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@ -1,8 +1,8 @@
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Frequently asked questions
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Frequently asked questions
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--------------------------
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==========================
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Q: How much data can Flot cope with?
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Q: How much data can Flot cope with?
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A: Flot will happily draw everything you send to it so the answer
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A: Flot will happily draw everything you send to it so the answer
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depends on the browser. The excanvas emulation used for IE (built with
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depends on the browser. The excanvas emulation used for IE (built with
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VML) makes IE by far the slowest browser so be sure to test with that
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VML) makes IE by far the slowest browser so be sure to test with that
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@ -16,7 +16,7 @@ chart anyway. If you downsample server-side, you also save bandwidth.
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Q: Flot isn't working when I'm using JSON data as source!
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Q: Flot isn't working when I'm using JSON data as source!
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---------------------------------------------------------
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A: Actually, Flot loves JSON data, you just got the format wrong.
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A: Actually, Flot loves JSON data, you just got the format wrong.
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Double check that you're not inputting strings instead of numbers,
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Double check that you're not inputting strings instead of numbers,
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like [["0", "-2.13"], ["5", "4.3"]]. This is most common mistake, and
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like [["0", "-2.13"], ["5", "4.3"]]. This is most common mistake, and
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@ -25,7 +25,7 @@ conversion automatically.
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Q: Can I export the graph?
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Q: Can I export the graph?
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--------------------------
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A: You can grab the image rendered by the canvas element used by Flot
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A: You can grab the image rendered by the canvas element used by Flot
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as a PNG or JPEG (remember to set a background). Note that it won't
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as a PNG or JPEG (remember to set a background). Note that it won't
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include anything not drawn in the canvas (such as the legend). And it
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include anything not drawn in the canvas (such as the legend). And it
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@ -34,7 +34,7 @@ Flashcanvas.
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Q: The bars are all tiny in time mode?
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Q: The bars are all tiny in time mode?
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--------------------------------------
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A: It's not really possible to determine the bar width automatically.
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A: It's not really possible to determine the bar width automatically.
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So you have to set the width with the barWidth option which is NOT in
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So you have to set the width with the barWidth option which is NOT in
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pixels, but in the units of the x axis (or the y axis for horizontal
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pixels, but in the units of the x axis (or the y axis for horizontal
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@ -43,7 +43,7 @@ makes the bars 1 millisecond wide.
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Q: Can I use Flot with libraries like Mootools or Prototype?
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Q: Can I use Flot with libraries like Mootools or Prototype?
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------------------------------------------------------------
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A: Yes, Flot supports it out of the box and it's easy! Just use jQuery
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A: Yes, Flot supports it out of the box and it's easy! Just use jQuery
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instead of $, e.g. call jQuery.plot instead of $.plot and use
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instead of $, e.g. call jQuery.plot instead of $.plot and use
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jQuery(something) instead of $(something). As a convenience, you can
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jQuery(something) instead of $(something). As a convenience, you can
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@ -57,7 +57,7 @@ libraries") for details.
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Q: Flot doesn't work with [insert name of Javascript UI framework]!
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Q: Flot doesn't work with [insert name of Javascript UI framework]!
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-------------------------------------------------------------------
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A: Flot is using standard HTML to make charts. If this is not working,
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A: Flot is using standard HTML to make charts. If this is not working,
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it's probably because the framework you're using is doing something
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it's probably because the framework you're using is doing something
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weird with the DOM or with the CSS that is interfering with Flot.
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weird with the DOM or with the CSS that is interfering with Flot.
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Hongli Lai (Phusion)
15 years ago