這將創建雙槓。基於json選擇rect並在選定的父rect內添加rect
現在,將通過此JSON
var bar_data = [
{ name: "A", frequency: .08167 },
{ name: "B", frequency: .01492 },
];
具有基於bar_data.name選擇上面創建rects - 意味着只有具有數據 =甲乙RECT將得到選擇,並且然後追加矩形裏面
bars_section.selectAll("rect").data(bar_data, function(d){
return d.name
}).enter().append("rect").text(function(d){
return d.name;
});
從第一條創作編碼 - O/p是這樣=
<svg height="800" width="800">
<rect x="10" width="25" height="100" stroke="black" stroke-width="3" data-attr="A">A</rect>
<rect x="35" width="25" height="100" stroke="black" stroke-width="3" data-attr="B">B</rect>
<rect x="60" width="25" height="100" stroke="black" stroke-width="3" data-attr="C">C</rect>
<rect x="85" width="25" height="100" stroke="black" stroke-width="3" data-attr="D">D</rect>
<rect x="110" width="25" height="100" stroke="black" stroke-width="3" data-attr="E">E</rect>
<rect x="135" width="25" height="100" stroke="black" stroke-width="3" data-attr="F">F</rect>
<rect x="160" width="25" height="100" stroke="black" stroke-width="3" data-attr="G">G</rect>
<rect x="185" width="25" height="100" stroke="black" stroke-width="3" data-attr="H">H</rect>
<rect x="210" width="25" height="100" stroke="black" stroke-width="3" data-attr="I">I</rect>
<rect x="235" width="25" height="100" stroke="black" stroke-width="3" data-attr="J">J</rect>
</svg>
我需要這個O/P: -
<svg height="800" width="800">
<rect x="10" width="25" height="100" stroke="black" stroke-width="3" data-attr="A">A
<rect>A<rect>
</rect>
<rect x="35" width="25" height="100" stroke="black" stroke-width="3" data-attr="B">B
<rect>B</rect>
</rect>
<rect x="60" width="25" height="100" stroke="black" stroke-width="3" data-attr="C">C</rect>
<rect x="85" width="25" height="100" stroke="black" stroke-width="3" data-attr="D">D</rect>
<rect x="110" width="25" height="100" stroke="black" stroke-width="3" data-attr="E">E</rect>
<rect x="135" width="25" height="100" stroke="black" stroke-width="3" data-attr="F">F</rect>
<rect x="160" width="25" height="100" stroke="black" stroke-width="3" data-attr="G">G</rect>
<rect x="185" width="25" height="100" stroke="black" stroke-width="3" data-attr="H">H</rect>
<rect x="210" width="25" height="100" stroke="black" stroke-width="3" data-attr="I">I</rect>
<rect x="235" width="25" height="100" stroke="black" stroke-width="3" data-attr="J">J</rect>
</svg>
你可以使用[''d3.filter'](https://github.com/mbostock/d3/wiki/Selections#filter)來限制你的選擇只有A和B''s。但是,嵌套''無論如何都是無效的,所以我不確定你想要完成什麼。 –
mdml
實際上,我已經創建了rects,其中我想創建另一個矩形,其行爲像綠色的垂直進度條,取決於高度將會不同的頻率 –