public void testmeasureOnLength() { arbitraryLine.measureOnLength(false); double maxM = arbitraryLine.getMaxM(); double minM = arbitraryLine.getMinM(); assertEquals(maxM, arbitraryLine.getLength(), DoubleComparator.defaultNumericalPrecision()); assertEquals(minM, 0.0d, DoubleComparator.defaultNumericalPrecision()); MCoordinate mco = (MCoordinate) arbitraryLine.getCoordinateN(arbitraryLine.getNumPoints() - 1); assertEquals(mco.m, maxM, DoubleComparator.defaultNumericalPrecision()); mco = (MCoordinate) arbitraryLine.getCoordinateN(0); assertEquals(mco.m, minM, DoubleComparator.defaultNumericalPrecision()); }
public void testGetCoordinatesBetween() { try { // what if the null value is passed CoordinateSequence[] cs = nullLine.getCoordinatesBetween(0.0, 5.0); assertTrue("cs.length = " + cs.length + ". Should be 1", cs.length == 1); assertEquals(cs[0].size(), 0); arbitraryLine.measureOnLength(false); // what if from/to is outside of the range of values double maxM = arbitraryLine.getMaxM(); cs = arbitraryLine.getCoordinatesBetween(maxM + 1.0, maxM + 10.0); // check for several ascending M-values int minIdx = (int) (Math.random() * (arbitraryLine.getNumPoints() - 1)); int maxIdx = Math.min((arbitraryLine.getNumPoints() - 1), minIdx + 10); double minM = ((MCoordinate) arbitraryLine.getCoordinateN(minIdx)).m; maxM = ((MCoordinate) arbitraryLine.getCoordinateN(maxIdx)).m; cs = arbitraryLine.getCoordinatesBetween(minM, maxM); assertNotNull(cs); assertTrue(cs.length > 0); Coordinate[] coar = cs[0].toCoordinateArray(); int j = 0; for (int i = minIdx; i <= maxIdx; i++) { assertEquals((MCoordinate) arbitraryLine.getCoordinateN(i), coar[j]); j++; } minM = Math.max(0.0, minM - Math.random() * 10); cs = arbitraryLine.getCoordinatesBetween(minM, maxM); coar = cs[0].toCoordinateArray(); MCoordinate mctest = (MCoordinate) coar[0]; MCoordinate mcexp = (MCoordinate) arbitraryLine.getCoordinateAtM(minM); assertEquals(mcexp, mctest); assertEquals(mctest.m, minM, DoubleComparator.defaultNumericalPrecision()); maxM = Math.min(arbitraryLine.getLength(), maxM + Math.random() * 10); cs = arbitraryLine.getCoordinatesBetween(minM, maxM); coar = cs[0].toCoordinateArray(); mctest = (MCoordinate) coar[coar.length - 1]; mcexp = (MCoordinate) arbitraryLine.getCoordinateAtM(maxM); assertEquals(mcexp.x, mctest.x, Math.ulp(mcexp.x) * 100); assertEquals(mcexp.y, mctest.y, Math.ulp(mcexp.y) * 100); assertEquals(mctest.m, maxM, DoubleComparator.defaultNumericalPrecision()); } catch (Exception e) { e.printStackTrace(); assertTrue(false); // should never reach here } }