Charts of dynamic data
Have also a look at "Chart styles".
Dynamic bar charts, i.e. data is given by functions depending on a slider, as well as line and point charts with shadows and legend.
// Define the id of your board in BOARDID
const board = JXG.JSXGraph.initBoard(BOARDID, {
boundingbox: [-1, 9, 13, -3],
axis: true
});
var s = board.create('slider', [
[1, 8],
[4, 8],
[1, 1, 1.5]
], {
name: 'S',
strokeColor: 'black',
fillColor: 'white'
});
var f = [function() {
return (s.Value() * 4.5).toFixed(2);
},
() => (s.Value() * (-1)).toFixed(2),
() => (s.Value() * 3).toFixed(2),
() => (s.Value() * 2).toFixed(2),
() => (s.Value() * (-0.5)).toFixed(2),
() => (s.Value() * 5.5).toFixed(2),
() => (s.Value() * 2.5).toFixed(2),
() => (s.Value() * (-0.75)).toFixed(2),
() => (s.Value() * 3.5).toFixed(2),
() => (s.Value() * 2).toFixed(2),
() => (s.Value() * (-1.25)).toFixed(2)
];
var colors = ['#8E1B77', '#BE1679', '#DC1765', '#DA2130', '#DB311B', '#DF4917', '#E36317', '#E87F1A', '#F1B112', '#FCF302', '#C1E212'];
var chart = board.create('chart', [f], {
chartStyle: 'bar',
width: 0.8,
labels: f,
colors: colors,
shadow: true
});
// Legend
var leg = board.create('legend', [10, 8.5], {
labels: f,
colorArray: colors
});
// Line and point chart
var dataArr = [4, 1, 3, 2, 5, 6.5, 1.5, 2, 0.5, 1.5, -1];
var chart2 = board.create('chart', dataArr, {
chartStyle: 'line,point',
shadow: true
});
// Add shadows to the bar chart.
chart2[0].setAttribute({strokeColor:'black', strokeWidth:3});
for (let i = 0; i < 11; i++) {
chart2[1][i].setAttribute({
strokeColor: 'black',
fillColor: 'white',
face: '[]',
size: 4,
strokeWidth: 2
});
}
This example is licensed under a Creative Commons Attribution 4.0 International License.
Please note that you have to mention The Center of Mobile Learning with Digital Technology in the credits.