using UnityEngine; namespace XCharts.Runtime { public static class AxisHelper { /// /// 包含箭头偏移的轴线长度 /// /// /// public static float GetAxisLineArrowOffset(Axis axis) { if (axis.axisLine.show && axis.axisLine.showArrow && axis.axisLine.arrow.offset > 0) { return axis.axisLine.arrow.offset; } return 0; } /// /// 获得分割段数 /// /// /// public static int GetSplitNumber(Axis axis, float coordinateWid, DataZoom dataZoom) { if (axis.type == Axis.AxisType.Value) { return axis.context.labelValueList.Count - 1; } else if (axis.type == Axis.AxisType.Time) { return axis.context.labelValueList.Count; } else if (axis.type == Axis.AxisType.Log) { return axis.splitNumber > 0 ? axis.splitNumber : 4; } else if (axis.type == Axis.AxisType.Category) { int dataCount = axis.GetDataList(dataZoom).Count; if (!axis.boundaryGap) dataCount -= 1; if (dataCount <= 0) dataCount = 1; if (axis.splitNumber <= 0) { if (dataCount <= 10) return dataCount; else { for (int i = 4; i < 6; i++) { if (dataCount % i == 0) return i; } return 5; } } else { if (axis.splitNumber <= 0 || axis.splitNumber > dataCount) return dataCount; if (dataCount >= axis.splitNumber * 2) return axis.splitNumber; else return dataCount; } } return 0; } /// /// 获得一个类目数据在坐标系中代表的宽度 /// /// /// /// public static float GetDataWidth(Axis axis, float coordinateWidth, int dataCount, DataZoom dataZoom) { if (dataCount < 1) dataCount = 1; if (axis.IsValue()) return dataCount > 1 ? coordinateWidth / (dataCount - 1) : coordinateWidth; var categoryCount = axis.GetDataCount(dataZoom); int segment = (axis.boundaryGap ? categoryCount : categoryCount - 1); segment = segment <= 0 ? dataCount : segment; if (segment <= 0) segment = 1; return coordinateWidth / segment; } /// /// 获得标签显示的名称 /// /// /// /// /// /// public static string GetLabelName(Axis axis, float coordinateWidth, int index, double minValue, double maxValue, DataZoom dataZoom, bool forcePercent) { int split = GetSplitNumber(axis, coordinateWidth, dataZoom); if (axis.type == Axis.AxisType.Value) { if (minValue == 0 && maxValue == 0) maxValue = axis.max != 0 ? axis.max : 1; double value = 0; if (forcePercent) maxValue = 100; value = axis.GetLabelValue(index); if (axis.inverse) { value = -value; minValue = -minValue; maxValue = -maxValue; } if (forcePercent) return string.Format("{0}%", (int) value); else return axis.axisLabel.GetFormatterContent(index, value, minValue, maxValue); } else if (axis.type == Axis.AxisType.Log) { double value = axis.logBaseE ? System.Math.Exp(axis.GetLogMinIndex() + index) : System.Math.Pow(axis.logBase, axis.GetLogMinIndex() + index); if (axis.inverse) { value = -value; minValue = -minValue; maxValue = -maxValue; } return axis.axisLabel.GetFormatterContent(index, value, minValue, maxValue, true); } else if (axis.type == Axis.AxisType.Time) { if (minValue == 0 && maxValue == 0) return string.Empty; if (index > axis.context.labelValueList.Count - 1) return string.Empty; var value = axis.GetLabelValue(index); return axis.axisLabel.GetFormatterDateTime(index, value, minValue, maxValue); } var showData = axis.GetDataList(dataZoom); int dataCount = showData.Count; if (dataCount <= 0) return ""; int rate = axis.boundaryGap ? (dataCount / split) : (dataCount - 1) / split; if (rate == 0) rate = 1; if (axis.insertDataToHead) { if (index > 0) { var residue = (dataCount - 1) - split * rate; var newIndex = residue + (index - 1) * rate; if (newIndex < 0) newIndex = 0; return axis.axisLabel.GetFormatterContent(newIndex, showData[newIndex]); } else { if (axis.boundaryGap && coordinateWidth / dataCount > 5) return string.Empty; else return axis.axisLabel.GetFormatterContent(0, showData[0]); } } else { int newIndex = index * rate; if (newIndex < dataCount) { return axis.axisLabel.GetFormatterContent(newIndex, showData[newIndex]); } else { if (axis.boundaryGap && coordinateWidth / dataCount > 5) return string.Empty; else return axis.axisLabel.GetFormatterContent(dataCount - 1, showData[dataCount - 1]); } } } /// /// 获得分割线条数 /// /// /// public static int GetScaleNumber(Axis axis, float coordinateWidth, DataZoom dataZoom = null) { int splitNum = GetSplitNumber(axis, coordinateWidth, dataZoom); if (splitNum == 0) return 0; if (axis.IsCategory()) { var dataCount = axis.GetDataList(dataZoom).Count; var scaleNum = 0; if (axis.boundaryGap) { scaleNum = dataCount > 2 && dataCount % splitNum == 0 ? splitNum + 1 : splitNum + 2; } else { if (dataCount < splitNum) scaleNum = splitNum; else scaleNum = dataCount > 2 && dataCount % splitNum == 0 ? splitNum : splitNum + 1; } return scaleNum; } else if (axis.IsTime()) return splitNum; else return splitNum + 1; } /// /// 获得分割段宽度 /// /// /// /// public static float GetScaleWidth(Axis axis, float coordinateWidth, int index, DataZoom dataZoom = null) { if (index < 0) return 0; int num = GetScaleNumber(axis, coordinateWidth, dataZoom); int splitNum = GetSplitNumber(axis, coordinateWidth, dataZoom); if (num <= 0) num = 1; if (axis.IsTime() || axis.IsValue()) { var value = axis.GetLabelValue(index); var lastValue = axis.GetLabelValue(index - 1); return axis.context.minMaxRange == 0 ? 0 : (float) (coordinateWidth * (value - lastValue) / axis.context.minMaxRange); } else { var data = axis.GetDataList(dataZoom); if (axis.IsCategory() && data.Count > 0) { var count = axis.boundaryGap ? data.Count : data.Count - 1; int tick = count / splitNum; if (count <= 0) return 0; var each = coordinateWidth / count; if (axis.insertDataToHead) { var max = axis.boundaryGap ? splitNum : splitNum - 1; if (index == 1) { if (axis.axisTick.alignWithLabel) return each * tick; else return coordinateWidth - each * tick * max; } else { if (count < splitNum) return each; else return each * (count / splitNum); } } else { var max = axis.boundaryGap ? num - 1 : num; if (index >= max) { if (axis.axisTick.alignWithLabel) return each * tick; else return coordinateWidth - each * tick * (index - 1); } else { if (count < splitNum) return each; else return each * (count / splitNum); } } } else { if (splitNum <= 0) return 0; else return coordinateWidth / splitNum; } } } public static float GetEachWidth(Axis axis, float coordinateWidth, DataZoom dataZoom = null) { var data = axis.GetDataList(dataZoom); if (data.Count > 0) { var count = axis.boundaryGap ? data.Count : data.Count - 1; return count > 0 ? coordinateWidth / count : coordinateWidth; } else { int num = GetScaleNumber(axis, coordinateWidth, dataZoom) - 1; return num > 0 ? coordinateWidth / num : coordinateWidth; } } /// /// 调整最大最小值 /// /// /// public static void AdjustMinMaxValue(Axis axis, ref double minValue, ref double maxValue, bool needFormat, int ceilRate = 0) { if (axis.type == Axis.AxisType.Log) { int minSplit = 0; int maxSplit = 0; maxValue = ChartHelper.GetMaxLogValue(maxValue, axis.logBase, axis.logBaseE, out maxSplit); minValue = ChartHelper.GetMinLogValue(minValue, axis.logBase, axis.logBaseE, out minSplit); axis.splitNumber = (minSplit > 0 && maxSplit > 0) ? (maxSplit + minSplit - 1) : (maxSplit + minSplit); return; } if (axis.type == Axis.AxisType.Time) { } else if (axis.minMaxType == Axis.AxisMinMaxType.Custom) { if (axis.min != 0 || axis.max != 0) { if (axis.inverse) { minValue = -axis.max; maxValue = -axis.min; } else { minValue = axis.min; maxValue = axis.max; } } } else { if (ceilRate == 0) ceilRate = axis.ceilRate; switch (axis.minMaxType) { case Axis.AxisMinMaxType.Default: if (minValue == 0 && maxValue == 0) { } else if (minValue > 0 && maxValue > 0) { minValue = 0; maxValue = needFormat ? ChartHelper.GetMaxDivisibleValue(maxValue, ceilRate) : maxValue; } else if (minValue < 0 && maxValue < 0) { minValue = needFormat ? ChartHelper.GetMinDivisibleValue(minValue, ceilRate) : minValue; maxValue = 0; } else { minValue = needFormat ? ChartHelper.GetMinDivisibleValue(minValue, ceilRate) : minValue; maxValue = needFormat ? ChartHelper.GetMaxDivisibleValue(maxValue, ceilRate) : maxValue; } break; case Axis.AxisMinMaxType.MinMax: minValue = ceilRate != 0 ? ChartHelper.GetMinDivisibleValue(minValue, ceilRate) : minValue; maxValue = ceilRate != 0 ? ChartHelper.GetMaxDivisibleValue(maxValue, ceilRate) : maxValue; break; } } } public static bool NeedShowSplit(Axis axis) { if (!axis.show) return false; if (axis.IsCategory() && axis.GetDataList().Count <= 0) return false; else return true; } public static void AdjustCircleLabelPos(ChartLabel txt, Vector3 pos, Vector3 cenPos, float txtHig, Vector3 offset) { var txtWidth = txt.text.GetPreferredWidth(); var sizeDelta = new Vector2(txtWidth, txt.text.GetPreferredHeight()); txt.text.SetSizeDelta(sizeDelta); var diff = pos.x - cenPos.x; if (diff < -1f) //left { pos = new Vector3(pos.x - txtWidth / 2, pos.y); } else if (diff > 1f) //right { pos = new Vector3(pos.x + txtWidth / 2, pos.y); } else { float y = pos.y > cenPos.y ? pos.y + txtHig / 2 : pos.y - txtHig / 2; pos = new Vector3(pos.x, y); } txt.SetPosition(pos + offset); } public static void AdjustRadiusAxisLabelPos(ChartLabel txt, Vector3 pos, Vector3 cenPos, float txtHig, Vector3 offset) { var txtWidth = txt.text.GetPreferredWidth(); var sizeDelta = new Vector2(txtWidth, txt.text.GetPreferredHeight()); txt.text.SetSizeDelta(sizeDelta); var diff = pos.y - cenPos.y; if (diff > 20f) //left { pos = new Vector3(pos.x - txtWidth / 2, pos.y); } else if (diff < -20f) //right { pos = new Vector3(pos.x + txtWidth / 2, pos.y); } else { float y = pos.y > cenPos.y ? pos.y + txtHig / 2 : pos.y - txtHig / 2; pos = new Vector3(pos.x, y); } txt.SetPosition(pos); } public static float GetAxisPosition(GridCoord grid, Axis axis, double value, int dataCount = 0, DataZoom dataZoom = null) { var gridHeight = axis is YAxis ? grid.context.height : grid.context.width; var gridXY = axis is YAxis ? grid.context.y : grid.context.x; if (axis.IsCategory()) { if (dataCount == 0) dataCount = axis.data.Count; var categoryIndex = (int) value; var scaleWid = AxisHelper.GetDataWidth(axis, gridHeight, dataCount, dataZoom); float startY = gridXY + (axis.boundaryGap ? scaleWid / 2 : 0); return startY + scaleWid * categoryIndex; } else { var yDataHig = (axis.context.minMaxRange == 0) ? 0f : (float) ((value - axis.context.minValue) / axis.context.minMaxRange * gridHeight); return gridXY + yDataHig; } } public static double GetAxisPositionValue(GridCoord grid, Axis axis, Vector3 pos) { if (axis is YAxis) return GetAxisPositionValue(pos.y, grid.context.height, axis.context.minMaxRange, grid.context.y, axis.context.offset); else if (axis is XAxis) return GetAxisPositionValue(pos.x, grid.context.width, axis.context.minMaxRange, grid.context.x, axis.context.offset); else return 0; } public static double GetAxisPositionValue(float xy, float axisLength, double axisRange, float axisStart, float axisOffset) { var yRate = axisRange / axisLength; return yRate * (xy - axisStart - axisOffset); } /// /// 获得数值value在坐标轴上的坐标位置 /// /// /// /// /// /// public static float GetAxisValuePosition(GridCoord grid, Axis axis, float scaleWidth, double value) { return GetAxisPositionInternal(grid, axis, scaleWidth, value, true, false); } /// /// 获得数值value在坐标轴上相对起点的距离 /// /// /// /// /// /// public static float GetAxisValueDistance(GridCoord grid, Axis axis, float scaleWidth, double value) { return GetAxisPositionInternal(grid, axis, scaleWidth, value, false, false); } /// /// 获得数值value在坐标轴上对应的长度 /// /// /// /// /// /// public static float GetAxisValueLength(GridCoord grid, Axis axis, float scaleWidth, double value) { return GetAxisPositionInternal(grid, axis, scaleWidth, value, false, true); } private static float GetAxisPositionInternal(GridCoord grid, Axis axis, float scaleWidth, double value, bool includeGridXY, bool realLength) { var isY = axis is YAxis; var gridHeight = isY ? grid.context.height : grid.context.width; var gridXY = isY ? grid.context.y : grid.context.x; if (axis.IsLog()) { int minIndex = axis.GetLogMinIndex(); float nowIndex = axis.GetLogValue(value); return includeGridXY ? gridXY + (nowIndex - minIndex) / axis.splitNumber * gridHeight : (nowIndex - minIndex) / axis.splitNumber * gridHeight; } else if (axis.IsCategory()) { var categoryIndex = (int) value; return includeGridXY ? gridXY + (axis.boundaryGap ? scaleWidth / 2 : 0) + scaleWidth * categoryIndex : (axis.boundaryGap ? scaleWidth / 2 : 0) + scaleWidth * categoryIndex; } else { var yDataHig = 0f; if (axis.context.minMaxRange != 0) { if (realLength) yDataHig = (float) (value * gridHeight / axis.context.minMaxRange); else yDataHig = (float) ((value - axis.context.minValue) / axis.context.minMaxRange * gridHeight); } return includeGridXY ? gridXY + yDataHig : yDataHig; } } } }