C# 利用IRawPixels接口遍历栅格数据

本文主要介绍了利用IRawPixels接口遍历栅格数据。具有很好的参考价值，下面跟着小编一起来看下吧

AO的版本为10.2，开发的语言是C#。栅格数据来源IRasterDataset接口。

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									IRasterBandCollection pRasterBandCollection = pRasterDataset as IRasterBandCollection;

									IRasterBand pRasterBand = pRasterBandCollection.Item(0);

									 IRaster pRaster = (pRasterDataset as IRasterDataset2).CreateFullRaster();

									IRawPixels pRawPixels = pRasterBand as IRawPixels;

									IRasterProps pRasterProps = pRasterBand as IRasterProps;

									int dHeight = pRasterProps.Height;

									int dWidth = pRasterProps.Width; 

									IPnt pntSize = new PntClass();

									pntSize.SetCoords(dHeight, dWidth);

									IPnt pPixelBlockOrigin = new PntClass();

									pPixelBlockOrigin.SetCoords(0, 0);

									IPixelBlock pixelBlock = pRaster.CreatePixelBlock(pntSize);

									pRawPixels.Read(pPixelBlockOrigin, pixelBlock);

									System.Array arr = (System.Array)(pixelBlock as IPixelBlock3).get_PixelData(0);

									for (int i = 0; i < dHeight;i++ ) 

									{

									 for (int j = 0; j < dWidth; j++) 

									 {

									   float number = 0;

									   float.TryParse(arr.GetValue(i,j).ToString(),out number);     

									  }

									}