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Elements
Classes

Element Comb

JXG.GeometryElement
   ↳ JXG.Curve
         ↳ Comb

A comb to display domains of inequalities.

Defined in: comb.js.
Extends JXG.Curve.

Element Summary
Constructor Attributes Constructor Name and Description
 
Comb
Attributes Summary
Field Attributes Field Name and Description
 
angle
Angle - given in radians - under which comb elements are positioned.
 
frequency
Frequency of comb elements.
 
point1
Attributes for first defining point of the comb.
 
point2
Attributes for second defining point of the comb.
 
reverse
Should the comb go right to left instead of left to right.
 
width
Width of the comb.
Methods borrowed from class JXG.Curve:
addTransform, allocatePoints, generateTerm, getTransformationSource, hasPoint, interpolationFunctionFromArray, maxX, minX, moveTo, notifyParents, update, updateCurve, updateDataArray, updateRenderer, updateTransform, X, Y, Z
Methods borrowed from class JXG.GeometryElement:
_set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, animate, bounds, 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
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
Comb
This element has no direct constructor. To create an instance of this element you have to call JXG.Board#create with type "comb".

Possible parent array combinations are:
{JXG.Point|array|function} point1
{JXG.Point|array|function} point2

Parent elements can be two elements either of type JXG.Point or array of numbers describing the coordinates of a point. In the latter case the point will be constructed automatically as a fixed invisible point. It is possible to provide a function returning an array or a point, instead of providing an array or a point.


Throws:
{Error}
If the element cannot be constructed with the given parent objects an exception is thrown. Parameter options:
Examples:
// Create a simple horizontal comb with invisible endpoints
var c = board.create('comb', [[1, 0], [3, 0]]);



				
				
var p1 = board.create('glider', [-3, 0, board.defaultAxes.x]);
var p2 = board.create('glider', [-1, 0, board.defaultAxes.x]);
var c1 = board.create('comb', [p1, p2], {width: 0.2, frequency: 0.1, angle: Math.PI / 4});





				
				
var s = board.create('slider', [[1,3], [4,3], [0.1, 0.3, 0.8]]);
var p1 = board.create('glider', [-3, 0, board.defaultAxes.x]);
var p2 = board.create('glider', [-1, 0, board.defaultAxes.x]);
var c1 = board.create('comb', [p1, p2], {
    width: function(){ return 4*s.Value(); },
    reverse: function(){ return (s.Value()<0.5) ? false : true; },
    frequency: function(){ return s.Value(); },
    angle: function(){ return s.Value() * Math.PI / 2; },
    curve: {
        strokeColor: 'red'
    }
});





				
                

				


			

			


			
				

    				 Attribute Detail
				

				
					 
					


					{Number}
					angle

					

					

						Angle - given in radians - under which comb elements are positioned.
						
							

							Defined in:  options.js.
						
						
					


					

						
						
						
						
							

							
Default Value:

							

								Math.PI / 3 (i.e. π /3  or 60^° degrees)
							

							

						

					

				
					 
					


					{Number}
					frequency

					

					

						Frequency of comb elements.
						
							

							Defined in:  options.js.
						
						
					


					

						
						
						
						
							

							
Default Value:

							

								0.2
							

							

						

					

				
					 
					


					{Point}
					point1

					

					

						Attributes for first defining point of the comb.
						
							

							Defined in:  options.js.
						
						
					


					

						
						
						
						

					

				
					 
					


					{Point}
					point2

					

					

						Attributes for second defining point of the comb.
						
							

							Defined in:  options.js.
						
						
					


					

						
						
						
						

					

				
					 
					


					{Boolean}
					reverse

					

					

						Should the comb go right to left instead of left to right.
						
							

							Defined in:  options.js.
						
						
					


					

						
						
						
						
							

							
Default Value:

							

								false
							

							

						

					

				
					 
					


					{Number}
					width

					

					

						Width of the comb.
						
							

							Defined in:  options.js.
						
						
					


					

						
						
						
						
							

							
Default Value:

							

								0.4
							

							

						

					
				
			


			


			


			

			


			
                
                

                    Attributes borrowed from other Elements
                


                

                
Attributes borrowed from class JXG.Curve: 
lineCap
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, needsRegularUpdate, nonnegativeOnly, 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.Curve: 
dataX, dataY, numberPoints, qdt, ticks
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

				

				

				

				
				

					Methods borrowed from other Elements
				

				

				
Methods borrowed from class JXG.Curve: 
addTransform, allocatePoints, generateTerm, getTransformationSource, hasPoint, interpolationFunctionFromArray, maxX, minX, moveTo, notifyParents, update, updateCurve, updateDataArray, updateRenderer, updateTransform, X, Y, Z
Methods borrowed from class JXG.GeometryElement: 
_set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, animate, bounds, 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

				

				

                

                
   				

    				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 Wed Oct 23 2024 15:44:12 GMT+0200 (Mitteleuropäische Sommerzeit)