public Chart3D()
{
InitializeComponent();
this.SetStyle(ControlStyles.ResizeRedraw, true);
cs = new ChartStyle(this);
cs2d = new ChartStyle2D(this);
dc = new DrawChart(this);
ds = new DataSeries();
ax = new Axes(this);
va = new ViewAngle(this);
gd = new Grid(this);
cl = new ChartLabels(this);
gd.GridStyle.LineColor = Color.LightGray;
this.BackColor = Color.White;
cm = new ColorMap();
dc.CMap = cm.Jet();
}
private void AddSlice(Graphics g, DataSeries ds, ChartStyle cs,
ChartStyle2D cs2d, Axes ax, ViewAngle va, ChartLabels cl)
{
Pen aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
SolidBrush aBrush = new SolidBrush(Color.Black);
Point4[, ,] pts = ds.Point4Array;
PointF[] pta = new PointF[4];
Matrix3 m = Matrix3.AzimuthElevation(va.Elevation, va.Azimuth);
// Find the minumum and maximum v values:
float vmin = ds.VDataMin();
float vmax = ds.VDataMax();
// Perform transformation on points:
for (int i = 0; i < pts.GetLength(0); i++)
{
for (int j = 0; j < pts.GetLength(1); j++)
{
for (int k = 0; k < pts.GetLength(2); k++)
{
pts[i, j, k].point3.Transform(m, chart3d, ax, cs, cl);
pts[i, j, k].point3.Z = pts[i, j, k].V;
}
}
}
// Select slice:
if (XYZSlice == SliceEnum.XSlice)
{
if (SliceLocation < ax.XMin)
SliceLocation = ax.XMin;
if (SliceLocation > ax.XMax)
SliceLocation = ax.XMax;
int nfix = (int)((SliceLocation - ds.XDataMin) / ds.XSpacing) + 1;
for (int j = 0; j < pts.GetLength(1) - 1; j++)
{
for (int k = 0; k < pts.GetLength(2) - 1; k++)
{
pta[0] = new PointF(pts[nfix, j, k].point3.X, pts[nfix, j, k].point3.Y);
pta[1] = new PointF(pts[nfix, j + 1, k].point3.X, pts[nfix, j + 1, k].point3.Y);
pta[2] = new PointF(pts[nfix, j + 1, k + 1].point3.X, pts[nfix, j + 1, k + 1].point3.Y);
pta[3] = new PointF(pts[nfix, j, k + 1].point3.X, pts[nfix, j, k + 1].point3.Y);
Color color = AddColor(cs, pts[nfix, j, k].point3, vmin, vmax, ax, va, cl);
aBrush = new SolidBrush(color);
g.FillPolygon(aBrush, pta);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pta);
}
}
}
}
else if (XYZSlice == SliceEnum.YSlice)
{
if (SliceLocation < ax.YMin)
SliceLocation = ax.YMin;
if (SliceLocation > ax.YMax)
SliceLocation = ax.YMax;
int nfix = (int)((SliceLocation - ds.YDataMin) / ds.YSpacing) + 1;
for (int i = 0; i < pts.GetLength(0) - 1; i++)
{
for (int k = 0; k < pts.GetLength(2) - 1; k++)
{
pta[0] = new PointF(pts[i, nfix, k].point3.X, pts[i, nfix, k].point3.Y);
pta[1] = new PointF(pts[i + 1, nfix, k].point3.X, pts[i + 1, nfix, k].point3.Y);
pta[2] = new PointF(pts[i + 1, nfix, k + 1].point3.X, pts[i + 1, nfix, k + 1].point3.Y);
pta[3] = new PointF(pts[i, nfix, k + 1].point3.X, pts[i, nfix, k + 1].point3.Y);
Color color = AddColor(cs, pts[i, nfix, k].point3, vmin, vmax, ax, va, cl);
aBrush = new SolidBrush(color);
g.FillPolygon(aBrush, pta);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pta);
}
}
}
}
else if (XYZSlice == SliceEnum.ZSlice)
{
if (SliceLocation < ax.ZMin)
SliceLocation = ax.ZMin;
if (SliceLocation > ax.ZMax)
SliceLocation = ax.ZMax;
int nfix = (int)((SliceLocation - ds.ZZDataMin) / ds.ZSpacing) + 1;
for (int i = 0; i < pts.GetLength(0) - 1; i++)
{
for (int j = 0; j < pts.GetLength(1) - 1; j++)
{
pta[0] = new PointF(pts[i, j, nfix].point3.X, pts[i, j, nfix].point3.Y);
pta[1] = new PointF(pts[i + 1, j, nfix].point3.X, pts[i + 1, j, nfix].point3.Y);
pta[2] = new PointF(pts[i + 1, j + 1, nfix].point3.X, pts[i + 1, j + 1, nfix].point3.Y);
pta[3] = new PointF(pts[i, j + 1, nfix].point3.X, pts[i, j + 1, nfix].point3.Y);
Color color = AddColor(cs, pts[i, j, nfix].point3, vmin, vmax, ax, va, cl);
aBrush = new SolidBrush(color);
g.FillPolygon(aBrush, pta);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pta);
}
}
}
}
aPen.Dispose();
aBrush.Dispose();
}
private void AddBar3D(Graphics g, DataSeries ds, ChartStyle cs,
ChartStyle2D cs2d, Axes ax, ViewAngle va, ChartLabels cl)
{
Matrix3 m = Matrix3.AzimuthElevation(va.Elevation, va.Azimuth);
PointF[] pt = new PointF[4];
Point3[,] pts = ds.PointArray;
// Find the minumum and maximum z values:
float zmin = ds.ZDataMin();
float zmax = ds.ZDataMax();
// Check parameters:
float xlength = ds.BarStyle.XLength;
if (xlength <= 0)
xlength = 0.1f * ds.XSpacing;
else if (xlength > 0.5f)
xlength = 0.5f * ds.XSpacing;
else
xlength = ds.BarStyle.XLength * ds.XSpacing;
float ylength = ds.BarStyle.YLength;
if (ylength <= 0)
ylength = 0.1f * ds.YSpacing;
else if (ylength > 0.5f)
ylength = 0.5f * ds.YSpacing;
else
ylength = ds.BarStyle.YLength * ds.YSpacing;
float zorigin = ds.BarStyle.ZOrigin;
// Draw 3D bars:
for (int i = 0; i < pts.GetLength(0) - 1; i++)
{
for (int j = 0; j < pts.GetLength(1) - 1; j++)
{
int ii = i;
int jj = j;
if (va.Azimuth >= -180 && va.Azimuth < -90)
{
ii = pts.GetLength(0) - 2 - i;
jj = j;
}
else if (va.Azimuth >= -90 && va.Azimuth < 0)
{
ii = pts.GetLength(0) - 2 - i;
jj = pts.GetLength(1) - 2 - j;
}
else if (va.Azimuth >= 0 && va.Azimuth < 90)
{
ii = i;
jj = pts.GetLength(1) - 2 - j;
}
else if (va.Azimuth >= 90 && va.Azimuth <= 180)
{
ii = i;
jj = j;
}
DrawBar(g, ds, cs, m, pts[ii, jj], xlength,
ylength, zorigin, zmax, zmin, ax, va, cl);
}
}
}
private void AddContour3D(Graphics g, DataSeries ds, ChartStyle cs,
ChartStyle2D cs2d, Axes ax, ViewAngle va, ChartLabels cl)
{
Pen aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
Point3[] pta = new Point3[2];
Point3[,] pts = ds.PointArray;
Matrix3 m = Matrix3.AzimuthElevation(va.Elevation, va.Azimuth);
// Find the minumum and maximum z values:
float zmin = ds.ZDataMin();
float zmax = ds.ZDataMax();
float[] zlevels = new float[numberContours];
for (int i = 0; i < numberContours; i++)
{
zlevels[i] = zmin + i * (zmax - zmin) / (numberContours - 1);
}
int i0, i1, i2, j0, j1, j2;
float zratio = 1;
// Draw contour on the XY plane:
for (int i = 0; i < pts.GetLength(0) - 1; i++)
{
for (int j = 0; j < pts.GetLength(1) - 1; j++)
{
for (int k = 0; k < numberContours; k++)
{
if (IsColorMap && ChartType != ChartTypeEnum.FillContour &&
ChartType != ChartTypeEnum.SurfaceFillContour)
{
Color color = AddColor(cs, pts[i, j], zmin, zmax, ax, va, cl);
aPen = new Pen(color, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
}
// Left triangle:
i0 = i;
j0 = j;
i1 = i;
j1 = j + 1;
i2 = i + 1;
j2 = j + 1;
if ((zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i1, j1].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i1, j1].Z) &&
(zlevels[k] >= pts[i1, j1].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i1, j1].Z && zlevels[k] >= pts[i2, j2].Z))
{
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i1, j1].Z - pts[i0, j0].Z);
pta[0] = new Point3(pts[i0, j0].X, (1 - zratio) *
pts[i0, j0].Y + zratio * pts[i1, j1].Y, ax.ZMin, 1);
zratio = (zlevels[k] - pts[i1, j1].Z) /
(pts[i2, j2].Z - pts[i1, j1].Z);
pta[1] = new Point3((1 - zratio) * pts[i1, j1].X +
zratio * pts[i2, j2].X, pts[i1, j1].Y, ax.ZMin, 1);
pta[0].Transform(m, chart3d, ax, cs, cl);
pta[1].Transform(m, chart3d, ax, cs, cl);
g.DrawLine(aPen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
}
else if ((zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i2, j2].Z) &&
(zlevels[k] >= pts[i1, j1].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i1, j1].Z && zlevels[k] >= pts[i2, j2].Z))
{
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i2, j2].Z - pts[i0, j0].Z);
pta[0] = new Point3((1 - zratio) * pts[i0, j0].X +
zratio * pts[i2, j2].X, (1 - zratio) * pts[i0, j0].Y +
zratio * pts[i2, j2].Y, ax.ZMin, 1);
zratio = (zlevels[k] - pts[i1, j1].Z) /
(pts[i2, j2].Z - pts[i1, j1].Z);
pta[1] = new Point3((1 - zratio) * pts[i1, j1].X +
zratio * pts[i2, j2].X, pts[i1, j1].Y, ax.ZMin, 1);
pta[0].Transform(m, chart3d, ax, cs, cl);
pta[1].Transform(m, chart3d, ax, cs, cl);
g.DrawLine(aPen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
}
else if ((zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i1, j1].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i1, j1].Z) &&
(zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i2, j2].Z))
{
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i1, j1].Z - pts[i0, j0].Z);
pta[0] = new Point3(pts[i0, j0].X, (1 - zratio) *
pts[i0, j0].Y + zratio * pts[i1, j1].Y, ax.ZMin, 1);
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i2, j2].Z - pts[i0, j0].Z);
pta[1] = new Point3(pts[i0, j0].X * (1 - zratio) +
pts[i2, j2].X * zratio, pts[i0, j0].Y * (1 - zratio) +
pts[i2, j2].Y * zratio, ax.ZMin, 1);
pta[0].Transform(m, chart3d, ax, cs, cl);
pta[1].Transform(m, chart3d, ax, cs, cl);
g.DrawLine(aPen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
}
// right triangle:
i0 = i;
j0 = j;
i1 = i + 1;
j1 = j;
i2 = i + 1;
j2 = j + 1;
if ((zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i1, j1].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i1, j1].Z) &&
(zlevels[k] >= pts[i1, j1].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i1, j1].Z && zlevels[k] >= pts[i2, j2].Z))
{
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i1, j1].Z - pts[i0, j0].Z);
pta[0] = new Point3(pts[i0, j0].X * (1 - zratio) +
pts[i1, j1].X * zratio, pts[i0, j0].Y, ax.ZMin, 1);
zratio = (zlevels[k] - pts[i1, j1].Z) /
(pts[i2, j2].Z - pts[i1, j1].Z);
pta[1] = new Point3(pts[i1, j1].X, pts[i1, j1].Y *
(1 - zratio) + pts[i2, j2].Y * zratio, ax.ZMin, 1);
pta[0].Transform(m, chart3d, ax, cs, cl);
pta[1].Transform(m, chart3d, ax, cs, cl);
g.DrawLine(aPen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
}
else if ((zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i2, j2].Z) &&
(zlevels[k] >= pts[i1, j1].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i1, j1].Z && zlevels[k] >= pts[i2, j2].Z))
{
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i2, j2].Z - pts[i0, j0].Z);
pta[0] = new Point3(pts[i0, j0].X * (1 - zratio) +
pts[i2, j2].X * zratio, pts[i0, j0].Y * (1 - zratio) +
pts[i2, j2].Y * zratio, ax.ZMin, 1);
zratio = (zlevels[k] - pts[i1, j1].Z) /
(pts[i2, j2].Z - pts[i1, j1].Z);
pta[1] = new Point3(pts[i1, j1].X, pts[i1, j1].Y *
(1 - zratio) + pts[i2, j2].Y * zratio, ax.ZMin, 1);
pta[0].Transform(m, chart3d, ax, cs, cl);
pta[1].Transform(m, chart3d, ax, cs, cl);
g.DrawLine(aPen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
}
else if ((zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i1, j1].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i1, j1].Z) &&
(zlevels[k] >= pts[i0, j0].Z && zlevels[k] < pts[i2, j2].Z ||
zlevels[k] < pts[i0, j0].Z && zlevels[k] >= pts[i2, j2].Z))
{
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i1, j1].Z - pts[i0, j0].Z);
pta[0] = new Point3(pts[i0, j0].X * (1 - zratio) +
pts[i1, j1].X * zratio, pts[i0, j0].Y, ax.ZMin, 1);
zratio = (zlevels[k] - pts[i0, j0].Z) /
(pts[i2, j2].Z - pts[i0, j0].Z);
pta[1] = new Point3(pts[i0, j0].X * (1 - zratio) +
pts[i2, j2].X * zratio, pts[i0, j0].Y * (1 - zratio) +
pts[i2, j2].Y * zratio, ax.ZMin, 1);
pta[0].Transform(m, chart3d, ax, cs, cl);
pta[1].Transform(m, chart3d, ax, cs, cl);
g.DrawLine(aPen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
}
}
}
}
aPen.Dispose();
}
public void AddColorBar(Graphics g, DataSeries ds, ChartStyle cs,
ChartStyle2D cs2d, Axes ax, ViewAngle va, ChartLabels cl)
{
if (cs.IsColorBar && IsColorMap)
{
Pen aPen = new Pen(Color.Black, 1);
SolidBrush aBrush = new SolidBrush(cl.TickFontColor);
StringFormat sFormat = new StringFormat();
sFormat.Alignment = StringAlignment.Near;
SizeF size = g.MeasureString("A", cl.TickFont);
int x, y, width, height;
Point3[] pts = new Point3[64];
PointF[] pta = new PointF[4];
float zmin, zmax;
if (ChartType == ChartTypeEnum.Slice)
{
zmin = ds.VDataMin();
zmax = ds.VDataMax();
}
else
{
zmin = ds.ZDataMin();
zmax = ds.ZDataMax();
}
float dz = (zmax - zmin) / 63;
if (ChartType == ChartTypeEnum.Contour ||
ChartType == ChartTypeEnum.FillContour ||
ChartType == ChartTypeEnum.XYColor)
{
x = 5 * cs2d.ChartArea.Width / 6;
y = cs2d.PlotArea.Y;
width = cs2d.ChartArea.Width / 25;
height = cs2d.PlotArea.Height;
// Add color bar:
for (int i = 0; i < 64; i++)
{
pts[i] = new Point3(x, y, zmin + i * dz, 1);
}
for (int i = 0; i < 63; i++)
{
Color color = AddColor(cs, pts[i], zmin, zmax, ax, va, cl);
aBrush = new SolidBrush(color);
float y1 = y + height - (pts[i].Z - zmin) * height / (zmax - zmin);
float y2 = y + height - (pts[i + 1].Z - zmin) * height / (zmax - zmin);
pta[0] = new PointF(x, y2);
pta[1] = new PointF(x + width, y2);
pta[2] = new PointF(x + width, y1);
pta[3] = new PointF(x, y1);
g.FillPolygon(aBrush, pta);
}
g.DrawRectangle(aPen, x, y, width, height);
// Add ticks and labels to the color bar:
float ticklength = 0.1f * width;
for (float z = zmin; z <= zmax; z = z + (zmax - zmin) / 6)
{
float yy = y + height - (z - zmin) * height / (zmax - zmin);
g.DrawLine(aPen, x, yy, x + ticklength, yy);
g.DrawLine(aPen, x + width, yy, x + width - ticklength, yy);
g.DrawString((Math.Round(z, 2)).ToString(), cl.TickFont, Brushes.Black,
new PointF(x + width + 5, yy - size.Height / 2), sFormat);
}
}
else
{
x = 5 * cs2d.ChartArea.Width / 6;
y = cs2d.ChartArea.Height / 10;
width = cs2d.ChartArea.Width / 25;
height = 8 * cs2d.ChartArea.Height / 10;
// Add color bar:
for (int i = 0; i < 64; i++)
{
pts[i] = new Point3(x, y, zmin + i * dz, 1);
}
for (int i = 0; i < 63; i++)
{
Color color = AddColor(cs, pts[i], zmin, zmax, ax, va, cl);
aBrush = new SolidBrush(color);
float y1 = y + height - (pts[i].Z - zmin) * height / (zmax - zmin);
float y2 = y + height - (pts[i + 1].Z - zmin) * height / (zmax - zmin);
pta[0] = new PointF(x, y2);
pta[1] = new PointF(x + width, y2);
pta[2] = new PointF(x + width, y1);
pta[3] = new PointF(x, y1);
g.FillPolygon(aBrush, pta);
}
g.DrawRectangle(aPen, x, y, width, height);
// Add ticks and labels to the color bar:
float ticklength = 0.1f * width;
for (float z = zmin; z <= zmax; z = z + (zmax - zmin) / 6)
{
float yy = y + height - (z - zmin) * height / (zmax - zmin);
g.DrawLine(aPen, x, yy, x + ticklength, yy);
g.DrawLine(aPen, x + width, yy, x + width - ticklength, yy);
g.DrawString((Math.Round(z, 2)).ToString(), cl.TickFont, Brushes.Black,
new PointF(x + width + 5, yy - size.Height / 2), sFormat);
}
}
}
}
public void AddChart(Graphics g, DataSeries ds, ChartStyle cs,
ChartStyle2D cs2d, Axes ax, ViewAngle va, ChartLabels cl)
{
switch (ChartType)
{
case ChartTypeEnum.Line:
AddLine(g, ds, cs, ax, va, cl);
break;
case ChartTypeEnum.Mesh:
AddMesh(g, ds, cs, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.MeshZ:
AddMeshZ(g, ds, cs, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.Waterfall:
AddWaterfall(g, ds, cs, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.Surface:
AddSurface(g, ds, cs, cs2d, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.XYColor:
AddXYColor(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.Contour:
AddContour(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.FillContour:
AddXYColor(g, ds, cs, cs2d, ax, va, cl);
AddContour(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.MeshContour:
AddContour3D(g, ds, cs, cs2d, ax, va, cl);
AddMesh(g, ds, cs, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.SurfaceContour:
AddContour3D(g, ds, cs, cs2d, ax, va, cl);
AddSurface(g, ds, cs, cs2d, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.SurfaceFillContour:
AddXYColor3D(g, ds, cs, cs2d, ax, va, cl);
AddContour3D(g, ds, cs, cs2d, ax, va, cl);
AddSurface(g, ds, cs, cs2d, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.Slice:
AddSlice(g, ds, cs, cs2d, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
case ChartTypeEnum.Bar3D:
AddBar3D(g, ds, cs, cs2d, ax, va, cl);
AddColorBar(g, ds, cs, cs2d, ax, va, cl);
break;
}
}
private void Interp(Graphics g, ChartStyle cs, ChartStyle2D cs2d, Matrix3 m,
Point3[] pta, float zmin, float zmax, int flag, Axes ax,
ViewAngle va, ChartLabels cl)
{
SolidBrush aBrush = new SolidBrush(Color.Black);
PointF[] points = new PointF[4];
int npoints = NumberInterp;
Point3[,] pts = new Point3[npoints + 1, npoints + 1];
Point3[,] pts1 = new Point3[npoints + 1, npoints + 1];
float x0 = pta[0].X;
float y0 = pta[0].Y;
float x1 = pta[2].X;
float y1 = pta[2].Y;
float dx = (x1 - x0) / npoints;
float dy = (y1 - y0) / npoints;
float C00 = pta[0].Z;
float C10 = pta[3].Z;
float C11 = pta[2].Z;
float C01 = pta[1].Z;
float x, y, C;
Color color;
if (flag == 1) // For Surface chart
{
for (int i = 0; i <= npoints; i++)
{
x = x0 + i * dx;
for (int j = 0; j <= npoints; j++)
{
y = y0 + j * dy;
C = (y1 - y) * ((x1 - x) * C00 +
(x - x0) * C10) / (x1 - x0) / (y1 - y0) +
(y - y0) * ((x1 - x) * C01 +
(x - x0) * C11) / (x1 - x0) / (y1 - y0);
pts[i, j] = new Point3(x, y, C, 1);
pts[i, j].Transform(m, chart3d, ax, cs, cl);
}
}
for (int i = 0; i < npoints; i++)
{
for (int j = 0; j < npoints; j++)
{
color = AddColor(cs, pts[i, j], zmin, zmax, ax, va, cl);
aBrush = new SolidBrush(color);
points[0] = new PointF(pts[i, j].X, pts[i, j].Y);
points[1] = new PointF(pts[i + 1, j].X, pts[i + 1, j].Y);
points[2] = new PointF(pts[i + 1, j + 1].X, pts[i + 1, j + 1].Y);
points[3] = new PointF(pts[i, j + 1].X, pts[i, j + 1].Y);
g.FillPolygon(aBrush, points);
aBrush.Dispose();
}
}
}
else if (flag == 2) // For XYColor chart
{
for (int i = 0; i <= npoints; i++)
{
x = x0 + i * dx;
for (int j = 0; j <= npoints; j++)
{
y = y0 + j * dy;
C = (y1 - y) * ((x1 - x) * C00 +
(x - x0) * C10) / (x1 - x0) / (y1 - y0) +
(y - y0) * ((x1 - x) * C01 +
(x - x0) * C11) / (x1 - x0) / (y1 - y0);
pts[i, j] = new Point3(x, y, C, 1);
}
}
for (int i = 0; i < npoints; i++)
{
for (int j = 0; j < npoints; j++)
{
color = AddColor(cs, pts[i, j], zmin, zmax, ax, va, cl);
aBrush = new SolidBrush(color);
points[0] = cs2d.Point2D(new PointF(pts[i, j].X, pts[i, j].Y), ax);
points[1] = cs2d.Point2D(new PointF(pts[i + 1, j].X, pts[i + 1, j].Y), ax);
points[2] = cs2d.Point2D(new PointF(pts[i + 1, j + 1].X, pts[i + 1, j + 1].Y), ax);
points[3] = cs2d.Point2D(new PointF(pts[i, j + 1].X, pts[i, j + 1].Y), ax);
g.FillPolygon(aBrush, points);
aBrush.Dispose();
}
}
}
else if (flag == 3) // For XYColor3D chart
{
for (int i = 0; i <= npoints; i++)
{
x = x0 + i * dx;
for (int j = 0; j <= npoints; j++)
{
y = y0 + j * dy;
C = (y1 - y) * ((x1 - x) * C00 +
(x - x0) * C10) / (x1 - x0) / (y1 - y0) +
(y - y0) * ((x1 - x) * C01 +
(x - x0) * C11) / (x1 - x0) / (y1 - y0);
pts1[i, j] = new Point3(x, y, C, 1);
pts[i, j] = new Point3(x, y, ax.ZMin, 1);
pts[i, j].Transform(m, chart3d, ax, cs, cl);
}
}
for (int i = 0; i < npoints; i++)
{
for (int j = 0; j < npoints; j++)
{
color = AddColor(cs, pts1[i, j], zmin, zmax, ax, va, cl);
aBrush = new SolidBrush(color);
points[0] = new PointF(pts[i, j].X, pts[i, j].Y);
points[1] = new PointF(pts[i + 1, j].X, pts[i + 1, j].Y);
points[2] = new PointF(pts[i + 1, j + 1].X, pts[i + 1, j + 1].Y);
points[3] = new PointF(pts[i, j + 1].X, pts[i, j + 1].Y);
g.FillPolygon(aBrush, points);
aBrush.Dispose();
}
}
}
}
private void AddXYColor3D(Graphics g, DataSeries ds, ChartStyle cs,
ChartStyle2D cs2d, Axes ax, ViewAngle va, ChartLabels cl)
{
Pen aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
SolidBrush aBrush = new SolidBrush(Color.White);
PointF[] pta = new PointF[4];
Point3[,] pts = ds.PointArray;
Point3[,] pts1 = new Point3[pts.GetLength(0), pts.GetLength(1)];
Point3[,] pts2 = new Point3[pts.GetLength(0), pts.GetLength(1)];
Matrix3 m = Matrix3.AzimuthElevation(va.Elevation, va.Azimuth);
// Find the minumum and maximum z values:
float zmin = ds.ZDataMin();
float zmax = ds.ZDataMax();
// Perform transformation on points:
for (int i = 0; i < pts.GetLength(0); i++)
{
for (int j = 0; j < pts.GetLength(1); j++)
{
// Make a deep copy the points array:
pts1[i, j] = new Point3(pts[i, j].X, pts[i, j].Y, ax.ZMin, 1);
pts2[i, j] = new Point3(pts[i, j].X, pts[i, j].Y, ax.ZMin, 1);
pts1[i, j].Transform(m, chart3d, ax, cs, cl);
}
}
// Draw surface on the XY plane:
if (!IsInterp)
{
for (int i = 0; i < pts.GetLength(0) - 1; i++)
{
for (int j = 0; j < pts.GetLength(1) - 1; j++)
{
pta[0] = new PointF(pts1[i, j].X, pts1[i, j].Y);
pta[1] = new PointF(pts1[i, j + 1].X, pts1[i, j + 1].Y);
pta[2] = new PointF(pts1[i + 1, j + 1].X, pts1[i + 1, j + 1].Y);
pta[3] = new PointF(pts1[i + 1, j].X, pts1[i + 1, j].Y);
Color color = AddColor(cs, pts[i, j], zmin, zmax, ax, va, cl);
aBrush = new SolidBrush(color);
g.FillPolygon(aBrush, pta);
if (ds.LineStyle.IsVisible)
{
//g.DrawPolygon(aPen, pta);
}
}
}
}
// Draw refined surface:
else if (IsInterp)
{
for (int i = 0; i < pts1.GetLength(0) - 1; i++)
{
for (int j = 0; j < pts1.GetLength(1) - 1; j++)
{
Point3[] points = new Point3[4];
points[0] = pts[i, j];
points[1] = pts[i, j + 1];
points[2] = pts[i + 1, j + 1];
points[3] = pts[i + 1, j];
Interp(g, cs, cs2d, m, points, zmin, zmax, 3, ax, va, cl);
}
}
}
}
private void AddXYColor(Graphics g, DataSeries ds, ChartStyle cs,
ChartStyle2D cs2d, Axes ax, ViewAngle va, ChartLabels cl)
{
Pen aPen = new Pen(ds.LineStyle.LineColor, ds.LineStyle.Thickness);
aPen.DashStyle = ds.LineStyle.Pattern;
SolidBrush aBrush = new SolidBrush(Color.White);
PointF[] pta = new PointF[4];
Point3[,] pts = ds.PointArray;
Matrix3 m = new Matrix3();
// Find the minumum and maximum z values:
float zmin = ds.ZDataMin();
float zmax = ds.ZDataMax();
// Draw surface on the XY plane:
if (!IsInterp)
{
for (int i = 0; i < pts.GetLength(0) - 1; i++)
{
for (int j = 0; j < pts.GetLength(1) - 1; j++)
{
pta[0] = cs2d.Point2D(new PointF(pts[i, j].X, pts[i, j].Y), ax);
pta[1] = cs2d.Point2D(new PointF(pts[i, j + 1].X, pts[i, j + 1].Y), ax);
pta[2] = cs2d.Point2D(new PointF(pts[i + 1, j + 1].X, pts[i + 1, j + 1].Y), ax);
pta[3] = cs2d.Point2D(new PointF(pts[i + 1, j].X, pts[i + 1, j].Y), ax);
Color color = AddColor(cs, pts[i, j], zmin, zmax, ax, va, cl);
aBrush = new SolidBrush(color);
g.FillPolygon(aBrush, pta);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pta);
}
}
}
}
// Draw refined surface:
else if (IsInterp)
{
for (int i = 0; i < pts.GetLength(0) - 1; i++)
{
for (int j = 0; j < pts.GetLength(1) - 1; j++)
{
Point3[] points = new Point3[4];
points[0] = pts[i, j];
points[1] = pts[i, j + 1];
points[2] = pts[i + 1, j + 1];
points[3] = pts[i + 1, j];
Interp(g, cs, cs2d, m, points, zmin, zmax, 2, ax, va, cl);
pta[0] = cs2d.Point2D(new PointF(pts[i, j].X, pts[i, j].Y), ax);
pta[1] = cs2d.Point2D(new PointF(pts[i, j + 1].X, pts[i, j + 1].Y), ax);
pta[2] = cs2d.Point2D(new PointF(pts[i + 1, j + 1].X, pts[i + 1, j + 1].Y), ax);
pta[3] = cs2d.Point2D(new PointF(pts[i + 1, j].X, pts[i + 1, j].Y), ax);
if (ds.LineStyle.IsVisible)
{
g.DrawPolygon(aPen, pta);
}
}
}
}
}