SpreadJS supports waterfall charts. Use the GC.Spread.Sheets.Charts.ChartType.waterfall property to get the chart type. Waterfall charts show a running total as values are added or subtracted. They are useful for understanding how an initial value (for example, net income) is affected by a series of positive and negative values.
You can add a waterfall chart to SpreadJS and change its style using the chart API:
<template>
<div class="sample-tutorial">
<gc-spread-sheets class="sample-spreadsheets" @workbookInitialized="initSpread">
<gc-worksheet />
<gc-worksheet />
</gc-spread-sheets>
</div>
</template>
<script>
import Vue from "vue";
import "@mescius/spread-sheets-vue";
import GC from "@mescius/spread-sheets";
import "@mescius/spread-sheets-shapes";
import "@mescius/spread-sheets-charts";
import "./styles.css";
let App = Vue.extend({
name: "app",
data: function () {
return {
spread: null,
};
},
methods: {
initSpread(spread) {
let sheets = spread.sheets;
spread.suspendPaint();
spread.fromJSON(data);
let customWaterfallChart = sheets[0].charts.add("customWaterfallChart", GC.Spread.Sheets.Charts.ChartType.waterfall, 400, 0, 700, 450, "B2:C15");
let baseWaterfallChart = sheets[1].charts.add("baseWaterfallChart", GC.Spread.Sheets.Charts.ChartType.waterfall, 400, 0, 700, 450, "B2:C15");
this.setCustomStyle(customWaterfallChart);
this.setBaseStyle(baseWaterfallChart);
spread.resumePaint();
},
setCustomStyle(chart) {
let chartArea = chart.chartArea();
chartArea.fontSize = 14;
chart.chartArea(chartArea);
let dataLabels = chart.dataLabels();
dataLabels.showValue = true;
dataLabels.color = 'rgb(64,60,61)';
dataLabels.position = GC.Spread.Sheets.Charts.DataLabelPosition.center;
chart.dataLabels(dataLabels);
let legend = chart.legend();
legend.position = GC.Spread.Sheets.Charts.LegendPosition.bottom;
chart.legend(legend)
let title = chart.title();
title.text = "Monthly Income";
title.fontSize = 16;
chart.title(title);
let series = chart.series().get(0);
series.showConnectorLines = true;
series.gapWidth = 0.2;
series.subtotals = [0, 13];
chart.series().set(0, series);
chart.formatOvers({
0: {
backColor: "rgb(61,198,147)",
},
1: {
backColor: "rgb(225,128,99)",
},
2: {
backColor: "rgb(91,188,214)",
}
});
},
setBaseStyle(chart) {
let title = chart.title();
title.text = "Monthly Income";
title.fontSize = 16;
chart.title(title);
let series = chart.series().get(0);
series.showConnectorLines = true;
series.subtotals = [13];
chart.series().set(0, series);
}
}
});
new Vue({
render: (h) => h(App),
}).$mount("#app");
</script>
<!doctype html>
<html style="height:100%;font-size:14px;">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" type="text/css" href="$DEMOROOT$/en/vue/node_modules/@mescius/spread-sheets/styles/gc.spread.sheets.excel2013white.css">
<!-- SystemJS -->
<script src="$DEMOROOT$/en/vue/node_modules/systemjs/dist/system.src.js"></script>
<script src="systemjs.config.js"></script>
<script src="$DEMOROOT$/spread/source/data/waterfallData.js" type="text/javascript"></script>
<script>
System.import('./src/app.vue');
System.import('$DEMOROOT$/en/lib/vue/license.js');
</script>
</head>
<body>
<div id="app"></div>
</body>
</html>
.sample-tutorial {
position: relative;
height: 100%;
overflow: hidden;
}
.sample-spreadsheets {
width: 100%;
height:100%;
overflow: hidden;
float: left;
}
body {
position: absolute;
top: 0;
bottom: 0;
left: 0;
right: 0;
}
#app {
height: 100%;
}
(function (global) {
System.config({
transpiler: 'plugin-babel',
babelOptions: {
es2015: true
},
meta: {
'*.css': { loader: 'css' },
'*.vue': { loader: 'vue-loader' }
},
paths: {
// paths serve as alias
'npm:': 'node_modules/'
},
// map tells the System loader where to look for things
map: {
'@mescius/spread-sheets-shapes': 'npm:@mescius/spread-sheets-shapes/index.js',
'@mescius/spread-sheets-charts': 'npm:@mescius/spread-sheets-charts/index.js',
'@mescius/spread-sheets': 'npm:@mescius/spread-sheets/index.js',
'@mescius/spread-sheets-vue': 'npm:@mescius/spread-sheets-vue/index.js',
'@grapecity/jsob-test-dependency-package/react-components': 'npm:@grapecity/jsob-test-dependency-package/react-components/index.js',
'jszip': 'npm:jszip/dist/jszip.js',
'css': 'npm:systemjs-plugin-css/css.js',
'vue': 'npm:vue/dist/vue.min.js',
'vue-loader': 'npm:systemjs-vue-browser/index.js',
'tiny-emitter': 'npm:tiny-emitter/index.js',
'plugin-babel': 'npm:systemjs-plugin-babel/plugin-babel.js',
'systemjs-babel-build':'npm:systemjs-plugin-babel/systemjs-babel-browser.js'
},
// packages tells the System loader how to load when no filename and/or no extension
packages: {
src: {
defaultExtension: 'js'
},
rxjs: {
defaultExtension: 'js'
},
"node_modules": {
defaultExtension: 'js'
}
}
});
})(this);
