Function adjustScaleForOverflow

libs/echarts/echarts-en.simple.js:37739–37772

(min, max, model, barWidthAndOffset)

}

function adjustScaleForOverflow(min, max, model, barWidthAndOffset) {

    // Get Axis Length
    var axisExtent = model.axis.getExtent();
    var axisLength = axisExtent[1] - axisExtent[0];

    // Get bars on current base axis and calculate min and max overflow
    var barsOnCurrentAxis = retrieveColumnLayout(barWidthAndOffset, model.axis);
    if (barsOnCurrentAxis === undefined) {
        return {min: min, max: max};
    }

    var minOverflow = Infinity;
    each$1(barsOnCurrentAxis, function (item) {
        minOverflow = Math.min(item.offset, minOverflow);
    });
    var maxOverflow = -Infinity;
    each$1(barsOnCurrentAxis, function (item) {
        maxOverflow = Math.max(item.offset + item.width, maxOverflow);
    });
    minOverflow = Math.abs(minOverflow);
    maxOverflow = Math.abs(maxOverflow);
    var totalOverFlow = minOverflow + maxOverflow;

    // Calulate required buffer based on old range and overflow
    var oldRange = max - min;
    var oldRangePercentOfNew = (1 - (minOverflow + maxOverflow) / axisLength);
    var overflowBuffer = ((oldRange / oldRangePercentOfNew) - oldRange);

    max += overflowBuffer * (maxOverflow / totalOverFlow);
    min -= overflowBuffer * (minOverflow / totalOverFlow);

    return {min: min, max: max};
}

function niceScaleExtent(scale, model) {
    var extentInfo = getScaleExtent(scale, model);