1 : /******************************************************************************
2 : * $Id: tigerpolygoncorrections.cpp 10645 2007-01-18 02:22:39Z warmerdam $
3 : *
4 : * Project: TIGER/Line Translator
5 : * Purpose: Implements TigerPolygonCorrections, providing access to .RTB files.
6 : * Author: Mark Phillips, mbp@geomtech.com
7 : *
8 : ******************************************************************************
9 : * Copyright (c) 2002, Frank Warmerdam, Mark Phillips
10 : *
11 : * Permission is hereby granted, free of charge, to any person obtaining a
12 : * copy of this software and associated documentation files (the "Software"),
13 : * to deal in the Software without restriction, including without limitation
14 : * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 : * and/or sell copies of the Software, and to permit persons to whom the
16 : * Software is furnished to do so, subject to the following conditions:
17 : *
18 : * The above copyright notice and this permission notice shall be included
19 : * in all copies or substantial portions of the Software.
20 : *
21 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 : * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 : * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 : * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 : * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 : * DEALINGS IN THE SOFTWARE.
28 : ****************************************************************************/
29 :
30 : #include "ogr_tiger.h"
31 : #include "cpl_conv.h"
32 :
33 : CPL_CVSID("$Id: tigerpolygoncorrections.cpp 10645 2007-01-18 02:22:39Z warmerdam $");
34 :
35 : #define FILE_CODE "B"
36 :
37 : static TigerFieldInfo rtB_fields[] = {
38 : // fieldname fmt type OFTType beg end len bDefine bSet bWrite
39 : { "MODULE", ' ', ' ', OFTString, 0, 0, 8, 1, 0, 0 },
40 : { "FILE", 'L', 'N', OFTInteger, 6, 10, 5, 1, 1, 1 },
41 : { "CENID", 'L', 'A', OFTString, 11, 15, 5, 1, 1, 1 },
42 : { "POLYID", 'R', 'N', OFTInteger, 16, 25, 10, 1, 1, 1 },
43 : { "STATECQ", 'L', 'N', OFTInteger, 26, 27, 2, 1, 1, 1 },
44 : { "COUNTYCQ", 'L', 'N', OFTInteger, 28, 30, 3, 1, 1, 1 },
45 : { "TRACTCQ", 'L', 'N', OFTInteger, 31, 36, 6, 1, 1, 1 },
46 : { "BLOCKCQ", 'L', 'A', OFTString, 37, 41, 5, 1, 1, 1 },
47 : { "AIANHHFPCQ", 'L', 'N', OFTInteger, 42, 46, 5, 1, 1, 1 },
48 : { "AIANHHCQ", 'L', 'N', OFTInteger, 47, 50, 4, 1, 1, 1 },
49 : { "AIHHTLICQ", 'L', 'A', OFTString, 51, 51, 1, 1, 1, 1 },
50 : { "AITSCECQ", 'L', 'N', OFTInteger, 52, 54, 3, 1, 1, 1 },
51 : { "AITSCQ", 'L', 'N', OFTInteger, 55, 59, 5, 1, 1, 1 },
52 : { "ANRCCQ", 'L', 'N', OFTInteger, 60, 64, 5, 1, 1, 1 },
53 : { "CONCITCQ", 'L', 'N', OFTInteger, 65, 69, 5, 1, 1, 1 },
54 : { "COUSUBCQ", 'L', 'N', OFTInteger, 70, 74, 5, 1, 1, 1 },
55 : { "SUBMCDCQ", 'L', 'N', OFTInteger, 75, 79, 5, 1, 1, 1 },
56 : { "PLACECQ", 'L', 'N', OFTInteger, 80, 84, 5, 1, 1, 1 },
57 : { "UACC", 'L', 'N', OFTInteger, 85, 89, 5, 1, 1, 1 },
58 : { "URCC", 'L', 'A', OFTString, 90, 90, 1, 1, 1, 1 },
59 : { "RS-B1", 'L', 'A', OFTString, 91, 98, 12, 1, 1, 1 },
60 : };
61 : static TigerRecordInfo rtB_info =
62 : {
63 : rtB_fields,
64 : sizeof(rtB_fields) / sizeof(TigerFieldInfo),
65 : 98
66 : };
67 :
68 : /************************************************************************/
69 : /* TigerPolygonCorrections() */
70 : /************************************************************************/
71 :
72 : TigerPolygonCorrections::TigerPolygonCorrections( OGRTigerDataSource * poDSIn,
73 0 : const char * pszPrototypeModule )
74 :
75 : {
76 0 : OGRFieldDefn oField("",OFTInteger);
77 :
78 0 : poDS = poDSIn;
79 0 : poFeatureDefn = new OGRFeatureDefn( "PolygonCorrections" );
80 0 : poFeatureDefn->Reference();
81 0 : poFeatureDefn->SetGeomType( wkbNone );
82 :
83 0 : psRTBInfo = &rtB_info;
84 :
85 : /* -------------------------------------------------------------------- */
86 : /* Fields from type B record. */
87 : /* -------------------------------------------------------------------- */
88 :
89 0 : AddFieldDefns( psRTBInfo, poFeatureDefn );
90 0 : }
91 :
92 : /************************************************************************/
93 : /* ~TigerPolygonCorrections() */
94 : /************************************************************************/
95 :
96 0 : TigerPolygonCorrections::~TigerPolygonCorrections()
97 :
98 : {
99 0 : }
100 :
101 : /************************************************************************/
102 : /* SetModule() */
103 : /************************************************************************/
104 :
105 0 : int TigerPolygonCorrections::SetModule( const char * pszModule )
106 :
107 : {
108 0 : if( !OpenFile( pszModule, FILE_CODE ) )
109 0 : return FALSE;
110 :
111 0 : EstablishFeatureCount();
112 :
113 0 : return TRUE;
114 : }
115 :
116 : /************************************************************************/
117 : /* GetFeature() */
118 : /************************************************************************/
119 :
120 0 : OGRFeature *TigerPolygonCorrections::GetFeature( int nRecordId )
121 :
122 : {
123 : char achRecord[OGR_TIGER_RECBUF_LEN];
124 :
125 0 : if( nRecordId < 0 || nRecordId >= nFeatures )
126 : {
127 : CPLError( CE_Failure, CPLE_FileIO,
128 : "Request for out-of-range feature %d of %sZ",
129 0 : nRecordId, pszModule );
130 0 : return NULL;
131 : }
132 :
133 : /* -------------------------------------------------------------------- */
134 : /* Read the raw record data from the file. */
135 : /* -------------------------------------------------------------------- */
136 0 : if( fpPrimary == NULL )
137 0 : return NULL;
138 :
139 0 : if( VSIFSeek( fpPrimary, nRecordId * nRecordLength, SEEK_SET ) != 0 )
140 : {
141 : CPLError( CE_Failure, CPLE_FileIO,
142 : "Failed to seek to %d of %sZ",
143 0 : nRecordId * nRecordLength, pszModule );
144 0 : return NULL;
145 : }
146 :
147 0 : if( VSIFRead( achRecord, psRTBInfo->nRecordLength, 1, fpPrimary ) != 1 )
148 : {
149 : CPLError( CE_Failure, CPLE_FileIO,
150 : "Failed to read record %d of %sZ",
151 0 : nRecordId, pszModule );
152 0 : return NULL;
153 : }
154 :
155 : /* -------------------------------------------------------------------- */
156 : /* Set fields. */
157 : /* -------------------------------------------------------------------- */
158 :
159 0 : OGRFeature *poFeature = new OGRFeature( poFeatureDefn );
160 :
161 0 : SetFields( psRTBInfo, poFeature, achRecord );
162 :
163 0 : return poFeature;
164 : }
165 :
166 : /************************************************************************/
167 : /* CreateFeature() */
168 : /************************************************************************/
169 :
170 0 : OGRErr TigerPolygonCorrections::CreateFeature( OGRFeature *poFeature )
171 :
172 : {
173 : char szRecord[OGR_TIGER_RECBUF_LEN];
174 :
175 0 : if( !SetWriteModule( FILE_CODE, psRTBInfo->nRecordLength+2, poFeature ) )
176 0 : return OGRERR_FAILURE;
177 :
178 0 : memset( szRecord, ' ', psRTBInfo->nRecordLength );
179 :
180 0 : WriteFields( psRTBInfo, poFeature, szRecord);
181 :
182 0 : WriteRecord( szRecord, psRTBInfo->nRecordLength, FILE_CODE );
183 :
184 0 : return OGRERR_NONE;
185 : }
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