public static SamplesResult NewMethod6()
{
var url = @"https://vega.github.io/vega-datasets/data/cars.json";
var selection = Vega.IntervalSelection("pts")
.SetBind(IntervalSelectionBind.Scales);
var cond = Vega.Condition()
.AddFiled(Vega.PcField("Origin:N"))
.AddSelection(selection);
var cm = Vega.SetData(url)
.SetMark(Vega.Marks.Point)
.SetEncoding(en =>
{
en.Y = Vega.PcField().SetName("Horsepower:Q");
en.Color = cond.ToColor(Color.Gray);
})
.SetSelection(selection);
var left = cm.SetEncoding(en => en.X = Vega.PcField("Acceleration:Q"));
var right = cm.SetEncoding(en => en.X = Vega.PcField("Miles_per_Gallon:Q"));
return(new SamplesResult
{
Desc = @"2个表相同的y轴，不同的x轴。
能用鼠标点击拖动移动图表显示范围，用滚轮放大或缩小范围。
并且2个表是同步更新",
Html = (left | right).ToHtml()
});
}
public static SamplesResult NewMethod4()
{
var url = @"https://vega.github.io/vega-datasets/data/stocks.csv";
var cond = Vega.Condition()
.AddTest(d => d.Number("price") > 400)
.AddValue(Color.Red);
var cm = Vega.SetData(url)
.SetEncoding(en =>
{
en.X = Vega.PcField().SetName("date:T");
en.Y = Vega.PcField().SetName("price:Q");
en.Color = cond.ToColor(Color.Blue);
})
.SetFilter(d => d.String("symbol") == "GOOG")
;
var line = cm.SetMark(Vega.Marks.Line);
var point = cm.SetMark(Vega.Marks.Point);
return(new SamplesResult
{
Desc = "设置条件，价格高于400的，点图中的点会设置为红色",
Html = (line + point).ToHtml()
});
}
public static SamplesResult NewMethod7()
{
var url = @"https://vega.github.io/vega-datasets/data/cars.json";
//设置范围选择
var selection = Vega.IntervalSelection("pts");
//设置条件
var cond = Vega.Condition()
.AddFiled(Vega.PcField("Origin:N"))
.AddSelection(selection);
var cm = Vega.SetData(url) //数据
.SetMark(Vega.Marks.Point) // 图表形状
.SetEncoding(en => //数据对应
{
en.Y = Vega.PcField("Horsepower:Q");
en.Color = cond.ToColor(Color.Gray);
})
.SetSelection(selection);
var left = cm.SetEncoding(en => en.X = Vega.PcField("Acceleration:Q"));
var right = cm.SetEncoding(en => en.X = Vega.PcField("Miles_per_Gallon:Q"));
//左右2张图
return(new SamplesResult
{
Desc = @"范围选择，鼠标左键点击可画出范围框，然后点击框能拖动。
框范围内正常颜色，其他为灰色",
Html = (left | right).ToHtml()
});
}
private static void NewMethod7()
{
var url = @"https://vega.github.io/vega-datasets/data/cars.json";
//设置范围选择
var selection = Vega.IntervalSelection("pts");
//设置条件
var cond = Vega.Condition()
.AddFiled(Vega.PcField("Origin:N"))
.AddSelection(selection);
var cm = Vega.SetData(url) //数据
.SetMark(Vega.Marks.Point) // 图表形状
.SetEncoding(en => //数据对应
{
en.Y = Vega.PcField("Horsepower:Q");
en.Color = cond.ToColor(Color.Gray);
})
.SetSelection(selection);
var left = cm.SetEncoding(en => en.X = Vega.PcField("Acceleration:Q"));
var right = cm.SetEncoding(en => en.X = Vega.PcField("Miles_per_Gallon:Q"));
//左右2张图
(left | right).ToFile("res.html");
}
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");
}
//[Fact]
public void Test_ToJsonView()
{
var data = new RecordArrayData <MyClass>(new[]
{
new MyClass {
Name = "a", Value = 12
},
new MyClass {
Name = "b", Value = 20
},
new MyClass {
Name = "c", Value = 25
},
});
var mark = new Bar();
var ec = new Encoding
{
X = Vega.PcField("Name"),
Y = Vega.PcField("Value:Q")
};
var eg = new SingleViewSpecification
{
Data = data,
Encoding = ec,
Mark = mark
};
var act = eg.ToJsonView();
var exp = File.ReadAllText(@"Engine\Test_ToJsonView.txt", System.Text.Encoding.UTF8);
Assert.Equal(exp, act);
}
private static void test1()
{
var url = @"https://vega.github.io/vega-datasets/data/movies.json";
var selection = Vega.MultiSelection("click")
//.SetOn("mousemove{100}")
.SetEncodings("x");
var x = Vega.PcField("IMDB_Rating:Q").SetBin(true);
var y = Vega.PcField("Rotten_Tomatoes_Rating:Q").SetBin(true);
var rect = Vega.SetData(url)
.SetMark(Vega.Marks.Rect)
.SetEncoding(en =>
{
en.X = x;
en.Y = y;
en.Color = Vega.McField()
.SetAggregate("count")
.SetScale("greenblue")
.SetLegend("总数");
});
var circ = Vega.SetData(url)
.SetMark(Vega.Marks.Point)
.SetEncoding(en =>
{
en.X = x;
en.Y = y;
en.Color = Vega.McField().SetColor("grey");
en.Size = Vega.McField()
.SetAggregate("count")
.SetLegend("选中的总数");
})
.SetFilter(selection);
var bar = Vega.SetData(url)
.SetMark(Vega.Marks.Bar)
.SetEncoding(en =>
{
en.X = Vega.PcField("Major_Genre:N");
en.Y = Vega.PcField().SetAggregate("count");
en.Color = Vega.Condition().AddSelection(selection).AddValue(Color.SteelBlue)
.ToColor(Color.Gray);
})
.SetSelection(selection);
((rect + circ) | bar)
.SetResolveLegend(g =>
{
g.Color = ResolveValue.Independent;
g.Size = ResolveValue.Independent;
})
.ToFile("res.html");
}
private static void NewMethod2()
{
var url = @"https://vega.github.io/vega-datasets/data/movies.json";
Vega.SetData(url)
.SetMark(Vega.Marks.Bar)
.SetEncoding(en =>
{
en.X = Vega.PcField("IMDB_Rating:Q").SetBin(true);
en.Y = Vega.PcField().SetAggregate("count");
})
.ToFile("res.html");
}
/// <summary>
/// https://vega.github.io/vega-lite/docs/sort.html#sort-by-encoding
/// </summary>
private static void NewMethod8()
{
var url = @"https://vega.github.io/vega-datasets/data/population.json";
var cm = Vega.SetData(url)
.SetMark(Vega.Marks.Bar)
.SetEncoding(en =>
{
en.Y = Vega.PcField().SetName("age:O").SetSort("-x");
en.X = Vega.PcField().SetName("people:Q")
.SetAggregate("sum");
})
.SetFilter(d => d.Number("year") == 2000);
cm.ToFile("res.html");
}
public static SamplesResult NewMethod2()
{
var url = @"https://vega.github.io/vega-datasets/data/movies.json";
var res = Vega.SetData(url)
.SetMark(Vega.Marks.Bar)
.SetEncoding(en =>
{
en.X = Vega.PcField("IMDB_Rating:Q").SetBin(true);
en.Y = Vega.PcField().SetAggregate("count");
})
.ToHtml();
return(new SamplesResult
{
Desc = "柱状图，y轴直接指定聚合 count，按x轴统计个数",
Html = res
});
}
/// <summary>
/// https://vega.github.io/vega-lite/docs/sort.html#sort-by-encoding
/// </summary>
public static SamplesResult NewMethod8()
{
var url = @"https://vega.github.io/vega-datasets/data/population.json";
var cm = Vega.SetData(url)
.SetMark(Vega.Marks.Bar)
.SetEncoding(en =>
{
en.Y = Vega.PcField().SetName("age:O").SetSort("-x");
en.X = Vega.PcField().SetName("people:Q")
.SetAggregate("sum");
})
.SetFilter(d => d.Number("year") == 2000);
return(new SamplesResult
{
Desc = "Y轴按x轴值倒序排序",
Html = cm.ToHtml()
});
}
private static void NewMethod3()
{
var url = @"https://vega.github.io/vega-datasets/data/stocks.csv";
var cm = Vega.SetData(url)
.SetEncoding(en =>
{
en.X = Vega.PcField("date:T");
en.Y = Vega.PcField("price:Q");
en.Color = Vega.McField("symbol:N");
})
.SetFilter(d => d.String("symbol") == "GOOG")
//.SetFilter("datum.symbol == 'GOOG'")
;
var line = cm.SetMark(Vega.Marks.Line);
var point = cm.SetMark(Vega.Marks.Point);
(line + point).ToFile("res.html");
}
public static SamplesResult NewMethod3()
{
var url = @"https://vega.github.io/vega-datasets/data/stocks.csv";
var cm = Vega.SetData(url)
.SetEncoding(en =>
{
en.X = Vega.PcField("date:T");
en.Y = Vega.PcField("price:Q");
en.Color = Vega.McField("symbol:N");
})
.SetFilter(d => d.String("symbol") == "GOOG")
//.SetFilter("datum.symbol == 'GOOG'")
;
var line = cm.SetMark(Vega.Marks.Line);
var point = cm.SetMark(Vega.Marks.Point);
return(new SamplesResult
{
Desc = "点图 + 线图 叠加",
Html = (line + point).ToHtml()
});
}
private static void NewMethod4()
{
var url = @"https://vega.github.io/vega-datasets/data/stocks.csv";
var cond = Vega.Condition()
.AddTest(d => d.Number("price") > 400)
.AddValue(Color.Red);
var cm = Vega.SetData(url)
.SetEncoding(en =>
{
en.X = Vega.PcField().SetName("date:T");
en.Y = Vega.PcField().SetName("price:Q");
en.Color = cond.ToColor(Color.Blue);
})
.SetFilter(d => d.String("symbol") == "GOOG")
;
var line = cm.SetMark(Vega.Marks.Line);
var point = cm.SetMark(Vega.Marks.Point);
(line + point).ToFile("res.html");
}
