JQPlot ( view plot image ) breaks in Firefox

问题

For some reason jqplot can't render images in firefox.

It just crashes on line 182 of the image script with no plausible problem I can see.

When I run the exact same function in chrome it works perfectly.

Never had this problem before.

I recently switched to OSX, think it might have something to do with firefox on this os.

If anyone knows of a solution please let me know.

I will post an update if I figure it out myself.

回答1:

The issue is likely with this piece of code in writeWrappedText() function:

for (var i=0; i<wl; i++) {
    w += words[i];
    if (context.measureText(w).width > tagwidth) {
        breaks.push(i);
        w = '';
        i--;
    }  
}

Commenting out i-- solves the issue for me.

回答2:

This issue was discovered and fixed last year by the jqplot team in this bug report. The fix they recommend is to change:

if (context.measureText(w).width > tagwidth) {

if (context.measureText(w).width > tagwidth && w.length > words[i].length) {

Looks like the fix should be in recent versions of jqplot. If you run into this, updating your library may help.

回答3:

I render images from graphs without any problem...

    var imgData = $('#chart').jqplotToImageStr({});

Then I send to a php page the imgData var (that contains the base64 image) to let it be downloaded directly. I you want just to show that image, you just have to add that var to the src attr of a image tag (or opening it as a popup passing the var as the href attr of the window)

    window.open(imgData,"_blank","scrollbars=0");

来源：https://stackoverflow.com/questions/20836075/jqplot-view-plot-image-breaks-in-firefox

标签

javascript

firefox

jqplot