public void Overlay(RasterOp raster, Func <float, float, float> func)
{
if (Width != raster.Width || Height != raster.Height)
{
throw new ArgumentException("栅格大小不一致，无法叠加操作");
}
for (int i = 0; i < Width; i++)
{
for (int j = 0; j < Height; j++)
{
if (Read(i, j).HasValue&&raster.Read(i, j).HasValue)
{
float basic = Read(i, j).GetValueOrDefault();
float overlay = raster.Read(i, j).GetValueOrDefault();
Write(i, j, func(basic, overlay));
}
}
}
}
public RasterOp(RasterOp op)
{
_raster = new float?[op.Width, op.Height];
for (int i = 0; i < Width; i++)
{
for (int j = 0; j < Height; j++)
{
_raster[i, j] = op.Read(i, j);
}
}
}
public RasterOp(RasterOp op)
{
_raster = new float?[op.Width, op.Height];
for (int i = 0; i < Width; i++)
{
for (int j = 0; j < Height; j++)
{
_raster[i, j] = op.Read(i, j);
}
}
}
/// <summary>
/// 计算一个城市对其中的影响
/// </summary>
/// <param name="basic"></param>
/// <param name="city"></param>
/// <param name="value"></param>
private void Overlay(RasterOp basic, RasterOp city,float value)
{
for (int i = 0; i < basic.Width; i++)
{
for (int j = 0; j < basic.Height; j++)
{
if (basic.Read(i,j).HasValue)
{
var timeCost = (float)city.Read(i, j);
basic.Write(i,j,(float)basic.Read(i,j)+timeCost*value);
}
}
}
}
private void Overlay(RasterOp basic, RasterOp city,string cityName)
{
for (int i = 0; i < basic.Width; i++)
{
for (int j = 0; j < basic.Height; j++)
{
if (basic.Read(i, j).HasValue)
{
var timecost = (float) city.Read(i, j);
float shorestTimeCost = ShortestTimeCost(i, j, _cityPos[cityName]);
if (Math.Abs(shorestTimeCost) < 10e-5)
{
continue;
}
basic.Write(i, j, (float)basic.Read(i, j) + timecost/shorestTimeCost * CityValues[cityName]); }
}
}
}
private void Run(object p)
{
Hashtable para=p as Hashtable;
ContinuousWait wait = para["wait"] as ContinuousWait;
var folderPath = para["folderPath"].ToString();
try
{
string preWorkSpace = Path.GetDirectoryName(_preRasterFilePath);
string preFileName = Path.GetFileNameWithoutExtension(_preRasterFilePath);
string aftWorkSpace = Path.GetDirectoryName(_aftRasterFilePath);
string aftFileName = Path.GetFileNameWithoutExtension(_aftRasterFilePath);
RasterReader preReader = new RasterReader(preWorkSpace, preFileName + ".tif");
RasterReader aftReader = new RasterReader(aftWorkSpace, aftFileName + ".tif");
RasterOp preOp = new RasterOp(preReader);
RasterOp aftOp = new RasterOp(aftReader);
RasterOp res = preOp.Clone();
res.Reset();
for (int i = 0; i < preOp.Width; i++)
{
for (int j = 0; j < preOp.Height; j++)
{
if (preOp.Read(i, j).HasValue)
{
float orgin = (float) preOp.Read(i, j);
float now = (float) aftOp.Read(i, j);
if (Math.Abs(orgin) > 10e-5)
{
float rate = (now - orgin)/orgin;
res.Write(i, j, rate);
}
}
}
}
RasterWriter writer=new RasterWriter(folderPath,RasterName,preReader.RasterInfo);
res.WriteRaster(writer,"TIFF");
para["ret"] = true;
}
catch (Exception e)
{
_log.Error(e.GetType()+e.Message+e.StackTrace);
para["ret"] = false;
}
finally
{
wait.CloseWait();
}
}
private void Overlay(RasterOp basic, RasterOp city, string cityName)
{
for (int i = 0; i < basic.Width; i++)
{
for (int j = 0; j < basic.Height; j++)
{
if (basic.Read(i, j).HasValue)
{
float timeCost = (float)city.Read(i, j);
if (Math.Abs(timeCost) < 10e-5)
{
if (_popDic.ContainsKey(cityName))
{
float tt = (float)(3*Math.Log10(_popDic[cityName]*10));
basic.Write(i,j,(float)basic.Read(i,j)+CityValues[cityName]/tt);
}
}
else
{
basic.Write(i, j, (float)basic.Read(i, j) + CityValues[cityName] / timeCost);
}
}
}
}
}
public void Overlay(RasterOp raster,Func<float,float,float> func)
{
if (Width!=raster.Width||Height!=raster.Height)
{
throw new ArgumentException("栅格大小不一致，无法叠加操作");
}
for (int i = 0; i < Width; i++)
{
for (int j = 0; j < Height; j++)
{
if (Read(i,j).HasValue&&raster.Read(i,j).HasValue)
{
float basic =Read(i, j).GetValueOrDefault();
float overlay =raster.Read(i, j).GetValueOrDefault();
Write(i,j,func(basic,overlay));
}
}
}
}