001 /* 002 * 003 004 Licensed under the Apache License, Version 2.0 (the "License"); 005 you may not use this file except in compliance with the License. 006 You may obtain a copy of the License at 007 008 http://www.apache.org/licenses/LICENSE-2.0 009 010 Unless required by applicable law or agreed to in writing, software 011 distributed under the License is distributed on an "AS IS" BASIS, 012 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 013 See the License for the specific language governing permissions and 014 limitations under the License. 015 */ 016 017 package railo.runtime.img.filter; 018 /** 019 * An interface for color maps. These are passed to filters which convert gray values to 020 * colors. This is similar to the ColorModel class but works with floating point values. 021 */ 022 public interface Colormap { 023 /** 024 * Convert a value in the range 0..1 to an RGB color. 025 * @param v a value in the range 0..1 026 * @return an RGB color 027 */ 028 public int getColor(float v); 029 } 030