1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
/******************************************************************************
*
* Project: Shapelib
* Purpose: Sample application for dumping contents of a shapefile to
* the terminal in human readable form.
* Author: Frank Warmerdam, warmerdam@pobox.com
*
******************************************************************************
* Copyright (c) 1999, Frank Warmerdam
*
* SPDX-License-Identifier: MIT OR LGPL-2.0-or-later
******************************************************************************
*
*/
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "shapefil.h"
int main(int argc, char **argv)
{
bool bValidate = false;
if (argc > 1 && strcmp(argv[1], "-validate") == 0)
{
bValidate = true;
argv++;
argc--;
}
bool bHeaderOnly = false;
if (argc > 1 && strcmp(argv[1], "-ho") == 0)
{
bHeaderOnly = true;
argv++;
argc--;
}
int nPrecision = 15;
if (argc > 2 && strcmp(argv[1], "-precision") == 0)
{
nPrecision = atoi(argv[2]);
argv += 2;
argc -= 2;
}
/* -------------------------------------------------------------------- */
/* Display a usage message. */
/* -------------------------------------------------------------------- */
if (argc != 2)
{
printf("shpdump [-validate] [-ho] [-precision number] shp_file\n");
exit(1);
}
/* -------------------------------------------------------------------- */
/* Open the passed shapefile. */
/* -------------------------------------------------------------------- */
SHPHandle hSHP = SHPOpen(argv[1], "rb");
if (hSHP == NULL)
{
printf("Unable to open:%s\n", argv[1]);
exit(1);
}
/* -------------------------------------------------------------------- */
/* Print out the file bounds. */
/* -------------------------------------------------------------------- */
int nEntities;
int nShapeType;
double adfMinBound[4];
double adfMaxBound[4];
SHPGetInfo(hSHP, &nEntities, &nShapeType, adfMinBound, adfMaxBound);
printf("Shapefile Type: %s # of Shapes: %d\n\n", SHPTypeName(nShapeType),
nEntities);
printf("File Bounds: (%.*g,%.*g,%.*g,%.*g)\n"
" to (%.*g,%.*g,%.*g,%.*g)\n",
nPrecision, adfMinBound[0], nPrecision, adfMinBound[1], nPrecision,
adfMinBound[2], nPrecision, adfMinBound[3], nPrecision,
adfMaxBound[0], nPrecision, adfMaxBound[1], nPrecision,
adfMaxBound[2], nPrecision, adfMaxBound[3]);
/* -------------------------------------------------------------------- */
/* Skim over the list of shapes, printing all the vertices. */
/* -------------------------------------------------------------------- */
int nInvalidCount = 0;
for (int i = 0; i < nEntities && !bHeaderOnly; i++)
{
SHPObject *psShape = SHPReadObject(hSHP, i);
if (psShape == NULL)
{
fprintf(stderr,
"Unable to read shape %d, terminating object reading.\n",
i);
break;
}
if (psShape->bMeasureIsUsed)
printf("\nShape:%d (%s) nVertices=%d, nParts=%d\n"
" Bounds:(%.*g,%.*g, %.*g, %.*g)\n"
" to (%.*g,%.*g, %.*g, %.*g)\n",
i, SHPTypeName(psShape->nSHPType), psShape->nVertices,
psShape->nParts, nPrecision, psShape->dfXMin, nPrecision,
psShape->dfYMin, nPrecision, psShape->dfZMin, nPrecision,
psShape->dfMMin, nPrecision, psShape->dfXMax, nPrecision,
psShape->dfYMax, nPrecision, psShape->dfZMax, nPrecision,
psShape->dfMMax);
else
printf("\nShape:%d (%s) nVertices=%d, nParts=%d\n"
" Bounds:(%.*g,%.*g, %.*g)\n"
" to (%.*g,%.*g, %.*g)\n",
i, SHPTypeName(psShape->nSHPType), psShape->nVertices,
psShape->nParts, nPrecision, psShape->dfXMin, nPrecision,
psShape->dfYMin, nPrecision, psShape->dfZMin, nPrecision,
psShape->dfXMax, nPrecision, psShape->dfYMax, nPrecision,
psShape->dfZMax);
if (psShape->nParts > 0 && psShape->panPartStart[0] != 0)
{
fprintf(stderr, "panPartStart[0] = %d, not zero as expected.\n",
psShape->panPartStart[0]);
}
for (int j = 0, iPart = 1; j < psShape->nVertices; j++)
{
const char *pszPartType = "";
if (j == 0 && psShape->nParts > 0)
pszPartType = SHPPartTypeName(psShape->panPartType[0]);
const char *pszPlus;
if (iPart < psShape->nParts && psShape->panPartStart[iPart] == j)
{
pszPartType = SHPPartTypeName(psShape->panPartType[iPart]);
iPart++;
pszPlus = "+";
}
else
pszPlus = " ";
if (psShape->bMeasureIsUsed)
printf(" %s (%.*g,%.*g, %.*g, %.*g) %s \n", pszPlus,
nPrecision, psShape->padfX[j], nPrecision,
psShape->padfY[j], nPrecision, psShape->padfZ[j],
nPrecision, psShape->padfM[j], pszPartType);
else
printf(" %s (%.*g,%.*g, %.*g) %s \n", pszPlus, nPrecision,
psShape->padfX[j], nPrecision, psShape->padfY[j],
nPrecision, psShape->padfZ[j], pszPartType);
}
if (bValidate)
{
int nAltered = SHPRewindObject(hSHP, psShape);
if (nAltered > 0)
{
printf(" %d rings wound in the wrong direction.\n", nAltered);
nInvalidCount++;
}
}
SHPDestroyObject(psShape);
}
SHPClose(hSHP);
if (bValidate)
{
printf("%d object has invalid ring orderings.\n", nInvalidCount);
}
exit(0);
}
|
