FM / flot

/home/techb158/immovalet.ca/bower_components/flot/

/home/techb158/immovalet.ca/bower_components/flot

Name	Size	Mode	Actions
examples/	-	0777	rm
.bower.json	449	0666	edit dl rm
.gitignore	43	0666	edit dl rm
.travis.yml	38	0666	edit dl rm
API.md	53572	0666	edit dl rm
component.json	114	0666	edit dl rm
CONTRIBUTING.md	3242	0666	edit dl rm
excanvas.js	43371	0666	edit dl rm
excanvas.min.js	19314	0666	edit dl rm
FAQ.md	3237	0666	edit dl rm
flot.jquery.json	836	0666	edit dl rm
jquery.colorhelpers.js	6331	0666	edit dl rm
jquery.flot.canvas.js	9944	0666	edit dl rm
jquery.flot.categories.js	6223	0666	edit dl rm
jquery.flot.crosshair.js	5601	0666	edit dl rm
jquery.flot.errorbars.js	12967	0666	edit dl rm
jquery.flot.fillbetween.js	5483	0666	edit dl rm
jquery.flot.image.js	7601	0666	edit dl rm
jquery.flot.js	124764	0666	edit dl rm
jquery.flot.navigate.js	14536	0666	edit dl rm
jquery.flot.pie.js	24451	0666	edit dl rm
jquery.flot.resize.js	3195	0666	edit dl rm
jquery.flot.selection.js	13501	0666	edit dl rm
jquery.flot.stack.js	7278	0666	edit dl rm
jquery.flot.symbol.js	2576	0666	edit dl rm
jquery.flot.threshold.js	4622	0666	edit dl rm
jquery.flot.time.js	12160	0666	edit dl rm
jquery.js	275529	0666	edit dl rm
LICENSE.txt	1091	0666	edit dl rm
Makefile	297	0666	edit dl rm
NEWS.md	38339	0666	edit dl rm
package.json	154	0666	edit dl rm
PLUGINS.md	4340	0666	edit dl rm
README.md	3782	0666	edit dl rm

Edit: /home/techb158/immovalet.ca/bower_components/flot/jquery.flot.errorbars.js (12967B)

/* Flot plugin for plotting error bars.

Error bars are used to show standard deviation and other statistical
properties in a plot.

* Created by Rui Pereira  -  rui (dot) pereira (at) gmail (dot) com

This plugin allows you to plot error-bars over points. Set "errorbars" inside
the points series to the axis name over which there will be error values in
your data array (*even* if you do not intend to plot them later, by setting
"show: null" on xerr/yerr).

The plugin supports these options:

series: {
		points: {
			errorbars: "x" or "y" or "xy",
			xerr: {
				show: null/false or true,
				asymmetric: null/false or true,
				upperCap: null or "-" or function,
				lowerCap: null or "-" or function,
				color: null or color,
				radius: null or number
			},
			yerr: { same options as xerr }
		}
	}

Each data point array is expected to be of the type:

"x"  [ x, y, xerr ]
	"y"  [ x, y, yerr ]
	"xy" [ x, y, xerr, yerr ]

Where xerr becomes xerr_lower,xerr_upper for the asymmetric error case, and
equivalently for yerr. Eg., a datapoint for the "xy" case with symmetric
error-bars on X and asymmetric on Y would be:

[ x, y, xerr, yerr_lower, yerr_upper ]

By default no end caps are drawn. Setting upperCap and/or lowerCap to "-" will
draw a small cap perpendicular to the error bar. They can also be set to a
user-defined drawing function, with (ctx, x, y, radius) as parameters, as eg.

function drawSemiCircle( ctx, x, y, radius ) {
		ctx.beginPath();
		ctx.arc( x, y, radius, 0, Math.PI, false );
		ctx.moveTo( x - radius, y );
		ctx.lineTo( x + radius, y );
		ctx.stroke();
	}

Color and radius both default to the same ones of the points series if not
set. The independent radius parameter on xerr/yerr is useful for the case when
we may want to add error-bars to a line, without showing the interconnecting
points (with radius: 0), and still showing end caps on the error-bars.
shadowSize and lineWidth are derived as well from the points series.

(function ($) {
    var options = {
        series: {
            points: {
                errorbars: null, //should be 'x', 'y' or 'xy'
                xerr: { err: 'x', show: null, asymmetric: null, upperCap: null, lowerCap: null, color: null, radius: null},
                yerr: { err: 'y', show: null, asymmetric: null, upperCap: null, lowerCap: null, color: null, radius: null}
            }
        }
    };

function processRawData(plot, series, data, datapoints){
        if (!series.points.errorbars)
            return;

// x,y values
        var format = [
            { x: true, number: true, required: true },
            { y: true, number: true, required: true }
        ];

function parseErrors(series, i){

var points = series.datapoints.points;

// read errors from points array
        var exl = null,
                exu = null,
                eyl = null,
                eyu = null;
        var xerr = series.points.xerr,
                yerr = series.points.yerr;

// symmetric errors?
        if (exu == null) exu = exl;
        if (eyu == null) eyu = eyl;

var errRanges = [exl, exu, eyl, eyu];
        // nullify if not showing
        if (!xerr.show){
            errRanges[0] = null;
            errRanges[1] = null;
        }
        if (!yerr.show){
            errRanges[2] = null;
            errRanges[3] = null;
        }
        return errRanges;
    }

function drawSeriesErrors(plot, ctx, s){

var points = s.datapoints.points,
                ps = s.datapoints.pointsize,
                ax = [s.xaxis, s.yaxis],
                radius = s.points.radius,
                err = [s.points.xerr, s.points.yerr];

//sanity check, in case some inverted axis hack is applied to flot
        var invertX = false;
        if (ax[0].p2c(ax[0].max) < ax[0].p2c(ax[0].min)) {
            invertX = true;
            var tmp = err[0].lowerCap;
            err[0].lowerCap = err[0].upperCap;
            err[0].upperCap = tmp;
        }

var invertY = false;
        if (ax[1].p2c(ax[1].min) < ax[1].p2c(ax[1].max)) {
            invertY = true;
            var tmp = err[1].lowerCap;
            err[1].lowerCap = err[1].upperCap;
            err[1].upperCap = tmp;
        }

for (var i = 0; i < s.datapoints.points.length; i += ps) {

//parse
            var errRanges = parseErrors(s, i);

//cycle xerr & yerr
            for (var e = 0; e < err.length; e++){

var minmax = [ax[e].min, ax[e].max];

//draw this error?
                if (errRanges[e * err.length]){

//data coordinates
                    var x = points[i],
                        y = points[i + 1];

//errorbar ranges
                    var upper = [x, y][e] + errRanges[e * err.length + 1],
                        lower = [x, y][e] - errRanges[e * err.length];

//points outside of the canvas
                    if (err[e].err == 'x')
                        if (y > ax[1].max || y < ax[1].min || upper < ax[0].min || lower > ax[0].max)
                            continue;
                    if (err[e].err == 'y')
                        if (x > ax[0].max || x < ax[0].min || upper < ax[1].min || lower > ax[1].max)
                            continue;

// prevent errorbars getting out of the canvas
                    var drawUpper = true,
                        drawLower = true;

if (upper > minmax[1]) {
                        drawUpper = false;
                        upper = minmax[1];
                    }
                    if (lower < minmax[0]) {
                        drawLower = false;
                        lower = minmax[0];
                    }

//sanity check, in case some inverted axis hack is applied to flot
                    if ((err[e].err == 'x' && invertX) || (err[e].err == 'y' && invertY)) {
                        //swap coordinates
                        var tmp = lower;
                        lower = upper;
                        upper = tmp;
                        tmp = drawLower;
                        drawLower = drawUpper;
                        drawUpper = tmp;
                        tmp = minmax[0];
                        minmax[0] = minmax[1];
                        minmax[1] = tmp;
                    }

// convert to pixels
                    x = ax[0].p2c(x),
                        y = ax[1].p2c(y),
                        upper = ax[e].p2c(upper);
                    lower = ax[e].p2c(lower);
                    minmax[0] = ax[e].p2c(minmax[0]);
                    minmax[1] = ax[e].p2c(minmax[1]);

//same style as points by default
                    var lw = err[e].lineWidth ? err[e].lineWidth : s.points.lineWidth,
                        sw = s.points.shadowSize != null ? s.points.shadowSize : s.shadowSize;

//shadow as for points
                    if (lw > 0 && sw > 0) {
                        var w = sw / 2;
                        ctx.lineWidth = w;
                        ctx.strokeStyle = "rgba(0,0,0,0.1)";
                        drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, w + w/2, minmax);

ctx.strokeStyle = "rgba(0,0,0,0.2)";
                        drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, w/2, minmax);
                    }

ctx.strokeStyle = err[e].color? err[e].color: s.color;
                    ctx.lineWidth = lw;
                    //draw it
                    drawError(ctx, err[e], x, y, upper, lower, drawUpper, drawLower, radius, 0, minmax);
                }
            }
        }
    }

function drawError(ctx,err,x,y,upper,lower,drawUpper,drawLower,radius,offset,minmax){

//shadow offset
        y += offset;
        upper += offset;
        lower += offset;

// error bar - avoid plotting over circles
        if (err.err == 'x'){
            if (upper > x + radius) drawPath(ctx, [[upper,y],[Math.max(x + radius,minmax[0]),y]]);
            else drawUpper = false;
            if (lower < x - radius) drawPath(ctx, [[Math.min(x - radius,minmax[1]),y],[lower,y]] );
            else drawLower = false;
        }
        else {
            if (upper < y - radius) drawPath(ctx, [[x,upper],[x,Math.min(y - radius,minmax[0])]] );
            else drawUpper = false;
            if (lower > y + radius) drawPath(ctx, [[x,Math.max(y + radius,minmax[1])],[x,lower]] );
            else drawLower = false;
        }

//internal radius value in errorbar, allows to plot radius 0 points and still keep proper sized caps
        //this is a way to get errorbars on lines without visible connecting dots
        radius = err.radius != null? err.radius: radius;

// upper cap
        if (drawUpper) {
            if (err.upperCap == '-'){
                if (err.err=='x') drawPath(ctx, [[upper,y - radius],[upper,y + radius]] );
                else drawPath(ctx, [[x - radius,upper],[x + radius,upper]] );
            } else if ($.isFunction(err.upperCap)){
                if (err.err=='x') err.upperCap(ctx, upper, y, radius);
                else err.upperCap(ctx, x, upper, radius);
            }
        }
        // lower cap
        if (drawLower) {
            if (err.lowerCap == '-'){
                if (err.err=='x') drawPath(ctx, [[lower,y - radius],[lower,y + radius]] );
                else drawPath(ctx, [[x - radius,lower],[x + radius,lower]] );
            } else if ($.isFunction(err.lowerCap)){
                if (err.err=='x') err.lowerCap(ctx, lower, y, radius);
                else err.lowerCap(ctx, x, lower, radius);
            }
        }
    }

function drawPath(ctx, pts){
        ctx.beginPath();
        ctx.moveTo(pts[0][0], pts[0][1]);
        for (var p=1; p < pts.length; p++)
            ctx.lineTo(pts[p][0], pts[p][1]);
        ctx.stroke();
    }

function draw(plot, ctx){
        var plotOffset = plot.getPlotOffset();

ctx.save();
        ctx.translate(plotOffset.left, plotOffset.top);
        $.each(plot.getData(), function (i, s) {
            if (s.points.errorbars && (s.points.xerr.show || s.points.yerr.show))
                drawSeriesErrors(plot, ctx, s);
        });
        ctx.restore();
    }

function init(plot) {
        plot.hooks.processRawData.push(processRawData);
        plot.hooks.draw.push(draw);
    }

$.plot.plugins.push({
                init: init,
                options: options,
                name: 'errorbars',
                version: '1.0'
            });
})(jQuery);

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