此問題的解決方案如下。問題在於,設置概覽圖的選擇(overview.setSelection(ranges);
)正在觸發縮放方法,因爲它被綁定到概覽圖中的plotselected
事件。在zoom
方法結束時,繪製了主圖,該圖再次調用updateOverviewSelection
方法中的overview.setSelection(ranges);
一行。爲了防止這兩種方法/事件之間的乒乓,我添加了一個updatingOverviewSelection
標誌。
http://jsfiddle.net/apandit/nu2rr58h/12/
var datasets = [[
[0,0],[1,1],[2,2],[3,3],[4,4],[5,5],[6,6],[7,7],[8,8],[9,9]
],
[
[0,0],[-1,-1],[-2,-2],[-3,-3],[-4,-4],[-5,-5],[-6,-6],[-7,-7],[-8,-8],[-9,-9]
]];
var plot = $.plot("#plot",datasets,{
pan: {
interactive: true
},
zoom: {
interactive: true,
mode: "x"
}
});
var overview = $.plot("#overview",datasets,{
selection: {
mode: "xy"
}
});
var updatingOverviewSelection = false;
$("#plot").bind("plotpan plotzoom",updateOverviewSelection);
$("#overview").bind("plotselected", zoom);
function zoom(event,ranges) {
if(updatingOverviewSelection) {
updatingOverviewSelection = false;
}
else {
var options = plot.getOptions();
options.xaxes[0].min = ranges.xaxis.from;
options.xaxes[0].max = ranges.xaxis.to;
options.yaxes[0].min = ranges.yaxis.from;
options.yaxes[0].max = ranges.yaxis.to;
plot = $.plot("#plot",datasets,options);
}
};
// get the window x-axis and y-axis ranges for the main plot
// and set the selection in the overview plot to those ranges
function updateOverviewSelection(event) {
var options = plot.getOptions();
var ranges = {
xaxis: {
from: options.xaxes[0].min,
to: options.xaxes[0].max
},
yaxis: {
from: options.yaxes[0].min,
to: options.yaxes[0].max
}
};
updatingOverviewSelection = true;
overview.setSelection(ranges);
};
請提供[最小,完整的,並且可驗證示例](http://stackoverflow.com/help/mcve)。 – Raidri 2015-04-01 09:01:03