Question

创建D3树。水平滚动条不适用于Firefox 37中树节点的拖动选择。在chrome水平滚动正在处理拖动选择。

<div class="row">
     <div class="tree-container" id="treeId"></div>
</div>

$('.tree-container').css('overflow', 'auto');

var nodeEnter = node.enter().append("g").call(dragListener).attr(
            "class", "node").attr("transform", function(d) {
        return "translate(" + source.y0 + "," + source.x0 + ")";
    }).on("mouseenter", nodeMouseEnter).on("mouseleave", nodeMouseLeave)
            .on('click', click).attr('id', function(d) {
                return d.nodeId;
            });

Answer 1

您可以使用scrollTo插件。查看demo

同时检查一下

Animated Scrolling with jQuery 1.2

Answer 2

HTML代码在这里：

 <div id="outerFrame">
    <div id="innerFrame">
        <svg width="600" height="600">
        </svg>
    </div>
</div>

CSS：

    #outerFrame{
        width: 300px;
        height: 300px;
        border: 1px solid red;
       overflow: auto;
}

 #innerFrame{
    width: 600px;
    height: 600px;
    background-color: lightgrey;
}

rect{
    fill: green;
}

JS代码：

var drag = d3.behavior.drag()
    .on("dragstart", dragstart)
    .on("drag", dragmove)
    .on("dragend", dragend);

function dragstart() {
  d3.select(this).style("border", "1px solid red");
}

function dragmove(d) {
    var svg = d3.select("svg").node(),
        $parent = $('#outerFrame'),
        w = $parent.width(), h = $parent.height(),
        sL = $parent.scrollLeft(), sT = $parent.scrollTop();

    var coordinates = d3.mouse(svg),
        x = coordinates[0],
        y = coordinates[1];

    if (x > w + sL) {
        $parent.scrollLeft(x - w);  
    } else if (x < sL) {
        $parent.scrollLeft(x);
    }

    if (y > h + sT) {
        $parent.scrollTop(y - h);
    } else if (y < sT) {
        $parent.scrollTop(y);
    }

    d3.select(this).attr({
        x: x - 50,
        y: y - 25
    })
}

function dragend() {
  d3.select(this).style("border", null);
}

d3.select("svg")
    .append("rect")
    .attr({x: 100, y: 100, width: 100, height: 50})
    .call(drag);

自动滚动mousedrag

2 个答案: