public abstract void DrawPoint(PointStyle pointStyle, PointShape upperLeft, float radius);
private void Form1_Load(object sender, EventArgs e)
{
// Create winformCanvas
WinformCanvas winformCanvas = new WinformCanvas(500, 500);
//Draw point
PointStyle pointStyle = new PointStyle(Color.Black);
PointShape origin = new PointShape(250, 10);
winformCanvas.DrawPoint(pointStyle, origin, 5);
// Draw line
Pen pen = new Pen(Color.Blue, 3);
LineStyle lineStyle = new LineStyle(pen);
LineShape line = new LineShape(new PointShape(50, 50), new PointShape(450, 50));
winformCanvas.DrawLine(lineStyle, line);
// Draw polygon
PointShape point1 = new PointShape(50, 80);
PointShape point2 = new PointShape(100, 90);
PointShape point3 = new PointShape(200, 100);
PointShape point4 = new PointShape(250, 105);
PointShape point5 = new PointShape(300, 100);
PointShape point6 = new PointShape(350, 200);
PointShape point7 = new PointShape(250, 210);
List<PointShape> polygonPoints = new List<PointShape>();
polygonPoints.Add(point1);
polygonPoints.Add(point2);
polygonPoints.Add(point3);
polygonPoints.Add(point4);
polygonPoints.Add(point5);
polygonPoints.Add(point6);
polygonPoints.Add(point7);
PolygonShape polygon = new PolygonShape(polygonPoints);
Pen redPen = new Pen(Color.Red, 3);
LineStyle polygonStyle = new LineStyle(redPen);
winformCanvas.DrawPolygon(polygonStyle, polygon);
//Draw lines
polygonStyle.Pen.Color = Color.Yellow;
for (int i = 0; i < polygonPoints.Count; i++)
{
polygonPoints[i].Y += 150;
}
winformCanvas.DrawLine(new LineStyle(redPen, false), new LineShape(polygonPoints));
// Draw String
winformCanvas.DrawString("aaa", new Font(new FontFamily("宋体"), 10), lineStyle, point4);
// Fill
RegionStyle regionStyle = new RegionStyle(Color.Green, 2);
polygon = new PolygonShape(new PointShape(250, 300), new PointShape(250, 400), new PointShape(300, 400), new PointShape(300, 300));
winformCanvas.FillPolygon(regionStyle, polygon);
//Display on PictureBox
picResult.Image = winformCanvas.Bitmap;
winformCanvas.Save("test1.png");
}
/// <summary>
///
/// </summary>
/// <param name="pointStyle"></param>
/// <param name="upperLeft"></param>
/// <param name="radius"></param>
public override void DrawPoint(PointStyle pointStyle, PointShape upperLeft, float radius)
{
graphics.FillEllipse(new SolidBrush(pointStyle.Color), new RectangleF(upperLeft, new SizeF(radius, radius)));
}
private void btnDrawOnPdf_Click(object sender, EventArgs e)
{
// Create PdfCanvas
PdfCanvas pdfCanvas = new PdfCanvas();
//Draw point
PointStyle pointStyle = new PointStyle(Color.Black);
PointShape origin = new PointShape(250, 10);
pdfCanvas.DrawPoint(pointStyle, origin, 2);
// Draw line
Pen pen = new Pen(Color.Blue, 3);
LineStyle lineStyle = new LineStyle(pen);
LineShape line = new LineShape(new PointShape(50, 50), new PointShape(450, 50));
pdfCanvas.DrawLine(lineStyle, line);
// Draw polygon
PointShape point1 = new PointShape(50, 80);
PointShape point2 = new PointShape(100, 90);
PointShape point3 = new PointShape(200, 100);
PointShape point4 = new PointShape(250, 105);
PointShape point5 = new PointShape(300, 100);
PointShape point6 = new PointShape(350, 200);
PointShape point7 = new PointShape(250, 210);
List<PointShape> polygonPoints = new List<PointShape>();
polygonPoints.Add(point1);
polygonPoints.Add(point2);
polygonPoints.Add(point3);
polygonPoints.Add(point4);
polygonPoints.Add(point5);
polygonPoints.Add(point6);
polygonPoints.Add(point7);
PolygonShape polygon = new PolygonShape(polygonPoints);
Pen redPen = new Pen(Color.Red, 3);
LineStyle polygonStyle = new LineStyle(redPen);
pdfCanvas.DrawPolygon(polygonStyle, polygon);
//Draw lines
polygonStyle.Pen.Color = Color.Yellow;
for (int i = 0; i < polygonPoints.Count; i++)
{
polygonPoints[i].Y += 200;
}
pdfCanvas.DrawLine(new LineStyle(redPen, false), new LineShape(polygonPoints));
// Draw String
pdfCanvas.DrawString("aaa", new Font(new FontFamily("宋体"), 10), lineStyle, new PointF(250, 220));
// Fill
RegionStyle regionStyle = new RegionStyle(Color.Green, 2);
polygon = new PolygonShape(new PointShape(250, 300), new PointShape(250, 400), new PointShape(300, 400), new PointShape(300, 300));
pdfCanvas.FillPolygon(regionStyle, polygon);
// Add a page
pdfCanvas.AddPage();
// Draw polygon on second page
polygonStyle.Pen = new Pen(Color.Orange, 10);
pdfCanvas.DrawPolygon(polygonStyle, polygon);
//Save to a PDF file
string fileName = "test1.pdf";
pdfCanvas.Save(fileName);
Process.Start(fileName);
}