public void testInterpolate() {
MCoordinate mc0NaN = MCoordinate.create2d(0.0, 0.0);
MCoordinate mc0 = MCoordinate.create2dWithMeasure(0.0, 0.0, 0.0);
MCoordinate mc2NaN = MCoordinate.create2d(2.0, 0.0);
MCoordinate mc5NaN = MCoordinate.create2d(5.0, 0.0);
MCoordinate mc10NaN = MCoordinate.create2d(10.0, 0.0);
MCoordinate mc10 = MCoordinate.create2dWithMeasure(10.0, 0.0, 10.0);
// Internal coordinate measures are not defined, outer measures are
// 0-10, total 2d length is 10
MLineString line =
mgeomFactory.createMLineString(new MCoordinate[] {mc0, mc2NaN, mc5NaN, mc10});
MLineString lineBeginNaN =
mgeomFactory.createMLineString(new MCoordinate[] {mc0NaN, mc2NaN, mc5NaN, mc10});
MLineString lineEndNaN =
mgeomFactory.createMLineString(new MCoordinate[] {mc0, mc2NaN, mc5NaN, mc10NaN});
assertTrue(DoubleComparator.equals(line.getLength(), 10));
assertTrue(DoubleComparator.equals(lineBeginNaN.getLength(), 10));
assertTrue(DoubleComparator.equals(lineEndNaN.getLength(), 10));
line.interpolate(mc0.m, mc10.m);
lineBeginNaN.interpolate(mc0.m, mc10.m);
lineEndNaN.interpolate(mc0.m, mc10.m);
assertTrue(line.isMonotone(false));
assertTrue(line.isMonotone(true));
assertTrue(lineBeginNaN.isMonotone(false));
assertTrue(lineBeginNaN.isMonotone(true));
assertTrue(lineEndNaN.isMonotone(false));
assertTrue(lineEndNaN.isMonotone(true));
double[] expectedM = new double[] {mc0.m, 2.0, 5.0, mc10.m};
for (int i = 0; i < expectedM.length; i++) {
double actualMLine = line.getCoordinateSequence().getOrdinate(i, CoordinateSequence.M);
double actualBeginNaN =
lineBeginNaN.getCoordinateSequence().getOrdinate(i, CoordinateSequence.M);
double actualEndNaN = lineEndNaN.getCoordinateSequence().getOrdinate(i, CoordinateSequence.M);
assertTrue(DoubleComparator.equals(expectedM[i], actualMLine));
assertTrue(DoubleComparator.equals(expectedM[i], actualBeginNaN));
assertTrue(DoubleComparator.equals(expectedM[i], actualEndNaN));
}
// Test Continuous case by interpolating with begin and end measures
// equal
double continuousMeasure = 0.0D;
line.interpolate(continuousMeasure, continuousMeasure);
double[] measures = line.getMeasures();
for (int i = 0; i < measures.length; i++)
assertTrue(DoubleComparator.equals(measures[i], continuousMeasure));
}
