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bar.chart.md

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BarChart

Data

  • REQUIRED data

    • data - set of data with DateTime keys and List<double> values based on which chart will be drawned.

  • Max Value

    • predefinedMaxValue - predefined max value for the chart.
    • maxValueRoundingMap - rounding map for the maxValue that is used by beautification function of Y axis labels.

  • Selection

    • initialSelectedPeriod - initial selected period of the bar chart, defaults to null.
    • onSelectedPeriodChanged - callback that notifies if selected period has changed, defaults to null.

  • Tooltip builders

    • titleBuilder - builds title of the tooltip based on DateTime key and/or List<double> value from provided data.
    • subtitleBuilder - builds subtitle of the tooltip based on DateTime key and/or List<double> value from provided data.

  • Label builder

    • xAxisLabelBuilder - builds X axis label based on DateTime value from provided data.
    • yAxisLabelBuilder - builds Y axis label based on double value from provided data, maxValue specifically.

Settings

  • yAxisDivisions - quantity of the Y axis divisions, defaults to 2.
  • xAxisLabelQuantity - quantity of the X axis labels to draw, defaults to null.
  • axisDivisionEdges - axis division edges, defaults to AxisDivisionEdges.none.
  • showAxisX - whether to show X axis or not, defaults to true.
  • showAxisXLabels - whether to show labels on the X axis or not, defaults to true.
  • showAxisXSelectedLabelIfConcealed - whether to show selected label if it is concealed by xAxisLabelQuantity, defaults to false.
  • showAxisYLabels - whether to show labels on the Y axis or not, defaults to true.
  • yAxisLayout - layout type of the Y axis labels, defaults to YAxisLayout.overlay.
  • yAxisLabelSpacing - spacing between the Y axis labels and chart itself, defaults to 0.
  • barSpacing - spacing between bars in one item, defaults to 0.
  • itemSpacing - spacing between group of bars, defaults to 12.
  • interaction - describes how user will be interacting with chart, defaults to InteractionType.selection.
  • duration - the length of time animation should last, defaults to 400 milliseconds.
  • alignment - alignment of the bars within chart, defaults to BarAlignment.end.
  • reverse - whether the scroll view scrolls in the reading direction, defaults to false.
  • fit - insription type of the bars within target box (painting zone), defaults to BarFit.none.

Style

  • gridStyle - styling options for the grid, for more details please refer to the source code of the BarChartGridStyle.
  • axisStyle - styling options for the axis, for more details please refer to the source code of the BarChartAxisStyle.
  • barStyle - styling options for the chart line, for more details please refer to the source code of the BarChartBarStyle.
  • tooltipStyle - styling options for the tooltip, for more details please refer to the source code of the TooltipStyle.