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複合チャートは、データをより解釈しやすく、分かりやすく見せる目的で、複数の種類のチャートを1つに統合したチャートです。複合チャートは、互いにまったく関連性がない数種のデータ(価格と量など)を視覚化する場合や、1つまたは複数のデータ系列を第2軸にプロットする必要がある場合に便利です。
複合チャートには、ワークシートの列または行ごとにまとめたデータをプロットできます。複合チャートは、2段階で作成します。まず、縦棒チャートを作成します。次に、系列を追加し、チャートの種類を設定します。たとえば、折れ線チャートを追加します。
次の例では、複合チャートを使用して、月間登録件数、および男女別の分布(2種類のデータ)状況を表します。
次のコードは、スプレッドシートに複合チャートを追加する方法を示します。
// Spreadを初期化します。
var spread = new GC.Spread.Sheets.Workbook(document.getElementById('ss'), { sheetCount: 3 });
// アクティブシートを取得します。
var activeSheet = spread.getSheet(0);
// チャートのデータを準備します。
var dataArray = [["", "JAN", "FEB", "MAR", "APR", "MAY", "JUN", "JUL", "AUG", "SEP", "OCT", "NOV", "DEC"],
["MEN", 327, 1776, 507, 1200, 800, 482, 204, 1390, 1001, 951, 381, 220],
["WOMEN", 709, 1917, 2455, 2610, 1719, 1433, 1544, 3285, 5208, 3372, 2484, 4078],
["TOTAL", 1036, 3693, 2962, 3810, 2519, 1915, 1748, 4675, 6209, 4323, 2865, 4298]
];
activeSheet.setArray(0, 0, dataArray);
var chartType = [{
type: GC.Spread.Sheets.Charts.ChartType.columnClusterd,
comboType: GC.Spread.Sheets.Charts.ChartType.lineMarkers
}];
// 複合チャートを追加します。
var chart = activeSheet.charts.add('ComboChart', chartType[0].type, 10, 120, 900, 300, "A1:M3", GC.Spread.Sheets.Charts.RowCol.rows);
chart.title({ text: "Monthly Registration Number and Distribution of Men and Women" });
var seriesItem = {};
seriesItem.chartType = chartType[0].comboType;
seriesItem.border = { width: 3 };
seriesItem.name = 'A4';
seriesItem.xValues = 'B1:M1';
seriesItem.yValues = 'B4:M4';
chart.series().add(seriesItem);
var dataLabels = chart.dataLabels();
dataLabels.showValue = true;
dataLabels.showSeriesName = false;
dataLabels.showCategoryName = false;
var dataLabelPosition = GC.Spread.Sheets.Charts.DataLabelPosition;
dataLabels.position = dataLabelPosition.above;
chart.dataLabels(dataLabels);
ゲージチャートは、データの可視化ツールとしてひとつの値に対して複数のセグメントのスケールで表示します。針を使用して値を表示し、定義基準に対するKPIを素早く視覚化することに役立ちます。進捗情報、ターゲットメトリクス、プロジェクト期限などを表示するために非常に効果的なチャートです。
SpreadJSでは、Excelの同様に、複合チャートを使用してドーナツチャートと円チャートを組み合わせてゲージチャートを作成することができます。
次のサンプルコードは、SpreadJSにゲージチャートを作成する方法を示します。
var spread;
window.onload = function () {
spread = new GC.Spread.Sheets.Workbook(document.getElementById("ss"), {
sheetCount: 1
});
initSpread(spread);
};
function initSpread(spread) {
var sheets = spread.sheets;
spread.suspendPaint();
var sheet1 = sheets[0];
initsheet1(sheet1);
var chart2 = initChart(sheet1, GC.Spread.Sheets.Charts.ChartType.doughnut); // チャートを追加します。
chart2.title({
text: "年間パフォーマンス"
});
adjustDoughnutSeries(chart2);
addPieSeries(chart2)
spread.resumePaint();
}
function initsheet1(sheet) {
var dataArray1 = [
['パフォーマンスラベル', '値'],
["悪い", 20],
["平均", 50],
["良い", 20],
["優秀", 10],
["合計", 100],
];
sheet.setArray(0, 0, dataArray1);
var dataArray2 = [
["ラベル", "値"],
["ポインター", 65],
["厚さ", 2],
["REST", 154],
];
sheet.setArray(0, 6, dataArray2);
sheet.setFormula(3, 7, "=200-H2-H3");
sheet.name("パフォーマンスラベル");
}
function initChart(sheet, type) {
// チャートを追加します。
let chart = sheet.charts.add((sheet.name() + 'Chart1'), type, 0, 250, 600, 340, "A1:B6", GC.Spread.Sheets.Charts.RowCol.column);
return chart
}
function adjustDoughnutSeries(chart) {
let doughnutSeries1 = chart.series().get(0);
doughnutSeries1.startAngle = 270;
doughnutSeries1.doughnutHoleSize = 0.5;
var dataLabels = doughnutSeries1.dataLabels || {};
dataLabels.showCategoryName = true
var dataLabelPosition = GC.Spread.Sheets.Charts.DataLabelPosition;
dataLabels.position = dataLabelPosition.outsideEnd;
doughnutSeries1.dataPoints[0] = {
backColor: "rgb(192,0,0)"
}
doughnutSeries1.dataPoints[1] = {
backColor: "rgb(255,255,0)"
}
doughnutSeries1.dataPoints[2] = {
backColor: "rgb(68,144,96)"
}
doughnutSeries1.dataPoints[3] = {
backColor: "rgb(112,173,71)"
}
doughnutSeries1.dataPoints[4] = {
backColor: ""
}
chart.series().set(0, doughnutSeries1);
var legend = chart.legend();
legend.visible = false;
chart.legend(legend);
}
function addPieSeries(chart) {
var pieSeries = {};
pieSeries.chartType = GC.Spread.Sheets.Charts.ChartType.pie;
pieSeries.name = 'G1';
pieSeries.xValues = 'G2:G4';
pieSeries.yValues = 'H2:H4';
pieSeries.axisGroup = GC.Spread.Sheets.Charts.AxisGroup.secondary;
pieSeries.startAngle = 270;
pieSeries.dataPoints = {
0: {
backColor: "",
},
1: {
backColor: "red",
},
2: {
backColor: "",
},
}
chart.series().add(pieSeries);
}