jericks

import geoscript.layer.Shapefile
import geoscript.proj.Projection
import geoscript.feature.Field

def shp = new Shapefile("test_uk.shp")
def out = shp.workspace.create(shp.schema.reproject("EPSG:27700", "test_uk_valid"))
out.add(shp.cursor.collect{f ->
    f.geom = Projection.transform(f.geom, "EPSG:4326", "EPSG:27700")
    if (!f.geom.isValid()) {
        f.geom = f.geom.buffer(0)

jericks

import geoscript.layer.*
import geoscript.proj.*
import geoscript.style.*
import geoscript.map.*
import geoscript.filter.Function

def statesShp = new Shapefile("states.shp")

statesShp.style = new Style([
    new PolygonSymbolizer(

jericks

import geoscript.geom.Bounds
import geoscript.map.Map
import geoscript.workspace.Directory
import geoscript.style.*
import geoscript.filter.Function

def dir = new Directory("/Users/jericks/Downloads/OpenGeo Workshop/data/shp-gs")
def layer = dir.get("nyc_buildings")
layer.style = new Style([
    new PolygonSymbolizer(

jericks

import geoscript.feature.Field
import org.geotools.factory.CommonFactoryFinder
import org.opengis.filter.expression.Function as GtFunction
import org.geotools.filter.FunctionImpl
import org.opengis.filter.expression.Expression

/**
 * A GeoScript Function either wraps an existing GeoTools Function or
 * can easily create a new Function by passing in a Closure.
 * @author Jared Erickson