svn-gvsig-desktop / trunk / org.gvsig.desktop / org.gvsig.desktop.compat.cdc / org.gvsig.fmap.geometry / org.gvsig.fmap.geometry.jts / src / main / java / org / gvsig / fmap / geom / jts / primitive / curve / spline / Spline2D.java @ 42283
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1 | 42267 | fdiaz | /* gvSIG. Desktop Geographic Information System.
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2 | *
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3 | * Copyright ? 2007-2015 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.fmap.geom.jts.primitive.curve.spline; |
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24 | |||
25 | 42283 | fdiaz | import java.util.ArrayList; |
26 | |||
27 | 42267 | fdiaz | import com.vividsolutions.jts.geom.Coordinate; |
28 | |||
29 | import org.gvsig.fmap.geom.Geometry; |
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30 | 42269 | fdiaz | import org.gvsig.fmap.geom.GeometryException; |
31 | import org.gvsig.fmap.geom.aggregate.MultiLine; |
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32 | import org.gvsig.fmap.geom.aggregate.MultiPoint; |
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33 | import org.gvsig.fmap.geom.aggregate.MultiPolygon; |
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34 | import org.gvsig.fmap.geom.jts.aggregate.MultiLine2D; |
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35 | import org.gvsig.fmap.geom.jts.aggregate.MultiPoint2D; |
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36 | import org.gvsig.fmap.geom.jts.aggregate.MultiPolygon2D; |
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37 | 42267 | fdiaz | import org.gvsig.fmap.geom.jts.primitive.curve.line.Line2D; |
38 | import org.gvsig.fmap.geom.jts.primitive.point.Point2D; |
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39 | 42269 | fdiaz | import org.gvsig.fmap.geom.jts.primitive.surface.polygon.Polygon2D; |
40 | 42267 | fdiaz | import org.gvsig.fmap.geom.jts.util.ArrayListCoordinateSequence; |
41 | import org.gvsig.fmap.geom.jts.util.ReadOnlyCoordinates; |
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42 | 42269 | fdiaz | import org.gvsig.fmap.geom.primitive.Line; |
43 | 42267 | fdiaz | import org.gvsig.fmap.geom.primitive.Point; |
44 | 42269 | fdiaz | import org.gvsig.fmap.geom.primitive.Polygon; |
45 | 42267 | fdiaz | |
46 | |||
47 | /**
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48 | * @author fdiaz
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49 | *
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50 | */
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51 | public class Spline2D extends AbstractSpline { |
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52 | |||
53 | /**
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54 | *
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55 | */
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56 | private static final long serialVersionUID = -4618430296292660668L; |
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57 | |||
58 | /**
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59 | * @param subtype
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60 | */
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61 | 42283 | fdiaz | public Spline2D() {
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62 | 42267 | fdiaz | super(Geometry.SUBTYPES.GEOM2D);
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63 | 42283 | fdiaz | this.coordinates = new ArrayListCoordinateSequence(new ArrayList<Coordinate>()); |
64 | 42267 | fdiaz | } |
65 | |||
66 | /**
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67 | *
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68 | */
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69 | public Spline2D(Coordinate[] coordinates) { |
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70 | this();
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71 | this.coordinates = new ArrayListCoordinateSequence(new ReadOnlyCoordinates(coordinates)); |
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72 | if (coordinates.length < 1) { |
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73 | anyVertex = new Point2D(0, 0); |
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74 | } else {
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75 | anyVertex = new Point2D(coordinates[0].x, coordinates[0].y); |
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76 | } |
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77 | } |
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78 | |||
79 | /* (non-Javadoc)
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80 | * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double)
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81 | */
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82 | public void addVertex(double x, double y) { |
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83 | this.addVertex(new Point2D(x, y)); |
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84 | } |
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85 | |||
86 | /* (non-Javadoc)
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87 | * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#addVertex(double, double, double)
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88 | */
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89 | public void addVertex(double x, double y, double z) { |
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90 | String message = "Can't add x,y,z coordinate to SPLine2D."; |
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91 | notifyDeprecated(message); |
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92 | throw new UnsupportedOperationException(message); |
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93 | } |
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94 | |||
95 | /* (non-Javadoc)
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96 | * @see org.gvsig.fmap.geom.Geometry#cloneGeometry()
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97 | */
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98 | public Geometry cloneGeometry() {
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99 | 42283 | fdiaz | return new Spline2D(cloneCoordinates().toCoordinateArray()); |
100 | 42267 | fdiaz | } |
101 | |||
102 | /* (non-Javadoc)
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103 | * @see org.gvsig.fmap.geom.jts.primitive.curve.spline.AbstractSpline#fixPoint(org.gvsig.fmap.geom.primitive.Point)
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104 | */
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105 | @Override
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106 | protected Point fixPoint(Point point) { |
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107 | if (point instanceof Point2D) { |
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108 | return point;
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109 | } else {
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110 | return new Point2D(point.getX(), point.getY()); |
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111 | } |
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112 | } |
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113 | |||
114 | /* (non-Javadoc)
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115 | * @see org.gvsig.fmap.geom.jts.primitive.curve.spline.AbstractSpline#getSplineCoordinates()
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116 | */
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117 | @Override
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118 | protected ArrayListCoordinateSequence getSplineCoordinates() {
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119 | ArrayListCoordinateSequence splineCoordinates = new ArrayListCoordinateSequence();
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120 | |||
121 | if (splineCoordinates == null || splineCoordinates.size() == 0) { |
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122 | int num = coordinates.size();
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123 | double[] px = new double[num]; |
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124 | double[] py = new double[num]; |
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125 | for (int i = 0; i < num; i++) { |
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126 | Coordinate coord = coordinates.get(i); |
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127 | px[i] = coord.x; |
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128 | py[i] = coord.y; |
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129 | } |
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130 | Spline splineX = new Spline(px);
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131 | Spline splineY = new Spline(py);
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132 | splineCoordinates.add(coordinates.get(0));
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133 | for (int i = 0; i < coordinates.size() - 1; i++) { |
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134 | for (int t = 1; t <= SUBSEGMENTS; t++) { |
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135 | if ((t == SUBSEGMENTS) && (i == (coordinates.size() - 2))) { |
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136 | // We don't calculate the last point to avoid a possible
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137 | // error precision with floating point numbers.
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138 | splineCoordinates.add(new Coordinate(px[px.length - 1], py[px.length - 1])); |
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139 | } else {
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140 | double x1 = splineX.fn(i, ((double) t) / SUBSEGMENTS); |
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141 | double y1 = splineY.fn(i, ((double) t) / SUBSEGMENTS); |
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142 | splineCoordinates.add(new Coordinate(x1, y1));
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143 | } |
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144 | } |
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145 | } |
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146 | } |
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147 | return splineCoordinates;
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148 | |||
149 | } |
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150 | |||
151 | |||
152 | 42269 | fdiaz | /* (non-Javadoc)
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153 | * @see org.gvsig.fmap.geom.primitive.Line#toPoints()
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154 | */
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155 | public MultiPoint toPoints() throws GeometryException { |
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156 | MultiPoint multiPoint = new MultiPoint2D();
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157 | 42283 | fdiaz | Coordinate[] coordinates = getSplineCoordinates().toCoordinateArray();
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158 | 42271 | fdiaz | multiPoint.ensureCapacity(coordinates.length); |
159 | 42269 | fdiaz | for (int i = 0; i < coordinates.length; i++) { |
160 | multiPoint.addPoint(new Point2D(coordinates[i])); |
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161 | } |
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162 | return multiPoint;
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163 | } |
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164 | |||
165 | /* (non-Javadoc)
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166 | * @see org.gvsig.fmap.geom.primitive.Line#toLines()
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167 | */
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168 | public MultiLine toLines() throws GeometryException { |
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169 | MultiLine multiLine = new MultiLine2D();
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170 | 42283 | fdiaz | Line line = new Line2D(getSplineCoordinates().toCoordinateArray()); //getJTS().getCoordinates()); |
171 | 42269 | fdiaz | multiLine.addPrimitive(line); |
172 | return multiLine;
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173 | } |
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174 | |||
175 | /* (non-Javadoc)
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176 | * @see org.gvsig.fmap.geom.primitive.Line#toPolygons()
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177 | */
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178 | public MultiPolygon toPolygons() throws GeometryException { |
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179 | MultiPolygon multiPolygon = new MultiPolygon2D();
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180 | 42283 | fdiaz | Polygon polygon = new Polygon2D(getSplineCoordinates().toCoordinateArray()); |
181 | 42269 | fdiaz | multiPolygon.addPrimitive(polygon); |
182 | return multiPolygon;
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183 | } |
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184 | |||
185 | 42283 | fdiaz | |
186 | /* (non-Javadoc)
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187 | * @see org.gvsig.fmap.geom.primitive.OrientablePrimitive#getVertex(int)
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188 | */
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189 | public Point getVertex(int index) { |
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190 | Point2D vertex = new Point2D(this.coordinates.get(index)); |
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191 | anyVertex = vertex; |
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192 | return vertex;
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193 | } |
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194 | |||
195 | 42267 | fdiaz | } |