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Elements
Classes

Class Polygon

JXG.GeometryElement
   ↳ JXG.Polygon
         ↳ Polygon

A polygon is an area enclosed by a set of border lines which are determined by

Each two consecutive points of the list define a line.

Defined in: polygon.js.
Extends JXG.Polygon.

Class Summary
Constructor Attributes Constructor Name and Description
 
Polygon(vertices)
Fields borrowed from class JXG.GeometryElement:
_org_type, _pos, ancestors, baseElement, board, childElements, dash, 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, isReal, lastDragTime, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, precision, quadraticform, rendNode, rotatable, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, tabindex, trace, traceAttributes, traces, transformations, transitionDuration, transitionProperties, type, visible, visProp, visPropCalc, withLabel
Field Summary
Field Attributes Field Name and Description
 
Attributes for the polygon border lines.
 
If true, moving the mouse over inner points triggers hasPoint.
 
Attributes for the polygon label.
 
Attributes for the polygon vertices.
 
Is the polygon bordered by lines?
Fields borrowed from class JXG.GeometryElement:
_org_type, _pos, ancestors, baseElement, board, childElements, dash, 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, isReal, lastDragTime, methodMap, mouseover, name, needsRegularUpdate, needsUpdate, notExistingParents, numTraces, parents, precision, quadraticform, rendNode, rotatable, scalable, shadow, snapToGrid, stdform, strokeColor, strokeOpacity, strokeWidth, subs, symbolic, tabindex, trace, traceAttributes, traces, transformations, transitionDuration, transitionProperties, type, visible, visProp, visPropCalc, withLabel
Methods borrowed from class JXG.Polygon:
addPoints, Area, boundingBox, findPoint, getTextAnchor, hasPoint, hideElement, insertPoints, intersect, Perimeter, pnpoly, remove, removePoints, setPositionDirectly, showElement, sutherlandHodgman, updateRenderer
Methods borrowed from class JXG.GeometryElement:
_set, addChild, addDescendants, addParents, addParentsFromJCFunctions, addRotation, addTicks, addTransform, animate, bounds, clearTrace, cloneToBackground, countChildren, createGradient, createLabel, draggable, fullUpdate, generatePolynomial, getAttribute, getAttributes, getLabelAnchor, getName, getParents, getProperty, getSnapSizes, getType, handleSnapToGrid, hide, labelColor, noHighlight, normalize, prepareUpdate, removeAllTicks, removeChild, removeDescendants, removeTicks, resolveShortcuts, setArrow, setAttribute, setDash, setDisplayRendNode, setLabel, setLabelText, setName, setParents, setPosition, setProperty, show, snapToPoints, update, updateVisibility
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
Polygon(vertices)
Parameters:
{Array} vertices
The polygon's vertices. If the first and the last vertex don't match the first one will be added to the array by the creator. Here, two points match if they have the same 'id' attribute. Additionally, a polygon can be created by providing a polygon and a transformation (or an array of transformations). The result is a polygon which is the transformation of the supplied polygon.


Throws:
{Exception}
If the element cannot be constructed with the given parent objects an exception is thrown.
Examples:
var p1 = board.create('point', [0.0, 2.0]);
var p2 = board.create('point', [2.0, 1.0]);
var p3 = board.create('point', [4.0, 6.0]);
var p4 = board.create('point', [1.0, 4.0]);

var pol = board.create('polygon', [p1, p2, p3, p4]);

				
				
var p = [[0.0, 2.0], [2.0, 1.0], [4.0, 6.0], [1.0, 3.0]];

var pol = board.create('polygon', p, {hasInnerPoints: true});

				
				
  var f1 = function() { return [0.0, 2.0]; },
      f2 = function() { return [2.0, 1.0]; },
      f3 = function() { return [4.0, 6.0]; },
      f4 = function() { return [1.0, 4.0]; },
      cc1 = board.create('polygon', [f1, f2, f3, f4]);
      board.update();


				
				
var t = board.create('transform', [2, 1.5], {type: 'scale'});
var a = board.create('point', [-3,-2], {name: 'a'});
var b = board.create('point', [-1,-4], {name: 'b'});
var c = board.create('point', [-2,-0.5], {name: 'c'});
var pol1 = board.create('polygon', [a,b,c], {vertices: {withLabel: false}});
var pol2 = board.create('polygon', [pol1, t], {vertices: {withLabel: true}});


				
                
Field Detail
{Line} borders
Attributes for the polygon border lines.
Defined in: options.js.

{Boolean} hasInnerPoints
If true, moving the mouse over inner points triggers hasPoint.
Defined in: options.js.
See:
JXG.GeometryElement#hasPoint
Default Value:
false

{Label} label
Attributes for the polygon label.
Defined in: options.js.

{Point} vertices
Attributes for the polygon vertices.
Defined in: options.js.

{Boolean} withLines
Is the polygon bordered by lines?
Defined in: options.js.
Default Value:
true

Documentation generated by JsDoc Toolkit 2.4.0 on Thu Feb 23 2023 14:49:33 GMT-0000 (UTC)