Examples with ParameterValueGroup org.opengis.parameter.ParameterValueGroup used on opensource projects

Example 61 with ParameterValueGroup

use of org.opengis.parameter.ParameterValueGroup in project sis by apache.

the class InverseOperationMethod method properties.

/**
 * Infers the properties to give to an inverse coordinate operation.
 * The returned map will contains three kind of information:
 *
 * <ul>
 *   <li>Metadata (domain of validity, accuracy)</li>
 *   <li>Parameter values, if possible</li>
 * </ul>
 *
 * This method copies accuracy and domain of validity metadata from the given operation.
 * We presume that the inverse operation has the same accuracy than the direct operation.
 *
 * <div class="note"><b>Note:</b>
 * in many cases, the inverse operation is numerically less accurate than the direct operation because it
 * uses approximations like series expansions or iterative methods. However the numerical errors caused by
 * those approximations are not of interest here, because they are usually much smaller than the inaccuracy
 * due to the stochastic nature of coordinate transformations (not to be confused with coordinate conversions;
 * see ISO 19111 for more information).</div>
 *
 * If the inverse of the given operation can be represented by inverting the sign of all numerical
 * parameter values, then this method copies also those parameters in a {@code "parameters"} entry.
 *
 * @param source  the operation for which to get the inverse parameters.
 * @param target  where to store the inverse parameters.
 */
static void properties(final SingleOperation source, final Map<String, Object> target) {
    target.put(SingleOperation.DOMAIN_OF_VALIDITY_KEY, source.getDomainOfValidity());
    final Collection<PositionalAccuracy> accuracy = source.getCoordinateOperationAccuracy();
    if (!Containers.isNullOrEmpty(accuracy)) {
        target.put(SingleOperation.COORDINATE_OPERATION_ACCURACY_KEY, accuracy.toArray(new PositionalAccuracy[accuracy.size()]));
    }
    /*
         * If the inverse of the given operation can be represented by inverting the sign of all numerical
         * parameter values, copies those parameters in a "parameters" entry in the properties map.
         * Otherwise does nothing.
         */
    final ParameterValueGroup parameters = source.getParameterValues();
    final ParameterValueGroup copy = parameters.getDescriptor().createValue();
    for (final GeneralParameterValue gp : parameters.values()) {
        if (gp instanceof ParameterValue<?>) {
            final ParameterValue<?> src = (ParameterValue<?>) gp;
            final Object value = src.getValue();
            if (value instanceof Number) {
                final ParameterDescriptor<?> descriptor = src.getDescriptor();
                final InternationalString remarks = descriptor.getRemarks();
                if (remarks != SignReversalComment.SAME) {
                    if (remarks != SignReversalComment.OPPOSITE) {
                        /*
                             * The parameter descriptor does not specify whether the values for the inverse operation
                             * have the same sign or opposite sign. We could heuristically presume that we can invert
                             * the sign if the minimum value has the opposite sign than the maximum value  (as in the
                             * [-10 … 10] range), but such assumption is dangerous. For example the values in a matrix
                             * could be bounded to a range like [-1 … 1], which would mislead above heuristic rule.
                             *
                             * Note that abandoning here does not mean that we will never know the parameter values.
                             * As a fallback, AbstractCoordinateOperation will try to get the parameter values from
                             * the MathTransform. This is the appropriate thing to do at least for Affine operation.
                             */
                        return;
                    }
                    /*
                         * The parameter value of the inverse operation is (or is presumed to be) the negative of
                         * the parameter value of the source operation.  We need to preserve units of measurement
                         * if they were specified.
                         */
                    final ParameterValue<?> tgt = copy.parameter(descriptor.getName().getCode());
                    final Unit<?> unit = src.getUnit();
                    if (unit != null) {
                        tgt.setValue(-src.doubleValue(), unit);
                    } else if (value instanceof Integer || value instanceof Short || value instanceof Byte) {
                        tgt.setValue(-src.intValue());
                    } else {
                        tgt.setValue(-src.doubleValue());
                    }
                    // No need to add 'tgt' to 'copy' since it was done by the call to copy.parameter(…).
                    continue;
                }
            }
        }
        copy.values().add(gp);
    }
    target.put(ReferencingServices.PARAMETERS_KEY, copy);
}

Example 62 with ParameterValueGroup

use of org.opengis.parameter.ParameterValueGroup in project sis by apache.

the class WKTUtilities method append.

/**
 * Appends a {@linkplain ParameterValue parameter} in a {@code PARAMETER[…]} element.
 * If the supplied parameter is actually a {@linkplain ParameterValueGroup parameter group},
 * all contained parameters will be flattened in a single list.
 *
 * @param  parameter  the parameter to append to the WKT, or {@code null} if none.
 * @param  formatter  the formatter where to append the parameter.
 */
public static void append(GeneralParameterValue parameter, final Formatter formatter) {
    if (parameter instanceof ParameterValueGroup) {
        boolean first = true;
        for (final GeneralParameterValue param : ((ParameterValueGroup) parameter).values()) {
            if (first) {
                formatter.newLine();
                first = false;
            }
            append(param, formatter);
        }
    }
    if (parameter instanceof ParameterValue<?>) {
        if (!(parameter instanceof FormattableObject)) {
            parameter = new DefaultParameterValue<>((ParameterValue<?>) parameter);
        }
        formatter.append((FormattableObject) parameter);
        formatter.newLine();
    }
}

Example 63 with ParameterValueGroup

use of org.opengis.parameter.ParameterValueGroup in project sis by apache.

the class CC_OperationMethod method store.

/**
 * Stores the given {@code parameters} into the given {@code addTo} collection.
 * This method copies only the <em>references</em> if possible. However is some
 * cases the values may need to be copied in new parameter instances.
 *
 * <div class="note"><b>Note:</b>
 * this code is defined in this {@code CC_OperationMethod} class instead than in the
 * {@link DefaultOperationMethod} class in the hope to reduce the amount of code processed
 * by the JVM in the common case where JAXB (un)marshalling is not needed.</div>
 *
 * @param  parameters    the parameters to add to the {@code addTo} collection.
 * @param  addTo         where to store the {@code parameters}.
 * @param  replacements  the replacements to apply in the {@code GeneralParameterValue} instances.
 */
public static void store(final GeneralParameterValue[] parameters, final Collection<GeneralParameterValue> addTo, final Map<GeneralParameterDescriptor, GeneralParameterDescriptor> replacements) {
    for (GeneralParameterValue p : parameters) {
        final GeneralParameterDescriptor replacement = replacements.get(p.getDescriptor());
        if (replacement != null) {
            if (p instanceof ParameterValue<?>) {
                final ParameterValue<?> source = (ParameterValue<?>) p;
                final ParameterValue<?> target = new DefaultParameterValue<>((ParameterDescriptor<?>) replacement);
                final Object value = source.getValue();
                final Unit<?> unit = source.getUnit();
                if (unit == null) {
                    target.setValue(value);
                } else if (value instanceof double[]) {
                    target.setValue((double[]) value, unit);
                } else {
                    target.setValue(((Number) value).doubleValue(), unit);
                }
                p = target;
            } else if (p instanceof ParameterValueGroup) {
                final ParameterValueGroup source = (ParameterValueGroup) p;
                final ParameterValueGroup target = new DefaultParameterValueGroup((ParameterDescriptorGroup) replacement);
                final Collection<GeneralParameterValue> values = source.values();
                store(values.toArray(new GeneralParameterValue[values.size()]), target.values(), replacements);
                p = target;
            }
        }
        addTo.add(p);
    }
}

Example 64 with ParameterValueGroup

use of org.opengis.parameter.ParameterValueGroup in project sis by apache.

the class Affine method identity.

/**
 * Returns parameter values for an identity transform of the given input and output dimensions.
 * Callers can modify the returned parameters if desired.
 *
 * @param  dimension  the number of source and target dimensions.
 * @return parameters for an identity transform of the given dimensions.
 *
 * @since 0.8
 */
public static ParameterValueGroup identity(int dimension) {
    final ParameterValueGroup values = TensorParameters.WKT1.createValueGroup(Collections.singletonMap(NAME_KEY, Constants.AFFINE));
    values.parameter(Constants.NUM_COL).setValue(++dimension);
    values.parameter(Constants.NUM_ROW).setValue(dimension);
    return values;
}

Example 65 with ParameterValueGroup

use of org.opengis.parameter.ParameterValueGroup in project sis by apache.

the class TensorValuesTest method testAlphaNumericDescriptors.

/**
 * Tests {@link TensorValues#descriptors()} using alphanumeric (EPSG) contentions.
 */
@Test
@DependsOnMethod("testDescriptors")
public void testAlphaNumericDescriptors() {
    final Double N0 = 0.0;
    final Double N1 = 1.0;
    final Integer N3 = 3;
    final ParameterValueGroup group = createAlphaNumeric();
    final List<GeneralParameterDescriptor> descriptors = group.getDescriptor().descriptors();
    assertDescriptorEquals(NUM_ROW, N3, descriptors.get(0));
    assertDescriptorEquals(NUM_COL, N3, descriptors.get(1));
    assertDescriptorEquals("A0", N1, descriptors.get(2));
    assertDescriptorEquals("A1", N0, descriptors.get(3));
    assertDescriptorEquals("A2", N0, descriptors.get(4));
    assertDescriptorEquals("B0", N0, descriptors.get(5));
    assertDescriptorEquals("B1", N1, descriptors.get(6));
    assertDescriptorEquals("B2", N0, descriptors.get(7));
    assertDescriptorEquals("C0", N0, descriptors.get(8));
    assertDescriptorEquals("C1", N0, descriptors.get(9));
    assertDescriptorEquals("C2", N1, descriptors.get(10));
    assertEquals("size", 11, descriptors.size());
}