本文整理汇总了Java中org.gdal.gdal.Band.WriteRaster方法的典型用法代码示例。如果您正苦于以下问题:Java Band.WriteRaster方法的具体用法?Java Band.WriteRaster怎么用?Java Band.WriteRaster使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类org.gdal.gdal.Band
的用法示例。
在下文中一共展示了Band.WriteRaster方法的2个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Java代码示例。
示例1: copyToDataset
import org.gdal.gdal.Band; //导入方法依赖的package包/类
public void copyToDataset(Dataset ds, int dsWidth, int dsHeight, Bounds fullBounds, Bounds bounds,
int tilesize, int zoomlevel, int gdaltype) throws IOException
{
Pixel ulPixelTile = TMSUtils
.latLonToPixelsUL(bounds.n, bounds.w, zoomlevel, tilesize);
Pixel ulPixelDS = TMSUtils
.latLonToPixelsUL(fullBounds.n, fullBounds.w, zoomlevel, tilesize);
Pixel lrPixelTile = TMSUtils
.latLonToPixelsUL(bounds.s, bounds.e, zoomlevel, tilesize);
Pixel lrPixelDS = TMSUtils
.latLonToPixelsUL(fullBounds.s, fullBounds.e, zoomlevel, tilesize);
long leftPixel = Math.max(ulPixelDS.px, ulPixelTile.px);
long rightPixel = Math.min(lrPixelDS.px, lrPixelTile.px);
long topPixel = Math.max(ulPixelDS.py, ulPixelTile.py);
long bottomPixel = Math.min(lrPixelDS.py, lrPixelTile.py);
int xoffset = (ulPixelTile.px < leftPixel) ? (int) (leftPixel - ulPixelTile.px) : 0;
int yoffset = (ulPixelTile.py < topPixel) ? (int) (topPixel - ulPixelTile.py) : 0;
int xoffsetWrite = (int)(leftPixel - ulPixelDS.px);
int yoffsetWrite = (int)(topPixel - ulPixelDS.py);
int outWidth = (int) (rightPixel - leftPixel);
int outHeight = (int) (bottomPixel - topPixel);
byte[] rowdata = new byte[bytesPerPixel() * outWidth];
for (int b = 0; b < ds.GetRasterCount(); b++) {
for (int y = 0; y < outHeight; y++) {
Band band = ds.GetRasterBand(b + 1); // gdal bands are 1's based
System.arraycopy(data, calculateByteOffset(xoffset, y + yoffset, b), rowdata, 0, rowdata.length);
int success = band.WriteRaster(xoffsetWrite, y + yoffsetWrite, outWidth, 1, outWidth, 1, gdaltype, rowdata);
if (success != gdalconstConstants.CE_None) {
throw new IOException("Failed writing raster. gdal error: " + success);
}
}
}
}
示例2: toDataset
import org.gdal.gdal.Band; //导入方法依赖的package包/类
private Dataset toDataset(Dataset ds, int gdaltype, Bounds bounds,
int xoffset, int yoffset,
int outWidth, int outHeight,
double[] nodatas)
{
double[] xform = new double[6];
if (bounds != null)
{
xform[0] = bounds.w;
xform[1] = bounds.width() / outWidth;
xform[2] = 0;
xform[3] = bounds.n;
xform[4] = 0;
xform[5] = -bounds.height() / outHeight;
ds.SetProjection(GDALUtils.EPSG4326());
}
else
{
xform[0] = 0;
xform[1] = outWidth;
xform[2] = 0;
xform[3] = 0;
xform[4] = 0;
xform[5] = -outHeight;
}
ds.SetGeoTransform(xform);
byte[] rowdata = new byte[bytesPerPixel() * outWidth];
for (int b = 0; b < bands; b++)
{
Band band = ds.GetRasterBand(b + 1); // gdal bands are 1's based
if (nodatas != null)
{
if (b < nodatas.length)
{
band.SetNoDataValue(nodatas[b]);
}
else
{
band.SetNoDataValue(nodatas[nodatas.length - 1]);
}
}
for (int y=0; y < outHeight; y++) {
System.arraycopy(data, calculateByteOffset(xoffset, y + yoffset, b), rowdata, 0, rowdata.length);
int success = band.WriteRaster(0, y, outWidth, 1, outWidth, 1, gdaltype, rowdata);
if (success != gdalconstConstants.CE_None)
{
System.out.println("Failed writing raster. gdal error: " + success);
break;
}
}
}
return ds;
}