sunjavagroups / flot

Automatically exported from code.google.com/p/flot
MIT License
0 stars 0 forks source link

var axes = plot.getAxes();var dataset = plot.getData(); can not work in xaxis-time format #561

Closed GoogleCodeExporter closed 8 years ago

GoogleCodeExporter commented 8 years ago
<script type="text/javascript">
$(function(){

    function update(){
    $.ajax({
    type: "POST",
    url: "get-today-infor.php",
    success: function(msg){

    var options = {
        xaxis: { mode: "time",timeformat: "%H:%M" , tickLength: 5 },
        series: {  lines: { show: true } },
        crosshair: { mode: "x" },
        grid: { hoverable: true, autoHighlight: false },
        selection: { mode: "x" }
    };

    var updateLegendTimeout = null;
    var latestPosition = null;

    var plot_big = $.plot($("#today-p"), [{data:msg , label: "总功率= 0.00"}], options);
    plot_big.draw();    

    var plot_small = $.plot($("#for_tip"), [msg], {
        series: {
            lines: { show: true, lineWidth: 1 },
            shadowSize: 0
        },
        xaxis: { ticks: [], mode: "time",timeformat: "%H:%M" },
        yaxis: { ticks: [], min: 0, autoscaleMargin: 0.1 },
        selection: { mode: "x" }
    });
    plot_small.draw();

function updateLegend() {
        updateLegendTimeout = null;

        var pos = latestPosition;

        var axes = plot.getAxes();
        alert("nb"+axes.xaxis.max);
        if (pos.x < axes.xaxis.min || pos.x > axes.xaxis.max ||
            pos.y < axes.yaxis.min || pos.y > axes.yaxis.max)
            return;

        var i, j, dataset = plot.getData();

        for (i = 0; i < dataset.length; ++i) {
            var series = dataset[i];
            // find the nearest points, x-wise
            for (j = 0; j < series.data.length; ++j)
                if (series.data[j][0] > pos.x)
                    break;

            // now interpolate
            var y, p1 = series.data[j - 1], p2 = series.data[j];
            if (p1 == null)
                y = p2[1];
            else if (p2 == null)
                y = p1[1];
            else
                y = p1[1] + (p2[1] - p1[1]) * (pos.x - p1[0]) / (p2[0] - p1[0]);

            legends.eq(i).text(series.label.replace(/=.*/, "= " + y.toFixed(2)));
        }
    }   

  $("#today-p").bind("plotselected", function (event, ranges) {
        // do the zooming
        plot_big = $.plot($("#today-p"), [{data:msg , label: "总功率= 0.00"}],
                      $.extend(true, {}, options, {
                          xaxis: { min: ranges.xaxis.from, max: ranges.xaxis.to }
                      }));
        // don't fire event on the overview to prevent eternal loop
        for_tip.setSelection(ranges, true);
    });

  $("#today-p").bind("plothover",  function (event, pos, item) {
        latestPosition = pos;
        if (!updateLegendTimeout)
            updateLegendTimeout = setTimeout(updateLegend, 50);
    });

    $("#for_tip").bind("plotselected", function (event, ranges) {
        plot_big.setSelection(ranges);
    });

   },
   error: function(){
    new Dialog('wait for a moment thanks...',{time:5000},{id:'dialog'}).show();
    window.location.reload();
   },
   dataType: 'json'
 });
 setTimeout(update, 1000000);   
 }
 update();
}); 
</script>

Original issue reported on code.google.com by xmphoe...@gmail.com on 24 Jun 2011 at 5:38

GoogleCodeExporter commented 8 years ago

Original comment by olau%iol...@gtempaccount.com on 24 Jun 2011 at 9:09

GoogleCodeExporter commented 8 years ago

Original comment by dnsch...@gmail.com on 7 May 2012 at 11:29