source: trunk/gdal/swig/csharp/apps/ogrinfo.cs

Last change on this file was 35222, checked in by Kurt Schwehr, 8 years ago

Remove trailing whitespace
  • Property svn:eol-style set to native
  • Property svn:keywords set to Author Date Id Revision
File size: 8.1 KB
Line 
1/******************************************************************************
2 * $Id: ogrinfo.cs 35222 2016-08-28 06:06:11Z goatbar $
3 *
4 * Name: ogrinfo.cs
5 * Project: GDAL CSharp Interface
6 * Purpose: A sample app to dump information from a spatial data source.
7 * Author: Tamas Szekeres, szekerest@gmail.com
8 *
9 ******************************************************************************
10 * Copyright (c) 2007, Tamas Szekeres
11 *
12 * Permission is hereby granted, free of charge, to any person obtaining a
13 * copy of this software and associated documentation files (the "Software"),
14 * to deal in the Software without restriction, including without limitation
15 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
16 * and/or sell copies of the Software, and to permit persons to whom the
17 * Software is furnished to do so, subject to the following conditions:
18 *
19 * The above copyright notice and this permission notice shall be included
20 * in all copies or substantial portions of the Software.
21 *
22 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
23 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
24 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
25 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
26 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
27 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
28 * DEALINGS IN THE SOFTWARE.
29 *****************************************************************************/
30
31using System;
32
33using OSGeo.OGR;
34using OSGeo.OSR;
35
36
37/**
38
39 * <p>Title: GDAL C# ogrinfo example.</p>
40 * <p>Description: A sample app to dump information from a spatial data source.</p>
41 * @author Tamas Szekeres (szekerest@gmail.com)
42 * @version 1.0
43 */
44
45
46
47/// <summary>
48/// A C# based sample to dump information from a data source.
49/// </summary>
50
51class OGRInfo {
52
53 public static void usage()
54
55 {
56 Console.WriteLine("usage: ogrinfo {data source name}");
57 System.Environment.Exit(-1);
58 }
59
60 public static void Main(string[] args) {
61
62 if (args.Length != 1) usage();
63
64 // Using early initialization of System.Console
65 Console.WriteLine("");
66
67 /* -------------------------------------------------------------------- */
68 /* Register format(s). */
69 /* -------------------------------------------------------------------- */
70 Ogr.RegisterAll();
71
72 /* -------------------------------------------------------------------- */
73 /* Open data source. */
74 /* -------------------------------------------------------------------- */
75 DataSource ds = Ogr.Open( args[0], 0 );
76
77 if (ds == null) {
78 Console.WriteLine("Can't open " + args[0]);
79 System.Environment.Exit(-1);
80 }
81
82 /* -------------------------------------------------------------------- */
83 /* Get driver */
84 /* -------------------------------------------------------------------- */
85 Driver drv = ds.GetDriver();
86
87 if (drv == null)
88 {
89 Console.WriteLine("Can't get driver.");
90 System.Environment.Exit(-1);
91 }
92 // TODO: drv.name is still unsafe with lazy initialization (Bug 1339)
93 Console.WriteLine("Using driver " + drv.name);
94
95 /* -------------------------------------------------------------------- */
96 /* Iterating through the layers */
97 /* -------------------------------------------------------------------- */
98
99 for( int iLayer = 0; iLayer < ds.GetLayerCount(); iLayer++ )
100 {
101 Layer layer = ds.GetLayerByIndex(iLayer);
102
103 if( layer == null )
104 {
105 Console.WriteLine( "FAILURE: Couldn't fetch advertised layer " + iLayer );
106 System.Environment.Exit(-1);
107 }
108 ReportLayer(layer);
109 }
110 }
111
112 public static void ReportLayer(Layer layer)
113 {
114 FeatureDefn def = layer.GetLayerDefn();
115 Console.WriteLine( "Layer name: " + def.GetName() );
116 Console.WriteLine( "Feature Count: " + layer.GetFeatureCount(1) );
117 Envelope ext = new Envelope();
118 layer.GetExtent(ext, 1);
119 Console.WriteLine( "Extent: " + ext.MinX + "," + ext.MaxX + "," +
120 ext.MinY + "," + ext.MaxY);
121
122 /* -------------------------------------------------------------------- */
123 /* Reading the spatial reference */
124 /* -------------------------------------------------------------------- */
125 OSGeo.OSR.SpatialReference sr = layer.GetSpatialRef();
126 string srs_wkt;
127 if ( sr != null )
128 {
129 sr.ExportToPrettyWkt( out srs_wkt, 1 );
130 }
131 else
132 srs_wkt = "(unknown)";
133
134
135 Console.WriteLine( "Layer SRS WKT: " + srs_wkt );
136
137 /* -------------------------------------------------------------------- */
138 /* Reading the fields */
139 /* -------------------------------------------------------------------- */
140 Console.WriteLine("Field definition:");
141 for( int iAttr = 0; iAttr < def.GetFieldCount(); iAttr++ )
142 {
143 FieldDefn fdef = def.GetFieldDefn( iAttr );
144
145 Console.WriteLine( fdef.GetNameRef() + ": " +
146 fdef.GetFieldTypeName( fdef.GetFieldType() ) + " (" +
147 fdef.GetWidth() + "." +
148 fdef.GetPrecision() + ")");
149 }
150
151 /* -------------------------------------------------------------------- */
152 /* Reading the shapes */
153 /* -------------------------------------------------------------------- */
154 Console.WriteLine( "" );
155 Feature feat;
156 while( (feat = layer.GetNextFeature()) != null )
157 {
158 ReportFeature(feat, def);
159 feat.Dispose();
160 }
161 }
162
163 public static void ReportFeature(Feature feat, FeatureDefn def)
164 {
165 Console.WriteLine( "Feature(" + def.GetName() + "): " + feat.GetFID() );
166 for( int iField = 0; iField < feat.GetFieldCount(); iField++ )
167 {
168 FieldDefn fdef = def.GetFieldDefn( iField );
169
170 Console.Write( fdef.GetNameRef() + " (" +
171 fdef.GetFieldTypeName(fdef.GetFieldType()) + ") = ");
172
173 if( feat.IsFieldSet( iField ) )
174 {
175 if (fdef.GetFieldType() == FieldType.OFTStringList)
176 {
177 string[] sList = feat.GetFieldAsStringList(iField);
178 foreach (string s in sList)
179 {
180 Console.Write("\"" + s + "\" ");
181 }
182 Console.WriteLine();
183 }
184 else if (fdef.GetFieldType() == FieldType.OFTIntegerList)
185 {
186 int count;
187 int[] iList = feat.GetFieldAsIntegerList(iField, out count);
188 for (int i = 0; i < count; i++)
189 {
190 Console.Write(iList[i] + " ");
191 }
192 Console.WriteLine();
193 }
194 else if (fdef.GetFieldType() == FieldType.OFTRealList)
195 {
196 int count;
197 double[] iList = feat.GetFieldAsDoubleList(iField, out count);
198 for (int i = 0; i < count; i++)
199 {
200 Console.Write(iList[i].ToString() + " ");
201 }
202 Console.WriteLine();
203 }
204 else
205 Console.WriteLine(feat.GetFieldAsString(iField));
206 }
207 else
208 Console.WriteLine( "(null)" );
209
210 }
211
212 if( feat.GetStyleString() != null )
213 Console.WriteLine( " Style = " + feat.GetStyleString() );
214
215 Geometry geom = feat.GetGeometryRef();
216 if( geom != null )
217 {
218 Console.WriteLine( " " + geom.GetGeometryName() +
219 "(" + geom.GetGeometryType() + ")" );
220 Geometry sub_geom;
221 for (int i = 0; i < geom.GetGeometryCount(); i++)
222 {
223 sub_geom = geom.GetGeometryRef(i);
224 if ( sub_geom != null )
225 {
226 Console.WriteLine( " subgeom" + i + ": " + sub_geom.GetGeometryName() +
227 "(" + sub_geom.GetGeometryType() + ")" );
228 }
229 }
230 Envelope env = new Envelope();
231 geom.GetEnvelope(env);
232 Console.WriteLine(" ENVELOPE: " + env.MinX + "," + env.MaxX + "," +
233 env.MinY + "," + env.MaxY);
234
235 string geom_wkt;
236 geom.ExportToWkt(out geom_wkt);
237 Console.WriteLine(" " + geom_wkt);
238 }
239
240 Console.WriteLine( "" );
241 }
242}
Note: See TracBrowser for help on using the repository browser.