====== Source Code DesktopEditionSample SweepAngle CS 100506.zip ======
====Program.cs====
using System;
using System.Collections.Generic;
using System.Linq;
using System.Windows.Forms;
namespace SweepAngleDesktop
{
static class Program
{
///
/// The main entry point for the application.
///
[STAThread]
static void Main()
{
Application.EnableVisualStyles();
Application.SetCompatibleTextRenderingDefault(false);
Application.Run(new TestForm());
}
}
}
====TestForm.cs====
using System;
using System.Windows.Forms;
using System.Collections.ObjectModel;
using ThinkGeo.MapSuite.Core;
using ThinkGeo.MapSuite.DesktopEdition;
namespace SweepAngleDesktop
{
public partial class TestForm : Form
{
float sweepAngle = 1;
Collection pointShapes = new Collection();
public TestForm()
{
InitializeComponent();
}
private void TestForm_Load(object sender, EventArgs e)
{
//In Desktop version, you have to set the MapUnit as a property of the map control.
winformsMap1.MapUnit = GeographyUnit.DecimalDegree;
//Services Edition: mapEngine.CurrentExtent = ExtentHelper.GetDrawingExtent(new RectangleShape(-95.2834,38.9834,-95.2058,38.9401), Map.Width, Map.Height);
winformsMap1.CurrentExtent = new RectangleShape(-95.2834, 38.9834, -95.2058, 38.9401);
//Services Edition: mapEngine.BackgroundFillBrush = new GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean);
winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.GeographicColors.ShallowOcean);
//Displays the World Map Kit as a background.
ThinkGeo.MapSuite.DesktopEdition.WorldMapKitWmsDesktopOverlay worldMapKitDesktopOverlay = new ThinkGeo.MapSuite.DesktopEdition.WorldMapKitWmsDesktopOverlay();
//Services Edition: mapEngine.StaticLayers.Add(worldMapKitLayer);
winformsMap1.Overlays.Add(worldMapKitDesktopOverlay);
//----Identical code in all the versions---------------------------------------------------
//Displays the polygon for sweep angle.
InMemoryFeatureLayer inMemoryFeatureLayer = new InMemoryFeatureLayer();
inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultAreaStyle = AreaStyles.CreateHueFamilyLinearGradientAreaStyle(GeoColor.StandardColors.Transparent, GeoColor.StandardColors.Yellow,
5, GeoColor.FromArgb(150,GeoColor.StandardColors.Blue), GeoColor.FromArgb(150,GeoColor.StandardColors.Red), 45);
inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.CreateSimplePointStyle(PointSymbolType.Circle, GeoColor.StandardColors.Yellow, 10);
inMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
InMemoryFeatureLayer pointsInMemoryFeatureLayer = new InMemoryFeatureLayer();
pointsInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.DefaultPointStyle = PointStyles.CreateSimplePointStyle(PointSymbolType.Circle, GeoColor.StandardColors.Yellow, 10);
pointsInMemoryFeatureLayer.ZoomLevelSet.ZoomLevel01.ApplyUntilZoomLevel = ApplyUntilZoomLevel.Level20;
//Collection of PointShapes to do the spatial query based on the sweep angle PolygonShape.
pointShapes.Add(new PointShape(-95.2297, 38.9704));
pointShapes.Add(new PointShape(-95.2452, 38.9696));
pointShapes.Add(new PointShape(-95.2597, 38.9676));
pointShapes.Add(new PointShape(-95.2565, 38.9581));
pointShapes.Add(new PointShape(-95.2455, 38.947));
pointShapes.Add(new PointShape(-95.2352, 38.9531));
//-------------------------------------------------------------------------------------------
//Services Edition:
//mapEngine.DynamicLayers.Add("Sweep Angle", inMemoryFeatureLayer);
//mapEngine.DynamicLayers.Add("Points", pointsInMemoryFeatureLayer);
LayerOverlay dynamicLayerOverlay = new LayerOverlay();
dynamicLayerOverlay.Layers.Add("Sweep Angle",inMemoryFeatureLayer);
dynamicLayerOverlay.Layers.Add("Points", pointsInMemoryFeatureLayer);
winformsMap1.Overlays.Add("Dynamic Overlay", dynamicLayerOverlay);
timer1.Interval = 10;
timer1.Start();
winformsMap1.Refresh();
}
private void timer1_Tick(object sender, EventArgs e)
{
if (sweepAngle == 360) sweepAngle = 1;
//Updates the sweep angle polygon
//Services Edition: InMemoryFeatureLayer inMemoryFeatureLayer = (InMemoryFeatureLayer)mapEngine.DynamicLayers["Sweep|Angle"];
//Services Edition: InMemoryFeatureLayer pointsInMemoryFeatureLayer = (InMemoryFeatureLayer)mapEngine.DynamicLayers["Points"];
LayerOverlay dynamicLayerOverlay = (LayerOverlay)winformsMap1.Overlays["Dynamic|Overlay"];
InMemoryFeatureLayer inMemoryFeatureLayer = (InMemoryFeatureLayer)dynamicLayerOverlay.Layers["Sweep|Angle"];
InMemoryFeatureLayer pointsInMemoryFeatureLayer = (InMemoryFeatureLayer)dynamicLayerOverlay.Layers["Points"];
inMemoryFeatureLayer.Open();
inMemoryFeatureLayer.EditTools.BeginTransaction();
inMemoryFeatureLayer.InternalFeatures.Clear();
PolygonShape polygonShape = CreatePie(new PointShape(-95.2462, 38.9609), 0F, sweepAngle, 0.0001F, 0.02F);
inMemoryFeatureLayer.EditTools.Add(new Feature(polygonShape));
inMemoryFeatureLayer.EditTools.CommitTransaction();
inMemoryFeatureLayer.Close();
//Updates the points based on spatial query.
pointsInMemoryFeatureLayer.Open();
pointsInMemoryFeatureLayer.EditTools.BeginTransaction();
pointsInMemoryFeatureLayer.InternalFeatures.Clear();
foreach (PointShape pointShape in pointShapes)
{
if (polygonShape.Contains(pointShape))
{
pointsInMemoryFeatureLayer.EditTools.Add(new Feature(pointShape));
}
}
pointsInMemoryFeatureLayer.EditTools.CommitTransaction();
pointsInMemoryFeatureLayer.Close();
sweepAngle = sweepAngle + 1;
//Services Edition: DrawImage();
winformsMap1.Refresh(dynamicLayerOverlay);
}
//Creates the Pie based on a start angle and a sweep angle.
private PolygonShape CreatePie(PointShape origin, float startAngle, float sweepAngle, float innerRadius, float outerRadius)
{
double minAngle = Math.Min(startAngle, sweepAngle);
double maxAngle = Math.Max(startAngle, sweepAngle);
int quaterPointCount = 96;
RingShape innerCircle = new EllipseShape(origin, innerRadius).ToPolygon(quaterPointCount).OuterRing;
RingShape outerCircle = new EllipseShape(origin, outerRadius).ToPolygon(quaterPointCount).OuterRing;
int innerStartIndex = (int)(startAngle * quaterPointCount * 4 / 360.0);
int innerEndIndex = (int)(sweepAngle * quaterPointCount * 4 / 360.0);
int outerStartIndex = innerStartIndex;
int outerEndIndex = innerEndIndex;
Collection vertices = new Collection();
for (int i = outerEndIndex; i >= outerStartIndex; i--)
{
vertices.Add(outerCircle.Vertices[i]);
}
for (int i = innerStartIndex; i <= innerEndIndex; i++)
{
vertices.Add(innerCircle.Vertices[i]);
}
vertices.Add(outerCircle.Vertices[outerEndIndex]);
RingShape resultRing = new RingShape(vertices);
PolygonShape resultPolygon = new PolygonShape(resultRing);
return resultPolygon;
}
private void winformsMap1_MouseMove(object sender, MouseEventArgs e)
{
//Displays the X and Y in screen coordinates.
statusStrip1.Items["toolStripStatusLabelScreen"].Text = "X:" + e.X + " Y:" + e.Y;
//Gets the PointShape in world coordinates from screen coordinates.
PointShape pointShape = ExtentHelper.ToWorldCoordinate(winformsMap1.CurrentExtent, new ScreenPointF(e.X, e.Y), winformsMap1.Width, winformsMap1.Height);
//Displays world coordinates.
statusStrip1.Items["toolStripStatusLabelWorld"].Text = "(world) X:" + Math.Round(pointShape.X, 4) + " Y:" + Math.Round(pointShape.Y, 4);
}
private void btnClose_Click(object sender, EventArgs e)
{
this.Close();
}
}
}