jaitools.jiffle.package-info Maven / Gradle / Ivy
/*
* Copyright 2009-2011 Michael Bedward
*
* This file is part of jai-tools.
*
* jai-tools is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as
* published by the Free Software Foundation, either version 3 of the
* License, or (at your option) any later version.
*
* jai-tools is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with jai-tools. If not, see
* Jiffle is a language for raster algebra. Using it you can create images from
* mathematical and logical expressions which may, in turn, use data from other
* images. The main intention of Jiffle is to free you from having to write lots
* of Java and JAI boiler-plate code. Jiffle also allows much more flexibility
* that is possible with JAI's ImageFunction.
*
* Jiffle is a superset of the r.mapcalc language used for raster algebra in
* GRASS GIS. Although there are minor differences between the two languages,
* including the form of variable names allowable, many r.mapcalc scripts should
* run under Jiffle with little or no changes required.
*
* Jiffle adds additional features to those offered in r.mapcalc including more
* statistical functions, choice of scope for variables, and syntax to access
* specified bands and pixels in input images.
*
* Jiffle scripts are compiled to bytecode. The compiler first
* translates the script into Java source which is then passed to Jiffle's
* embedded Janino compiler to produce executable bytecode in memory. The
* resulting run-time instance can then be used by client code as a normal
* Java object.
*/
package jaitools.jiffle;