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source_code_desktopeditionsample_heatmap_cs_091022.zip
Table of Contents
Source Code DesktopEditionSample HeatMap CS 091022.zip
HeatPoint.cs
using System; using System.Collections.Generic; using System.Text; namespace HeatMap { internal struct HeatPoint { public int X; public int Y; public byte Intensity; public HeatPoint(int x, int y, byte intensity) { X = x; Y = y; Intensity = intensity; } } }
HeatStyle.cs
using System; using System.Collections.Generic; using System.Collections.ObjectModel; using System.Drawing; using System.Drawing.Drawing2D; using System.Drawing.Imaging; using System.IO; using ThinkGeo.MapSuite.Core; namespace HeatMap { class HeatStyle : Style { private double intensityRangeStart; private double intensityRangeEnd; private string intensityColumnName; private float pointSize; private DistanceUnit pointSizeUnit; private int intensity; private int alpha; private Collection<GeoColor> colorPalette = new Collection<GeoColor>(); public HeatStyle() : this(10, 255, string.Empty, 0, 0, 50, DistanceUnit.Kilometer) { } public HeatStyle(int intensity) : this(intensity, 255, string.Empty, 0, 0, 50, DistanceUnit.Kilometer) { } public HeatStyle(int intensity, int alpha) : this(intensity, alpha, string.Empty, 0, 0, 50, DistanceUnit.Kilometer) { } public HeatStyle(int intensity, float pointSize, DistanceUnit pointSizeUnit) : this(10, 255, string.Empty, 0, 0, pointSize, pointSizeUnit) { } public HeatStyle(int intensity, int alpha, float pointSize, DistanceUnit pointSizeUnit) : this(10, alpha, string.Empty, 0, 0, pointSize, pointSizeUnit) { } public HeatStyle(string intensityColumnName, double intensityRangeStart, int intensityRangeEnd) : this(10, 255, intensityColumnName, intensityRangeStart, intensityRangeEnd, 50, DistanceUnit.Kilometer) { } public HeatStyle(int alpha, string intensityColumnName, double intensityRangeStart, int intensityRangeEnd) : this(10, alpha, intensityColumnName, intensityRangeStart, intensityRangeEnd, 50, DistanceUnit.Kilometer) { } public HeatStyle(string intensityColumnName, double intensityRangeStart, int intensityRangeEnd, float pointSize, DistanceUnit pointSizeUnit) : this(10, 255, intensityColumnName, intensityRangeStart, intensityRangeEnd, pointSize, pointSizeUnit) { } public HeatStyle(int alpha, string intensityColumnName, double intensityRangeStart, int intensityRangeEnd, float pointSize, DistanceUnit pointSizeUnit) : this(10, alpha, intensityColumnName, intensityRangeStart, intensityRangeEnd, pointSize, pointSizeUnit) { } public HeatStyle(int intensity, int alpha, string intensityColumnName, double intensityRangeStart, int intensityRangeEnd, float pointSize, DistanceUnit pointSizeUnit) { this.intensity = intensity; this.alpha = alpha; this.intensityColumnName = intensityColumnName; this.intensityRangeStart = intensityRangeStart; this.intensityRangeEnd = intensityRangeEnd; this.pointSize = pointSize; this.PointSizeUnit = DistanceUnit.Kilometer; } public int Intensity { get { return intensity; } set { intensity = value; } } public int Alpha { get { return alpha; } set { alpha = value; } } public double IntensityRangeStart { get { return intensityRangeStart; } set { intensityRangeStart = value; } } public double IntensityRangeEnd { get { return intensityRangeEnd; } set { intensityRangeEnd = value; } } public string IntensityColumnName { get { return intensityColumnName; } set { intensityColumnName = value; } } public float PointSize { get { return pointSize; } set { pointSize = value; } } public DistanceUnit PointSizeUnit { get { return pointSizeUnit; } set { pointSizeUnit = value; } } protected override void DrawCore(IEnumerable<Feature> features, GeoCanvas canvas, System.Collections.ObjectModel.Collection<SimpleCandidate> labelsInThisLayer, System.Collections.ObjectModel.Collection<SimpleCandidate> labelsInAllLayers) { Bitmap intensityBitmap = null; Bitmap colorBitmap = null; GeoImage geoImage = null; MemoryStream pngStream = null; try { // Load the default color palette if it does not exisit // or does not have the right amount of colors if (colorPalette.Count != 256) { colorPalette = GetDefaultColorPalette(); } intensityBitmap = new Bitmap(Convert.ToInt32(canvas.Width), Convert.ToInt32(canvas.Height)); Graphics Surface = Graphics.FromImage(intensityBitmap); Surface.Clear(Color.Transparent); Surface.Dispose(); List<HeatPoint> heatPoints = new List<HeatPoint>(); foreach (Feature feature in features) { if (feature.GetWellKnownType() == WellKnownType.Point) { PointShape pointShape = (PointShape)feature.GetShape(); ScreenPointF screenPoint = ExtentHelper.ToScreenCoordinate(canvas.CurrentWorldExtent, pointShape, canvas.Width, canvas.Height); double realValue; if (intensityRangeStart != 0 && intensityRangeEnd != 0 && intensityRangeStart != intensityRangeEnd && intensityColumnName != string.Empty) { if (intensityRangeStart < intensityRangeEnd) { realValue = (255 / (intensityRangeEnd - intensityRangeStart)) * (GetDoubleValue(feature.ColumnValues[intensityColumnName], intensityRangeStart, intensityRangeEnd) - intensityRangeStart); } else { realValue = (255 / (intensityRangeEnd - intensityRangeStart)) * (intensityRangeEnd - GetDoubleValue(feature.ColumnValues[intensityColumnName], intensityRangeStart, intensityRangeEnd)); } } else { realValue = intensity; } HeatPoint heatPoint = new HeatPoint(Convert.ToInt32(screenPoint.X), Convert.ToInt32(screenPoint.Y), Convert.ToByte(realValue)); heatPoints.Add(heatPoint); } } //Calls the function to get the pixel size of the point based on the world point size and the current extent of the map. float size = GetPointSize(canvas); // Create the intensity bitmap intensityBitmap = CreateIntensityMask(intensityBitmap, heatPoints, Convert.ToInt32(size)); // Color the intensity bitmap colorBitmap = Colorize(intensityBitmap, (byte)alpha, colorPalette); // Create a geoimage from the color bitmap pngStream = new MemoryStream(); colorBitmap.Save(pngStream, System.Drawing.Imaging.ImageFormat.Png); geoImage = new GeoImage(pngStream); // Write the geoimage to the canvas canvas.DrawWorldImageWithoutScaling(geoImage, canvas.CurrentWorldExtent.GetCenterPoint().X, canvas.CurrentWorldExtent.GetCenterPoint().Y, DrawingLevel.LevelOne); } finally { // Make sure we clean up all the memeory that we use durring the process if (intensityBitmap != null) { intensityBitmap.Dispose(); } if (colorBitmap != null) { colorBitmap.Dispose(); } if (geoImage != null) { geoImage.Dispose(); } if (pngStream != null) { pngStream.Dispose(); } } } private float GetPointSize(GeoCanvas canvas) { // Calculate the size of the points in pixel based on the world point size and the current extent. //Gets the proper point size according to the current extent. (meter is used as base unit) double canvasSizeMeter; double pointSizeMeter = Conversion.ConvertMeasureUnits(pointSize, pointSizeUnit, DistanceUnit.Meter); //if the mapunit is in Decimal Degrees, it uses a different logic than with other mapunits such as meters and feet. if (canvas.MapUnit == GeographyUnit.DecimalDegree) { try { canvasSizeMeter = DecimalDegreesHelper.GetDistanceFromDecimalDegrees(canvas.CurrentWorldExtent.UpperLeftPoint.X, canvas.CurrentWorldExtent.UpperLeftPoint.Y, canvas.CurrentWorldExtent.LowerLeftPoint.X, canvas.CurrentWorldExtent.LowerLeftPoint.Y, DistanceUnit.Meter); } catch { canvasSizeMeter = DecimalDegreesHelper.GetDistanceFromDecimalDegrees(180, 90, 180, -90, DistanceUnit.Meter); } finally { } } else { DistanceUnit fromUnit = DistanceUnit.Meter; if (canvas.MapUnit == GeographyUnit.Feet) fromUnit = DistanceUnit.Feet; canvasSizeMeter = Conversion.ConvertMeasureUnits(canvas.CurrentWorldExtent.Height, fromUnit, DistanceUnit.Meter); } float size = (float)((pointSizeMeter * canvas.Height) / canvasSizeMeter); return size; } // This is retatded and needs to be redone. First the low and high values could be reversed and // if so we need to consider what to do there private static double GetDoubleValue(string value, double lowValue, double highValue) { double returnValue; if (value == "") { returnValue = lowValue; } else { double doubleValue; if (double.TryParse(value, out doubleValue)) { returnValue = doubleValue; } else { returnValue = lowValue; } } if (returnValue < lowValue) { returnValue = lowValue; } if (returnValue > highValue) { returnValue = highValue; } return returnValue; } protected override Collection<string> GetRequiredColumnNamesCore() { Collection<string> requiredColumnNames = new Collection<string>(); if (intensityColumnName.Length > 0) { requiredColumnNames.Add(intensityColumnName); } return requiredColumnNames; } private Bitmap CreateIntensityMask(Bitmap bSurface, List<HeatPoint> aHeatPoints, int radius) { // Create new graphics surface from memory bitmap Graphics DrawSurface = Graphics.FromImage(bSurface); // Set background color to white so that pixels can be correctly colorized DrawSurface.Clear(Color.White); // Traverse heat point data and draw masks for each heat point foreach (HeatPoint DataPoint in aHeatPoints) { // Render current heat point on draw surface DrawHeatPoint(DrawSurface, DataPoint, radius); } return bSurface; } private void DrawHeatPoint(Graphics Canvas, HeatPoint HeatPoint, int Radius) { // Create points generic list of points to hold circumference points List<Point> CircumferencePointsList = new List<Point>(); // Create an empty point to predefine the point struct used in the circumference loop Point CircumferencePoint; // Create an empty array that will be populated with points from the generic list Point[] CircumferencePointsArray; // Calculate ratio to scale byte intensity range from 0-255 to 0-1 float fRatio = 1F / Byte.MaxValue; // Precalulate half of byte max value byte bHalf = Byte.MaxValue / 2; // Flip intensity on it's center value from low-high to high-low int iIntensity = (byte)(HeatPoint.Intensity - ((HeatPoint.Intensity - bHalf) * 2)); // Store scaled and flipped intensity value for use with gradient center location float fIntensity = iIntensity * fRatio; // Loop through all angles of a circle // Define loop variable as a double to prevent casting in each iteration // Iterate through loop on 10 degree deltas, this can change to improve performance for (double i = 0; i <= 360; i += 10) { // Replace last iteration point with new empty point struct CircumferencePoint = new Point(); // Plot new point on the circumference of a circle of the defined radius // Using the point coordinates, radius, and angle // Calculate the position of this iterations point on the circle CircumferencePoint.X = Convert.ToInt32(HeatPoint.X + Radius * Math.Cos(ConvertDegreesToRadians(i))); CircumferencePoint.Y = Convert.ToInt32(HeatPoint.Y + Radius * Math.Sin(ConvertDegreesToRadians(i))); // Add newly plotted circumference point to generic point list CircumferencePointsList.Add(CircumferencePoint); } // Populate empty points system array from generic points array list // Do this to satisfy the datatype of the PathGradientBrush and FillPolygon methods CircumferencePointsArray = CircumferencePointsList.ToArray(); // Create new PathGradientBrush to create a radial gradient using the circumference points PathGradientBrush GradientShaper = new PathGradientBrush(CircumferencePointsArray); // Create new color blend to tell the PathGradientBrush what colors to use and where to put them ColorBlend GradientSpecifications = new ColorBlend(3); // Define positions of gradient colors, use intesity to adjust the middle color to // show more mask or less mask GradientSpecifications.Positions = new float[3] { 0, fIntensity, 1 }; // Define gradient colors and their alpha values, adjust alpha of gradient colors to match intensity GradientSpecifications.Colors = new Color[3] { Color.FromArgb(0, Color.White), Color.FromArgb(HeatPoint.Intensity, Color.Black), Color.FromArgb(HeatPoint.Intensity, Color.Black) }; // Pass off color blend to PathGradientBrush to instruct it how to generate the gradient GradientShaper.InterpolationColors = GradientSpecifications; // Draw polygon (circle) using our point array and gradient brush Canvas.FillPolygon(GradientShaper, CircumferencePointsArray); } private static double ConvertDegreesToRadians(double degrees) { double radians = (Math.PI / 180) * degrees; return (radians); } private static Bitmap Colorize(Bitmap Mask, byte Alpha, Collection<GeoColor> colorPalette) { // Create new bitmap to act as a work surface for the colorization process Bitmap Output = new Bitmap(Mask.Width, Mask.Height, PixelFormat.Format32bppArgb); // Create a graphics object from our memory bitmap so we can draw on it and clear it's drawing surface Graphics Surface = Graphics.FromImage(Output); Surface.Clear(Color.Transparent); // Build an array of color mappings to remap our greyscale mask to full color // Accept an alpha byte to specify the transparancy of the output image ColorMap[] Colors = CreatePaletteIndex(Alpha, colorPalette); // Create new image attributes class to handle the color remappings // Inject our color map array to instruct the image attributes class how to do the colorization ImageAttributes Remapper = new ImageAttributes(); Remapper.SetRemapTable(Colors); // Draw our mask onto our memory bitmap work surface using the new color mapping scheme Surface.DrawImage(Mask, new Rectangle(0, 0, Mask.Width, Mask.Height), 0, 0, Mask.Width, Mask.Height, GraphicsUnit.Pixel, Remapper); // Send back newly colorized memory bitmap return Output; } private static ColorMap[] CreatePaletteIndex(byte Alpha, Collection<GeoColor> colorPalette) { ColorMap[] OutputMap = new ColorMap[256]; // Loop through the palette and create a new color mapping for (int X = 0; X <= 255; X++) { OutputMap[X] = new ColorMap(); OutputMap[X].OldColor = Color.FromArgb(X, X, X); // If the user defined an alpha value that is below the one specified for the // entire map then use the user defined one if (colorPalette[X].AlphaComponent < Alpha) { OutputMap[X].NewColor = Color.FromArgb(colorPalette[X].AlphaComponent, colorPalette[X].RedComponent, colorPalette[X].GreenComponent, colorPalette[X].BlueComponent); } else { OutputMap[X].NewColor = Color.FromArgb(Alpha, colorPalette[X].RedComponent, colorPalette[X].GreenComponent, colorPalette[X].BlueComponent); } } return OutputMap; } private static Collection<GeoColor> GetDefaultColorPalette() { Collection<GeoColor> colorPalette = new Collection<GeoColor>(); colorPalette.Add(GeoColor.FromArgb(255, 254, 248, 248)); colorPalette.Add(GeoColor.FromArgb(255, 255, 249, 249)); colorPalette.Add(GeoColor.FromArgb(255, 255, 251, 250)); colorPalette.Add(GeoColor.FromArgb(255, 255, 252, 251)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 253)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 253)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 255, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 254, 255)); colorPalette.Add(GeoColor.FromArgb(255, 255, 253, 253)); colorPalette.Add(GeoColor.FromArgb(255, 255, 245, 245)); colorPalette.Add(GeoColor.FromArgb(255, 255, 236, 235)); colorPalette.Add(GeoColor.FromArgb(255, 254, 223, 221)); colorPalette.Add(GeoColor.FromArgb(255, 255, 207, 205)); colorPalette.Add(GeoColor.FromArgb(255, 253, 188, 186)); colorPalette.Add(GeoColor.FromArgb(255, 255, 170, 167)); colorPalette.Add(GeoColor.FromArgb(255, 255, 149, 149)); colorPalette.Add(GeoColor.FromArgb(255, 255, 130, 128)); colorPalette.Add(GeoColor.FromArgb(255, 255, 109, 109)); colorPalette.Add(GeoColor.FromArgb(255, 255, 91, 89)); colorPalette.Add(GeoColor.FromArgb(255, 255, 71, 71)); colorPalette.Add(GeoColor.FromArgb(255, 255, 53, 53)); colorPalette.Add(GeoColor.FromArgb(255, 255, 35, 35)); colorPalette.Add(GeoColor.FromArgb(255, 254, 22, 22)); colorPalette.Add(GeoColor.FromArgb(255, 254, 10, 10)); colorPalette.Add(GeoColor.FromArgb(255, 250, 2, 2)); colorPalette.Add(GeoColor.FromArgb(255, 253, 1, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 1, 0)); colorPalette.Add(GeoColor.FromArgb(255, 254, 0, 0)); colorPalette.Add(GeoColor.FromArgb(255, 254, 0, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 1, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 3, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 6, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 9, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 11, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 16, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 20, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 25, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 30, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 35, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 39, 3)); colorPalette.Add(GeoColor.FromArgb(255, 255, 45, 2)); colorPalette.Add(GeoColor.FromArgb(255, 254, 48, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 58, 1)); colorPalette.Add(GeoColor.FromArgb(255, 254, 60, 0)); colorPalette.Add(GeoColor.FromArgb(255, 254, 67, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 74, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 78, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 87, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 92, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 99, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 105, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 112, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 118, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 124, 0)); colorPalette.Add(GeoColor.FromArgb(255, 253, 131, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 137, 1)); colorPalette.Add(GeoColor.FromArgb(255, 255, 142, 1)); colorPalette.Add(GeoColor.FromArgb(255, 255, 150, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 156, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 161, 1)); colorPalette.Add(GeoColor.FromArgb(255, 254, 167, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 174, 2)); colorPalette.Add(GeoColor.FromArgb(255, 255, 180, 1)); colorPalette.Add(GeoColor.FromArgb(255, 254, 186, 1)); colorPalette.Add(GeoColor.FromArgb(255, 255, 192, 1)); colorPalette.Add(GeoColor.FromArgb(255, 255, 197, 2)); colorPalette.Add(GeoColor.FromArgb(255, 255, 203, 3)); colorPalette.Add(GeoColor.FromArgb(255, 254, 208, 1)); colorPalette.Add(GeoColor.FromArgb(255, 253, 212, 0)); colorPalette.Add(GeoColor.FromArgb(255, 254, 218, 0)); colorPalette.Add(GeoColor.FromArgb(255, 254, 222, 0)); colorPalette.Add(GeoColor.FromArgb(255, 254, 225, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 231, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 235, 0)); colorPalette.Add(GeoColor.FromArgb(255, 254, 239, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 241, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 245, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 246, 0)); colorPalette.Add(GeoColor.FromArgb(255, 255, 250, 1)); colorPalette.Add(GeoColor.FromArgb(255, 255, 251, 1)); colorPalette.Add(GeoColor.FromArgb(255, 253, 252, 1)); colorPalette.Add(GeoColor.FromArgb(255, 251, 252, 1)); colorPalette.Add(GeoColor.FromArgb(255, 247, 252, 0)); colorPalette.Add(GeoColor.FromArgb(255, 245, 251, 3)); colorPalette.Add(GeoColor.FromArgb(255, 241, 252, 2)); colorPalette.Add(GeoColor.FromArgb(255, 237, 251, 5)); colorPalette.Add(GeoColor.FromArgb(255, 233, 252, 4)); colorPalette.Add(GeoColor.FromArgb(255, 231, 251, 6)); colorPalette.Add(GeoColor.FromArgb(255, 226, 252, 5)); colorPalette.Add(GeoColor.FromArgb(255, 221, 251, 5)); colorPalette.Add(GeoColor.FromArgb(255, 216, 252, 4)); colorPalette.Add(GeoColor.FromArgb(255, 212, 252, 6)); colorPalette.Add(GeoColor.FromArgb(255, 207, 251, 6)); colorPalette.Add(GeoColor.FromArgb(255, 202, 252, 7)); colorPalette.Add(GeoColor.FromArgb(255, 198, 252, 10)); colorPalette.Add(GeoColor.FromArgb(255, 191, 250, 8)); colorPalette.Add(GeoColor.FromArgb(255, 186, 249, 10)); colorPalette.Add(GeoColor.FromArgb(255, 180, 247, 9)); colorPalette.Add(GeoColor.FromArgb(255, 176, 246, 10)); colorPalette.Add(GeoColor.FromArgb(255, 168, 244, 11)); colorPalette.Add(GeoColor.FromArgb(255, 163, 242, 11)); colorPalette.Add(GeoColor.FromArgb(255, 158, 241, 13)); colorPalette.Add(GeoColor.FromArgb(255, 152, 239, 13)); colorPalette.Add(GeoColor.FromArgb(255, 147, 235, 13)); colorPalette.Add(GeoColor.FromArgb(255, 140, 231, 12)); colorPalette.Add(GeoColor.FromArgb(255, 135, 232, 15)); colorPalette.Add(GeoColor.FromArgb(255, 129, 230, 16)); colorPalette.Add(GeoColor.FromArgb(255, 122, 226, 15)); colorPalette.Add(GeoColor.FromArgb(255, 116, 224, 17)); colorPalette.Add(GeoColor.FromArgb(255, 110, 221, 20)); colorPalette.Add(GeoColor.FromArgb(255, 104, 217, 21)); colorPalette.Add(GeoColor.FromArgb(255, 96, 216, 22)); colorPalette.Add(GeoColor.FromArgb(255, 92, 215, 23)); colorPalette.Add(GeoColor.FromArgb(255, 87, 212, 22)); colorPalette.Add(GeoColor.FromArgb(255, 82, 211, 23)); colorPalette.Add(GeoColor.FromArgb(255, 75, 207, 25)); colorPalette.Add(GeoColor.FromArgb(255, 70, 205, 25)); colorPalette.Add(GeoColor.FromArgb(255, 66, 202, 30)); colorPalette.Add(GeoColor.FromArgb(255, 60, 200, 31)); colorPalette.Add(GeoColor.FromArgb(255, 56, 197, 33)); colorPalette.Add(GeoColor.FromArgb(255, 50, 194, 34)); colorPalette.Add(GeoColor.FromArgb(255, 43, 193, 34)); colorPalette.Add(GeoColor.FromArgb(255, 38, 192, 36)); colorPalette.Add(GeoColor.FromArgb(255, 36, 189, 36)); colorPalette.Add(GeoColor.FromArgb(255, 31, 188, 37)); colorPalette.Add(GeoColor.FromArgb(255, 29, 187, 41)); colorPalette.Add(GeoColor.FromArgb(255, 24, 185, 43)); colorPalette.Add(GeoColor.FromArgb(255, 19, 184, 45)); colorPalette.Add(GeoColor.FromArgb(255, 15, 183, 46)); colorPalette.Add(GeoColor.FromArgb(255, 12, 182, 49)); colorPalette.Add(GeoColor.FromArgb(255, 8, 182, 51)); colorPalette.Add(GeoColor.FromArgb(255, 6, 181, 52)); colorPalette.Add(GeoColor.FromArgb(255, 4, 180, 55)); colorPalette.Add(GeoColor.FromArgb(255, 1, 179, 57)); colorPalette.Add(GeoColor.FromArgb(255, 1, 178, 61)); colorPalette.Add(GeoColor.FromArgb(255, 0, 179, 62)); colorPalette.Add(GeoColor.FromArgb(255, 0, 180, 65)); colorPalette.Add(GeoColor.FromArgb(255, 0, 181, 68)); colorPalette.Add(GeoColor.FromArgb(255, 0, 181, 70)); colorPalette.Add(GeoColor.FromArgb(255, 0, 182, 72)); colorPalette.Add(GeoColor.FromArgb(255, 1, 182, 77)); colorPalette.Add(GeoColor.FromArgb(255, 1, 183, 82)); colorPalette.Add(GeoColor.FromArgb(255, 0, 184, 86)); colorPalette.Add(GeoColor.FromArgb(255, 1, 185, 89)); colorPalette.Add(GeoColor.FromArgb(255, 0, 186, 91)); colorPalette.Add(GeoColor.FromArgb(255, 1, 188, 97)); colorPalette.Add(GeoColor.FromArgb(255, 0, 190, 100)); colorPalette.Add(GeoColor.FromArgb(255, 0, 192, 103)); colorPalette.Add(GeoColor.FromArgb(255, 0, 194, 108)); colorPalette.Add(GeoColor.FromArgb(255, 0, 195, 113)); colorPalette.Add(GeoColor.FromArgb(255, 0, 197, 118)); colorPalette.Add(GeoColor.FromArgb(255, 0, 198, 121)); colorPalette.Add(GeoColor.FromArgb(255, 0, 199, 126)); colorPalette.Add(GeoColor.FromArgb(255, 0, 201, 131)); colorPalette.Add(GeoColor.FromArgb(255, 0, 204, 135)); colorPalette.Add(GeoColor.FromArgb(255, 0, 205, 140)); colorPalette.Add(GeoColor.FromArgb(255, 0, 208, 143)); colorPalette.Add(GeoColor.FromArgb(255, 0, 210, 149)); colorPalette.Add(GeoColor.FromArgb(255, 0, 212, 154)); colorPalette.Add(GeoColor.FromArgb(255, 0, 213, 157)); colorPalette.Add(GeoColor.FromArgb(255, 0, 214, 162)); colorPalette.Add(GeoColor.FromArgb(255, 0, 216, 167)); colorPalette.Add(GeoColor.FromArgb(255, 2, 219, 174)); colorPalette.Add(GeoColor.FromArgb(255, 1, 222, 181)); colorPalette.Add(GeoColor.FromArgb(255, 0, 224, 187)); colorPalette.Add(GeoColor.FromArgb(255, 0, 228, 195)); colorPalette.Add(GeoColor.FromArgb(255, 0, 230, 201)); colorPalette.Add(GeoColor.FromArgb(255, 0, 232, 206)); colorPalette.Add(GeoColor.FromArgb(255, 0, 233, 211)); colorPalette.Add(GeoColor.FromArgb(255, 0, 234, 219)); colorPalette.Add(GeoColor.FromArgb(255, 0, 234, 223)); colorPalette.Add(GeoColor.FromArgb(255, 0, 234, 225)); colorPalette.Add(GeoColor.FromArgb(255, 1, 234, 230)); colorPalette.Add(GeoColor.FromArgb(255, 0, 234, 235)); colorPalette.Add(GeoColor.FromArgb(255, 1, 234, 239)); colorPalette.Add(GeoColor.FromArgb(255, 0, 234, 243)); colorPalette.Add(GeoColor.FromArgb(255, 0, 233, 247)); colorPalette.Add(GeoColor.FromArgb(255, 0, 235, 249)); colorPalette.Add(GeoColor.FromArgb(255, 0, 234, 251)); colorPalette.Add(GeoColor.FromArgb(255, 1, 233, 255)); colorPalette.Add(GeoColor.FromArgb(255, 1, 233, 255)); colorPalette.Add(GeoColor.FromArgb(255, 1, 229, 255)); colorPalette.Add(GeoColor.FromArgb(255, 2, 227, 255)); colorPalette.Add(GeoColor.FromArgb(255, 0, 222, 255)); colorPalette.Add(GeoColor.FromArgb(255, 0, 217, 252)); colorPalette.Add(GeoColor.FromArgb(255, 1, 213, 253)); colorPalette.Add(GeoColor.FromArgb(255, 0, 206, 248)); colorPalette.Add(GeoColor.FromArgb(255, 0, 200, 249)); colorPalette.Add(GeoColor.FromArgb(255, 0, 194, 247)); colorPalette.Add(GeoColor.FromArgb(255, 0, 185, 242)); colorPalette.Add(GeoColor.FromArgb(255, 0, 177, 239)); colorPalette.Add(GeoColor.FromArgb(255, 0, 169, 236)); colorPalette.Add(GeoColor.FromArgb(255, 0, 160, 230)); colorPalette.Add(GeoColor.FromArgb(255, 1, 153, 226)); colorPalette.Add(GeoColor.FromArgb(255, 1, 144, 220)); colorPalette.Add(GeoColor.FromArgb(255, 0, 136, 214)); colorPalette.Add(GeoColor.FromArgb(255, 0, 127, 208)); colorPalette.Add(GeoColor.FromArgb(255, 0, 120, 205)); colorPalette.Add(GeoColor.FromArgb(255, 0, 116, 203)); colorPalette.Add(GeoColor.FromArgb(255, 2, 111, 202)); colorPalette.Add(GeoColor.FromArgb(255, 0, 105, 197)); colorPalette.Add(GeoColor.FromArgb(255, 1, 97, 197)); colorPalette.Add(GeoColor.FromArgb(255, 0, 91, 192)); colorPalette.Add(GeoColor.FromArgb(255, 0, 82, 186)); colorPalette.Add(GeoColor.FromArgb(255, 0, 76, 182)); colorPalette.Add(GeoColor.FromArgb(255, 1, 69, 180)); colorPalette.Add(GeoColor.FromArgb(255, 0, 62, 175)); colorPalette.Add(GeoColor.FromArgb(255, 1, 54, 168)); colorPalette.Add(GeoColor.FromArgb(255, 0, 50, 165)); colorPalette.Add(GeoColor.FromArgb(255, 0, 43, 158)); colorPalette.Add(GeoColor.FromArgb(255, 0, 39, 153)); colorPalette.Add(GeoColor.FromArgb(255, 0, 33, 149)); colorPalette.Add(GeoColor.FromArgb(255, 0, 30, 143)); colorPalette.Add(GeoColor.FromArgb(255, 1, 24, 140)); colorPalette.Add(GeoColor.FromArgb(255, 0, 20, 135)); colorPalette.Add(GeoColor.FromArgb(255, 0, 15, 130)); colorPalette.Add(GeoColor.FromArgb(255, 0, 13, 127)); colorPalette.Add(GeoColor.FromArgb(255, 0, 11, 119)); colorPalette.Add(GeoColor.FromArgb(255, 1, 10, 115)); colorPalette.Add(GeoColor.FromArgb(255, 0, 7, 111)); colorPalette.Add(GeoColor.FromArgb(255, 1, 5, 104)); colorPalette.Add(GeoColor.FromArgb(255, 2, 5, 100)); colorPalette.Add(GeoColor.FromArgb(255, 3, 4, 94)); colorPalette.Add(GeoColor.FromArgb(255, 4, 4, 90)); colorPalette.Add(GeoColor.FromArgb(255, 4, 5, 87)); colorPalette.Add(GeoColor.FromArgb(255, 6, 5, 85)); colorPalette.Add(GeoColor.FromArgb(255, 7, 6, 82)); colorPalette.Add(GeoColor.FromArgb(255, 6, 9, 80)); colorPalette.Add(GeoColor.FromArgb(255, 7, 10, 77)); colorPalette.Add(GeoColor.FromArgb(255, 11, 12, 77)); colorPalette.Add(GeoColor.FromArgb(255, 13, 15, 76)); colorPalette.Add(GeoColor.FromArgb(255, 16, 16, 76)); colorPalette.Add(GeoColor.FromArgb(255, 16, 17, 73)); colorPalette.Add(GeoColor.FromArgb(255, 20, 20, 74)); colorPalette.Add(GeoColor.FromArgb(255, 22, 22, 72)); colorPalette.Add(GeoColor.FromArgb(255, 27, 25, 74)); colorPalette.Add(GeoColor.FromArgb(255, 30, 29, 73)); colorPalette.Add(GeoColor.FromArgb(255, 31, 31, 69)); colorPalette.Add(GeoColor.FromArgb(255, 33, 33, 67)); colorPalette.Add(GeoColor.FromArgb(255, 37, 36, 67)); colorPalette.Add(GeoColor.FromArgb(255, 39, 39, 65)); colorPalette.Add(GeoColor.FromArgb(255, 41, 41, 67)); colorPalette.Add(GeoColor.FromArgb(255, 44, 45, 66)); colorPalette.Add(GeoColor.FromArgb(255, 46, 44, 65)); colorPalette.Add(GeoColor.FromArgb(255, 48, 47, 63)); colorPalette.Add(GeoColor.FromArgb(255, 49, 48, 62)); colorPalette.Add(GeoColor.FromArgb(255, 50, 50, 60)); colorPalette.Add(GeoColor.FromArgb(255, 54, 52, 63)); colorPalette.Add(GeoColor.FromArgb(0, 53, 52, 60)); return colorPalette; } } }
Program.cs
using System; using System.Collections.Generic; using System.Linq; using System.Windows.Forms; namespace HeatMap { static class Program { /// <summary> /// The main entry point for the application. /// </summary> [STAThread] static void Main() { Application.EnableVisualStyles(); Application.SetCompatibleTextRenderingDefault(false); Application.Run(new TestForm()); } } }
TestForm.cs
using System; using System.Windows.Forms; using ThinkGeo.MapSuite.Core; using ThinkGeo.MapSuite.DesktopEdition; namespace HeatMap { public partial class TestForm : Form { public TestForm() { InitializeComponent(); } private void TestForm_Load(object sender, EventArgs e) { // Set the full extent and the background color winformsMap1.CurrentExtent = new RectangleShape(-150,64,-90,16); winformsMap1.BackgroundOverlay.BackgroundBrush = new GeoSolidBrush(GeoColor.FromArgb(255, 198, 255, 255)); //WorldMapKit WorldMapKitWmsDesktopOverlay worldMapKitDesktopOverlay = new WorldMapKitWmsDesktopOverlay(); winformsMap1.Overlays.Add(worldMapKitDesktopOverlay); ShapeFileFeatureSource featureSource = new ShapeFileFeatureSource(@"..\..\Data\swineflu.shp"); HeatLayer heatLayer = new HeatLayer(featureSource); //Creates the HeatStyle to set the properties determining the display of the heat map with earth quake data. //Notice that each point is treated with an intensity depending on the value of the column "other_magn1". //So, in addition to the density of points location, the value for each point is also going to be counted into account //for the coloring of the map. HeatStyle heatStyle = new HeatStyle(); heatStyle.Alpha = 255; heatStyle.PointRadius = 100; heatStyle.PointRadiusUnit = DistanceUnit.Kilometer; heatStyle.Alpha = 180; heatStyle.PointIntensity = 10; heatStyle.IntensityColumnName = "CONFIRMED"; heatStyle.IntensityRangeStart = 0; heatStyle.IntensityRangeEnd = 638; heatLayer.HeatStyle = heatStyle; LayerOverlay heatMapOverlay = new LayerOverlay(); heatMapOverlay.Layers.Add(heatLayer); winformsMap1.Overlays.Add("HeatOverlay", heatMapOverlay); winformsMap1.Refresh(); } private void btnClose_Click(object sender, EventArgs e) { this.Close(); } } }
source_code_desktopeditionsample_heatmap_cs_091022.zip.txt · Last modified: 2015/09/08 07:47 by admin