wchart

package

v2.18.6 Latest Latest Go to latest Published: Apr 30, 2024 License: MIT Imports: 19 Imported by: 3

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Repository

github.com/grokify/gocharts

Links

Open Source Insights

Documentation ¶

Index ¶

Variables
func ColorImageToDrawing(col color.RGBA) drawing.Color
func GridLines(values []float64, style chart.Style) []chart.GridLine
func MustParseColor(colorName string) drawing.Color
func ParseColor(colorName string) (drawing.Color, error)
func TSSToChart(data timeseries.TimeSeriesSet, opts ChartOptions) chart.Chart
func Ticks(tickValues []float64, fn strconvutil.Float64ToString) []chart.Tick
func TicksAndGridlinesTime(interval timeutil.Interval, timeStart, timeEnd time.Time, ...) ([]chart.Tick, []chart.GridLine)
func TicksInt64(tickValues []int64, fn strconvutil.Int64ToString) []chart.Tick
func TimeSeriesMapToContinuousSeriesMonths(dsm map[string]timeseries.TimeSeries, order []string) []chart.ContinuousSeries
func TimeSeriesMapToContinuousSeriesQuarters(dsm map[string]timeseries.TimeSeries, order []string) []chart.ContinuousSeries
func TimeSeriesToContinuousSeries(ds timeseries.TimeSeries) chart.ContinuousSeries
func TimeSeriesToContinuousSeriesQuarter(ds timeseries.TimeSeries) chart.ContinuousSeries
func WritePNG(w io.Writer, c ChartType) error
func WritePNGFile(filename string, c ChartType) error
type ChartOptions
type ChartType
type Colors
- func ColorsDefault() Colors
- func (c Colors) AxisStrokeColor() drawing.Color
- func (c Colors) BackgroundColor() drawing.Color
- func (c Colors) BackgroundStrokeColor() drawing.Color
- func (c Colors) CanvasColor() drawing.Color
- func (c Colors) CanvasStrokeColor() drawing.Color
- func (c Colors) GetSeriesColor(index int) drawing.Color
- func (c Colors) TextColor() drawing.Color
type Table
- func (tbl *Table) BoxPlot(values []float64) (*plotter.BoxPlot, error)
- func (tbl *Table) BoxPlotColNameWritePNGFile(filename, title, colName string) error
- func (tbl *Table) ScatterPlot(title, xColName, yColName string, dotWidth float64) (chart.Chart, error)
- func (tbl *Table) ScatterPlotWritePNG(w io.Writer, title, xColName, yColName string, dotWidth float64) error
- func (tbl *Table) ScatterPlotWritePNGFile(filename, title, xColName, yColName string, dotWidth float64) error
type TimeFormatter
- func (tvf *TimeFormatter) FormatTime(v any) string

Constants ¶

This section is empty.

Variables ¶

View Source

var (
	// ColorOrange is orange.
	ColorOrange = drawing.Color{R: 255, G: 165, B: 0, A: 255}

	// ColorGreen is green.
	ColorGreen = drawing.Color{R: 0, G: 255, B: 0, A: 255}
)

Functions ¶

func ColorImageToDrawing ¶

func ColorImageToDrawing(col color.RGBA) drawing.Color

ColorImageToDrawing converts a `color.RGBA` value to a `drawing.Color` value.

func GridLines ¶

func GridLines(values []float64, style chart.Style) []chart.GridLine

GridLines creates a `[]chart.GridLine` from a slice of `int64` and a style.

func MustParseColor ¶

func MustParseColor(colorName string) drawing.Color

MustParseColor returns a `drawing.Color` for the SVG color name. If the color name is not found, black is returned.

func ParseColor ¶

func ParseColor(colorName string) (drawing.Color, error)

ParseColor returns a `drawing.Color` for the SVG color name. If the color name is not found, an error is returned.

func TSSToChart ¶

func TSSToChart(data timeseries.TimeSeriesSet, opts ChartOptions) chart.Chart

TSSToChart converts a `TimeSeriesSet` to a `wcharczuk.Chart`.

func Ticks ¶

func Ticks(tickValues []float64, fn strconvutil.Float64ToString) []chart.Tick

Ticks converts a slice of `float64` to a slice of `chart.Tick`. Common formatting functions include `strconvutil.Commify` and `strconvutil.Int64Abbreviation`.

func TicksAndGridlinesTime ¶

func TicksAndGridlinesTime(interval timeutil.Interval, timeStart, timeEnd time.Time, styleMajor, styleMinor chart.Style, timeFormat func(time.Time) string, tickInterval, gridInterval timeutil.Interval) ([]chart.Tick, []chart.GridLine)

TicksAndGridlinesTime takes a start and end time and converts it to `[]chart.Tick` and `[]chart.GridLine.`.

func TicksInt64 ¶

func TicksInt64(tickValues []int64, fn strconvutil.Int64ToString) []chart.Tick

TicksInt64 converts a slice of `int64` to a slice of `chart.Tick`. Common formatting functions include `strconvutil.Commify` and `strconvutil.Int64Abbreviation`.

func TimeSeriesMapToContinuousSeriesMonths ¶

func TimeSeriesMapToContinuousSeriesMonths(dsm map[string]timeseries.TimeSeries, order []string) []chart.ContinuousSeries

func TimeSeriesMapToContinuousSeriesQuarters ¶

func TimeSeriesMapToContinuousSeriesQuarters(dsm map[string]timeseries.TimeSeries, order []string) []chart.ContinuousSeries

func TimeSeriesToContinuousSeries ¶

func TimeSeriesToContinuousSeries(ds timeseries.TimeSeries) chart.ContinuousSeries

func TimeSeriesToContinuousSeriesQuarter ¶

func TimeSeriesToContinuousSeriesQuarter(ds timeseries.TimeSeries) chart.ContinuousSeries

func WritePNG ¶

func WritePNG(w io.Writer, c ChartType) error

func WritePNGFile ¶ added in v2.18.1

func WritePNGFile(filename string, c ChartType) error

Types ¶

type ChartOptions ¶

type ChartOptions struct {
	LegendEnable    bool
	YAxisLeft       bool
	XAxisTimeLayout string
}

type ChartType ¶

type ChartType interface {
	Render(rp chart.RendererProvider, w io.Writer) error
}

type Colors ¶

type Colors struct {
	BackgroundColorVal       drawing.Color
	BackgroundStrokeColorVal drawing.Color
	CanvasColorVal           drawing.Color
	CanvasStrokeColorVal     drawing.Color
	AxisStrokeColorVal       drawing.Color
	TextColorVal             drawing.Color
	SeriesColorVal           drawing.Color
}

func ColorsDefault ¶

func ColorsDefault() Colors

func (Colors) AxisStrokeColor ¶

func (c Colors) AxisStrokeColor() drawing.Color

func (Colors) BackgroundColor ¶

func (c Colors) BackgroundColor() drawing.Color

func (Colors) BackgroundStrokeColor ¶

func (c Colors) BackgroundStrokeColor() drawing.Color

func (Colors) CanvasColor ¶

func (c Colors) CanvasColor() drawing.Color

func (Colors) CanvasStrokeColor ¶

func (c Colors) CanvasStrokeColor() drawing.Color

func (Colors) GetSeriesColor ¶

func (c Colors) GetSeriesColor(index int) drawing.Color

func (Colors) TextColor ¶

func (c Colors) TextColor() drawing.Color

type Table ¶ added in v2.18.0

type Table struct {
	Table *tablef64.Table
}

func (*Table) BoxPlot ¶ added in v2.18.0

func (tbl *Table) BoxPlot(values []float64) (*plotter.BoxPlot, error)

func (*Table) BoxPlotColNameWritePNGFile ¶ added in v2.18.0

func (tbl *Table) BoxPlotColNameWritePNGFile(filename, title, colName string) error

func (*Table) ScatterPlot ¶ added in v2.18.0

func (tbl *Table) ScatterPlot(title, xColName, yColName string, dotWidth float64) (chart.Chart, error)

func (*Table) ScatterPlotWritePNG ¶ added in v2.18.1

func (tbl *Table) ScatterPlotWritePNG(w io.Writer, title, xColName, yColName string, dotWidth float64) error

func (*Table) ScatterPlotWritePNGFile ¶ added in v2.18.0

func (tbl *Table) ScatterPlotWritePNGFile(filename, title, xColName, yColName string, dotWidth float64) error

type TimeFormatter ¶

type TimeFormatter struct {
	Layout string // time format string
}

TimeFormatter provides a struct that satisifies the `github.com/wcharczuk/go-chart.ValueFormatter` interface using a given time layout string.

func (*TimeFormatter) FormatTime ¶

func (tvf *TimeFormatter) FormatTime(v any) string

Source Files ¶

View all Source files

Directories ¶

Path	Synopsis
examples
bar
line
twoaxis
sts2wchart

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