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Elements
Classes

Element Label

JXG.CoordsElement,JXG.GeometryElement
   ↳ JXG.Text
         ↳ Label

Labels are text objects tied to other elements like points, lines and curves. Labels are handled internally by JSXGraph, only. There is NO constructor "board.create('label', ...)".

Defined in: text.js.
Extends JXG.Text.

Element Summary
Constructor Attributes Constructor Name and Description
 
Attributes Summary
Field Attributes Field Name and Description
 
Automatic position of label text.
 
The auto position algorithm tries to put a label to a conflict-free position around it's anchor element.
 
The auto position algorithm tries to put a label to a conflict-free position around it's anchor element.
 
Label offset from label anchor.
 
Possible string values for the position of a label for label anchor points are:
  • 'first' (lines only)
  • 'last' (lines only)
  • 'lft'
  • 'rt'
  • 'top'
  • 'bot'
  • 'ulft'
  • 'urt'
  • 'llft'
  • 'lrt'
This is relevant for non-points: line, circle, curve.
Methods borrowed from class JXG.Text:
_createFctUpdateText, _setText, bounds, checkForSizeUpdate, convertGeonext2CSS, convertGeonextAndSketchometry2CSS, convertSketchometry2CSS, crudeSizeEstimate, escapeTicks, expandShortMath, generateTerm, getAnchorX, getAnchorY, getNumberOfConflicts, getSize, hasPoint, notifyParents, poorMansTeX, replaceSub, replaceSup, setAutoPosition, setCoords, setText, setTextJessieCode, unescapeTicks, update, updateRenderer, updateSize, updateText, utf8_decode, valueTagToJessieCode
Methods borrowed from class JXG.GeometryElement:
_set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, addTransform, animate, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, formatNumberLocale, fullUpdate, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getSnapSizes, getTextAnchor, getType, handleSnapToGrid, hide, hideElement, noHighlight, normalize, prepareUpdate, remove, removeAllTicks, removeChild, removeDescendants, removeTicks, resolveShortcuts, setArrow, setAttribute, setDash, setDisplayRendNode, setLabel, setLabelText, setName, setParents, setPosition, setPositionDirectly, setProperty, show, showElement, snapToPoints, updateVisibility, useLocale
Methods borrowed from class JXG.CoordsElement:
_anim, addAnchor, addConstraint, Coords, Dist, findClosestSnapValue, free, handleAttractors, handleSnapToPoints, makeGlider, moveAlong, moveTo, popSlideObject, setGliderPosition, setPositionByTransform, updateConstraint, updateCoords, updateGlider, updateGliderFromParent, updateTransform, visit, X, XEval, Y, YEval, Z, ZEval
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
Element Detail
Label
Attribute Detail
{Boolean} autoPosition
Automatic position of label text. When called first, the positioning algorithm starts at the position defined by offset. The algorithm tries to find a position with the least number of overlappings with other elements, while retaining the distance to the anchor element.
Defined in: options.js.
	var p1 = board.create('point', [-2, 1], {id: 'A'});
	var p2 = board.create('point', [-0.85, 1], {
     name: 'B', id: 'B', label:{autoPosition: true, offset:[10, 10]}
 });
	var p3 = board.create('point', [-1, 1.2], {
     name: 'C', id: 'C', label:{autoPosition: true, offset:[10, 10]}
 });
 var c = board.create('circle', [p1, p2]);
	var l = board.create('line', [p1, p2]);


					
					

						
						
						
							
See:
Label#offset
Default Value:
false

{Number} autoPositionMaxDistance
The auto position algorithm tries to put a label to a conflict-free position around it's anchor element. For this, the algorithm tests 12 positions around the anchor element up to a distance from the anchor defined here (in pixel).
Defined in: options.js.
See:
Label#autoPosition
Label#autoPositionMinDistance
Default Value:
28

{Number} autoPositionMinDistance
The auto position algorithm tries to put a label to a conflict-free position around it's anchor element. For this, the algorithm tests 12 positions around the anchor element starting at a distance from the anchor defined here (in pixel).
Defined in: options.js.
See:
Label#autoPosition
Label#autoPositionMaxDistance
Default Value:
12

{Array} offset
Label offset from label anchor. The label anchor is determined by Label#position
Defined in: options.js.
See:
Label#position
Default Value:
[10,10]

{String} position
Possible string values for the position of a label for label anchor points are: This is relevant for non-points: line, circle, curve. The names have been borrowed from MetaPost.
Defined in: options.js.
See:
Label#offset
Default Value:
'urt'

Attributes borrowed from other Elements
Attributes borrowed from class JXG.GeometryElement:
dash, dashScale, draft, dragToTopOfLayer, fillColor, fillOpacity, fixed, frozen, gradient, gradientAngle, gradientCX, gradientCY, gradientEndOffset, gradientFR, gradientFX, gradientFY, gradientR, gradientSecondColor, gradientSecondOpacity, gradientStartOffset, highlight, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, isLabel, layer, lineCap, needsRegularUpdate, precision, priv, rotatable, scalable, shadow, snapToGrid, strokeColor, strokeOpacity, strokeWidth, tabindex, trace, traceAttributes, transitionDuration, transitionProperties, viewport, visible, withLabel

Fields borrowed from other Elements
Fields borrowed from class JXG.Text:
size
Fields borrowed from class JXG.GeometryElement:
_org_type, _pos, ancestors, baseElement, board, childElements, descendants, dump, elementClass, elType, hasLabel, highlighted, id, inherits, isDraggable, isReal, lastDragTime, methodMap, mouseover, name, needsUpdate, notExistingParents, numTraces, parents, quadraticform, rendNode, stdform, subs, symbolic, traces, transformations, type, visProp, visPropCalc
Fields borrowed from class JXG.CoordsElement:
coords, groups, isConstrained, needsUpdateFromParent, onPolygon, slideObject, slideObjects

Methods borrowed from other Elements
Methods borrowed from class JXG.Text:
_createFctUpdateText, _setText, bounds, checkForSizeUpdate, convertGeonext2CSS, convertGeonextAndSketchometry2CSS, convertSketchometry2CSS, crudeSizeEstimate, escapeTicks, expandShortMath, generateTerm, getAnchorX, getAnchorY, getNumberOfConflicts, getSize, hasPoint, notifyParents, poorMansTeX, replaceSub, replaceSup, setAutoPosition, setCoords, setText, setTextJessieCode, unescapeTicks, update, updateRenderer, updateSize, updateText, utf8_decode, valueTagToJessieCode
Methods borrowed from class JXG.GeometryElement:
_set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, addTransform, animate, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, formatNumberLocale, fullUpdate, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getSnapSizes, getTextAnchor, getType, handleSnapToGrid, hide, hideElement, noHighlight, normalize, prepareUpdate, remove, removeAllTicks, removeChild, removeDescendants, removeTicks, resolveShortcuts, setArrow, setAttribute, setDash, setDisplayRendNode, setLabel, setLabelText, setName, setParents, setPosition, setPositionDirectly, setProperty, show, showElement, snapToPoints, updateVisibility, useLocale
Methods borrowed from class JXG.CoordsElement:
_anim, addAnchor, addConstraint, Coords, Dist, findClosestSnapValue, free, handleAttractors, handleSnapToPoints, makeGlider, moveAlong, moveTo, popSlideObject, setGliderPosition, setPositionByTransform, updateConstraint, updateCoords, updateGlider, updateGliderFromParent, updateTransform, visit, X, XEval, Y, YEval, Z, ZEval

Events borrowed from other Elements
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
Documentation generated by JsDoc Toolkit 2.4.0 on Fri Mar 08 2024 12:21:02 GMT+0100 (Mitteleuropäische Normalzeit)