Struct BarChart

plotter/barchart.go:19–51

A BarChart presents grouped data with rectangular bars with lengths proportional to the data values.

// A BarChart presents grouped data with rectangular bars
// with lengths proportional to the data values.
type BarChart struct {
	Values

	// Width is the width of the bars.
	Width vg.Length

	// Color is the fill color of the bars.
	Color color.Color

	// LineStyle is the style of the outline of the bars.
	draw.LineStyle

	// Offset is added to the X location of each bar.
	// When the Offset is zero, the bars are drawn
	// centered at their X location.
	Offset vg.Length

	// XMin is the X location of the first bar.  XMin
	// can be changed to move groups of bars
	// down the X axis in order to make grouped
	// bar charts.
	XMin float64

	// Horizontal dictates whether the bars should be in the vertical
	// (default) or horizontal direction. If Horizontal is true, all
	// X locations and distances referred to here will actually be Y
	// locations and distances.
	Horizontal bool

	// stackedOn is the bar chart upon which
	// this bar chart is stacked.
	stackedOn *BarChart
}

// NewBarChart returns a new bar chart with a single bar for each value.
// The bars heights correspond to the values and their x locations correspond