Function setConvertRadial

src/plots/polar/set_convert.js:55–82

(ax, polarLayout)

};

function setConvertRadial(ax, polarLayout) {
    var subplot = polarLayout._subplot;

    ax.setGeometry = function() {
        var rl0 = ax._rl[0];
        var rl1 = ax._rl[1];

        var b = subplot.innerRadius;
        var m = (subplot.radius - b) / (rl1 - rl0);
        var b2 = b / m;

        var rFilter = rl0 > rl1 ?
            function(v) { return v <= 0; } :
            function(v) { return v >= 0; };

        ax.c2g = function(v) {
            var r = ax.c2l(v) - rl0;
            return (rFilter(r) ? r : 0) + b2;
        };

        ax.g2c = function(v) {
            return ax.l2c(v + rl0 - b2);
        };

        ax.g2p = function(v) { return v * m; };
        ax.c2p = function(v) { return ax.g2p(ax.c2g(v)); };
    };
}

function toRadians(v, unit) {
    return unit === 'degrees' ? deg2rad(v) : v;