[postgis-tickets] r14858 - Preserve SRID in ST_MinimumClearanceLine, and add regress checks missed in last commit

[Daniel Baston]

Author: dbaston
Date: 2016-04-26 16:17:34 -0700 (Tue, 26 Apr 2016)
New Revision: 14858

Added:
   trunk/regress/minimum_clearance.sql
   trunk/regress/minimum_clearance_expected
Modified:
   trunk/postgis/lwgeom_geos.c
Log:
Preserve SRID in ST_MinimumClearanceLine, and add regress checks missed in last commit

Modified: trunk/postgis/lwgeom_geos.c
===================================================================
--- trunk/postgis/lwgeom_geos.c	2016-04-26 18:35:31 UTC (rev 14857)
+++ trunk/postgis/lwgeom_geos.c	2016-04-26 23:17:34 UTC (rev 14858)
@@ -3731,10 +3731,12 @@
 	GSERIALIZED* result;
 	GEOSGeometry* input_geos;
 	GEOSGeometry* result_geos;
+	int srid;
 
 	initGEOS(lwpgnotice, lwgeom_geos_error);
 
 	input = PG_GETARG_GSERIALIZED_P(0);
+	srid = gserialized_get_srid(input);
 	input_geos = POSTGIS2GEOS(input);
 	if (!input_geos)   /* exception thrown at construction */
 	{
@@ -3750,6 +3752,7 @@
 		PG_RETURN_NULL();
 	}
 
+	GEOSSetSRID(result_geos, srid);
 	result = GEOS2POSTGIS(result_geos, LW_FALSE);
 	GEOSGeom_destroy(result_geos);
 

Added: trunk/regress/minimum_clearance.sql
===================================================================
--- trunk/regress/minimum_clearance.sql	                        (rev 0)
+++ trunk/regress/minimum_clearance.sql	2016-04-26 23:17:34 UTC (rev 14858)
@@ -0,0 +1,9 @@
+SELECT 't1', ST_MinimumClearance(NULL::geometry) IS NULL;
+SELECT 't2', ST_MinimumClearanceLine(NULL::geometry) IS NULL;
+SELECT 't3', ST_MinimumClearance('POINT (0 0)') = 'Infinity';
+SELECT 't4', ST_Equals(ST_MinimumClearanceLine('POINT (0 0)'), 'LINESTRING EMPTY');
+SELECT 't5', ST_MinimumClearance('POLYGON ((0 0, 1 0, 1 1, 0.5 3.2e-4, 0 0))')=0.00032;
+SELECT 't6', ST_Equals(ST_MinimumClearanceLine('POLYGON ((0 0, 1 0, 1 1, 0.5 3.2e-4, 0 0))'), 'LINESTRING (0.5 0.00032, 0.5 0)');
+SELECT 't7', ST_MinimumClearance('POLYGON EMPTY') = 'Infinity';
+SELECT 't8', ST_MinimumClearanceLine('POLYGON EMPTY') = 'LINESTRING EMPTY';
+SELECT 't9', ST_SRID(ST_MinimumClearanceLine('SRID=3857;LINESTRING (0 0, 1 1)'))=3857;

Added: trunk/regress/minimum_clearance_expected
===================================================================
--- trunk/regress/minimum_clearance_expected	                        (rev 0)
+++ trunk/regress/minimum_clearance_expected	2016-04-26 23:17:34 UTC (rev 14858)
@@ -0,0 +1,9 @@
+t1|t
+t2|t
+t3|t
+t4|t
+t5|t
+t6|t
+t7|t
+t8|t
+t9|t