pointsTop is null about curvedlines HOT 6 CLOSED

hm no unfortunately no ideas. Can you make a small toy example that reproduces the error?

from curvedlines.

Got one! It seems to be a problem of the numbers. If I divide everything by 1000 it seems to work- which is unfortunately not an option :(

var options = {
    series: {
        curvedLines: {
            active: true,
        },
    },
};

var series = [{
    data: [[1364699400000, -0], [1364707500000, 88.889], [1364715600000, 1339.259], [1364723700000, 1955.556], [1364731800000, 2400], [1364739900000, 1179.259], [1364748000000, 80], [1364756400000, -0]],
    color: "blue",
    lines: {
        show: true,
        steps: false,
        lineWidth: 1,
        fill: true
    },
    curvedLines: {
        apply: true,
        fit: true,
        fitPointDist: 0.000001,
    }
}];

$.plot($("#flot"), series, options);

from curvedlines.

I may have found the problem, the "virtual" data points are placed fitPointDist away from their origins.
This is at the moment an absolut value and if your X values are too big adding 0.00001 will have no effect.
(1364699400000 + 0.000001 == 1364699400000)

I should think about a better solution for this maybe adding a warning or relative fitPointDist s however for the moment you can simply adjust your fitPointDist to a higher value.

            curvedLines : {
                apply : true,
                fit : true,
                fitPointDist: 100
            }

Regards Michael

from curvedlines.

Thanks for tracking down this one. My last question is what the fitPointDist should really depend on- is it x- or y-values?

from curvedlines.

fitPointDist basically defines how far away in x direction the two additional points (that force the curves to meet the data points) are. As you can see the y value equals the points y value.

I think something a bit smaller than a pixel ( plot xrange / (plot width * factor)) should yield good results because you won't notice the data points.

                    //add point to front
                    front[X] = points[curX] - fpDist;
                    front[Y] = points[curY];

                    //add point to back
                    back[X] = points[curX] + fpDist;
                    back[Y] = points[curY];

from curvedlines.

ok I implemented auto guessing for the fitPointDist. Updateing curvedLines should solve your problem now (hopefully)

from curvedlines.