PostGIS 3.7.0dev-r@@SVN_REVISION@@
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cu_out_geojson.c
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1/**********************************************************************
2 *
3 * PostGIS - Spatial Types for PostgreSQL
4 * http://postgis.net
5 * Copyright 2010 Olivier Courtin <olivier.courtin@oslandia.com>
6 *
7 * This is free software; you can redistribute and/or modify it under
8 * the terms of the GNU General Public Licence. See the COPYING file.
9 *
10 **********************************************************************/
11
12#include <stdio.h>
13#include <stdlib.h>
14#include <string.h>
15#include "CUnit/Basic.h"
16
17#include "liblwgeom_internal.h"
18#include "cu_tester.h"
19
20static void do_geojson_test(char * in, char * out, char * srs, int precision, int has_bbox)
21{
22 LWGEOM *g = lwgeom_from_wkt(in, LW_PARSER_CHECK_NONE);
23 lwvarlena_t *v = lwgeom_to_geojson(g, srs, precision, has_bbox);
24
25 ASSERT_VARLENA_EQUAL(v, out);
26
27 lwgeom_free(g);
28 lwfree(v);
29}
30
31
32static void do_geojson_unsupported(char * in, char * out)
33{
34 LWGEOM *g = lwgeom_from_wkt(in, LW_PARSER_CHECK_NONE);
35 lwvarlena_t *v = lwgeom_to_geojson(g, NULL, 0, 0);
36
37 ASSERT_STRING_EQUAL(out, cu_error_msg);
38 cu_error_msg_reset();
39
40 lwfree(v);
41 lwgeom_free(g);
42}
43
44
45static void out_geojson_test_precision(void)
46{
47 /* 0 precision, i.e a round */
48 do_geojson_test(
49 "POINT(1.1111111111111 1.1111111111111)",
50 "{\"type\":\"Point\",\"coordinates\":[1,1]}",
51 NULL, 0, 0);
52
53 /* 3 digits precision */
54 do_geojson_test(
55 "POINT(1.1111111111111 1.1111111111111)",
56 "{\"type\":\"Point\",\"coordinates\":[1.111,1.111]}",
57 NULL, 3, 0);
58
59 /* 9 digits precision */
60 do_geojson_test(
61 "POINT(1.2345678901234 1.2345678901234)",
62 "{\"type\":\"Point\",\"coordinates\":[1.23456789,1.23456789]}",
63 NULL, 9, 0);
64
65 /* huge data */
66 do_geojson_test(
67 "POINT(1E300 -1E300)",
68 "{\"type\":\"Point\",\"coordinates\":[1e+300,-1e+300]}",
69 NULL, 0, 0);
70
71 /* huge precision, see http://trac.osgeo.org/postgis/ticket/2052 */
72 do_geojson_test(
73 "POINT(1 2)",
74 "{\"type\":\"Point\",\"coordinates\":[1,2]}",
75 NULL, 100, 0);
76
77 /* double precision, see http://trac.osgeo.org/postgis/ticket/2051 */
78 do_geojson_test(
79 "POINT(59.99 -59.99)",
80 "{\"type\":\"Point\",\"coordinates\":[59.99,-59.99]}",
81 NULL, 15, 0);
82
83 /* small numbers */
84 do_geojson_test("POINT(1E-300 -2E-200)", "{\"type\":\"Point\",\"coordinates\":[1e-300,-2e-200]}", NULL, 300, 0);
85}
86
87
88static void out_geojson_test_dims(void)
89{
90 /* 3D */
91 do_geojson_test(
92 "POINT(0 1 2)",
93 "{\"type\":\"Point\",\"coordinates\":[0,1,2]}",
94 NULL, 0, 0);
95
96 /* 3DM */
97 do_geojson_test(
98 "POINTM(0 1 2)",
99 "{\"type\":\"Point\",\"coordinates\":[0,1]}",
100 NULL, 0, 0);
101
102 /* 4D */
103 do_geojson_test(
104 "POINT(0 1 2 3)",
105 "{\"type\":\"Point\",\"coordinates\":[0,1,2]}",
106 NULL, 0, 0);
107}
108
109
110static void out_geojson_test_srid(void)
111{
112 /* Linestring */
113 do_geojson_test(
114 "LINESTRING(0 1,2 3,4 5)",
115 "{\"type\":\"LineString\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[0,1],[2,3],[4,5]]}",
116 "EPSG:4326", 0, 0);
117
118 /* Polygon */
119 do_geojson_test(
120 "POLYGON((0 1,2 3,4 5,0 1))",
121 "{\"type\":\"Polygon\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
122 "EPSG:4326", 0, 0);
123
124 /* Polygon - with internal ring */
125 do_geojson_test(
126 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
127 "{\"type\":\"Polygon\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
128 "EPSG:4326", 0, 0);
129
130 /* Multiline */
131 do_geojson_test(
132 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
133 "{\"type\":\"MultiLineString\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
134 "EPSG:4326", 0, 0);
135
136 /* MultiPolygon */
137 do_geojson_test(
138 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
139 "{\"type\":\"MultiPolygon\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
140 "EPSG:4326", 0, 0);
141
142 /* GeometryCollection */
143 do_geojson_test(
144 "GEOMETRYCOLLECTION(POINT(0 1),LINESTRING(2 3,4 5))",
145 "{\"type\":\"GeometryCollection\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"geometries\":[{\"type\":\"Point\",\"coordinates\":[0,1]},{\"type\":\"LineString\",\"coordinates\":[[2,3],[4,5]]}]}",
146 "EPSG:4326", 0, 0);
147
148 /* Empty GeometryCollection */
149 do_geojson_test(
150 "GEOMETRYCOLLECTION EMPTY",
151 "{\"type\":\"GeometryCollection\",\"crs\":{\"type\":\"name\",\"properties\":{\"name\":\"EPSG:4326\"}},\"geometries\":[]}",
152 "EPSG:4326", 0, 0);
153}
154
155static void out_geojson_test_bbox(void)
156{
157 /* Linestring */
158 do_geojson_test(
159 "LINESTRING(0 1,2 3,4 5)",
160 "{\"type\":\"LineString\",\"bbox\":[0,1,4,5],\"coordinates\":[[0,1],[2,3],[4,5]]}",
161 NULL, 0, 1);
162
163 /* Polygon */
164 do_geojson_test(
165 "POLYGON((0 1,2 3,4 5,0 1))",
166 "{\"type\":\"Polygon\",\"bbox\":[0,1,4,5],\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
167 NULL, 0, 1);
168
169 /* Polygon - with internal ring */
170 do_geojson_test(
171 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
172 "{\"type\":\"Polygon\",\"bbox\":[0,1,4,5],\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
173 NULL, 0, 1);
174
175 /* Multiline */
176 do_geojson_test(
177 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
178 "{\"type\":\"MultiLineString\",\"bbox\":[0,1,10,11],\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
179 NULL, 0, 1);
180
181 /* MultiPolygon */
182 do_geojson_test(
183 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
184 "{\"type\":\"MultiPolygon\",\"bbox\":[0,1,10,11],\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
185 NULL, 0, 1);
186
187 /* GeometryCollection */
188 do_geojson_test(
189 "GEOMETRYCOLLECTION(LINESTRING(0 1,-1 3),LINESTRING(2 3,4 5))",
190 "{\"type\":\"GeometryCollection\",\"bbox\":[-1,1,4,5],\"geometries\":[{\"type\":\"LineString\",\"coordinates\":[[0,1],[-1,3]]},{\"type\":\"LineString\",\"coordinates\":[[2,3],[4,5]]}]}",
191 NULL, 0, 1);
192
193 /* Empty GeometryCollection */
194 do_geojson_test(
195 "GEOMETRYCOLLECTION EMPTY",
196 "{\"type\":\"GeometryCollection\",\"geometries\":[]}",
197 NULL, 0, 1);
198}
199
200static void out_geojson_test_geoms(void)
201{
202 /* Linestring */
203 do_geojson_test(
204 "LINESTRING(0 1,2 3,4 5)",
205 "{\"type\":\"LineString\",\"coordinates\":[[0,1],[2,3],[4,5]]}",
206 NULL, 0, 0);
207
208 /* Polygon */
209 do_geojson_test(
210 "POLYGON((0 1,2 3,4 5,0 1))",
211 "{\"type\":\"Polygon\",\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]]]}",
212 NULL, 0, 0);
213
214 /* Polygon - with internal ring */
215 do_geojson_test(
216 "POLYGON((0 1,2 3,4 5,0 1),(6 7,8 9,10 11,6 7))",
217 "{\"type\":\"Polygon\",\"coordinates\":[[[0,1],[2,3],[4,5],[0,1]],[[6,7],[8,9],[10,11],[6,7]]]}",
218 NULL, 0, 0);
219
220 /* Multiline */
221 do_geojson_test(
222 "MULTILINESTRING((0 1,2 3,4 5),(6 7,8 9,10 11))",
223 "{\"type\":\"MultiLineString\",\"coordinates\":[[[0,1],[2,3],[4,5]],[[6,7],[8,9],[10,11]]]}",
224 NULL, 0, 0);
225
226 /* MultiPolygon */
227 do_geojson_test(
228 "MULTIPOLYGON(((0 1,2 3,4 5,0 1)),((6 7,8 9,10 11,6 7)))",
229 "{\"type\":\"MultiPolygon\",\"coordinates\":[[[[0,1],[2,3],[4,5],[0,1]]],[[[6,7],[8,9],[10,11],[6,7]]]]}",
230 NULL, 0, 0);
231
232 /* GeometryCollection */
233 do_geojson_test(
234 "GEOMETRYCOLLECTION(POINT(0 1),LINESTRING(2 3,4 5))",
235 "{\"type\":\"GeometryCollection\",\"geometries\":[{\"type\":\"Point\",\"coordinates\":[0,1]},{\"type\":\"LineString\",\"coordinates\":[[2,3],[4,5]]}]}",
236 NULL, 0, 0);
237
238 /* Empty GeometryCollection */
239 do_geojson_test(
240 "GEOMETRYCOLLECTION EMPTY",
241 "{\"type\":\"GeometryCollection\",\"geometries\":[]}",
242 NULL, 0, 0);
243
244 /* Nested GeometryCollection */
245 do_geojson_unsupported(
246 "GEOMETRYCOLLECTION(POINT(0 1),GEOMETRYCOLLECTION(LINESTRING(2 3,4 5)))",
247 "GeoJson: geometry not supported.");
248
249 /* CircularString */
250 do_geojson_unsupported(
251 "CIRCULARSTRING(-2 0,0 2,2 0,0 2,2 4)",
252 "lwgeom_to_geojson: 'CircularString' geometry type not supported");
253
254 /* CompoundCurve */
255 do_geojson_unsupported(
256 "COMPOUNDCURVE(CIRCULARSTRING(0 0,1 1,1 0),(1 0,0 1))",
257 "lwgeom_to_geojson: 'CompoundCurve' geometry type not supported");
258
259 /* CurvePolygon */
260 do_geojson_unsupported(
261 "CURVEPOLYGON(CIRCULARSTRING(-2 0,-1 -1,0 0,1 -1,2 0,0 2,-2 0),(-1 0,0 0.5,1 0,0 1,-1 0))",
262 "lwgeom_to_geojson: 'CurvePolygon' geometry type not supported");
263
264 /* MultiCurve */
265 do_geojson_unsupported(
266 "MULTICURVE((5 5,3 5,3 3,0 3),CIRCULARSTRING(0 0,2 1,2 2))",
267 "lwgeom_to_geojson: 'MultiCurve' geometry type not supported");
268
269 /* MultiSurface */
270 do_geojson_unsupported(
271 "MULTISURFACE(CURVEPOLYGON(CIRCULARSTRING(-2 0,-1 -1,0 0,1 -1,2 0,0 2,-2 0),(-1 0,0 0.5,1 0,0 1,-1 0)),((7 8,10 10,6 14,4 11,7 8)))",
272 "lwgeom_to_geojson: 'MultiSurface' geometry type not supported");
273}
274
275/*
276** Used by test harness to register the tests in this file.
277*/
278void out_geojson_suite_setup(void);
279void out_geojson_suite_setup(void)
280{
281 CU_pSuite suite = CU_add_suite("geojson_output", NULL, NULL);
282 PG_ADD_TEST(suite, out_geojson_test_precision);
283 PG_ADD_TEST(suite, out_geojson_test_dims);
284 PG_ADD_TEST(suite, out_geojson_test_srid);
285 PG_ADD_TEST(suite, out_geojson_test_bbox);
286 PG_ADD_TEST(suite, out_geojson_test_geoms);
287}
precision
static uint8_t precision
Definition cu_in_twkb.c:25
out_geojson_test_dims
static void out_geojson_test_dims(void)
Definition cu_out_geojson.c:88
do_geojson_unsupported
static void do_geojson_unsupported(char *in, char *out)
Definition cu_out_geojson.c:32
out_geojson_test_bbox
static void out_geojson_test_bbox(void)
Definition cu_out_geojson.c:155
out_geojson_test_geoms
static void out_geojson_test_geoms(void)
Definition cu_out_geojson.c:200
out_geojson_test_precision
static void out_geojson_test_precision(void)
Definition cu_out_geojson.c:45
do_geojson_test
static void do_geojson_test(char *in, char *out, char *srs, int precision, int has_bbox)
Definition cu_out_geojson.c:20
out_geojson_suite_setup
void out_geojson_suite_setup(void)
Definition cu_out_geojson.c:279
out_geojson_test_srid
static void out_geojson_test_srid(void)
Definition cu_out_geojson.c:110
cu_error_msg_reset
void cu_error_msg_reset()
Definition liblwgeom/cunit/cu_tester.c:307
cu_error_msg
char cu_error_msg[MAX_CUNIT_ERROR_LENGTH+1]
Definition liblwgeom/cunit/cu_tester.c:19
ASSERT_VARLENA_EQUAL
#define ASSERT_VARLENA_EQUAL(v, s)
Definition liblwgeom/cunit/cu_tester.h:96
PG_ADD_TEST
#define PG_ADD_TEST(suite, testfunc)
Definition liblwgeom/cunit/cu_tester.h:21
ASSERT_STRING_EQUAL
#define ASSERT_STRING_EQUAL(o, e)
Definition liblwgeom/cunit/cu_tester.h:94
lwgeom_free
void lwgeom_free(LWGEOM *geom)
Definition lwgeom.c:1246
LW_PARSER_CHECK_NONE
#define LW_PARSER_CHECK_NONE
Definition liblwgeom.h:2149
lwgeom_to_geojson
lwvarlena_t * lwgeom_to_geojson(const LWGEOM *geo, const char *srs, int precision, int has_bbox)
Takes a GEOMETRY and returns a GeoJson representation.
Definition lwout_geojson.c:378
lwfree
void lwfree(void *mem)
Definition lwutil.c:248
lwgeom_from_wkt
LWGEOM * lwgeom_from_wkt(const char *wkt, const char check)
Definition lwin_wkt.c:940
liblwgeom_internal.h
cu_tester.h
lwvarlena_t
Definition liblwgeom.h:306