In FlexChart, you can create different plot areas for different series within a single chart area. This increases the viewability of data by displaying each series in a separate plot area across one axis, keeping other axis fixed.
The following image displays a chart that consists of three plot areas across Y axis:
The following code example demonstrates how to create plot areas in FlexChart. This example uses the sample created in the Quick Start section.
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@using C1MvcWebAppPlotAreas.Models
@model IEnumerable<FruitSale>
<script>
var flexChart;
c1.documentReady(function () {
flexChart = wijmo.Control.getControl('#flexChart');
addPlotArea(0, "plot1", { fill: 'rgba(136,189,230,0.2)' }, null);
addPlotArea(1, "div1",null, 20);
addPlotArea(2, "plot2", { fill: 'rgba(136,189,230,0.2)' }, null);
addPlotArea(3, "div2", null, 20);
addPlotArea(4, "plot3", { fill: 'rgba(136,189,230,0.2)' }, null);
flexChart.series[1].axisY.plotArea = flexChart.plotAreas.getPlotArea('plot2');
flexChart.series[2].axisY.plotArea = flexChart.plotAreas.getPlotArea('plot3');
});
function addPlotArea(row, name, style, height) {
var plotArea = new wijmo.chart.PlotArea();
plotArea.row = row;
plotArea.name = name;
if (style) {
plotArea.style = style;
}
if (height) {
plotArea.height = height;
}
flexChart.plotAreas.push(plotArea);
}
</script>
@(Html.C1().FlexChart().Id("flexChart").ChartType(C1.Web.Mvc.Chart.ChartType.Area)
.CssClass("chart").Bind(Model).BindingX("Date")
.AxisX(axis => axis.Title("Date"))
.Series(sers =>
{
sers.Add().Binding("SalesInUSA").Name("Sales In USA");
sers.Add().Binding("SalesInJapan").Name("Sales In Japan").AxisY(axis =>
axis.Position(C1.Web.Mvc.Chart.Position.Left).MajorGrid(true));
sers.Add().Binding("SalesInChina").Name("Sales In China").AxisY(axis =>
axis.Position(C1.Web.Mvc.Chart.Position.Left).MajorGrid(true));
})
)
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