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XCharts/Scripts/UI/LineChart.cs

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using System;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.UI;
namespace XCharts
{
[AddComponentMenu("XCharts/LineChart", 13)]
[ExecuteInEditMode]
[RequireComponent(typeof(RectTransform))]
[DisallowMultipleComponent]
public class LineChart : CoordinateChart
{
#if UNITY_EDITOR
protected override void Reset()
{
base.Reset();
m_Title.text = "LineChart";
m_Tooltip.type = Tooltip.Type.Line;
RemoveData();
AddSerie("serie1", SerieType.Line);
for (int i = 0; i < 5; i++)
{
AddXAxisData("x" + (i + 1));
AddData(0, UnityEngine.Random.Range(10, 90));
}
}
#endif
protected override void DrawChart(VertexHelper vh)
{
base.DrawChart(vh);
if (m_YAxises[0].type == Axis.AxisType.Category
|| m_YAxises[1].type == Axis.AxisType.Category)
{
DrawLineChart(vh, true);
}
else
{
DrawLineChart(vh, false);
}
}
private Dictionary<int, List<Serie>> m_StackSeries = new Dictionary<int, List<Serie>>();
private List<float> m_SeriesCurrHig = new List<float>();
private HashSet<string> m_SerieNameSet = new HashSet<string>();
private void DrawLineChart(VertexHelper vh, bool yCategory)
{
m_Series.GetStackSeries(ref m_StackSeries);
int seriesCount = m_StackSeries.Count;
int serieCount = 0;
m_SerieNameSet.Clear();
int serieNameCount = -1;
for (int j = 0; j < seriesCount; j++)
{
var serieList = m_StackSeries[j];
if (serieList.Count <= 0) continue;
m_SeriesCurrHig.Clear();
if (m_SeriesCurrHig.Capacity != serieList[0].dataCount)
{
m_SeriesCurrHig.Capacity = serieList[0].dataCount;
}
for (int n = 0; n < serieList.Count; n++)
{
Serie serie = serieList[n];
serie.dataPoints.Clear();
if (string.IsNullOrEmpty(serie.name)) serieNameCount++;
else if (!m_SerieNameSet.Contains(serie.name))
{
m_SerieNameSet.Add(serie.name);
serieNameCount++;
}
if (yCategory) DrawYLineSerie(vh, serieCount, serie, ref m_SeriesCurrHig);
else DrawXLineSerie(vh, serieCount, serie, ref m_SeriesCurrHig);
if (serie.show)
{
serieCount++;
}
}
}
DrawLinePoint(vh);
if (yCategory) DrawYTooltipIndicator(vh);
else DrawXTooltipIndicator(vh);
}
private void DrawLinePoint(VertexHelper vh)
{
for (int n = 0; n < m_Series.Count; n++)
{
var serie = m_Series.GetSerie(n);
if (!serie.show || serie.symbol.type == SerieSymbolType.None) continue;
for (int i = 0; i < serie.dataPoints.Count; i++)
{
Vector3 p = serie.dataPoints[i];
bool highlight = (m_Tooltip.show && m_Tooltip.IsSelected(i)) || serie.data[i].highlighted || serie.highlighted;
float symbolSize = highlight ? serie.symbol.selectedSize : serie.symbol.size;
var symbolColor = serie.GetSymbolColor(m_ThemeInfo, n, highlight);
DrawSymbol(vh, serie.symbol.type, symbolSize, serie.lineStyle.width, p, symbolColor);
}
}
}
private void DrawXLineSerie(VertexHelper vh, int serieIndex, Serie serie, ref List<float> seriesHig)
{
if (!IsActive(serie.index)) return;
var showData = serie.GetDataList(m_DataZoom);
if (showData.Count <= 0) return;
Color lineColor = serie.GetLineColor(m_ThemeInfo, serieIndex, false);
Color areaColor = serie.GetAreaColor(m_ThemeInfo, serieIndex, false);
Color areaToColor = serie.GetAreaToColor(m_ThemeInfo, serieIndex, false);
Vector3 lp = Vector3.zero, np = Vector3.zero, nnp = Vector3.zero;
var yAxis = m_YAxises[serie.axisIndex];
var xAxis = m_XAxises[serie.axisIndex];
var zeroPos = new Vector3(coordinateX, coordinateY + yAxis.zeroYOffset);
var lastSerie = m_Series.GetSerie(serie.index - 1);
var isStack = m_Series.IsStack(serie.stack, SerieType.Line);
if (!xAxis.show) xAxis = m_XAxises[(serie.axisIndex + 1) % m_XAxises.Count];
float scaleWid = xAxis.GetDataWidth(coordinateWid, m_DataZoom);
float startX = coordinateX + (xAxis.boundaryGap ? scaleWid / 2 : 0);
int maxCount = maxShowDataNumber > 0 ?
(maxShowDataNumber > showData.Count ? showData.Count : maxShowDataNumber)
: showData.Count;
if (seriesHig.Count < minShowDataNumber)
{
for (int i = 0; i < minShowDataNumber; i++)
{
seriesHig.Add(0);
}
}
for (int i = minShowDataNumber; i < maxCount; i++)
{
if (i >= seriesHig.Count)
{
seriesHig.Add(0);
}
float yValue = showData[i].data[1];
seriesHig[i] += GetDataPoint(xAxis, yAxis, showData, yValue, startX, i, scaleWid, seriesHig[i], ref np);
serie.dataPoints.Add(np);
lp = np;
}
if (serie.dataPoints.Count <= 0)
{
return;
}
lp = serie.dataPoints[0];
for (int i = 1; i < serie.dataPoints.Count; i++)
{
np = serie.dataPoints[i];
serie.ClearSmoothList(i);
switch (serie.lineType)
{
case LineType.Normal:
nnp = i < serie.dataPoints.Count - 1 ? serie.dataPoints[i + 1] : np;
DrawNormalLine(vh, serieIndex, serie, xAxis, lp, np, nnp, i, lineColor, areaColor, areaToColor, zeroPos);
break;
case LineType.Smooth:
DrawSmoothLine(vh, serieIndex, serie, xAxis, lp, np, i, lineColor, areaColor, areaToColor, isStack, zeroPos);
break;
case LineType.StepStart:
case LineType.StepMiddle:
case LineType.StepEnd:
DrawStepLine(vh, serieIndex, serie, xAxis, lp, np, i, lineColor, areaColor, zeroPos);
break;
}
lp = np;
}
}
private float GetDataPoint(Axis xAxis, Axis yAxis, List<SerieData> showData, float yValue, float startX, int i, float scaleWid, float serieHig, ref Vector3 np)
{
float yDataHig;
if (xAxis.IsValue())
{
float xValue = i > showData.Count - 1 ? 0 : showData[i].data[0];
float pX = coordinateX + xAxis.axisLine.width;
float pY = serieHig + coordinateY + xAxis.axisLine.width;
float xDataHig = (xValue - xAxis.minValue) / (xAxis.maxValue - xAxis.minValue) * coordinateWid;
yDataHig = (yValue - yAxis.minValue) / (yAxis.maxValue - yAxis.minValue) * coordinateHig;
np = new Vector3(pX + xDataHig, pY + yDataHig);
}
else
{
float pX = startX + i * scaleWid;
float pY = serieHig + coordinateY + yAxis.axisLine.width;
yDataHig = (yValue - yAxis.minValue) / (yAxis.maxValue - yAxis.minValue) * coordinateHig;
np = new Vector3(pX, pY + yDataHig);
}
return yDataHig;
}
private void DrawYLineSerie(VertexHelper vh, int serieIndex, Serie serie, ref List<float> seriesHig)
{
if (!IsActive(serie.index)) return;
var showData = serie.GetDataList(m_DataZoom);
Vector3 lp = Vector3.zero;
Vector3 np = Vector3.zero;
Vector3 nnp = Vector3.zero;
Color lineColor = serie.GetLineColor(m_ThemeInfo, serieIndex, false);
Color areaColor = serie.GetAreaColor(m_ThemeInfo, serieIndex, false);
Color areaToColor = serie.GetAreaToColor(m_ThemeInfo, serieIndex, false);
var xAxis = m_XAxises[serie.axisIndex];
var yAxis = m_YAxises[serie.axisIndex];
var zeroPos = new Vector3(coordinateX + xAxis.zeroXOffset, coordinateY);
var lastSerie = m_Series.GetSerie(serieIndex - 1);
var isStack = m_Series.IsStack(serie.stack, SerieType.Line);
if (!yAxis.show) yAxis = m_YAxises[(serie.axisIndex + 1) % m_YAxises.Count];
float scaleWid = yAxis.GetDataWidth(coordinateHig, m_DataZoom);
float startY = coordinateY + (yAxis.boundaryGap ? scaleWid / 2 : 0);
int maxCount = maxShowDataNumber > 0 ?
(maxShowDataNumber > showData.Count ? showData.Count : maxShowDataNumber)
: showData.Count;
if (seriesHig.Count < minShowDataNumber)
{
for (int i = 0; i < minShowDataNumber; i++)
{
seriesHig.Add(0);
}
}
for (int i = minShowDataNumber; i < maxCount; i++)
{
if (i >= seriesHig.Count)
{
seriesHig.Add(0);
}
float value = showData[i].data[1];
float pY = startY + i * scaleWid;
float pX = seriesHig[i] + coordinateX + yAxis.axisLine.width;
float dataHig = (value - xAxis.minValue) / (xAxis.maxValue - xAxis.minValue) * coordinateWid;
np = new Vector3(pX + dataHig, pY);
serie.dataPoints.Add(np);
seriesHig[i] += dataHig;
lp = np;
}
lp = serie.dataPoints[0];
for (int i = 1; i < serie.dataPoints.Count; i++)
{
np = serie.dataPoints[i];
serie.ClearSmoothList(i);
switch (serie.lineType)
{
case LineType.Normal:
nnp = i < serie.dataPoints.Count - 1 ? serie.dataPoints[i + 1] : np;
DrawNormalLine(vh, serieIndex, serie, yAxis, lp, np, nnp, i, lineColor, areaColor, areaToColor, zeroPos);
break;
case LineType.Smooth:
DrawSmoothLine(vh, serieIndex, serie, yAxis, lp, np, i, lineColor, areaColor, areaToColor, isStack, zeroPos);
break;
case LineType.StepStart:
case LineType.StepMiddle:
case LineType.StepEnd:
DrawStepLine(vh, serieIndex, serie, yAxis, lp, np, i, lineColor, areaColor, zeroPos);
break;
}
lp = np;
}
}
private Vector3 stPos1 = Vector3.zero, stPos2 = Vector3.zero, lastDir, lastDnPos;
private void DrawNormalLine(VertexHelper vh, int serieIndex, Serie serie, Axis axis, Vector3 lp,
Vector3 np, Vector3 nnp, int dataIndex, Color lineColor, Color areaColor, Color areaToColor, Vector3 zeroPos)
{
bool isYAxis = axis is YAxis;
var lastSerie = m_Series.GetLastStackSerie(serie);
Vector3 dnPos, upPos1, upPos2, dir1v, dir2v;
bool isDown;
var dir1 = (np - lp).normalized;
dir1v = Vector3.Cross(dir1, Vector3.forward).normalized * (isYAxis ? -1 : 1);
float cut = 0;
if (np != nnp)
{
var dir2 = (nnp - np).normalized;
var dir3 = (dir1 + dir2).normalized;
var normal = Vector3.Cross(dir1, dir2);
isDown = isYAxis ? normal.z >= 0 : normal.z <= 0;
var angle = (180 - Vector3.Angle(dir1, dir2)) * Mathf.Deg2Rad / 2;
var diff = serie.lineStyle.width / Mathf.Sin(angle);
cut = serie.lineStyle.width / Mathf.Tan(angle);
var dirDp = Vector3.Cross(dir3, Vector3.forward).normalized * (isYAxis ? -1 : 1);
dir2v = Vector3.Cross(dir2, Vector3.forward).normalized * (isYAxis ? -1 : 1);
dnPos = np + (isDown ? dirDp : -dirDp) * diff;
upPos1 = np + (isDown ? -dir1v : dir1v) * serie.lineStyle.width;
upPos2 = np + (isDown ? -dir2v : dir2v) * serie.lineStyle.width;
if (dataIndex == 1)
{
stPos1 = lp - dir1v * serie.lineStyle.width;
stPos2 = lp + dir1v * serie.lineStyle.width;
}
if (isDown)
{
ChartHelper.DrawPolygon(vh, stPos1, upPos1, dnPos, stPos2, lineColor);
ChartHelper.DrawTriangle(vh, upPos1, upPos2, dnPos, lineColor);
}
else
{
ChartHelper.DrawPolygon(vh, stPos1, dnPos, upPos1, stPos2, lineColor);
ChartHelper.DrawTriangle(vh, dnPos, upPos2, upPos1, lineColor);
}
lastDir = dir1;
}
else
{
isDown = Vector3.Cross(dir1, lastDir).z <= 0;
if (isYAxis) isDown = !isDown;
dir1v = Vector3.Cross(dir1, Vector3.forward).normalized * (isYAxis ? -1 : 1);
upPos1 = np - dir1v * serie.lineStyle.width;
upPos2 = np + dir1v * serie.lineStyle.width;
dnPos = isDown ? upPos2 : upPos1;
ChartHelper.DrawPolygon(vh, stPos1, upPos1, upPos2, stPos2, lineColor);
}
var smoothPoints = serie.GetUpSmoothList(dataIndex);
var smoothDownPoints = serie.GetDownSmoothList(dataIndex);
var dist = Vector3.Distance(lp, np);
var fine = m_Series.IsAnyGradientSerie(serie.stack);
var tick = fine ? 3f : 30f;
int segment = (int)(dist / tick);
smoothPoints.Clear();
smoothDownPoints.Clear();
smoothPoints.Add(stPos1);
smoothDownPoints.Add(stPos2);
for (int i = 1; i < segment; i++)
{
var cp = lp + dir1 * dist * i / segment;
var tp1 = cp - dir1v * serie.lineStyle.width;
var tp2 = cp + dir1v * serie.lineStyle.width;
if (isDown)
{
if (isYAxis)
{
if (tp1.y > lastDnPos.y || dataIndex == 1) smoothPoints.Add(tp1);
if (tp2.y < dnPos.y) smoothDownPoints.Add(tp2);
}
else
{
if (tp1.x > lastDnPos.x || dataIndex == 1) smoothPoints.Add(tp1);
if (tp2.x < dnPos.x || dataIndex == 1) smoothDownPoints.Add(tp2);
}
}
else
{
if (isYAxis)
{
if (tp1.y < dnPos.y) smoothPoints.Add(tp1);
if (tp2.y > lastDnPos.y || dataIndex == 1) smoothDownPoints.Add(tp2);
}
else
{
if (tp1.x < dnPos.x) smoothPoints.Add(tp1);
if (tp2.x > lastDnPos.x || dataIndex == 1) smoothDownPoints.Add(tp2);
}
}
}
if (isDown)
{
smoothPoints.Add(upPos1);
smoothPoints.Add(upPos2);
smoothDownPoints.Add(dnPos);
}
else
{
smoothPoints.Add(dnPos);
if (isYAxis)
{
smoothDownPoints.Add(np != nnp ? upPos1 : upPos2);
smoothDownPoints.Add(np != nnp ? upPos2 : upPos1);
}
else
{
smoothDownPoints.Add(np != nnp ? upPos1 : upPos2);
smoothDownPoints.Add(np != nnp ? upPos2 : upPos1);
}
}
if (serie.areaStyle.show)
{
if (lastSerie != null)
{
var lastSmoothPoints = lastSerie.GetUpSmoothList(dataIndex);
DrawStackArea(vh, serie, axis, smoothDownPoints, lastSmoothPoints, lineColor, areaColor, areaToColor);
}
else
{
Vector3 alp = new Vector3(lp.x, lp.y - serie.lineStyle.width);
Vector3 anp = new Vector3(np.x, np.y - serie.lineStyle.width);
Vector3 aep = isYAxis ? new Vector3(zeroPos.x, zeroPos.y + coordinateHig) : new Vector3(zeroPos.x + coordinateWid, zeroPos.y);
var cross = ChartHelper.GetIntersection(lp, np, zeroPos, aep);
if (cross == Vector3.zero)
{
var points = ((isYAxis && lp.x < zeroPos.x) || (!isYAxis && lp.y < zeroPos.y)) ? smoothPoints : smoothDownPoints;
Vector3 sp = points[0];
Vector3 ep;
for (int i = 1; i < points.Count; i++)
{
ep = points[i];
DrawPolygonToZero(vh, sp, ep, axis, zeroPos, areaColor, areaToColor);
sp = ep;
}
}
else
{
var sp1 = smoothDownPoints[1];
var ep1 = smoothDownPoints[smoothDownPoints.Count - 2];
var axisUpStart = zeroPos + (isYAxis ? Vector3.right : Vector3.up) * axis.axisLine.width;
var axisUpEnd = axisUpStart + (isYAxis ? Vector3.up * coordinateHig : Vector3.right * coordinateWid);
var axisDownStart = zeroPos - (isYAxis ? Vector3.right : Vector3.up) * axis.axisLine.width;
var axisDownEnd = axisDownStart + (isYAxis ? Vector3.up * coordinateHig : Vector3.right * coordinateWid);
var luPos = ChartHelper.GetIntersection(sp1, ep1, axisUpStart, axisUpEnd);
var ldPos = ChartHelper.GetIntersection(sp1, ep1, axisDownStart, axisDownEnd);
sp1 = smoothPoints[1];
ep1 = smoothPoints[smoothPoints.Count - 2];
var ruPos = ChartHelper.GetIntersection(sp1, ep1, axisUpStart, axisUpEnd);
var rdPos = ChartHelper.GetIntersection(sp1, ep1, axisDownStart, axisDownEnd);
Vector3 sp, ep;
if ((isYAxis && lp.x > zeroPos.x) || (!isYAxis && lp.y > zeroPos.y))
{
sp = smoothDownPoints[0];
for (int i = 1; i < smoothDownPoints.Count; i++)
{
ep = smoothDownPoints[i];
if ((isYAxis && ep.y > luPos.y) || (!isYAxis && ep.x > luPos.x))
{
var tp = isYAxis ? new Vector3(luPos.x, sp.y) : new Vector3(sp.x, luPos.y);
ChartHelper.DrawTriangle(vh, sp, luPos, tp, areaColor, areaToColor, areaToColor);
break;
}
DrawPolygonToZero(vh, sp, ep, axis, zeroPos, areaColor, areaToColor);
sp = ep;
}
sp = smoothPoints[smoothPoints.Count - 1];
for (int i = smoothPoints.Count - 2; i >= 0; i--)
{
ep = smoothPoints[i];
if ((isYAxis && ep.y > rdPos.y) || (!isYAxis && ep.x > rdPos.x))
DrawPolygonToZero(vh, sp, ep, axis, zeroPos, areaColor, areaToColor);
else
{
var tp = isYAxis ? new Vector3(rdPos.x, sp.y) : new Vector3(sp.x, rdPos.y);
ChartHelper.DrawTriangle(vh, sp, rdPos, tp, areaColor, areaToColor, areaToColor);
break;
}
sp = ep;
}
}
else
{
sp = smoothPoints[0];
for (int i = 1; i < smoothPoints.Count; i++)
{
ep = smoothPoints[i];
if ((isYAxis && ep.y > rdPos.y) || (!isYAxis && ep.x > rdPos.x))
{
var tp = isYAxis ? new Vector3(rdPos.x, sp.y) : new Vector3(sp.x, rdPos.y);
ChartHelper.DrawTriangle(vh, sp, rdPos, tp, areaColor, areaToColor, areaToColor);
break;
}
DrawPolygonToZero(vh, sp, ep, axis, zeroPos, areaColor, areaToColor);
sp = ep;
}
sp = smoothDownPoints[smoothDownPoints.Count - 1];
for (int i = smoothDownPoints.Count - 2; i >= 0; i--)
{
ep = smoothDownPoints[i];
if ((isYAxis && ep.y > luPos.y) || (!isYAxis && ep.x > luPos.x))
DrawPolygonToZero(vh, sp, ep, axis, zeroPos, areaColor, areaToColor);
else
{
var tp = isYAxis ? new Vector3(luPos.x, sp.y) : new Vector3(sp.x, luPos.y);
ChartHelper.DrawTriangle(vh, sp, luPos, tp, areaColor, areaToColor, areaToColor);
break;
}
sp = ep;
}
}
}
}
}
stPos1 = isDown ? upPos2 : dnPos;
stPos2 = isDown ? dnPos : upPos2;
lastDnPos = dnPos;
}
private void DrawPolygonToZero(VertexHelper vh, Vector3 sp, Vector3 ep, Axis axis, Vector3 zeroPos, Color areaColor, Color areaToColor)
{
float diff = 0;
if (axis is YAxis)
{
diff = sp.x < zeroPos.x || ep.x < zeroPos.x ? -axis.axisLine.width : axis.axisLine.width;
ChartHelper.DrawPolygon(vh, new Vector3(zeroPos.x + diff, sp.y), new Vector3(zeroPos.x + diff, ep.y), ep, sp, areaToColor, areaColor);
}
else
{
diff = sp.y < zeroPos.y || ep.y < zeroPos.y ? -axis.axisLine.width : axis.axisLine.width;
ChartHelper.DrawPolygon(vh, sp, ep, new Vector3(ep.x, zeroPos.y + diff), new Vector3(sp.x, zeroPos.y + diff), areaColor, areaToColor);
}
}
private List<Vector3> bezierPoints = new List<Vector3>();
private void DrawSmoothLine(VertexHelper vh, int serieIndex, Serie serie, Axis xAxis, Vector3 lp,
Vector3 np, int dataIndex, Color lineColor, Color areaColor, Color areaToColor, bool isStack, Vector3 zeroPos)
{
bool isYAxis = xAxis is YAxis;
var lineWidth = serie.lineStyle.width;
var smoothPoints = serie.GetUpSmoothList(dataIndex);
var smoothDownPoints = serie.GetDownSmoothList(dataIndex);
var fine = isStack && m_Series.IsAnyGradientSerie(serie.stack);
if (isYAxis) ChartHelper.GetBezierListVertical(ref bezierPoints, lp, np, fine, lineSmoothStyle);
else ChartHelper.GetBezierList(ref bezierPoints, lp, np, fine, lineSmoothStyle);
Vector3 start, to;
start = bezierPoints[0];
var dir = bezierPoints[1] - start;
var dir1v = Vector3.Cross(dir, Vector3.forward).normalized;
var startUp = start + (isYAxis ? Vector3.right : Vector3.up) * lineWidth;
var startDn = start - (isYAxis ? Vector3.right : Vector3.up) * lineWidth;
Vector3 toUp, toDn, tnp, tlp;
smoothPoints.Add(startUp);
smoothDownPoints.Add(startDn);
for (int k = 1; k < bezierPoints.Count; k++)
{
to = bezierPoints[k];
dir = to - start;
if (k < bezierPoints.Count - 1)
{
dir1v = Vector3.Cross(dir, Vector3.forward).normalized * (isYAxis ? -1 : 1);
var diff = dir1v * lineWidth;
toUp = to - diff;
toDn = to + diff;
if (isYAxis) ChartHelper.DrawPolygon(vh, startDn, toDn, toUp, startUp, lineColor);
else ChartHelper.DrawPolygon(vh, startUp, toUp, toDn, startDn, lineColor);
}
else
{
toUp = to + (isYAxis ? Vector3.right : Vector3.up) * lineWidth;
toDn = to - (isYAxis ? Vector3.right : Vector3.up) * lineWidth;
if (isYAxis) ChartHelper.DrawPolygon(vh, toDn, toUp, startUp, startDn, lineColor);
else ChartHelper.DrawPolygon(vh, startUp, toUp, toDn, startDn, lineColor);
}
smoothPoints.Add(toUp);
smoothDownPoints.Add(toDn);
if (serie.areaStyle.show && (serieIndex == 0 || !isStack))
{
if (isYAxis)
{
if (start.x > zeroPos.x && to.x > zeroPos.x)
{
tnp = new Vector3(zeroPos.x + xAxis.axisLine.width, toDn.y);
tlp = new Vector3(zeroPos.x + xAxis.axisLine.width, startDn.y);
ChartHelper.DrawPolygon(vh, startDn, toDn, tnp, tlp, areaColor, areaToColor);
}
else if (start.x < zeroPos.x && to.x < zeroPos.x)
{
tnp = new Vector3(zeroPos.x - xAxis.axisLine.width, toUp.y);
tlp = new Vector3(zeroPos.x - xAxis.axisLine.width, startUp.y);
ChartHelper.DrawPolygon(vh, tnp, tlp, startUp, toUp, areaToColor, areaColor);
}
}
else
{
if (start.y > zeroPos.y && to.y > zeroPos.y)
{
tnp = new Vector3(toDn.x, zeroPos.y + xAxis.axisLine.width);
tlp = new Vector3(startDn.x, zeroPos.y + xAxis.axisLine.width);
ChartHelper.DrawPolygon(vh, startDn, toDn, tnp, tlp, areaColor, areaToColor);
}
else if (start.y < zeroPos.y && to.y < zeroPos.y)
{
tnp = new Vector3(toUp.x, zeroPos.y - xAxis.axisLine.width);
tlp = new Vector3(startUp.x, zeroPos.y - xAxis.axisLine.width);
ChartHelper.DrawPolygon(vh, tlp, tnp, toUp, startUp, areaToColor, areaColor);
}
}
}
start = to;
startUp = toUp;
startDn = toDn;
}
if (serie.areaStyle.show)
{
var lastSerie = m_Series.GetLastStackSerie(serie);
if (lastSerie != null)
{
var lastSmoothPoints = lastSerie.GetUpSmoothList(dataIndex);
DrawStackArea(vh, serie, xAxis, smoothDownPoints, lastSmoothPoints, lineColor, areaColor, areaToColor);
}
}
}
private void DrawStackArea(VertexHelper vh, Serie serie, Axis axis, List<Vector3> smoothPoints,
List<Vector3> lastSmoothPoints, Color lineColor, Color areaColor, Color areaToColor)
{
if (!serie.areaStyle.show || lastSmoothPoints.Count <= 0) return;
Vector3 start, to;
var isYAxis = axis is YAxis;
var lastCount = 1;
start = smoothPoints[0];
for (int k = 1; k < smoothPoints.Count; k++)
{
to = smoothPoints[k];
Vector3 tnp, tlp;
if (k == smoothPoints.Count - 1)
{
if (k < lastSmoothPoints.Count - 1)
{
tnp = lastSmoothPoints[lastCount - 1];
ChartHelper.DrawTriangle(vh, start, to, tnp, areaColor, areaColor, areaToColor);
while (lastCount < lastSmoothPoints.Count)
{
tlp = lastSmoothPoints[lastCount];
ChartHelper.DrawTriangle(vh, tnp, to, tlp, areaToColor, areaColor, areaToColor);
lastCount++;
tnp = tlp;
}
start = to;
continue;
}
}
if (lastCount >= lastSmoothPoints.Count)
{
tlp = lastSmoothPoints[lastSmoothPoints.Count - 1];
ChartHelper.DrawTriangle(vh, to, start, tlp, areaColor, areaColor, areaToColor);
start = to;
continue;
}
tnp = lastSmoothPoints[lastCount];
var diff = isYAxis ? tnp.y - to.y : tnp.x - to.x;
if (Math.Abs(diff) < 1)
{
tlp = lastSmoothPoints[lastCount - 1];
ChartHelper.DrawPolygon(vh, start, to, tnp, tlp, areaColor, areaToColor);
lastCount++;
}
else
{
if (diff < 0)
{
tnp = lastSmoothPoints[lastCount - 1];
ChartHelper.DrawTriangle(vh, start, to, tnp, areaColor, areaColor, areaToColor);
while (diff < 0 && lastCount < lastSmoothPoints.Count)
{
tlp = lastSmoothPoints[lastCount];
ChartHelper.DrawTriangle(vh, tnp, to, tlp, areaToColor, areaColor, areaToColor);
lastCount++;
diff = isYAxis ? tlp.y - to.y : tlp.x - to.x;
tnp = tlp;
}
}
else
{
tlp = lastSmoothPoints[lastCount - 1];
ChartHelper.DrawTriangle(vh, start, to, tlp, areaColor, areaColor, areaToColor);
}
}
start = to;
}
if (lastCount < lastSmoothPoints.Count)
{
var p1 = lastSmoothPoints[lastCount - 1];
var p2 = lastSmoothPoints[lastSmoothPoints.Count - 1];
ChartHelper.DrawTriangle(vh, p1, start, p2, areaToColor, areaColor, areaToColor);
}
}
private void DrawStepLine(VertexHelper vh, int serieIndex, Serie serie, Axis axis, Vector3 lp,
Vector3 np, int dataIndex, Color lineColor, Color areaColor, Vector3 zeroPos)
{
bool isYAxis = axis is YAxis;
float lineWidth = serie.lineStyle.width;
Vector2 middle1, middle2, p1, p2, p4;
switch (serie.lineType)
{
case LineType.StepStart:
middle1 = isYAxis ? new Vector2(np.x, lp.y) : new Vector2(lp.x, np.y + lineWidth);
middle2 = isYAxis ? new Vector2(np.x, lp.y - lineWidth) : new Vector2(lp.x - lineWidth, np.y);
ChartHelper.DrawLine(vh, lp, middle1, lineWidth, lineColor);
ChartHelper.DrawLine(vh, middle2, np, lineWidth, lineColor);
if (serie.areaStyle.show)
{
p1 = isYAxis ? new Vector2(zeroPos.x, middle1.y) : new Vector2(middle1.x, zeroPos.y);
p4 = isYAxis ? new Vector2(zeroPos.x, np.y) : new Vector2(np.x, zeroPos.y);
ChartHelper.DrawPolygon(vh, p1, middle1, np, p4, areaColor);
}
break;
case LineType.StepMiddle:
middle1 = isYAxis ? new Vector2(lp.x, (lp.y + np.y) / 2 + lineWidth) : new Vector2((lp.x + np.x) / 2 + lineWidth, lp.y);
middle2 = isYAxis ? new Vector2(np.x, (lp.y + np.y) / 2 - lineWidth) : new Vector2((lp.x + np.x) / 2 - lineWidth, np.y);
p1 = isYAxis ? new Vector2(middle1.x, middle1.y - lineWidth) : new Vector2(middle1.x - lineWidth, middle1.y);
p2 = isYAxis ? new Vector2(middle2.x, middle2.y + lineWidth) : new Vector2(middle2.x + lineWidth, middle2.y);
ChartHelper.DrawLine(vh, lp, middle1, lineWidth, lineColor);
ChartHelper.DrawLine(vh, p1, p2, lineWidth, lineColor);
ChartHelper.DrawLine(vh, middle2, np, lineWidth, lineColor);
if (serie.areaStyle.show)
{
if (isYAxis)
{
ChartHelper.DrawPolygon(vh, new Vector2(zeroPos.x, lp.y), lp, middle1,
new Vector2(zeroPos.x, middle1.y), areaColor);
ChartHelper.DrawPolygon(vh, new Vector2(zeroPos.x, middle2.y + 2 * lineWidth),
new Vector2(middle2.x, middle2.y + 2 * lineWidth), np,
new Vector2(zeroPos.x, np.y), areaColor);
}
else
{
ChartHelper.DrawPolygon(vh, new Vector2(lp.x, zeroPos.y), lp, middle1,
new Vector2(middle1.x, zeroPos.y), areaColor);
ChartHelper.DrawPolygon(vh, new Vector2(middle2.x + 2 * lineWidth, zeroPos.y),
new Vector2(middle2.x + 2 * lineWidth, middle2.y), np,
new Vector2(np.x, zeroPos.y), areaColor);
}
}
break;
case LineType.StepEnd:
middle1 = isYAxis ? new Vector2(np.x, lp.y) : new Vector2(np.x + lineWidth, lp.y);
middle2 = isYAxis ? new Vector2(np.x, lp.y - serie.lineStyle.width) : new Vector2(np.x, lp.y);
ChartHelper.DrawLine(vh, lp, middle1, lineWidth, lineColor);
ChartHelper.DrawLine(vh, middle2, np, lineWidth, lineColor);
if (serie.areaStyle.show)
{
if (isYAxis)
{
ChartHelper.DrawPolygon(vh, new Vector2(zeroPos.x, lp.y), middle1,
new Vector2(np.x, np.y),
new Vector2(zeroPos.x, np.y), areaColor);
}
else
{
ChartHelper.DrawPolygon(vh, new Vector2(lp.x, zeroPos.y), lp,
new Vector2(middle1.x - lineWidth, middle1.y),
new Vector2(middle1.x - lineWidth, zeroPos.y), areaColor);
}
}
break;
}
}
}
}
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