Function zoomAxRanges

src/plots/cartesian/dragbox.js:1085–1110

(axList, r0Fraction, r1Fraction, updates, linkedAxes)

}

function zoomAxRanges(axList, r0Fraction, r1Fraction, updates, linkedAxes) {
    for(var i = 0; i < axList.length; i++) {
        var axi = axList[i];
        if(axi.fixedrange) continue;

        if(axi.rangebreaks) {
            var isY = axi._id.charAt(0) === 'y';
            var r0F = isY ? (1 - r0Fraction) : r0Fraction;
            var r1F = isY ? (1 - r1Fraction) : r1Fraction;

            updates[axi._name + '.range[0]'] = axi.l2r(axi.p2l(r0F * axi._length));
            updates[axi._name + '.range[1]'] = axi.l2r(axi.p2l(r1F * axi._length));
        } else {
            var axRangeLinear0 = axi._rl[0];
            var axRangeLinearSpan = axi._rl[1] - axRangeLinear0;
            updates[axi._name + '.range[0]'] = axi.l2r(axRangeLinear0 + axRangeLinearSpan * r0Fraction);
            updates[axi._name + '.range[1]'] = axi.l2r(axRangeLinear0 + axRangeLinearSpan * r1Fraction);
        }
    }

    // zoom linked axes about their centers
    if(linkedAxes && linkedAxes.length) {
        var linkedR0Fraction = (r0Fraction + (1 - r1Fraction)) / 2;
        zoomAxRanges(linkedAxes, linkedR0Fraction, 1 - linkedR0Fraction, updates, []);
    }
}

function dragAxList(axList, pix) {
    for(var i = 0; i < axList.length; i++) {