/// <summary>
/// Creates an instance of this class
/// </summary>
private HeatLayer()
{
ZoomMin = Double.NaN;
_bitmaps = GenerateDots();
HeatColorBlend = Fire;
_opacityMax = 0.7;
_opacityMin = 1f;
}
/// <summary>
/// Creates an instance of this class
/// </summary>
private HeatLayer()
{
ZoomMin = Double.NaN;
_bitmaps = GenerateDots();
HeatColorBlend = Fire;
_opacityMax = 0.7;
_opacityMin = 1f;
}
/// <summary>
/// Creates an instance of this class
/// </summary>
private HeatLayer()
: base(new Style(), new NullRenderer())
{
ZoomMin = Double.NaN;
_bitmaps = GenerateDots();
HeatColorBlend = Fire;
_opacityMax = 0.7;
_opacityMin = 1f;
}
/// <summary>
/// Creates an instance of this class
/// </summary>
private HeatLayer()
: base(new Style(), new NullRenderer())
{
ZoomMin = Double.NaN;
_bitmaps = GenerateDots();
HeatColorBlend = Fire;
_opacityMax = 0.7;
_opacityMin = 1f;
}
private static void Colorize(Bitmap image, ColorBlend heatPalette, float f)
{
if (f < 0)
{
f = 0;
}
if (f > 1)
{
f = 1;
}
var imageData = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadWrite,
PixelFormat.Format32bppPArgb);
var imageStride = imageData.Stride;
var imageScan0 = imageData.Scan0;
for (var y = 0; y < image.Height; y++)
{
var buffer = new byte[imageStride];
System.Runtime.InteropServices.Marshal.Copy(imageScan0 + y * imageStride, buffer, 0, imageStride);
for (var x = 0; x < image.Width * 4; x += 4)
{
var colorIndex = (255 - buffer[x + 2]) / 255f;
var color = heatPalette.GetColor(colorIndex);
var alpha = Convert.ToInt32(255f * (color.A / 255f) * (buffer[x + 3] / 255f) * f);
color = Color.FromArgb(alpha, color);
buffer[x + 3] = color.A;
buffer[x + 2] = color.R;
buffer[x + 1] = color.G;
buffer[x + 0] = color.B;
}
System.Runtime.InteropServices.Marshal.Copy(buffer, 0, imageScan0 + y * imageStride, imageStride);
}
image.UnlockBits(imageData);
}
private static void Colorize(Bitmap image, ColorBlend heatPalette, float f)
{
if (f < 0) f = 0;
if (f > 1) f = 1;
var imageData = image.LockBits(new Rectangle(0, 0, image.Width, image.Height), ImageLockMode.ReadWrite,
PixelFormat.Format32bppPArgb);
var imageStride = imageData.Stride;
var imageScan0 = imageData.Scan0;
for (var y = 0; y < image.Height; y++)
{
var buffer = new byte[imageStride];
System.Runtime.InteropServices.Marshal.Copy(imageScan0 + y * imageStride, buffer, 0, imageStride);
for (var x = 0; x < image.Width * 4; x += 4)
{
var colorIndex = (255 - buffer[x+2]) / 255f;
var color = heatPalette.GetColor(colorIndex);
var alpha = Convert.ToInt32(255f * (color.A / 255f) * (buffer[x+3] / 255f) * f);
color = Color.FromArgb(alpha, color);
buffer[x + 3] = color.A;
buffer[x + 2] = color.R;
buffer[x + 1] = color.G;
buffer[x + 0] = color.B;
}
System.Runtime.InteropServices.Marshal.Copy(buffer, 0, imageScan0 + y * imageStride, imageStride);
}
image.UnlockBits(imageData);
}
