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| 1 | +/* |
| 2 | + Copyright 1995-2018 Esri |
| 3 | +
|
| 4 | + Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | + you may not use this file except in compliance with the License. |
| 6 | + You may obtain a copy of the License at |
| 7 | +
|
| 8 | + http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | +
|
| 10 | + Unless required by applicable law or agreed to in writing, software |
| 11 | + distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | + WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | + See the License for the specific language governing permissions and |
| 14 | + limitations under the License. |
| 15 | +
|
| 16 | + For additional information, contact: |
| 17 | + Environmental Systems Research Institute, Inc. |
| 18 | + Attn: Contracts Dept |
| 19 | + 380 New York Street |
| 20 | + Redlands, California, USA 92373 |
| 21 | +
|
| 22 | + |
| 23 | + */ |
| 24 | +package com.esri.core.geometry; |
| 25 | + |
| 26 | +import java.util.ArrayList; |
| 27 | +import java.util.List; |
| 28 | + |
| 29 | +import com.esri.core.geometry.ogc.OGCConcreteGeometryCollection; |
| 30 | +import com.esri.core.geometry.ogc.OGCGeometry; |
| 31 | +import com.esri.core.geometry.ogc.OGCGeometryCollection; |
| 32 | + |
| 33 | +//An internal helper class. Do not use. |
| 34 | +public class OGCStructureInternal { |
| 35 | + private static class EditShapeCursor extends GeometryCursor { |
| 36 | + EditShape m_shape; |
| 37 | + int m_geom; |
| 38 | + int m_index; |
| 39 | + |
| 40 | + EditShapeCursor(EditShape shape, int index) { |
| 41 | + m_shape = shape; |
| 42 | + m_geom = -1; |
| 43 | + m_index = index; |
| 44 | + } |
| 45 | + @Override |
| 46 | + public Geometry next() { |
| 47 | + if (m_shape != null) { |
| 48 | + if (m_geom == -1) |
| 49 | + m_geom = m_shape.getFirstGeometry(); |
| 50 | + else |
| 51 | + m_geom = m_shape.getNextGeometry(m_geom); |
| 52 | + |
| 53 | + if (m_geom == -1) { |
| 54 | + m_shape = null; |
| 55 | + } |
| 56 | + else { |
| 57 | + return m_shape.getGeometry(m_geom); |
| 58 | + } |
| 59 | + |
| 60 | + } |
| 61 | + |
| 62 | + return null; |
| 63 | + } |
| 64 | + |
| 65 | + @Override |
| 66 | + public int getGeometryID() { |
| 67 | + return m_shape.getGeometryUserIndex(m_geom, m_index); |
| 68 | + } |
| 69 | + |
| 70 | + }; |
| 71 | + |
| 72 | + public static GeometryCursor prepare_for_ops_(GeometryCursor geoms, SpatialReference sr) { |
| 73 | + assert(geoms != null); |
| 74 | + EditShape editShape = new EditShape(); |
| 75 | + int geomIndex = editShape.createGeometryUserIndex(); |
| 76 | + for (Geometry g = geoms.next(); g != null; g = geoms.next()) { |
| 77 | + int egeom = editShape.addGeometry(g); |
| 78 | + editShape.setGeometryUserIndex(egeom, geomIndex, geoms.getGeometryID()); |
| 79 | + } |
| 80 | + |
| 81 | + Envelope2D env = editShape.getEnvelope2D(); |
| 82 | + double tolerance = InternalUtils.calculateToleranceFromGeometry(sr, |
| 83 | + env, true); |
| 84 | + |
| 85 | + CrackAndCluster.execute(editShape, tolerance, null, true); |
| 86 | + return OperatorSimplifyOGC.local().execute(new EditShapeCursor(editShape, geomIndex), sr, false, null); |
| 87 | + } |
| 88 | +} |
| 89 | + |
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