■ MapColorizer 클래스를 사용해 커스텀 색상화기를 구현하는 방법을 보여준다.
▶ CustomMapColorizer .cs
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using System; using System.Drawing; using DevExpress.XtraMap; namespace TestProject { /// <summary> /// 커스텀 맵 색상화기 /// </summary> public class CustomMapColorizer : MapColorizer { //////////////////////////////////////////////////////////////////////////////////////////////////// Field ////////////////////////////////////////////////////////////////////////////////////////// Private #region Field /// <summary> /// 색상 배열 /// </summary> private Color[] colorArray = { Color.Violet, Color.Blue, Color.LightBlue, Color.Green, Color.Yellow, Color.Orange, Color.Red }; #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Public #region 요소 색상 표시하기 - ColorizeElement(colorizerElement) /// <summary> /// 요소 색상 표시하기 /// </summary> /// <param name="colorizerElement">색상화기 요소 인터페이스</param> public override void ColorizeElement(IColorizerElement colorizerElement) { MapPolygon polygon = colorizerElement as MapPolygon; if(polygon != null) { double power = (double)polygon.Attributes["PowerValue"].Value; int linearizedPower = (int)Math.Truncate(power * colorArray.Length / 1000); colorizerElement.ColorizerColor = colorArray[linearizedPower]; } } #endregion } } |
▶ MainForm.cs
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using System; using System.Windows.Forms; 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(); Load += Form_Load; } #endregion //////////////////////////////////////////////////////////////////////////////////////////////////// Method ////////////////////////////////////////////////////////////////////////////////////////// Private //////////////////////////////////////////////////////////////////////////////// Event #region 폼 로드시 처리하기 - Form_Load(sender, e) /// <summary> /// 폼 로드시 처리하기 /// </summary> /// <param name="sender">이벤트 발생자</param> /// <param name="e">이벤트 인자</param> private void Form_Load(object sender, EventArgs e) { #region 맵 컨트롤을 설정한다. MapControl mapControl = new MapControl(); mapControl.Parent = this; mapControl.Dock = DockStyle.Fill; #endregion #region 맵 항목 저장소를 설정한다. MapItemStorage mapItemStorage = new MapItemStorage(); MapItemCollection mapItemCollection = mapItemStorage.Items; for(int i = 0; i < 50; i++) { MapPolygon polygon = CreatePolygon ( i * 20, new GeoPoint[] { new GeoPoint(0 , 5 * i ), new GeoPoint(0 , 5 * (i + 1)), new GeoPoint(40, 5 * (i + 1)), new GeoPoint(40, 5 * i ), new GeoPoint(0 , 5 * i ) } ); mapItemCollection.Add(polygon); } #endregion #region 벡터 항목 레이어를 설정한다. VectorItemsLayer vectorItemsLayer = new VectorItemsLayer(); vectorItemsLayer.Data = mapItemStorage; vectorItemsLayer.Colorizer = new CustomMapColorizer(); vectorItemsLayer.ToolTipPattern = "{PowerValue}"; mapControl.Layers.Add(vectorItemsLayer); #endregion } #endregion //////////////////////////////////////////////////////////////////////////////// Function #region 다각형 생성하기 - CreatePolygon(power, pointArray) /// <summary> /// 다각형 생성하기 /// </summary> /// <param name="power">파워</param> /// <param name="pointArray">포인트 배열</param> /// <returns>맵 다각형</returns> private MapPolygon CreatePolygon(double power, GeoPoint[] pointArray) { MapPolygon polygon = new MapPolygon(); foreach(GeoPoint point in pointArray) { polygon.Points.Add(point); } polygon.Attributes.Add ( new MapItemAttribute() { Name = "PowerValue", Type = typeof(double), Value = power } ); return polygon; } #endregion } } |
