public static BitmapSource GetImageForLayer(GridLayer layer, Color lowcolor, Color highcolor, Color novaluecolor, double cutoff = 0, int intervals = 256)
{
var palette = CreateGradientPalette(lowcolor, highcolor, novaluecolor, intervals);
var bmp = new WriteableBitmap(layer.Width, layer.Height, 96, 96, PixelFormats.Indexed8, palette);
var range = layer.GetRange();
if (cutoff == 0 && range != null && range.Range > 0)
{
cutoff = range.Min;
}
double max = 0;
if (range != null)
{
max = range.Max;
}
double dx = Math.Abs(max - cutoff) / (intervals - 1);
byte[] array = new byte[layer.Width * layer.Height];
byte index = 0;
for (int y = 0; y < layer.Height; y++)
{
for (int x = 0; x < layer.Width; x++)
{
var value = layer.GetCellValue(x, (layer.Height - 1) - y);
if (value == layer.NoValueMarker)
{
index = 0;
}
else
{
if (value >= cutoff || cutoff == 0)
{
index = (byte)(((value - cutoff) / dx) + 1);
}
else
{
index = 0;
}
}
array[(y * layer.Width) + x] = index;
}
}
Int32Rect r = new Int32Rect(0, 0, layer.Width, layer.Height);
bmp.WritePixels(r, array, layer.Width, 0, 0);
return(bmp);
}
public GridLayerProperties(GridLayer layer)
{
InitializeComponent();
this.Layer = layer;
_model = new List <KeyValuePair <string, object> >();
_model.Add(new KeyValuePair <string, object>("Width", layer.Width));
_model.Add(new KeyValuePair <string, object>("Height", layer.Height));
_model.Add(new KeyValuePair <string, object>("Top (Latitude)", layer.Latitude0));
_model.Add(new KeyValuePair <string, object>("Left (Longitude)", layer.Longitude0));
_model.Add(new KeyValuePair <string, object>("Cell size X", layer.DeltaLongitude));
_model.Add(new KeyValuePair <string, object>("Cell size Y", layer.DeltaLatitude));
var range = layer.GetRange();
_model.Add(new KeyValuePair <string, object>("Minimum value", range.Min));
_model.Add(new KeyValuePair <string, object>("Maximum value", range.Max));
_model.Add(new KeyValuePair <string, object>("Range", range.Range));
_model.Add(new KeyValuePair <string, object>("'No Value' value", layer.NoValueMarker));
lvw.ItemsSource = _model;
}
public GridLayerProperties(GridLayer layer)
{
InitializeComponent();
this.Layer = layer;
_model = new List<KeyValuePair<string, object>>();
_model.Add(new KeyValuePair<string, object>("Width", layer.Width));
_model.Add(new KeyValuePair<string, object>("Height", layer.Height));
_model.Add(new KeyValuePair<string, object>("Top (Latitude)", layer.Latitude0));
_model.Add(new KeyValuePair<string, object>("Left (Longitude)", layer.Longitude0));
_model.Add(new KeyValuePair<string, object>("Cell size X", layer.DeltaLongitude));
_model.Add(new KeyValuePair<string, object>("Cell size Y", layer.DeltaLatitude));
var range = layer.GetRange();
_model.Add(new KeyValuePair<string, object>("Minimum value", range.Min));
_model.Add(new KeyValuePair<string, object>("Maximum value", range.Max));
_model.Add(new KeyValuePair<string, object>("Range", range.Range));
_model.Add(new KeyValuePair<string, object>("'No Value' value", layer.NoValueMarker));
lvw.ItemsSource = _model;
}
public static BitmapSource GetImageForLayer(GridLayer layer, Color lowcolor, Color highcolor, Color novaluecolor, double cutoff = 0, int intervals = 256)
{
var palette = CreateGradientPalette(lowcolor, highcolor, novaluecolor, intervals);
var bmp = new WriteableBitmap(layer.Width, layer.Height, 96, 96, PixelFormats.Indexed8, palette);
var range = layer.GetRange();
if (cutoff == 0 && range != null && range.Range > 0) {
cutoff = range.Min;
}
double max = 0;
if (range != null) {
max = range.Max;
}
double dx = Math.Abs(max - cutoff) / (intervals - 1);
byte[] array = new byte[layer.Width * layer.Height];
byte index = 0;
for (int y = 0; y < layer.Height; y++) {
for (int x = 0; x < layer.Width; x++) {
var value = layer.GetCellValue(x, (layer.Height - 1) - y);
if (value == layer.NoValueMarker) {
index = 0;
} else {
if (value >= cutoff || cutoff == 0) {
index = (byte) (((value - cutoff) / dx) + 1);
} else {
index = 0;
}
}
array[(y * layer.Width) + x] = index;
}
}
Int32Rect r= new Int32Rect(0, 0, layer.Width, layer.Height);
bmp.WritePixels(r, array, layer.Width, 0, 0);
return bmp;
}
