root / org.gvsig.proj / branches / refactor2018 / org.gvsig.proj / org.gvsig.proj.lib / org.gvsig.proj.lib.api / src / test / java / org / gvsig / proj / CoordinateTransformationIT.java @ 814
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1 | 12 | cordinyana | /* gvSIG. Desktop Geographic Information System.
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2 | *
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3 | * Copyright ? 2007-2012 gvSIG Association
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4 | *
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5 | * This program is free software; you can redistribute it and/or
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6 | * modify it under the terms of the GNU General Public License
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7 | * as published by the Free Software Foundation; either version 2
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8 | * of the License, or (at your option) any later version.
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9 | *
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10 | * This program is distributed in the hope that it will be useful,
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11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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13 | * GNU General Public License for more details.
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14 | *
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15 | * You should have received a copy of the GNU General Public License
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16 | * along with this program; if not, write to the Free Software
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17 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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18 | * MA 02110-1301, USA.
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19 | *
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20 | * For any additional information, do not hesitate to contact us
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21 | * at info AT gvsig.com, or visit our website www.gvsig.com.
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22 | */
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23 | package org.gvsig.proj; |
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24 | |||
25 | 807 | cmartinez | import org.gvsig.proj.catalog.TransformationDefinition; |
26 | 814 | cmartinez | import org.gvsig.proj.catalog.exception.NoninvertibleTransformException; |
27 | 12 | cordinyana | import org.gvsig.tools.junit.AbstractLibraryAutoInitTestCase; |
28 | |||
29 | /**
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30 | * {@link CoordinateTransformation} API acceptance tests.
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31 | *
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32 | * @author gvSIG Team
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33 | */
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34 | public abstract class CoordinateTransformationIT extends |
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35 | AbstractLibraryAutoInitTestCase { |
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36 | |||
37 | 17 | cordinyana | protected CoordinateReferenceSystem source;
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38 | protected CoordinateReferenceSystem target;
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39 | 12 | cordinyana | protected CoordinateTransformation transformation;
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40 | 805 | cmartinez | protected CoordinateReferenceSystemManager manager;
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41 | 12 | cordinyana | |
42 | protected void doSetUp() throws Exception { |
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43 | 805 | cmartinez | manager = createProjectionManager(); |
44 | 12 | cordinyana | source = createSourceProjection(); |
45 | target = createTargetProjection(); |
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46 | 805 | cmartinez | transformation = createTransformationFromDefinition(); |
47 | 12 | cordinyana | } |
48 | 805 | cmartinez | |
49 | /**
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50 | * Creates a {@link CoordinateReferenceSystemManager} instance.
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51 | *
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52 | * @return the {@link CoordinateReferenceSystemManager} instance
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53 | */
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54 | protected abstract CoordinateReferenceSystemManager createProjectionManager(); |
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55 | |||
56 | /**
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57 | * Returns the transformation definition to create the CoordinateTransformation
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58 | * to test.
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59 | *
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60 | * @return the authority name
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61 | */
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62 | protected abstract TransformationDefinition getTransformationDefinition(); |
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63 | 12 | cordinyana | |
64 | 805 | cmartinez | /**
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65 | * Creates the transformation to be tested
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66 | */
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67 | public CoordinateTransformation createTransformationFromDefinition() throws Exception { |
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68 | TransformationDefinition definition = getTransformationDefinition(); |
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69 | return manager.getCoordinateTransformation(definition);
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70 | } |
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71 | |||
72 | 18 | cordinyana | protected abstract CoordinateReferenceSystem createSourceProjection() |
73 | throws Exception; |
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74 | 12 | cordinyana | |
75 | 18 | cordinyana | protected abstract CoordinateReferenceSystem createTargetProjection() |
76 | throws Exception; |
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77 | 12 | cordinyana | |
78 | /**
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79 | * Test method for
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80 | 805 | cmartinez | * {@link org.gvsig.proj.CoordinateTransformation#getSource()}.
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81 | 12 | cordinyana | */
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82 | public void testGetSourceProjection() { |
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83 | 805 | cmartinez | assertEquals(source, transformation.getSource()); |
84 | 12 | cordinyana | } |
85 | |||
86 | /**
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87 | * Test method for
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88 | 805 | cmartinez | * {@link org.gvsig.proj.CoordinateTransformation#getTarget()}.
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89 | 12 | cordinyana | */
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90 | public void testGetTargetProjection() { |
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91 | 805 | cmartinez | assertEquals(target, transformation.getTarget()); |
92 | 12 | cordinyana | } |
93 | |||
94 | /**
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95 | * Test method for
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96 | 805 | cmartinez | * {@link org.gvsig.proj.CoordinateTransformation#getInverse()}.
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97 | 814 | cmartinez | * @throws NoninvertibleTransformException
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98 | 12 | cordinyana | */
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99 | 814 | cmartinez | public void testGetReverse() throws NoninvertibleTransformException { |
100 | 12 | cordinyana | CoordinateTransformation reverseTransformation = |
101 | 805 | cmartinez | transformation.getInverse(); |
102 | assertEquals(target, reverseTransformation.getSource()); |
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103 | assertEquals(source, reverseTransformation.getTarget()); |
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104 | 12 | cordinyana | } |
105 | |||
106 | 805 | cmartinez | /**
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107 | * The input point to test the transformation
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108 | *
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109 | * @return
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110 | */
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111 | public abstract double[] getInputPoint(); |
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112 | /**
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113 | * The output point to thest the transformation. This point
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114 | * should be a known result of applying the transformation on
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115 | * getInputPoint()
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116 | * @return
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117 | */
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118 | public abstract double[] getResultPoint(); |
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119 | /**
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120 | * Gets the maximum numeric tolerance to accept the result of
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121 | * the transformation as valid
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122 | *
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123 | * @return
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124 | */
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125 | public abstract double getResultTolerance(); |
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126 | |||
127 | /**
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128 | * Test method for
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129 | * {@link org.gvsig.proj.CoordinateTransformation#apply(double[])}.
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130 | */
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131 | public void testApplyTransformationInline() { |
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132 | double[] input = getInputPoint(); |
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133 | transformation.apply(input); |
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134 | assertTrue(pointsEquals(getResultPoint(), input, getResultTolerance())); |
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135 | } |
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136 | |||
137 | public boolean pointsEquals(double[] point1, double[] point2, double tolerance) { |
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138 | for (int i=0; i<point1.length; i++) { |
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139 | if (Math.abs(point1[i]-point2[i])>tolerance) { |
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140 | return false; |
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141 | } |
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142 | } |
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143 | return true; |
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144 | } |
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145 | |||
146 | /**
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147 | * Test method for
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148 | * {@link org.gvsig.proj.CoordinateTransformation#apply(double[])}.
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149 | */
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150 | public void testApplyTransformation() { |
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151 | double[] input = getInputPoint(); |
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152 | double[] transformed = new double[input.length]; |
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153 | transformation.apply(input, transformed); |
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154 | assertTrue(pointsEquals(getResultPoint(), transformed, getResultTolerance())); |
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155 | } |
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156 | |||
157 | /**
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158 | * Test method for
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159 | * {@link org.gvsig.proj.CoordinateTransformation#getInverse()}
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160 | * and
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161 | * {@link org.gvsig.proj.CoordinateTransformation#apply(double[])}.
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162 | 814 | cmartinez | * @throws NoninvertibleTransformException
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163 | 805 | cmartinez | */
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164 | 814 | cmartinez | public void testApplyInverseTransformation() throws NoninvertibleTransformException { |
165 | 805 | cmartinez | double[] input = getInputPoint(); |
166 | double[] transformed = new double[input.length]; |
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167 | transformation.apply(input, transformed); |
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168 | CoordinateTransformation reverseTransformation = |
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169 | transformation.getInverse(); |
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170 | reverseTransformation.apply(transformed); |
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171 | assertTrue(pointsEquals(input, transformed, getResultTolerance())); |
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172 | } |
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173 | 12 | cordinyana | } |