//使用固定elevation與azimuth
//elevation > 0, -90< azimuth < 0
private void AddTicks(Graphics g)
{
Point3[] pta = new Point3[2];
Point3 labelPt;
StringFormat sf = new StringFormat();
sf.Alignment = StringAlignment.Center;
SolidBrush tbrush = new SolidBrush(cs.TickColor);
SolidBrush abrush = new SolidBrush(cs.LabelColor);
Pen apen = new Pen(cs.AxisColor, cs.AxisThickness);
apen.DashStyle = cs.AxisStyle;
SizeF tickNumberOffset = g.MeasureString(cs.XMax.ToString(".#"), cs.TickFont);
SizeF labelOffset = g.MeasureString(cs.XLabel.ToString(), cs.LabelFont);
//int nameMappingPos = Constants.Draw3DXTickNumber / 3;
int keepIdx = 1;
//PointF namePt = new PointF();
for (float x = cs.XMin + cs.XTick; x < cs.XMax; x += cs.XTick)
{
labelPt = new Point3(x + tickNumberOffset.Height / 2
, pts[1].Y + tickNumberOffset.Width / 2
, pts[1].Z, pts[1].W);
labelPt.Transform(transMatrix, panel.Size, cs);
g.DrawString(x.ToString(".#"), cs.TickFont, tbrush
, new PointF(labelPt.X, labelPt.Y), sf);
keepIdx++;
//if (keepIdx < nameMappingPos)
//{
// keepIdx++;
//}
//else
//{
// SizeF s = g.MeasureString(x.ToString(".#"), cs.TickFont);
// namePt = new PointF(labelPt.X + s.Width + 6, labelPt.Y);
// keepIdx = -Constants.Draw3DXTickNumber;
//}
}
//Add x axis label
//pta[0] = new Point3(pts[0]);
//pta[0].Transform(transMatrix, panel.Size, cs);
//pta[1] = new Point3(pts[1]);
//pta[1].Transform(transMatrix, panel.Size, cs);
//float theta = (float)Math.Atan((pta[1].Y - pta[0].Y) / (pta[1].X - pta[0].X));
//theta = theta * 180 / (float)Math.PI;
//GraphicsState gs = g.Save();
//g.TranslateTransform(namePt.X, namePt.Y);
//g.RotateTransform(theta);
//g.DrawString(cs.XLabel, cs.LabelFont, abrush, new PointF(0, 0), sf);
//g.Restore(gs);
//Use keepIdx / 2 * cs.XTick + cs.XTick / 2 to put labelX between 2 ticks
float pos_x = (keepIdx + 1) * cs.XTick / 2.0f;
labelPt = new Point3(pos_x
, pts[1].Y + tickNumberOffset.Width
, pts[1].Z, pts[1].W);
labelPt.Transform(transMatrix, panel.Size, cs);
g.DrawString(cs.XLabel, cs.LabelFont, abrush
, new PointF(labelPt.X, labelPt.Y + labelOffset.Height / 2.0f));
//Add y ticks
tickNumberOffset = g.MeasureString(cs.YMax.ToString(".#"), cs.TickFont);
//nameMappingPos = Constants.Draw3DYTickNumber * 2 / 3;
//keepIdx = 1;
for (float y = cs.YMin + cs.YTick; y < cs.YMax; y += cs.YTick)
{
labelPt = new Point3(pts[1].X, y, pts[1].Z, pts[1].W);
labelPt.Transform(transMatrix, panel.Size, cs);
g.DrawString(y.ToString(".#"), cs.TickFont, tbrush
, new PointF(labelPt.X, labelPt.Y + 3), sf);
//if (keepIdx < nameMappingPos)
//{
// keepIdx++;
//}
//else
//{
// SizeF s = g.MeasureString(y.ToString(".#"), cs.TickFont);
// namePt = new PointF(labelPt.X, labelPt.Y + s.Height + 3);
// keepIdx = -Constants.Draw3DYTickNumber;
//}
}
//Add y axis label
labelPt = new Point3(pts[1].X - tickNumberOffset.Width, (cs.YMax + cs.YMin) / 2, pts[1].Z, pts[1].W);
labelPt.Transform(transMatrix, panel.Size, cs);
g.DrawString(cs.YLabel, cs.LabelFont, abrush
, new PointF(labelPt.X - 3, labelPt.Y + 12));
//Add z ticks
SizeF tickNumbeSize = g.MeasureString(cs.ZMax.ToString(".0"), cs.TickFont);
//nameMappingPos = Constants.Draw3DZTickNumber / 2;
//keepIdx = 1;
for (float z = cs.ZMin + cs.ZTick; z < cs.ZMax; z += cs.ZTick)
{
//labelPt = new Point3(pts[1].X - tickNumbeSize.Width, pts[2].Y - tickNumbeSize.Width, z, pts[1].W);
labelPt = new Point3(pts[1].X
, pts[2].Y
, z, pts[1].W);
labelPt.Transform(transMatrix, panel.Size, cs);
PointF pt = new PointF(labelPt.X - tickNumbeSize.Width + 6
, labelPt.Y - tickNumbeSize.Height / 2);
g.DrawString(z.ToString(".0"), cs.TickFont, tbrush
, pt, sf);
//if (keepIdx < nameMappingPos)
//{
// keepIdx++;
//}
//else
//{
// SizeF s = g.MeasureString(z.ToString(".0"), cs.TickFont);
// namePt = new PointF(pt.X - s.Width - 12, pt.Y);
// keepIdx = -Constants.Draw3DZTickNumber;
//}
}
//Add z axis label
//gs = g.Save();
//g.TranslateTransform(namePt.X, namePt.Y);
//g.RotateTransform(270);
labelPt = new Point3(pts[1].X, pts[2].Y, (cs.ZMax + cs.ZMin) / 2, pts[1].W);
labelPt.Transform(transMatrix, panel.Size, cs);
SizeF sZlabel = g.MeasureString(cs.ZLabel, cs.LabelFont);
PointF ptZlabel = new PointF(labelPt.X - tickNumbeSize.Width - sZlabel.Width - 2
, labelPt.Y - sZlabel.Height / 2);
g.DrawString(cs.ZLabel, cs.LabelFont, abrush, ptZlabel, sf);
//g.Restore(gs);
abrush = new SolidBrush(cs.TitleColor);
g.DrawString(cs.Title, cs.TitleFont, abrush
, new PointF(panel.Size.Width / 2, panel.Size.Height / 30), sf);
apen.Dispose();
abrush.Dispose();
tbrush.Dispose();
}
private void AddGrid(Graphics g)
{
using (Pen apen = new Pen(cs.GridColor))
{
apen.DashStyle = cs.GridStyle;
Point3[] ptx = new Point3[3];
Point3[] pty = new Point3[3];
Point3[] ptz = new Point3[3];
ptx[0] = new Point3(0, pts[1].Y, pts[1].Z, pts[1].W);
pty[0] = new Point3(pts[1].X, 0, pts[1].Z, pts[1].W);
ptz[0] = new Point3(pts[2].X, pts[2].Y, 0, pts[2].W);
ptx[1] = new Point3(pts[2].X, pts[2].Y, pts[1].Z, pts[1].W);
ptx[2] = new Point3(pts[2].X, pts[2].Y, pts[3].Z, pts[1].W);
pty[1] = new Point3(pts[0].X, pts[0].Y, pts[1].Z, pts[1].W);
pty[2] = new Point3(pts[0].X, pts[0].Y, pts[3].Z, pts[1].W);
ptz[1] = new Point3(pts[0].X, pts[2].Y, pts[1].Z, pts[1].W);
ptz[2] = new Point3(pts[0].X, pts[1].Y, pts[1].Z, pts[1].W);
Point3[] pta = new Point3[3];
if (cs.IsXGrid)
{
for (float x = cs.XMin; x <= cs.XMax; x += cs.XTick)
{
for (int i = 0; i < ptx.Length; i++)
{
pta[i] = new Point3(x, ptx[i].Y, ptx[i].Z, ptx[i].W);
}
for (int i = 0; i < pta.Length; i++)
{
pta[i].Transform(transMatrix, panel.Size, cs);
}
g.DrawLine(apen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
g.DrawLine(apen, pta[1].X, pta[1].Y, pta[2].X, pta[2].Y);
}
}
if (cs.IsYGrid)
{
for (float y = cs.YMin; y <= cs.YMax; y += cs.YTick)
{
for (int i = 0; i < pty.Length; i++)
{
pta[i] = new Point3(pty[i].X, y, pty[i].Z, pty[i].W);
}
for (int i = 0; i < pta.Length; i++)
{
pta[i].Transform(transMatrix, panel.Size, cs);
}
g.DrawLine(apen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
g.DrawLine(apen, pta[1].X, pta[1].Y, pta[2].X, pta[2].Y);
}
}
if (cs.IsZGrid)
{
for (float z = cs.ZMin; z <= cs.ZMax; z += cs.ZTick)
{
for (int i = 0; i < ptz.Length; i++)
{
pta[i] = new Point3(ptz[i].X, ptz[i].Y, z, ptz[i].W);
}
for (int i = 0; i < pta.Length; i++)
{
pta[i].Transform(transMatrix, panel.Size, cs);
}
g.DrawLine(apen, pta[0].X, pta[0].Y, pta[1].X, pta[1].Y);
g.DrawLine(apen, pta[1].X, pta[1].Y, pta[2].X, pta[2].Y);
}
}
}
}
