Function estimateLength

libs/echarts/echarts.simple.js:7939–7947

(text, contentWidth, ascCharWidth, cnCharWidth)

}

function estimateLength(text, contentWidth, ascCharWidth, cnCharWidth) {
    var width = 0;
    var i = 0;
    for (var len = text.length; i < len && width < contentWidth; i++) {
        var charCode = text.charCodeAt(i);
        width += (0 <= charCode && charCode <= 127) ? ascCharWidth : cnCharWidth;
    }
    return i;
}

/**
 * @public