Class Arc
JXG.GeometryElement
↳ JXG.Curve
↳ Curve
↳ Arc
An arc is a segment of the circumference of a circle. It is defined by a center, one point that
defines the radius, and a third point that defines the angle of the arc.
Defined in: arc.js.
Extends
Curve.
Constructor Attributes | Constructor Name and Description |
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Arc(p1,p2,p3)
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- Fields borrowed from class Curve:
- curveType, doAdvancedPlot, doAdvancedPlotOld, handDrawing, numberPointsHigh, numberPointsLow, RDPsmoothing
- Fields borrowed from class JXG.Curve:
- dataX, dataY, numberPoints, qdt
- Fields borrowed from class JXG.GeometryElement:
- _org_type, _pos, ancestors, baseElement, board, childElements, dash, descendants, draft, dump, elementClass, elType, fillColor, fillOpacity, fixed, frozen, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, inherits, isDraggable, isReal, lastDragTime, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, quadraticform, rendNode, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, trace, traceAttributes, traces, transformations, transitionDuration, type, visible, visProp, visPropCalc, withLabel
Field Attributes | Field Name and Description |
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The point defining the arc's angle.
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Center of the arc.
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Point defining the arc's radius.
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Type of arc.
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- Fields borrowed from class Curve:
- curveType, doAdvancedPlot, doAdvancedPlotOld, handDrawing, numberPointsHigh, numberPointsLow, RDPsmoothing
- Fields borrowed from class JXG.Curve:
- dataX, dataY, numberPoints, qdt
- Fields borrowed from class JXG.GeometryElement:
- _org_type, _pos, ancestors, baseElement, board, childElements, dash, descendants, draft, dump, elementClass, elType, fillColor, fillOpacity, fixed, frozen, hasLabel, highlight, highlighted, highlightFillColor, highlightFillOpacity, highlightStrokeColor, highlightStrokeOpacity, highlightStrokeWidth, id, inherits, isDraggable, isReal, lastDragTime, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, quadraticform, rendNode, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, trace, traceAttributes, traces, transformations, transitionDuration, type, visible, visProp, visPropCalc, withLabel
Method Attributes | Method Name and Description |
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<deprecated> | |
hasPointSector(x, y)
Checks whether (x,y) is within the sector defined by the arc.
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Radius()
Determines the arc's current radius.
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Value()
Returns the length of the arc.
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- Methods borrowed from class JXG.Curve:
- _borderCase, _insertPoint, _intersectWithBorder, _isOutside, _isUndefined, _plotRecursive, _triangleDists, addTransform, allocatePoints, checkReal, generateTerm, hasPoint, interpolationFunctionFromArray, isDistOK, isSegmentDefined, isSegmentOutside, maxX, minX, moveTo, notifyParents, update, updateCurve, updateDataArray, updateParametricCurve, updateParametricCurveNaive, updateParametricCurveOld, updateRenderer, updateTransform, X, Y, Z
- Methods borrowed from class JXG.GeometryElement:
- _set, addChild, addDescendants, addParents, addRotation, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, fullUpdate, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getTextAnchor, getType, handleSnapToGrid, hideElement, labelColor, noHighlight, normalize, prepareUpdate, remove, removeChild, removeDescendants, resolveShortcuts, setArrow, setAttribute, setDash, setDisplayRendNode, setLabel, setLabelText, setName, setParents, setPosition, setPositionDirectly, setProperty, showElement, snapToPoints, updateVisibility
- 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
Arc(p1,p2,p3)
- Parameters:
- {JXG.Point_JXG.Point_JXG.Point} p1,p2,p3
- The result will be an arc of a circle around p1 through p2. The arc is drawn counter-clockwise from p2 to p3.
- Throws:
- {Error}
- If the element cannot be constructed with the given parent objects an exception is thrown.
- Examples:
// Create an arc out of three free points var p1 = board.create('point', [2.0, 2.0]); var p2 = board.create('point', [1.0, 0.5]); var p3 = board.create('point', [3.5, 1.0]); var a = board.create('arc', [p1, p2, p3]);
Field Detail
{JXG.Point}
anglepoint
The point defining the arc's angle.
{JXG.Point}
center
Center of the arc.
{JXG.Point}
radiuspoint
Point defining the arc's radius.
{String}
selection
Type of arc. Possible values are 'minor', 'major', and 'auto'.
Defined in: options.js.
Defined in: options.js.
- Default Value:
- 'auto'
Method Detail
{Number}
getRadius()
- Deprecated:
- Use Arc#Radius
- Returns:
- {Number}
{Boolean}
hasPointSector(x, y)
Checks whether (x,y) is within the sector defined by the arc.
- Parameters:
- {Number} x
- Coordinate in x direction, screen coordinates.
- {Number} y
- Coordinate in y direction, screen coordinates.
- Returns:
- {Boolean} True if (x,y) is within the sector defined by the arc, False otherwise.
{Number}
Radius()
Determines the arc's current radius. I.e. the distance between Arc#center and Arc#radiuspoint.
- Returns:
- {Number} The arc's radius
{Number}
Value()
Returns the length of the arc.
- Returns:
- {Number} The arc length