public static SamplesResult NewMethod5()
{
var url = @"https://vega.github.io/vega-datasets/data/cars.json";
var selection = Vega.SingleSelection("pts").SetOn("mouseover");
var cond = Vega.Condition()
.AddFiled(Vega.PcField().SetAggregate("count").SetType(FieldType.Quantitative))
.AddSelection(selection);
var cm = Vega.SetData(url)
.SetEncoding(en =>
{
en.X = Vega.PcField().SetName("Origin:O");
en.Y = Vega.PcField().SetName("Cylinders:O");
en.Color = cond.ToColor(Color.Gray);
})
.SetSelection(selection);
var rect = cm.SetMark(Vega.Marks.Rect);
return(new SamplesResult
{
Desc = "鼠标经过，高亮颜色，其他地方灰色",
Html = rect.ToHtml()
});
}
private static void NewMethod5()
{
var url = @"https://vega.github.io/vega-datasets/data/cars.json";
var selection = Vega.SingleSelection("pts").SetOn("mouseover")
.SetNearest(true);
var cond = Vega.Condition()
.AddFiled(Vega.PcField().SetAggregate("count").SetType(FieldType.Quantitative))
.AddSelection(selection);
var cm = Vega.SetData(url)
.SetEncoding(en =>
{
en.X = Vega.PcField().SetName("Origin:O");
en.Y = Vega.PcField().SetName("Cylinders:O");
en.Color = cond.ToColor(Color.Gray);
})
.SetSelection(selection);
var rect = cm.SetMark(Vega.Marks.Rect);
rect.ToFile("res.html");
}
