using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;

using System.Xml.Serialization;



namespace Microsoft.Research.DynamicDataDisplay.Maps.DeepZoom

{

    /// <summary>

    /// Location of the image in the viewport.

    /// </summary>

    public class Viewport

    {

        /// <summary>

        /// The width of the area of the image displayed. This value is in logical coordinates. 

        /// For example a value of 1 displays the entire image (no zoom), 

        /// a value of 0.5 is 200% zoomed in and a value of 0 is completely zoomed (user cannot see the image at all). 

        /// A value above 1 is zooming out from the image. 

        /// For example, a value of 2 means that the image will take up half the size of the MultiScaleSubImage control area (50% zoom).

        /// </summary>

        [XmlAttribute]

        public double Width { get; set; }



        /// <summary>

        /// The left coordinate of the rectangular area of the image to be displayed. 

        /// The coordinates of the point are in local coordinates (0-1) relative to the displayed image width.

        /// </summary>

        [XmlAttribute]

        public double X { get; set; }



        /// <summary>

        /// The top coordinate of the rectangular area of the image to be displayed. 

        /// The coordinates of the point are in local coordinates (0-1) relative to the displayed image width.

        /// </summary>

        [XmlAttribute]

        public double Y { get; set; }

    }

}