Add groovy script for applying a transform

See #42

scripts/Apply_Bigwarp_Xfm.groovy

@@ -0,0 +1,69 @@
+// @File(label="Landmark file") landmarksPath
+// @File(label="Moving image file") movingPath
+// @File(label="Target image file (optional)", required=false) targetPath
+// @String(label="Interpolation", choices={"Linear", "Nearest Neighbor"}) interpType
+// @int(label="Number of threads", min=1, max=64) nThreads
+
+import java.io.File;
+import java.io.IOException;
+import java.util.ArrayList;
+
+import bdv.ij.ApplyBigwarpPlugin;
+import bdv.img.TpsTransformWrapper;
+import bdv.img.WarpedSource;
+import bdv.viewer.Interpolation;
+import bdv.viewer.SourceAndConverter;
+import bigwarp.BigWarp.BigWarpData;
+import bigwarp.BigWarp;
+import bigwarp.BigWarpARGBExporter;
+import bigwarp.BigWarpExporter;
+import bigwarp.BigWarpInit;
+import bigwarp.BigWarpRealExporter;
+import bigwarp.landmarks.LandmarkTableModel;
+
+import ij.IJ;
+import ij.ImageJ;
+import ij.ImagePlus;
+import ij.gui.GenericDialog;
+import ij.plugin.PlugIn;
+import jitk.spline.ThinPlateR2LogRSplineKernelTransform;
+import mpicbg.spim.data.sequence.VoxelDimensions;
+import net.imglib2.realtransform.InverseRealTransform;
+import net.imglib2.type.numeric.ARGBType;
+import net.imglib2.type.numeric.integer.ByteType;
+import net.imglib2.type.numeric.integer.IntType;
+import net.imglib2.type.numeric.integer.UnsignedByteType;
+import net.imglib2.type.numeric.integer.UnsignedShortType;
+import net.imglib2.type.numeric.real.DoubleType;
+import net.imglib2.type.numeric.real.FloatType;
+
+println landmarksPath
+println movingPath
+println targetPath
+
+movingIp = IJ.openImage( movingPath.getAbsolutePath() );
+targetIp = movingIp;
+
+if ( targetPath != null )
+	targetIp = IJ.openImage( targetPath.getAbsolutePath() );
+
+int nd = 2;
+if ( movingIp.getNSlices() > 1 )
+	nd = 3;
+
+ltm = new LandmarkTableModel( nd );
+try
+{
+	ltm.load( landmarksPath );
+} catch ( IOException e )
+{
+	e.printStackTrace();
+	return;
+}
+
+Interpolation interp = Interpolation.NLINEAR;
+if( interpType.equals( "Nearest Neighbor" ))
+	interp = Interpolation.NEARESTNEIGHBOR;
+
+ImagePlus warpedIp = ApplyBigwarpPlugin.apply( movingIp, targetIp, ltm, interp, nThreads );
+warpedIp.show();