Here you can find the source of crop(final Raster src, final long tx, final long ty, final long minTx, final long maxTy, final int tilesize)
public static Raster crop(final Raster src, final long tx, final long ty, final long minTx, final long maxTy, final int tilesize)
//package com.java2s; /*//from www . ja v a 2 s. c o m * Copyright 2009-2016 DigitalGlobe, Inc. * * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this file except in compliance with the License. * You may obtain a copy of the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. * See the License for the specific language governing permissions and limitations under the License. * */ import java.awt.image.*; public class Main { public static Raster crop(final Raster src, final long tx, final long ty, final long minTx, final long maxTy, final int tilesize) { final int dtx = (int) (tx - minTx); final int dty = (int) (maxTy - ty); final int x = dtx * tilesize; final int y = dty * tilesize; final WritableRaster cropped = src.createCompatibleWritableRaster(tilesize, tilesize); cropped.setDataElements(0, 0, tilesize, tilesize, src.getDataElements(x, y, tilesize, tilesize, null)); return cropped; } }