add: effect scatter series (#393)

charts/series.go

@@ -350,6 +350,19 @@ func WithScatterChartOpts(opt opts.ScatterChart) SeriesOpts {
 	}
 }
 
+// WithEffectScatterChartOpts sets the ScatterChart option.
+func WithEffectScatterChartOpts(opt opts.EffectScatterChart) SeriesOpts {
+	return func(s *SingleSeries) {
+		s.ColorBy = opt.ColorBy
+		s.CoordSystem = opt.CoordSystem
+		s.XAxisIndex = opt.XAxisIndex
+		s.YAxisIndex = opt.YAxisIndex
+		s.Symbol = opt.Symbol
+		s.SymbolSize = opt.SymbolSize
+		s.SymbolKeepAspect = opt.SymbolKeepAspect
+	}
+}
+
 // WithLiquidChartOpts sets the LiquidChart option.
 func WithLiquidChartOpts(opt opts.LiquidChart) SeriesOpts {
 	return func(s *SingleSeries) {

opts/series_effect_scatter.go

@@ -0,0 +1,37 @@
+package opts
+
+import "github.com/go-echarts/go-echarts/v2/types"
+
+// EffectScatterChart is the option set for a effectScatter chart.
+// https://echarts.apache.org/en/option.html#series-effectScatter
+type EffectScatterChart struct {
+	// ColorBy The policy to take color from option.color. Valid values:
+	// 'series': assigns the colors in the palette by series, so that all data in the same series are in the same color;
+	// 'data': assigns colors in the palette according to data items, with each data item using a different color.
+	ColorBy string
+
+	// CoordinateSystem The coordinate used in the series, whose options are:
+	//'cartesian2d' Use a two-dimensional rectangular coordinate (also known as Cartesian coordinate), with xAxisIndex and
+	//  yAxisIndex to assign the corresponding axis component.
+	//
+	// 'polar' Use polar coordinates, with polarIndex to assign the corresponding polar coordinate component.
+	CoordSystem string
+
+	// Index of x axis to combine with, which is useful for multiple x axes in one chart.
+	XAxisIndex int
+
+	// Index of x axis to combine with, which is useful for multiple y axes in one chart.
+	YAxisIndex int
+
+	// Icon types provided by ECharts includes
+	//  'circle', 'rect', 'roundRect', 'triangle', 'diamond', 'pin', 'arrow', 'none'
+	// Full documentation: https://echarts.apache.org/en/option.html#series-line.symbol
+	Symbol string
+
+	// symbol size. It can be set to single numbers like 10, or use an array to represent width and height. For example, [20, 10] means symbol width is 20, and height is10.
+	// Full documentation: https://echarts.apache.org/en/option.html#series-line.symbolSize
+	SymbolSize interface{}
+
+	// SymbolKeepAspect is whether to keep aspect for symbols in the form of path://.
+	SymbolKeepAspect types.Bool
+}