build.gradle - groovy sample code

build.gradle

apply plugin: 'groovy'

buildscript {
    repositories {
        mavenLocal()
        maven {
            url "http://repo.opengeo.org"
        }
    }
    dependencies {
        classpath ('org.geotools:gt-epsg-hsql:10.4', 'org.geotools:gt-api:10.4', 'com.vividsolutions:jts:1.13')
    }
}

import org.geotools.referencing.CRS
import org.geotools.geometry.jts.JTS
import com.vividsolutions.jts.geom.Coordinate

task transform() {
    def epsg4326 = CRS.decode("EPSG:4326", true)
    def lv03 = CRS.decode("EPSG:21781")

    def mathTransform = CRS.findMathTransform(epsg4326, lv03, true)

    def result = JTS.transform(new Coordinate(7.6626,47.53814), null, mathTransform)

    println(result);
}

to be launched using gradle:

gradle transform