[英]identifying hovered point with Flot?
Hopefully this questions isn't too confusing or long, I'm working with the Flot examples, specifically this one. 希望这个问题不会太混乱或太长,我正在研究Flot示例,尤其是这个示例。
I'm using flot to graph some data I've been gathering into a Scatter chart. 我正在使用flot绘制一些我一直在收集到散点图中的数据的图形。 I'm using the following function to do so... 我正在使用以下功能来做到这一点...
function genScatter(){
var no = getSelectedRepeat();
$.get("getPages.json",{rid: no},function(data){
var d1 = [];
$.each(data,function(i,obj){
d1.push([obj.queries,obj.count,{url: obj.url}]);
})
$.plot($("#scatter"), [ { label: "Pages",
data: d1,
lines:{show: false},
points:{show: true}}],{
xaxis:{min: 1},
grid:{ hoverable: true}
});
});
}
My code generates a Scatter chart with various points. 我的代码生成具有多个点的散点图。 When I hover over a point the following listener gets activated... 当我将鼠标悬停在某个点上时,以下监听器将被激活...
$("#scatter").bind("plothover", function (event, pos, item) {
$("#x").text(pos.x.toFixed(2));
$("#y").text(pos.y.toFixed(2));
if (item) {
if (previousPoint != item.dataIndex) {
previousPoint = item.dataIndex;
$("#tooltip").remove();
var x = item.datapoint[0].toFixed(2),
y = item.datapoint[1].toFixed(2);
/*this would be the line where I extract
the url and forward it to showToolTip.*/
showTooltip(item.pageX, item.pageY,
item.series.label + ": " + y);
}
}
else {
$("#tooltip").remove();
previousPoint = null;
}
});
where showTooltip
is defined is... 定义showTooltip
位置是...
function showTooltip(x, y, contents) {
$('<div id="tooltip">' + contents + '</div>').css( {
position: 'absolute',
display: 'none',
top: y + 5,
left: x + 5,
border: '1px solid #fdd',
padding: '2px',
'background-color': '#fee',
opacity: 0.80
}).appendTo("body").fadeIn(200);
}
Basically, when hovering over a point I'd like to render the value for url
added with the point to d1
but I haven't been able to because the item
object doesn't return url
inside item.datapoint
only the x,y value of the points are returned. 基本上,当我将鼠标悬停在某个点上时,我想渲染添加到d1
的点的url
的值,但是我无法这样做,因为item
对象不在item.datapoint
返回url
,仅返回x,y值的点数返回。 url
is included inside item
but under item.data
in an array with all of the other points in the graph. url
包含在item
但在item.data
中的item.data
下, item.data
中的所有其他点。
My question is, either identifying the point uniquely from the array listed in item.data
or forcing flot
to include url
inside item.datapoint
is there a way to get the url
to a corresponding point? 我的问题是,要么从item.data
列出的数组中唯一标识该点,要么迫使flot
将url
包含在item.datapoint
是否有办法将url
指向相应的点?
如果这样定义你的数据结构,那么你应该能够得到的URL与(例如你的plothover回调位置 ):
item.series.data[item.dataIndex][2].url
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