mirror of https://github.com/mhowlett/nplot.git
105 lines
3.8 KiB
C#
105 lines
3.8 KiB
C#
/*
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* NPlot - A charting library for .NET
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*
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* MarkerItem.cs
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* Copyright (C) 2003-2006 Matt Howlett and others.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without modification,
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* are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
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* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
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* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
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* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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using System.Drawing;
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namespace NPlot
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{
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/// <summary>
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/// Class for placement of a single marker.
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/// </summary>
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public class MarkerItem : IDrawable
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{
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private readonly Marker marker_;
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private readonly double x_;
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private readonly double y_;
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/// <summary>
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/// Constructs a square marker at the (world) point point.
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/// </summary>
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/// <param name="point">the world position at which to place the marker</param>
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public MarkerItem(PointD point)
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{
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marker_ = new Marker(Marker.MarkerType.Square);
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x_ = point.X;
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y_ = point.Y;
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}
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/// <summary>
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/// Default constructor - a square black marker.
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/// </summary>
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/// <param name="x">The world x position of the marker</param>
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/// <param name="y">The world y position of the marker</param>
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public MarkerItem(double x, double y)
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{
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marker_ = new Marker(Marker.MarkerType.Square);
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x_ = x;
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y_ = y;
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}
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="marker">The marker to place on the chart.</param>
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/// <param name="x">The world x position of the marker</param>
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/// <param name="y">The world y position of the marker</param>
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public MarkerItem(Marker marker, double x, double y)
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{
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marker_ = marker;
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x_ = x;
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y_ = y;
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}
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/// <summary>
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/// Constructor
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/// </summary>
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/// <param name="marker">The marker to place on the chart.</param>
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/// <param name="point">The world position of the marker</param>
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public MarkerItem(Marker marker, PointD point)
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{
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marker_ = marker;
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x_ = point.X;
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y_ = point.Y;
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}
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/// <summary>
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/// Draws the marker on a plot surface.
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/// </summary>
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/// <param name="g">graphics surface on which to draw</param>
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/// <param name="xAxis">The X-Axis to draw against.</param>
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/// <param name="yAxis">The Y-Axis to draw against.</param>
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public void Draw(Graphics g, PhysicalAxis xAxis, PhysicalAxis yAxis)
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{
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PointF point = new PointF(
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xAxis.WorldToPhysical(x_, true).X,
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yAxis.WorldToPhysical(y_, true).Y);
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marker_.Draw(g, (int) point.X, (int) point.Y);
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}
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}
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} |