[C#/WINFORM/DEVEXPRESS] ChoroplethColorizer 클래스 : 수동으로 추가된 도형을 색상 표시하기

■ ChoroplethColorizer 클래스를 사용해 수동으로 추가된 도형을 색상 표시하는 방법을 보여준다.

▶ MainForm.cs


using System.Collections.Generic;
using System.Drawing;
using System.Windows.Forms;

using DevExpress.Utils;
using DevExpress.XtraEditors;
using DevExpress.XtraMap;

namespace TestProject
{
    /// <summary>
    /// 메인 폼
    /// </summary>
    public partial class MainForm : XtraForm
    {
        //////////////////////////////////////////////////////////////////////////////////////////////////// Constructor
        ////////////////////////////////////////////////////////////////////////////////////////// Public

        #region 생성자 - MainForm()

        /// <summary>
        /// 생성자
        /// </summary>
        public MainForm()
        {
            InitializeComponent();

            #region 툴팁 컨트롤러를 설정한다.

            ToolTipController toolTipController = new ToolTipController();

            toolTipController.AllowHtmlText = true;

            #endregion
            #region 맵 컨트롤을 설정한다.

            MapControl mapControl = new MapControl();

            mapControl.Parent            = this;
            mapControl.Dock              = DockStyle.Fill;
            mapControl.ToolTipController = toolTipController;

            #endregion
            #region 맵 항목 저장소를 설정한다.

            MapItemStorage mapItemStorage = new MapItemStorage();

            mapItemStorage.Items.Add
            (
                GetMapPolygon
                (
                    800,
                    "Small triangle",
                    new GeoPoint[]
                    {
                        new GeoPoint(0 , 0 ),
                        new GeoPoint(0 , 40),
                        new GeoPoint(40, 0 ),
                        new GeoPoint(0 , 0 )
                    }
                )
            );

            mapItemStorage.Items.Add
            (
                GetMapPolygon
                (
                    1800,
                    "Large triangle",
                    new GeoPoint[]
                    {
                        new GeoPoint( 0 ,  0 ),
                        new GeoPoint( 0 , -60),
                        new GeoPoint(-60,  0 ),
                        new GeoPoint( 0 ,  0 )
                    }
                )
            );

            #endregion
            #region 도형 어트리뷰트 값 공급자를 설정한다.

            ShapeAttributeValueProvider shapeAttributeValueProvider = new ShapeAttributeValueProvider();

            shapeAttributeValueProvider.AttributeName = "AreaValue";

            #endregion
            #region CHOROPLETH 색상화기를 설정한다.

            ChoroplethColorizer choroplethColorizer = new ChoroplethColorizer();

            choroplethColorizer.ValueProvider = shapeAttributeValueProvider;

            choroplethColorizer.RangeStops.AddRange
            (
                new List<double>
                {
                    0,
                    1000,
                    2000
                }
            );

            choroplethColorizer.ColorItems.AddRange
            (
                new List<ColorizerColorItem>
                {
                    new ColorizerColorItem(Color.Yellow),
                    new ColorizerColorItem(Color.Red   )
                }
            );

            #endregion
            #region 벡터 항목 레이어를 설정한다.

            VectorItemsLayer vectorItemsLayer = new VectorItemsLayer();

            vectorItemsLayer.Data      = mapItemStorage;
            vectorItemsLayer.Colorizer = choroplethColorizer;

            mapControl.Layers.Add(vectorItemsLayer);

            #endregion
            #region 색상 스케일 레전드를 설정한다.

            ColorScaleLegend colorScaleLegend = new ColorScaleLegend();

            colorScaleLegend.Header = "Area";
            colorScaleLegend.Layer  = vectorItemsLayer;

            mapControl.Legends.Add(colorScaleLegend);

            #endregion
        }

        #endregion

        //////////////////////////////////////////////////////////////////////////////////////////////////// Method
        ////////////////////////////////////////////////////////////////////////////////////////// Private

        #region 맵 다각형 구하기 - GetMapPolygon(areaValue, polygonName, pointArray)

        /// <summary>
        /// 맵 다각형 구하기
        /// </summary>
        /// <param name="areaValue">영역 값</param>
        /// <param name="polygonName">다각형 명칭</param>
        /// <param name="pointArray">포인트 배열</param>
        /// <returns>맵 다각형</returns>
        private MapPolygon GetMapPolygon(double areaValue, string polygonName, GeoPoint[] pointArray)
        {
            MapPolygon mapPolygon = new MapPolygon();

            mapPolygon.Attributes.Add
            (
                new MapItemAttribute()
                {
                    Name  = "AreaValue",
                    Type  = typeof(double),
                    Value = areaValue
                }
            );

            mapPolygon.Attributes.Add
            (
                new MapItemAttribute()
                {
                    Name  = "PolygonName",
                    Type  = typeof(string),
                    Value = polygonName
                }
            );

            mapPolygon.ToolTipPattern = "{PolygonName}=<b>{AreaValue}</b>";

            foreach(GeoPoint point in pointArray)
            {
                mapPolygon.Points.Add(point);
            }

            return mapPolygon;
        }

        #endregion
    }
}

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using System.Collections.Generic;

using System.Drawing;

using System.Windows.Forms;

using DevExpress.Utils;

using DevExpress.XtraEditors;

using DevExpress.XtraMap;

namespace TestProject

{

/// <summary>

/// 메인 폼

/// </summary>

public partial class MainForm : XtraForm

{

//////////////////////////////////////////////////////////////////////////////////////////////////// Constructor

////////////////////////////////////////////////////////////////////////////////////////// Public

#region 생성자 - MainForm()

/// <summary>

/// 생성자

/// </summary>

public MainForm()

{

InitializeComponent();

#region 툴팁 컨트롤러를 설정한다.

ToolTipController toolTipController = new ToolTipController();

toolTipController.AllowHtmlText = true;

#endregion

#region 맵 컨트롤을 설정한다.

MapControl mapControl = new MapControl();

mapControl.Parent = this;

mapControl.Dock = DockStyle.Fill;

mapControl.ToolTipController = toolTipController;

#endregion

#region 맵 항목 저장소를 설정한다.

MapItemStorage mapItemStorage = new MapItemStorage();

mapItemStorage.Items.Add

(

GetMapPolygon

(

800,

"Small triangle",

new GeoPoint[]

{

new GeoPoint(0 , 0 ),

new GeoPoint(0 , 40),

new GeoPoint(40, 0 ),

new GeoPoint(0 , 0 )

}

)

);

mapItemStorage.Items.Add

(

GetMapPolygon

(

1800,

"Large triangle",

new GeoPoint[]

{

new GeoPoint( 0 , 0 ),

new GeoPoint( 0 , -60),

new GeoPoint(-60, 0 ),

new GeoPoint( 0 , 0 )

}

)

);

#endregion

#region 도형 어트리뷰트 값 공급자를 설정한다.

ShapeAttributeValueProvider shapeAttributeValueProvider = new ShapeAttributeValueProvider();

shapeAttributeValueProvider.AttributeName = "AreaValue";

#endregion

#region CHOROPLETH 색상화기를 설정한다.

ChoroplethColorizer choroplethColorizer = new ChoroplethColorizer();

choroplethColorizer.ValueProvider = shapeAttributeValueProvider;

choroplethColorizer.RangeStops.AddRange

(

new List<double>

{

1000,

2000

}

);

choroplethColorizer.ColorItems.AddRange

(

new List<ColorizerColorItem>

{

new ColorizerColorItem(Color.Yellow),

new ColorizerColorItem(Color.Red )

}

);

#endregion

#region 벡터 항목 레이어를 설정한다.

VectorItemsLayer vectorItemsLayer = new VectorItemsLayer();

vectorItemsLayer.Data = mapItemStorage;

vectorItemsLayer.Colorizer = choroplethColorizer;

mapControl.Layers.Add(vectorItemsLayer);

#endregion

#region 색상 스케일 레전드를 설정한다.

ColorScaleLegend colorScaleLegend = new ColorScaleLegend();

colorScaleLegend.Header = "Area";

colorScaleLegend.Layer = vectorItemsLayer;

mapControl.Legends.Add(colorScaleLegend);

#endregion

}

#endregion

//////////////////////////////////////////////////////////////////////////////////////////////////// Method

////////////////////////////////////////////////////////////////////////////////////////// Private

#region 맵 다각형 구하기 - GetMapPolygon(areaValue, polygonName, pointArray)

/// <summary>

/// 맵 다각형 구하기

/// </summary>

/// <param name="areaValue">영역 값</param>

/// <param name="polygonName">다각형 명칭</param>

/// <param name="pointArray">포인트 배열</param>

/// <returns>맵 다각형</returns>

private MapPolygon GetMapPolygon(double areaValue, string polygonName, GeoPoint[] pointArray)

{

MapPolygon mapPolygon = new MapPolygon();

mapPolygon.Attributes.Add

(

new MapItemAttribute()

{

Name = "AreaValue",

Type = typeof(double),

Value = areaValue

}

);

mapPolygon.Attributes.Add

(

new MapItemAttribute()

{

Name = "PolygonName",

Type = typeof(string),

Value = polygonName

}

);

mapPolygon.ToolTipPattern = "{PolygonName}=<b>{AreaValue}</b>";

foreach(GeoPoint point in pointArray)

{

mapPolygon.Points.Add(point);

}

return mapPolygon;

}

#endregion

}

TestProject.zip

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[C#/WINFORM/DEVEXPRESS] ChoroplethColorizer 클래스 : 수동으로 추가된 도형을 색상 표시하기