTransform, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, formatNumberLocale, fullUpdate, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getSnapSizes, getTextAnchor, getType, handleSnapToGrid, hasPoint, hide, hideElement, labelColor, noHighlight, normalize, prepareUpdate, remove, removeAllTicks, removeChild, removeDescendants, removeTicks, resolveShortcuts, setArrow, setAttribute, setDash, setDisplayRendNode, setLabel, setLabelText, setName, setParents, setPosition, setPositionDirectly, setProperty, show, showElement, snapToPoints, update, updateRenderer, 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
Class Detail
Reflection(p,l)
A reflected element (point, polygon, line or curve) is given by a given object of the same type and a line of reflection. It is determined by the reflection of the given element across the given line.
Parameters:
{JXG.Point|JXG.Line|JXG.Curve|JXG.Polygon_JXG.Line} p,l
The reflection element is the reflection of p across the line 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 rp1 = board.create('reflection', [p3, l1]);

				
				
        // Reflection of more elements
        // reflection line
        var li = board.create('line', [1,1,1], {strokeColor: '#aaaaaa'});

        var p1 = board.create('point', [-3,-1], {name: "A"});
        var q1 = board.create('reflection', [p1, li], {name: "A'"});

        var l1 = board.create('line', [1,-5,1]);
        var l2 = board.create('reflection', [l1, li]);

        var cu1 = board.create('curve', [[-3, -3, -2.5, -3, -3, -2.5], [-3, -2, -2, -2, -2.5, -2.5]], {strokeWidth:3});
        var cu2 = board.create('reflection', [cu1, li], {strokeColor: 'red', strokeWidth:3});

        var pol1 = board.create('polygon', [[-6,-3], [-4,-5], [-5,-1.5]]);
        var pol2 = board.create('reflection', [pol1, li]);

        var c1 = board.create('circle', [[-2,-2], [-2, -1]]);
        var c2 = board.create('reflection', [c1, li]);

        var a1 = board.create('arc', [[1, 1], [0, 1], [1, 0]], {strokeColor: 'red'});
        var a2 = board.create('reflection', [a1, li], {strokeColor: 'red'});

        var s1 = board.create('sector', [[-3.5,-3], [-3.5, -2], [-3.5,-4]], {
                          anglePoint: {visible:true}, center: {visible: true}, radiusPoint: {visible: true},
                          fillColor: 'yellow', strokeColor: 'black'});
        var s2 = board.create('reflection', [s1, li], {fillColor: 'yellow', strokeColor: 'black', fillOpacity: 0.5});

        var an1 = board.create('angle', [[-4,3.9], [-3, 4], [-3, 3]]);
        var an2 = board.create('reflection', [an1, li]);


				
                
Field Detail
{String} type
Type of transformation. Possible values are 'Euclidean', 'projective'. If the value is 'Euclidean', the reflected element of a circle is again a circle, otherwise it is a conic section.
Defined in: options.js.
Default Value:
'Euclidean'

Documentation generated by JsDoc Toolkit 2.4.0 on Sun Nov 12 2023 23:09:27 GMT-0000 (UTC)