Commit 04254b92 authored by David Schnur's avatar David Schnur

Cleanup and markup standardization.

parent a4de2cab
Frequently asked questions ## Frequently asked questions ##
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Q: How much data can Flot cope with? #### How much data can Flot cope with? ####
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A: Flot will happily draw everything you send to it so the answer Flot will happily draw everything you send to it so the answer
depends on the browser. The excanvas emulation used for IE (built with depends on the browser. The excanvas emulation used for IE (built with
VML) makes IE by far the slowest browser so be sure to test with that VML) makes IE by far the slowest browser so be sure to test with that
if IE users are in your target group (for large plots in IE, you can if IE users are in your target group (for large plots in IE, you can
...@@ -15,36 +14,36 @@ downsampling/aggregation as this is near the resolution limit of the ...@@ -15,36 +14,36 @@ downsampling/aggregation as this is near the resolution limit of the
chart anyway. If you downsample server-side, you also save bandwidth. chart anyway. If you downsample server-side, you also save bandwidth.
Q: Flot isn't working when I'm using JSON data as source! #### Flot isn't working when I'm using JSON data as source! ####
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A: Actually, Flot loves JSON data, you just got the format wrong. Actually, Flot loves JSON data, you just got the format wrong.
Double check that you're not inputting strings instead of numbers, Double check that you're not inputting strings instead of numbers,
like [["0", "-2.13"], ["5", "4.3"]]. This is most common mistake, and like [["0", "-2.13"], ["5", "4.3"]]. This is most common mistake, and
the error might not show up immediately because Javascript can do some the error might not show up immediately because Javascript can do some
conversion automatically. conversion automatically.
Q: Can I export the graph? #### Can I export the graph? ####
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A: You can grab the image rendered by the canvas element used by Flot You can grab the image rendered by the canvas element used by Flot
as a PNG or JPEG (remember to set a background). Note that it won't as a PNG or JPEG (remember to set a background). Note that it won't
include anything not drawn in the canvas (such as the legend). And it include anything not drawn in the canvas (such as the legend). And it
doesn't work with excanvas which uses VML, but you could try doesn't work with excanvas which uses VML, but you could try
Flashcanvas. Flashcanvas.
Q: The bars are all tiny in time mode? #### The bars are all tiny in time mode? ####
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A: It's not really possible to determine the bar width automatically. It's not really possible to determine the bar width automatically.
So you have to set the width with the barWidth option which is NOT in So you have to set the width with the barWidth option which is NOT in
pixels, but in the units of the x axis (or the y axis for horizontal pixels, but in the units of the x axis (or the y axis for horizontal
bars). For time mode that's milliseconds so the default value of 1 bars). For time mode that's milliseconds so the default value of 1
makes the bars 1 millisecond wide. makes the bars 1 millisecond wide.
Q: Can I use Flot with libraries like Mootools or Prototype? #### Can I use Flot with libraries like Mootools or Prototype? ####
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A: Yes, Flot supports it out of the box and it's easy! Just use jQuery Yes, Flot supports it out of the box and it's easy! Just use jQuery
instead of $, e.g. call jQuery.plot instead of $.plot and use instead of $, e.g. call jQuery.plot instead of $.plot and use
jQuery(something) instead of $(something). As a convenience, you can jQuery(something) instead of $(something). As a convenience, you can
put in a DOM element for the graph placeholder where the examples and put in a DOM element for the graph placeholder where the examples and
...@@ -56,9 +55,9 @@ libraries, see the documentation in jQuery ("Using jQuery with other ...@@ -56,9 +55,9 @@ libraries, see the documentation in jQuery ("Using jQuery with other
libraries") for details. libraries") for details.
Q: Flot doesn't work with [insert name of Javascript UI framework]! #### Flot doesn't work with [insert name of Javascript UI framework]! ####
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A: Flot is using standard HTML to make charts. If this is not working, Flot is using standard HTML to make charts. If this is not working,
it's probably because the framework you're using is doing something it's probably because the framework you're using is doing something
weird with the DOM or with the CSS that is interfering with Flot. weird with the DOM or with the CSS that is interfering with Flot.
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