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2026-10-02 08:19:12 +00:00 · 2016-03-05 14:06:38 +01:00
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+/*
+ * NPlot - A charting library for .NET
+ * 
+ * MarkerItem.cs
+ * Copyright (C) 2003-2006 Matt Howlett and others.
+ * All rights reserved.
+ * 
+ * Redistribution and use in source and binary forms, with or without modification,
+ * are permitted provided that the following conditions are met:
+ * 
+ * 1. Redistributions of source code must retain the above copyright notice, this
+ *    list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright notice,
+ *    this list of conditions and the following disclaimer in the documentation
+ *    and/or other materials provided with the distribution.
+ * 3. Neither the name of NPlot nor the names of its contributors may
+ *    be used to endorse or promote products derived from this software without
+ *    specific prior written permission.
+ * 
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+ * IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
+ * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
+ * OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
+ * OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+using System;
+using System.Drawing;
+
+namespace NPlot
+{
+
+	/// <summary>
+	/// Class for placement of a single marker.
+	/// </summary>
+	public class MarkerItem : IDrawable
+	{
+
+		private Marker marker_; 
+		private double x_;
+		private double y_; 
+
+
+		/// <summary>
+		/// Constructs a square marker at the (world) point point.
+		/// </summary>
+		/// <param name="point">the world position at which to place the marker</param>
+		public MarkerItem( PointD point )
+		{
+			marker_ = new Marker( Marker.MarkerType.Square );
+			x_ = point.X;
+			y_ = point.Y;
+		}
+
+
+		/// <summary>
+		/// Default constructor - a square black marker.
+		/// </summary>
+		/// <param name="x">The world x position of the marker</param>
+		/// <param name="y">The world y position of the marker</param>
+		public MarkerItem( double x, double y )
+		{
+			marker_ = new Marker( Marker.MarkerType.Square );
+			x_ = x;
+			y_ = y;
+		}
+
+
+		/// <summary>
+		/// Constructor
+		/// </summary>
+		/// <param name="marker">The marker to place on the chart.</param>
+		/// <param name="x">The world x position of the marker</param>
+		/// <param name="y">The world y position of the marker</param>
+		public MarkerItem( Marker marker, double x, double y )
+		{
+			marker_ = marker;
+			x_ = x;
+			y_ = y;
+		}
+
+		/// <summary>
+		/// Constructor
+		/// </summary>
+		/// <param name="marker">The marker to place on the chart.</param>
+		/// <param name="point">The world position of the marker</param>
+		public MarkerItem( Marker marker, PointD point )
+		{
+			marker_ = marker;
+			x_ = point.X;
+			y_ = point.Y;
+		}
+
+		/// <summary>
+		/// Draws the marker on a plot surface.
+		/// </summary>
+		/// <param name="g">graphics surface on which to draw</param>
+		/// <param name="xAxis">The X-Axis to draw against.</param>
+		/// <param name="yAxis">The Y-Axis to draw against.</param>
+		public void Draw( System.Drawing.Graphics g, PhysicalAxis xAxis, PhysicalAxis yAxis )
+		{
+			PointF point = new PointF( 
+				xAxis.WorldToPhysical( x_, true ).X,
+				yAxis.WorldToPhysical( y_, true ).Y );
+
+			marker_.Draw( g, (int)point.X, (int)point.Y );
+		}
+	
+
+	}
+}