A flexible charting library for .NET

using System;
using System.Drawing;
using System.Drawing.Drawing2D;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using GDIDB;
using ZedGraph;

namespace ZedGraphTest
{
	/// <summary>
	/// Summary description for Form1.
	/// </summary>
	public class Form1 : System.Windows.Forms.Form
	{
		/// <summary>
		/// Required designer variable.
		/// </summary>
		private System.ComponentModel.Container components = null;
		private DBGraphics memGraphics;

		/// <summary>
		/// 
		/// </summary>
		public Form1()
		{
			//
			// Required for Windows Form Designer support
			//
			InitializeComponent();
			memGraphics = new  DBGraphics();
		}

		/// <summary>
		/// Clean up any resources being used.
		/// </summary>
		protected override void Dispose( bool disposing )
		{
			if( disposing )
			{
				if (components != null) 
				{
					components.Dispose();
				}
			}
			base.Dispose( disposing );
		}

		#region Windows Form Designer generated code
		/// <summary>
		/// Required method for Designer support - do not modify
		/// the contents of this method with the code editor.
		/// </summary>
		private void InitializeComponent()
		{
			// 
			// Form1
			// 
			this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
			this.ClientSize = new System.Drawing.Size(640, 438);
			this.Name = "Form1";
			this.Text = "Form1";
			this.Resize += new System.EventHandler(this.Form1_Resize);
			this.Load += new System.EventHandler(this.Form1_Load);
			this.Paint += new System.Windows.Forms.PaintEventHandler(this.Form1_Paint);

		}
		#endregion

		/// <summary>
		/// The main entry point for the application.
		/// </summary>
		[STAThread]
		static void Main() 
		{
			Application.Run(new Form1());
		}

		/// <summary>
		/// 
		/// </summary>
		protected GraphPane myPane;

		private void Form1_Load(object sender, System.EventArgs e)
		{
			memGraphics.CreateDoubleBuffer(this.CreateGraphics(),
				this.ClientRectangle.Width, this.ClientRectangle.Height);

			myPane = new GraphPane( new Rectangle( 10, 10, 10, 10 ),
				"Wacky Widget Company\nProduction Report",
				"Time, Days\n(Since Plant Construction Startup)",
				"Widget Production\n(units/hour)" );
			SetSize();

			double[] x = { 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 };
			double[] y = { 20, 10, 50, 25, 35, 75, 90, 40, 33, 50 };
			CurveItem curve;
			curve = myPane.AddCurve( "Larry", x, y, Color.Green, SymbolType.Circle );
			curve.Line.Width = 1.5F;
			curve.Line.Fill = new Fill( Color.White, Color.FromArgb( 60, 190, 50), 90F );
			curve.Line.IsSmooth = true;
			curve.Line.SmoothTension = 0.6F;
			curve.Symbol.Fill = new Fill( Color.White );
			curve.Symbol.Size = 12;
			
			double[] x3 = { 150, 250, 400, 520, 780, 940 };
			double[] y3 = { 5.2, 49.0, 33.8, 88.57, 99.9, 36.8 };
			curve = myPane.AddCurve( "Moe", x3, y3, Color.FromArgb( 200, 55, 135), SymbolType.Triangle );
			curve.Line.Width = 1.5F;
			//curve.Line.IsSmooth = true;
			curve.Symbol.Fill = new Fill( Color.White );
			curve.Line.Fill = new Fill( Color.White, Color.FromArgb( 230, 145, 205), 90F );
			curve.Symbol.Size = 12;
			
			double[] x2 = { 100, 200, 300, 400, 500, 600, 700, 800, 900, 1000 };
			double[] y2 = { 40, 60, 70, 80, 100, 110, 113, 105, 95, 75 };
			curve = myPane.AddBar( "Curly", x2, y2, Color.RoyalBlue );
			myPane.ClusterScaleWidth = 100;
			//curve.Bar.Fill = new Fill( Color.Blue );
			//curve.Symbol.Size = 12;

			myPane.PaneFill = new Fill( Color.WhiteSmoke, Color.Lavender, 0F );
			
			myPane.AxisFill = new Fill( Color.White, Color.FromArgb( 255, 255, 166), 90F );
			
			myPane.XAxis.IsShowGrid = true;
			myPane.XAxis.ScaleFontSpec.Angle = 0;

			myPane.YAxis.IsShowGrid = true;
			myPane.YAxis.ScaleFontSpec.Angle = 90;
			myPane.YAxis.Max = 120;

			TextItem text = new TextItem("First Prod\n21-Oct-93", 175F, 80.0F );
			text.AlignH = AlignH.Center;
			text.AlignV = AlignV.Bottom;
			text.FontSpec.Fill = new Fill( Color.White, Color.PowderBlue, 45F );
			myPane.TextList.Add( text );

			ArrowItem arrow = new ArrowItem( Color.Black, 12F, 175F, 77F, 100F, 45F );
			arrow.CoordinateFrame = CoordType.AxisXYScale;
			myPane.ArrowList.Add( arrow );

			text = new TextItem("Upgrade", 700F, 50.0F );
			text.FontSpec.Angle = 90;
			text.FontSpec.FontColor = Color.Black;
			text.AlignH = AlignH.Right;
			text.AlignV = AlignV.Center;
			text.FontSpec.Fill.IsFilled = false;
			//text.FontSpec.Fill = new Fill( Color.White, Color.LightGoldenrodYellow, -45F );
			text.FontSpec.IsFramed = false;
			myPane.TextList.Add( text );

			arrow = new ArrowItem( Color.Black, 15, 700, 53, 700, 80 );
			arrow.CoordinateFrame = CoordType.AxisXYScale;
			arrow.PenWidth = 2.0F;
			myPane.ArrowList.Add( arrow );

			text = new TextItem("Confidential", 0.8F, -0.03F );
			text.CoordinateFrame = CoordType.AxisFraction;

			text.FontSpec.Angle = 15.0F;
			text.FontSpec.FontColor = Color.Red;
			text.FontSpec.IsBold = true;
			text.FontSpec.Size = 16;
			text.FontSpec.IsFramed = false;
			text.FontSpec.FrameColor = Color.Red;
			text.FontSpec.Fill.IsFilled = false;

			text.AlignH = AlignH.Left;
			text.AlignV = AlignV.Bottom;
			myPane.TextList.Add( text );

			myPane.AxisChange( this.CreateGraphics() );
		}

		/// <summary>
		/// 
		/// </summary>
		/// <param name="pevent"></param>
		protected override void OnPaintBackground(PaintEventArgs pevent)
		{
		}

		private void Form1_Paint(object sender, System.Windows.Forms.PaintEventArgs e)
		{
			SolidBrush brush = new SolidBrush( Color.Gray );
			if ( memGraphics.CanDoubleBuffer() )
			{
				// Fill in Background (for effieciency only the area that has been clipped)
				memGraphics.g.FillRectangle( new SolidBrush(SystemColors.Window),
					e.ClipRectangle.X, e.ClipRectangle.Y,
					e.ClipRectangle.Width, e.ClipRectangle.Height);

				// Do our drawing using memGraphics.g instead e.Graphics
		     
				memGraphics.g.FillRectangle( brush, this.ClientRectangle );
				myPane.Draw( memGraphics.g );
		   
				// Render to the form
				memGraphics.Render( e.Graphics );
			}
			else	// if double buffer is not available, do without it
			{
				e.Graphics.FillRectangle( brush, this.ClientRectangle );
				myPane.Draw( e.Graphics );
			}
		}

		private void Form1_Resize(object sender, System.EventArgs e)
		{
			memGraphics.CreateDoubleBuffer(this.CreateGraphics(),
					this.ClientRectangle.Width, this.ClientRectangle.Height);
			SetSize();
			Invalidate();
		}

		private void SetSize()
		{
			Rectangle paneRect = this.ClientRectangle;
			paneRect.Inflate( -10, -10 );
			this.myPane.PaneRect = paneRect;
		}
	}
}