show_shapefile.scala

// scala -cp /Users/ryan/Downloads/commons-jxpath-1.3/commons-jxpath-1.3.jar:/Users/ryan/Downloads/miglayout-4.0.jar:/Users/ryan/Downloads/geotools-8.0-M4/\*:/Users/ryan/Downloads/jscience-4.3/jscience.jar:/Users/ryan/work/vendor/jts-1.12/lib/jts-1.12.jar show_shapefile.scala ~/Downloads/tl_2009_us_county/tl_2009_us_county.shp

import scala.collection.JavaConversions._

import java.awt.image.BufferedImage
import java.awt.Color
import java.awt.Rectangle
import java.awt.RenderingHints
import java.io.File
import java.util.HashMap

import javax.imageio.ImageIO

import org.geotools.data.FileDataStoreFinder
import org.geotools.map.FeatureLayer
import org.geotools.map.MapContent
import org.geotools.renderer.lite.StreamingRenderer
import org.geotools.styling.SLD
import org.geotools.swing.JMapFrame

val width = 800
val height = 600

val dataStore = FileDataStoreFinder.getDataStore(new File(args(0)))

val featureSource = dataStore.getFeatureSource

val map = new MapContent
map.setTitle(args(0))

val style = SLD.createSimpleStyle(featureSource.getSchema)
val layer = new FeatureLayer(featureSource, style)

map.addLayer(layer)

//JMapFrame.showMap(map)

def renderStatic() {
  var paintArea = new Rectangle(width, height)
  var mapArea = map.getMaxBounds

  var renderer = new StreamingRenderer
  renderer.setMapContent(map)

  val hints = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON)
  renderer.setJava2DHints(hints)

  val rendererParams = new HashMap[String, Any]
  rendererParams.put("optimizedDataLoadingEnabled", true)

  renderer.setRendererHints(rendererParams)

  val bufferedImage = new BufferedImage(width, height, BufferedImage.TYPE_INT_RGB)
  val graphics = bufferedImage.createGraphics

  graphics.setColor(Color.white)
  graphics.fillRect(0, 0, width, height)

  renderer.paint(graphics, paintArea, mapArea)

  ImageIO.write(bufferedImage, "png", new File(args(0) + ".png"))
}

renderStatic()