コード例 #1
0
        /// <summary>
        /// 获得标签显示的名称
        /// </summary>
        /// <param name="index"></param>
        /// <param name="minValue"></param>
        /// <param name="maxValue"></param>
        /// <param name="dataZoom"></param>
        /// <returns></returns>
        internal static string GetLabelName(Axis axis, float coordinateWidth, int index, float minValue, float maxValue,
                                            DataZoom dataZoom, bool forcePercent)
        {
            int split = GetSplitNumber(axis, coordinateWidth, dataZoom);

            if (axis.type == Axis.AxisType.Value)
            {
                if (minValue == 0 && maxValue == 0)
                {
                    return(string.Empty);
                }
                var value = 0f;
                if (forcePercent)
                {
                    maxValue = 100;
                }
                if (axis.interval > 0)
                {
                    if (index == split)
                    {
                        value = maxValue;
                    }
                    else
                    {
                        value = minValue + index * axis.interval;
                    }
                }
                else
                {
                    value = minValue + (maxValue - minValue) * index / split;
                    if (!axis.clockwise && value != minValue)
                    {
                        value = maxValue - value;
                    }
                }
                if (axis.inverse)
                {
                    value    = -value;
                    minValue = -minValue;
                    maxValue = -maxValue;
                }

                if (forcePercent)
                {
                    return(string.Format("{0}%", (int)value));
                }
                else
                {
                    return(axis.axisLabel.GetFormatterContent(value, minValue, maxValue));
                }
            }
            else if (axis.type == Axis.AxisType.Log)
            {
                float value = axis.logBaseE ? Mathf.Exp(axis.runtimeMinLogIndex + index) :
                              Mathf.Pow(axis.logBase, axis.runtimeMinLogIndex + index);
                if (axis.inverse)
                {
                    value    = -value;
                    minValue = -minValue;
                    maxValue = -maxValue;
                }
                return(axis.axisLabel.GetFormatterContent(value, minValue, maxValue, true));
            }
            else if (axis.type == Axis.AxisType.Time)
            {
                if (minValue == 0 && maxValue == 0)
                {
                    return(string.Empty);
                }
                var value = 0f;
                if (axis.interval > 0)
                {
                    if (index == split)
                    {
                        value = maxValue;
                    }
                    else
                    {
                        value = minValue + index * axis.interval;
                    }
                }
                else
                {
                    value = minValue + (maxValue - minValue) * index / split;
                }
                var timestamp = (int)value;
                var dateTime  = DateTimeUtil.GetDateTime(timestamp);
                return(axis.axisLabel.GetFormatterDateTime(dateTime));
            }
            var showData  = axis.GetDataList(dataZoom);
            int dataCount = showData.Count;

            if (dataCount <= 0)
            {
                return("");
            }
            int rate     = Mathf.RoundToInt(dataCount * 1f / split);
            int newIndex = index * rate;

            if (newIndex <= dataCount - 1)
            {
                return(axis.axisLabel.GetFormatterContent(showData[newIndex]));
            }
            else
            {
                if (rate == 1)
                {
                    return(string.Empty);
                }
                else if (axis.boundaryGap && coordinateWidth / dataCount > 10)
                {
                    return(string.Empty);
                }
                else
                {
                    if ((index - 1) * rate > dataCount - 1)
                    {
                        return(string.Empty);
                    }
                    else
                    {
                        return(axis.axisLabel.GetFormatterContent(showData[dataCount - 1]));
                    }
                }
            }
        }