|
public DrawLine ( |
||
| aPen | ||
| startPOINT | Point | |
| endPoint | Point | |
| return | void | |
public void RunOnce(GDIRenderer aPort)
{
int cxClient = fSize.Width;
int cyClient = fSize.Height;
aPort.SaveState();
GDIPen rectPen = new GDICosmeticPen(PenStyle.Solid, RGBColor.Black, Guid.NewGuid());
GDISolidBrush rectBrush = new GDISolidBrush(RGBColor.White);
// Do a rectangle
Rectangle rect = Rectangle.FromLTRB(cxClient / 8, cyClient / 8,
(7 * cxClient / 8), (7 * cyClient / 8));
aPort.FillRectangle(rectBrush, rect.Left, rect.Top, rect.Width, rect.Height);
aPort.DrawRectangle(rectPen, rect.Left, rect.Top, rect.Width, rect.Height);
// Now do a couple of lines using a dash/dot/dot pen
GDIPen aPen = new GDIPen(PenType.Cosmetic, PenStyle.DashDotDot, PenJoinStyle.Round, PenEndCap.Round, RGBColor.Black, 1, Guid.NewGuid());
aPort.DrawLine(aPen, new Point(0, 0), new Point(cxClient, cyClient));
aPort.DrawLine(aPen, new Point(0, cyClient), new Point(cxClient, 0));
// Now an ellipse
aPort.DrawEllipse(aPen, rect);
// Last, a rounded rectangle
Rectangle rRect = Rectangle.FromLTRB(cxClient / 4, cyClient / 4,
3 * cxClient / 4, 3 * cyClient / 4);
aPort.DrawRoundRect(aPen, rRect, cxClient / 4, cyClient / 4);
aPort.ResetState();
}
public void RunOnce(GDIRenderer aPort)
{
aPort.SaveState();
// Orient the axis with origin at upper
// left hand corner, y-axis positive going down the screen
aPort.SetMappingMode(MappingModes.Text);
// Draw the curve
aPort.DrawBeziers(fBlackPen, fFigure);
// Draw the control lines
// Control line 1
aPort.DrawLine(fRedPen, new Point(fFigure[0].X, fFigure[0].Y), new Point(fFigure[1].X, fFigure[1].Y));
// Control line 2
aPort.DrawLine(fRedPen, new Point(fFigure[2].X, fFigure[2].Y), new Point(fFigure[3].X, fFigure[3].Y));
aPort.Flush();
aPort.ResetState();
}
public void RunOnce(GDIRenderer aPort)
{
int i;
int cxClient = fSize.Width;
int cyClient = fSize.Height;
Point[] points = new Point[fNumSegments];
aPort.SaveState();
GDIPen redPen = new GDIPen(RGBColor.Red);
aPort.DrawLine(redPen, new Point(0, cyClient/2), new Point(cxClient, cyClient / 2));
GDIPen blackPen = new GDIPen(RGBColor.Black);
for (i = 0; i < fNumSegments; i++)
{
points[i].X = i * cxClient / fNumSegments;
points[i].Y = (int)(((double)cyClient/2.0f)*(1.0f-Math.Sin(Math.PI*2.0f*(double)i/(double)fNumSegments)));
}
aPort.DrawLines(blackPen, points);
aPort.ResetState();
}
