/** @throws Exception */
public void testOctaveScalar() throws Exception {
final OctaveObject i1 = Octave.scalar(42);
final OctaveEngine octave = new OctaveEngineFactory().getScriptEngine();
octave.put("i", i1);
final OctaveDouble i2 = octave.get(OctaveDouble.class, "i");
assertEquals(i1, i2);
octave.close();
}
/** Test that we can get and set globals */
public void testOctaveGlobal() {
final OctaveEngine octave = new OctaveEngineFactory().getScriptEngine();
octave.eval("global x");
octave.put("x", Octave.scalar(42.0));
final OctaveDouble x = octave.get(OctaveDouble.class, "x");
assertEquals(42.0, x.get(1));
octave.close();
}
/** @throws Exception */
public void testOctaveSetExecGet() throws Exception {
final double[] numbers = {1, 2, 3, 4, 5, 6};
final OctaveEngine octave = new OctaveEngineFactory().getScriptEngine();
final OctaveDouble in = new OctaveDouble(numbers, 2, 3);
octave.put("in", in);
octave.eval("out=in;");
final OctaveDouble out = octave.get(OctaveDouble.class, "out");
assertEquals(OctaveIO.toText(in), OctaveIO.toText(out));
octave.eval("slicerow=in(2,:); slicecol=in(:,2);");
final OctaveDouble slicerow = octave.get(OctaveDouble.class, "slicerow");
final OctaveDouble slicecol = octave.get(OctaveDouble.class, "slicecol");
assertEquals(2.0, slicerow.get(1, 1));
assertEquals(4.0, slicerow.get(1, 2));
assertEquals(6.0, slicerow.get(1, 3));
assertEquals(3.0, slicecol.get(1, 1));
assertEquals(4.0, slicecol.get(2, 1));
octave.close();
}
/** Test */
public void testOctave3dMatrix() {
final OctaveDouble matrix3d = new OctaveDouble(3, 4, 2);
matrix3d.set(42.0, 1, 3, 2);
matrix3d.set(-1.0, 3, 1, 1);
final OctaveEngine octave = new OctaveEngineFactory().getScriptEngine();
octave.put("matrix3d", matrix3d);
octave.eval("x1 = matrix3d(:,:,1);");
octave.eval("x2 = matrix3d(:,:,2);");
octave.eval("x3 = matrix3d(:,3,:);");
octave.eval("x4 = matrix3d(3,:,:);");
final OctaveDouble x1 = octave.get(OctaveDouble.class, "x1");
final OctaveDouble x2 = octave.get(OctaveDouble.class, "x2");
final OctaveDouble x3 = octave.get(OctaveDouble.class, "x3");
final OctaveDouble x4 = octave.get(OctaveDouble.class, "x4");
octave.close();
assertEquals(0.0, x1.get(1, 3));
assertEquals(-1.0, x1.get(3, 1));
assertEquals(42.0, x2.get(1, 3));
assertEquals(0.0, x2.get(3, 1));
assertEquals(42.0, x3.get(1, 1, 2));
assertEquals(-1.0, x4.get(1, 1, 1));
}
