[SCM] PostGIS branch master updated. 3.4.0rc1-1013-g1284f168d
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- Log -----------------------------------------------------------------
commit 1284f168d7159c8585b46f9bdfd54c63927f8c9e
Author: Sandro Santilli <strk at kbt.io>
Date: Wed Mar 13 12:19:47 2024 +0100
Add TopoGeo_LoadGeometry function
Includes regress test and documentation
Closes #5667
diff --git a/NEWS b/NEWS
index a828e3583..878fc9099 100644
--- a/NEWS
+++ b/NEWS
@@ -35,6 +35,7 @@ To take advantage of all SFCGAL featurs, SFCGAL 1.5.0+ is needed.
* New Features *
+ - #5667, TopoGeo_LoadGeometry (Sandro Santilli)
- #5055, add explicit <> geometry operator to prevent non-unique
error with <> and != (Paul Ramsey)
- Add ST_HasZ/ST_HasM (Loïc Bartoletti)
diff --git a/doc/extras_topology.xml b/doc/extras_topology.xml
index bed44ad10..fd9012059 100644
--- a/doc/extras_topology.xml
+++ b/doc/extras_topology.xml
@@ -1388,7 +1388,12 @@ SELECT topology.AddTopoGeometryColumn('ri_topo', 'ri', 'roads', 'topo', 'LINE');
<!-- Optionally add a "See Also" section -->
<refsection>
<title>See Also</title>
- <para><xref linkend="AddTopoGeometryColumn"/>, <xref linkend="CreateTopology"/>, <xref linkend="DropTopology"/></para>
+ <para>
+<xref linkend="TopoGeo_LoadGeometry"/>,
+<xref linkend="AddTopoGeometryColumn"/>,
+<xref linkend="CreateTopology"/>,
+<xref linkend="DropTopology"/>
+ </para>
</refsection>
</refentry>
@@ -1432,6 +1437,7 @@ An existing edge may be split by the snapped point.
<para>
<xref linkend="TopoGeo_AddLineString"/>,
<xref linkend="TopoGeo_AddPolygon"/>,
+<xref linkend="TopoGeo_LoadGeometry"/>,
<xref linkend="AddNode"/>,
<xref linkend="CreateTopology"/>
</para>
@@ -1481,6 +1487,7 @@ up to caller, see <xref linkend="Topology_StatsManagement"/>.
<para>
<xref linkend="TopoGeo_AddPoint"/>,
<xref linkend="TopoGeo_AddPolygon"/>,
+<xref linkend="TopoGeo_LoadGeometry"/>,
<xref linkend="AddEdge"/>,
<xref linkend="CreateTopology"/>
</para>
@@ -1530,12 +1537,62 @@ up to caller, see <xref linkend="Topology_StatsManagement"/>.
<para>
<xref linkend="TopoGeo_AddPoint"/>,
<xref linkend="TopoGeo_AddLineString"/>,
+<xref linkend="TopoGeo_LoadGeometry"/>,
<xref linkend="AddFace"/>,
<xref linkend="CreateTopology"/>
</para>
</refsection>
</refentry>
+ <refentry xml:id="TopoGeo_LoadGeometry">
+ <refnamediv>
+ <refname>TopoGeo_LoadGeometry</refname>
+
+ <refpurpose>Load a geometry into an existing topology, snapping and splitting as needed.</refpurpose>
+ </refnamediv>
+
+ <refsynopsisdiv>
+ <funcsynopsis>
+ <funcprototype>
+ <funcdef>void <function>TopoGeo_LoadGeometry</function></funcdef>
+ <paramdef><type>varchar </type> <parameter>atopology</parameter></paramdef>
+ <paramdef><type>geometry </type> <parameter>ageom</parameter></paramdef>
+ <paramdef choice="opt"><type>float8 </type> <parameter>tolerance</parameter></paramdef>
+ </funcprototype>
+ </funcsynopsis>
+ </refsynopsisdiv>
+
+ <refsection>
+ <title>Description</title>
+
+ <para>
+Loads a geometry into an existing topology.
+The given geometry will snap to existing nodes or edges within given tolerance.
+Existing edges and faces may be split as a consequence of the load.
+ </para>
+
+ <note><para>
+Updating statistics about topologies being loaded via this function is
+up to caller, see <xref linkend="Topology_StatsManagement"/>.
+ </para></note>
+
+ <!-- use this format if new function -->
+ <para role="availability" conformance="3.5.0">Availability: 3.5.0</para>
+ </refsection>
+
+
+ <!-- Optionally add a "See Also" section -->
+ <refsection>
+ <title>See Also</title>
+ <para>
+<xref linkend="TopoGeo_AddPoint"/>,
+<xref linkend="TopoGeo_AddLineString"/>,
+<xref linkend="TopoGeo_AddPolygon"/>,
+<xref linkend="CreateTopology"/>
+ </para>
+ </refsection>
+ </refentry>
+
</section>
diff --git a/liblwgeom/topo/liblwgeom_topo.h b/liblwgeom/topo/liblwgeom_topo.h
index 276d9d7cf..f4ed175b5 100644
--- a/liblwgeom/topo/liblwgeom_topo.h
+++ b/liblwgeom/topo/liblwgeom_topo.h
@@ -1143,6 +1143,19 @@ int lwt_Polygonize(LWT_TOPOLOGY* topo);
LWT_ELEMID* lwt_AddPolygon(LWT_TOPOLOGY* topo, LWPOLY* poly, double tol,
int* nfaces);
+/**
+ * Load a geometry into the topology
+ *
+ * The given geometry will snap to existing nodes or edges within given
+ * tolerance. Existing edges or faces may be split by the geometry.
+ *
+ * @param topo the topology to operate on
+ * @param geom the geometry to add
+ * @param tol snap tolerance, the topology tolerance will be used if 0
+ *
+ */
+void lwt_LoadGeometry(LWT_TOPOLOGY* topo, LWGEOM* geom, double tol);
+
/*******************************************************************
*
* ISO signatures here
diff --git a/liblwgeom/topo/liblwgeom_topo_internal.h b/liblwgeom/topo/liblwgeom_topo_internal.h
index 39dec255f..bec421c26 100644
--- a/liblwgeom/topo/liblwgeom_topo_internal.h
+++ b/liblwgeom/topo/liblwgeom_topo_internal.h
@@ -76,7 +76,7 @@ LWT_BE_TOPOLOGY * lwt_be_loadTopologyByName(LWT_BE_IFACE *be, const char *name);
int lwt_be_freeTopology(LWT_TOPOLOGY *topo);
LWT_ISO_NODE *lwt_be_getNodeWithinDistance2D(LWT_TOPOLOGY *topo,
- LWPOINT *pt,
+ const LWPOINT *pt,
double dist,
uint64_t *numelems,
int fields,
@@ -92,10 +92,10 @@ void _lwt_release_edges(LWT_ISO_EDGE *edges, int num_edges);
int lwt_be_updateEdgesById(LWT_TOPOLOGY* topo, const LWT_ISO_EDGE* edges, int numedges, int upd_fields);
int lwt_be_insertFaces(LWT_TOPOLOGY *topo, LWT_ISO_FACE *face, uint64_t numelems);
-int lwt_be_ExistsCoincidentNode(LWT_TOPOLOGY* topo, LWPOINT* pt);
+int lwt_be_ExistsCoincidentNode(LWT_TOPOLOGY* topo, const LWPOINT* pt);
int lwt_be_insertNodes(LWT_TOPOLOGY *topo, LWT_ISO_NODE *node, uint64_t numelems);
-int lwt_be_ExistsEdgeIntersectingPoint(LWT_TOPOLOGY* topo, LWPOINT* pt);
+int lwt_be_ExistsEdgeIntersectingPoint(LWT_TOPOLOGY* topo, const LWPOINT* pt);
LWT_ELEMID lwt_be_getNextEdgeId(LWT_TOPOLOGY* topo);
LWT_ISO_EDGE *lwt_be_getEdgeById(LWT_TOPOLOGY *topo, const LWT_ELEMID *ids, uint64_t *numelems, int fields);
diff --git a/liblwgeom/topo/lwgeom_topo.c b/liblwgeom/topo/lwgeom_topo.c
index 451701903..70e72c095 100644
--- a/liblwgeom/topo/lwgeom_topo.c
+++ b/liblwgeom/topo/lwgeom_topo.c
@@ -155,7 +155,7 @@ lwt_be_getNodeById(LWT_TOPOLOGY *topo, const LWT_ELEMID *ids, uint64_t *numelems
LWT_ISO_NODE *
lwt_be_getNodeWithinDistance2D(LWT_TOPOLOGY *topo,
- LWPOINT *pt,
+ const LWPOINT *pt,
double dist,
uint64_t *numelems,
int fields,
@@ -377,7 +377,7 @@ lwt_be_getRingEdges(LWT_TOPOLOGY *topo, LWT_ELEMID edge, uint64_t *numedges, uin
}
int
-lwt_be_ExistsCoincidentNode(LWT_TOPOLOGY* topo, LWPOINT* pt)
+lwt_be_ExistsCoincidentNode(LWT_TOPOLOGY* topo, const LWPOINT* pt)
{
uint64_t exists = 0;
lwt_be_getNodeWithinDistance2D(topo, pt, 0, &exists, 0, -1);
@@ -390,7 +390,7 @@ lwt_be_ExistsCoincidentNode(LWT_TOPOLOGY* topo, LWPOINT* pt)
}
int
-lwt_be_ExistsEdgeIntersectingPoint(LWT_TOPOLOGY* topo, LWPOINT* pt)
+lwt_be_ExistsEdgeIntersectingPoint(LWT_TOPOLOGY* topo, const LWPOINT* pt)
{
uint64_t exists = 0;
lwt_be_getEdgeWithinDistance2D(topo, pt, 0, &exists, 0, -1);
@@ -5987,10 +5987,45 @@ lwt_AddLineNoFace(LWT_TOPOLOGY* topo, LWLINE* line, double tol, int* nedges)
return _lwt_AddLine(topo, line, tol, nedges, 0);
}
+static void
+lwt_LoadPoint(LWT_TOPOLOGY* topo, LWPOINT* point, double tol)
+{
+ _lwt_AddPoint(topo, point, tol, 1, NULL);
+}
+
+static void
+lwt_LoadLine(LWT_TOPOLOGY* topo, LWLINE* line, double tol)
+{
+ LWT_ELEMID* ids;
+ int nedges;
+
+ /* TODO: avoid allocating edge ids */
+ ids = lwt_AddLine(topo, line, tol, &nedges);
+ if ( nedges > 0 ) lwfree(ids);
+}
+
+static void
+lwt_LoadPolygon(LWT_TOPOLOGY* topo, const LWPOLY* poly, double tol)
+{
+ uint32_t i;
+
+ /* Add each ring as an edge */
+ for ( i=0; i<poly->nrings; ++i )
+ {
+ LWLINE *line;
+ POINTARRAY *pa;
+
+ /* TODO: avoid the clone here */
+ pa = ptarray_clone(poly->rings[i]);
+ line = lwline_construct(topo->srid, NULL, pa);
+ lwt_LoadLine(topo, line, tol);
+ lwline_free(line);
+ }
+}
+
LWT_ELEMID*
lwt_AddPolygon(LWT_TOPOLOGY* topo, LWPOLY* poly, double tol, int* nfaces)
{
- uint32_t i;
*nfaces = -1; /* error condition, by default */
int num;
LWT_ISO_FACE *faces;
@@ -6005,26 +6040,7 @@ lwt_AddPolygon(LWT_TOPOLOGY* topo, LWPOLY* poly, double tol, int* nfaces)
if ( ! tol ) tol = _LWT_MINTOLERANCE( topo, (LWGEOM*)poly );
LWDEBUGF(1, "Working tolerance:%.15g", tol);
- /* Add each ring as an edge */
- for ( i=0; i<poly->nrings; ++i )
- {
- LWLINE *line;
- POINTARRAY *pa;
- LWT_ELEMID *eids;
- int nedges;
-
- pa = ptarray_clone(poly->rings[i]);
- line = lwline_construct(topo->srid, NULL, pa);
- eids = lwt_AddLine( topo, line, tol, &nedges );
- if ( nedges < 0 ) {
- /* probably too late as lwt_AddLine invoked lwerror */
- lwline_free(line);
- lwerror("Error adding ring %d of polygon", i);
- return NULL;
- }
- lwline_free(line);
- lwfree(eids);
- }
+ lwt_LoadPolygon(topo, poly, tol);
/*
-- Find faces covered by input polygon
@@ -6465,3 +6481,49 @@ lwt_GetFaceContainingPoint(LWT_TOPOLOGY* topo, const LWPOINT* pt)
_lwt_release_edges(closestEdge, 1);
return containingFace;
}
+
+void
+_lwt_LoadGeometryRecursive(LWT_TOPOLOGY* topo, LWGEOM* geom, double tol)
+{
+ switch (geom->type)
+ {
+ case POINTTYPE:
+ lwt_LoadPoint(topo, lwgeom_as_lwpoint(geom), tol);
+ return;
+
+ case LINETYPE:
+ lwt_LoadLine(topo, lwgeom_as_lwline(geom), tol);
+ return;
+
+ case POLYGONTYPE:
+ lwt_LoadPolygon(topo, lwgeom_as_lwpoly(geom), tol);
+ return;
+
+ case MULTILINETYPE:
+ case MULTIPOLYGONTYPE:
+ case MULTIPOINTTYPE:
+ case COLLECTIONTYPE:
+ {
+ LWCOLLECTION *coll;
+ uint32_t i;
+ coll = (LWCOLLECTION *)geom;
+ for (i=0; i<coll->ngeoms; i++)
+ _lwt_LoadGeometryRecursive(topo, coll->geoms[i], tol);
+ return;
+ }
+
+ default:
+ {
+ lwerror("%s: Unsupported geometry type: %s", __func__,
+ lwtype_name(geom->type));
+ return;
+ }
+
+ }
+}
+
+void
+lwt_LoadGeometry(LWT_TOPOLOGY* topo, LWGEOM* geom, double tol)
+{
+ _lwt_LoadGeometryRecursive(topo, geom, tol);
+}
diff --git a/topology/postgis_topology.c b/topology/postgis_topology.c
index 0a49edba4..192fd7f9a 100644
--- a/topology/postgis_topology.c
+++ b/topology/postgis_topology.c
@@ -5137,7 +5137,7 @@ Datum TopoGeo_AddLinestring(PG_FUNCTION_ARGS)
POSTGIS_DEBUG(1, "Calling lwt_AddLine");
elems = lwt_AddLine(topo, ln, tol, &nelems);
- POSTGIS_DEBUG(1, "lwt_AddLine* returned");
+ POSTGIS_DEBUG(1, "lwt_AddLine returned");
lwgeom_free(lwgeom);
PG_FREE_IF_COPY(geom, 1);
lwt_FreeTopology(topo);
@@ -5618,3 +5618,59 @@ Datum RegisterMissingFaces(PG_FUNCTION_ARGS)
PG_RETURN_NULL();
}
+
+/* TopoGeo_LoadGeometry(atopology, geom, tolerance) */
+Datum TopoGeo_LoadGeometry(PG_FUNCTION_ARGS);
+PG_FUNCTION_INFO_V1(TopoGeo_LoadGeometry);
+Datum TopoGeo_LoadGeometry(PG_FUNCTION_ARGS)
+{
+ text* toponame_text;
+ char* toponame;
+ double tol;
+ GSERIALIZED *geom;
+ LWGEOM *lwgeom;
+ LWT_TOPOLOGY *topo;
+
+ toponame_text = PG_GETARG_TEXT_P(0);
+ toponame = text_to_cstring(toponame_text);
+ PG_FREE_IF_COPY(toponame_text, 0);
+
+ geom = PG_GETARG_GSERIALIZED_P(1);
+ lwgeom = lwgeom_from_gserialized(geom);
+
+ tol = PG_GETARG_FLOAT8(2);
+ if ( tol < 0 )
+ {
+ PG_FREE_IF_COPY(geom, 1);
+ lwpgerror("Tolerance must be >=0");
+ PG_RETURN_NULL();
+ }
+
+ if ( SPI_OK_CONNECT != SPI_connect() )
+ {
+ lwpgerror("Could not connect to SPI");
+ PG_RETURN_NULL();
+ }
+
+ topo = lwt_LoadTopology(be_iface, toponame);
+ pfree(toponame);
+ if ( ! topo )
+ {
+ /* should never reach this point, as lwerror would raise an exception */
+ SPI_finish();
+ PG_RETURN_NULL();
+ }
+
+ POSTGIS_DEBUG(1, "Calling lwt_LoadGeometry");
+ lwt_LoadGeometry(topo, lwgeom, tol);
+ POSTGIS_DEBUG(1, "lwt_LoadGeometry returned");
+ lwgeom_free(lwgeom);
+ PG_FREE_IF_COPY(geom, 1);
+ lwt_FreeTopology(topo);
+
+ POSTGIS_DEBUG(1, "TopoGeo_LoadGeometry calling SPI_finish");
+
+ SPI_finish();
+
+ PG_RETURN_VOID();
+}
diff --git a/topology/sql/populate.sql.in b/topology/sql/populate.sql.in
index 96909066e..bd21a513e 100644
--- a/topology/sql/populate.sql.in
+++ b/topology/sql/populate.sql.in
@@ -721,6 +721,19 @@ CREATE OR REPLACE FUNCTION topology.TopoGeo_AddPolygon(atopology varchar, apoly
LANGUAGE 'c' VOLATILE;
--} TopoGeo_AddPolygon
+--{
+-- TopoGeo_LoadGeometry(toponame, geom, tolerance)
+--
+-- Load a Geometry into a topology
+--
+-- Availability: 3.5.0
+--
+CREATE OR REPLACE FUNCTION topology.TopoGeo_LoadGeometry(atopology varchar, ageom geometry, tolerance float8 DEFAULT 0)
+ RETURNS void AS
+ 'MODULE_PATHNAME', 'TopoGeo_LoadGeometry'
+ LANGUAGE 'c' VOLATILE;
+--} TopoGeo_LoadGeometry
+
--{
-- TopoGeo_AddGeometry(toponame, geom, tolerance)
--
@@ -731,7 +744,7 @@ CREATE OR REPLACE FUNCTION topology.TopoGeo_AddGeometry(atopology varchar, ageom
$$
DECLARE
BEGIN
- RAISE EXCEPTION 'TopoGeo_AddGeometry not implemented yet';
+ RAISE EXCEPTION 'TopoGeo_AddGeometry not implemented yet, use TopoGeo_LoadGeometry';
END
$$
LANGUAGE 'plpgsql';
diff --git a/topology/test/regress/topogeo_loadgeometry.sql b/topology/test/regress/topogeo_loadgeometry.sql
new file mode 100644
index 000000000..dbb3db8d6
--- /dev/null
+++ b/topology/test/regress/topogeo_loadgeometry.sql
@@ -0,0 +1,108 @@
+SET client_min_messages TO WARNING;
+SELECT NULL FROM topology.CreateTopology('t');
+
+CREATE FUNCTION t.print_counts(lbl text) RETURNS TEXT
+AS $$
+ SELECT format('%s|%s nodes|%s edges|%s faces',
+ lbl,
+ ( SELECT count(*) FROM t.node ),
+ ( SELECT count(*) FROM t.edge ),
+ ( SELECT count(*) FROM t.face WHERE face_id != 0 )
+ );
+$$ LANGUAGE 'sql';
+
+--
+--
+-- o
+--
+SELECT topology.TopoGeo_LoadGeometry('t', 'POINT(0 0)');
+SELECT t.print_counts('point1');
+
+--
+-- o {5,5}
+--
+-- o {0,0}
+--
+SELECT topology.TopoGeo_LoadGeometry('t', 'MULTIPOINT((0 0),(5 5))');
+SELECT t.print_counts('mpoint1');
+
+--
+-- {0,10} {5,10} {10,10}
+-- o----------o-----------o
+-- |
+-- |
+-- |
+-- |
+-- |
+-- o {5,5}
+-- {0,0} |
+-- o |
+-- |
+-- |
+-- |
+-- o {5,-10}
+--
+-- mline1|6 nodes|4 edges|0 faces
+--
+SELECT topology.TopoGeo_LoadGeometry('t', 'MULTILINESTRING((5 -10,5 10),(0 10,10 10))');
+SELECT t.print_counts('mline1');
+
+-- {-10,20} {10,20}
+-- .-------------------------------------.
+-- | |
+-- | .------.{0,16} |
+-- | | | |
+-- | o------' |
+-- | {-5,15} |
+-- | |
+-- | {0,10} {5,10} {10,10}|
+-- | o---------o----------------o
+-- | | |
+-- | | |
+-- | o {5,5} |
+-- | {0,0} | |
+-- | o | |
+-- | | |
+-- o--------------------o----------------'
+-- {-10,-10} {5,-10} {10,-10}
+--
+-- mpoly1|8 nodes|8 edges|3 faces
+--
+SELECT topology.TopoGeo_LoadGeometry('t', 'MULTIPOLYGON(
+ ((-10 -10,10 -10,10 20,-10 20,-10 -10)),
+ ((-5 15,0 15,0 16,-5 16,-5 15))
+)');
+SELECT t.print_counts('mpoly1');
+
+
+-- {-10,20} {10,20}
+-- .-------------------------------------.
+-- | |
+-- | .------.{0,16} {8,16} o-------o--------.
+-- | | | | | |
+-- | o------' `-------o--------' {12,15}
+-- | {-5,15} |
+-- | |
+-- | {0,10} {5,10} {10,10}|
+-- o----------o---------o----------------o
+-- | | |
+-- | | |
+-- | o {5,5} |
+-- | {0,0} | |
+-- | o | o |
+-- | | {8,0} |
+-- o--------------------o----------------'
+-- {-10,-10} {5,-10} {10,-10}
+--
+-- coll1|13 nodes|15 edges|6 faces
+--
+SELECT topology.TopoGeo_LoadGeometry('t', 'GEOMETRYCOLLECTION(
+ POLYGON((8 16,12 16,12 15,8 16,8 16)),
+ MULTIPOINT((8 0)),
+ LINESTRING(-10 10,0 10)
+)');
+SELECT t.print_counts('coll1');
+
+SELECT 'unexpected invalidity', * FROM topology.ValidateTopology('t');
+
+SELECT NULL FROM topology.DropTopology('t');
diff --git a/topology/test/regress/topogeo_loadgeometry_expected b/topology/test/regress/topogeo_loadgeometry_expected
new file mode 100644
index 000000000..1467fa7f6
--- /dev/null
+++ b/topology/test/regress/topogeo_loadgeometry_expected
@@ -0,0 +1,5 @@
+point1|1 nodes|0 edges|0 faces
+mpoint1|2 nodes|0 edges|0 faces
+mline1|6 nodes|4 edges|0 faces
+mpoly1|8 nodes|8 edges|3 faces
+coll1|13 nodes|15 edges|6 faces
diff --git a/topology/test/tests.mk b/topology/test/tests.mk
index 716fe291a..5f148a6ca 100644
--- a/topology/test/tests.mk
+++ b/topology/test/tests.mk
@@ -75,6 +75,7 @@ TESTS += \
$(top_srcdir)/topology/test/regress/topogeo_addlinestring.sql \
$(top_srcdir)/topology/test/regress/topogeo_addpoint.sql \
$(top_srcdir)/topology/test/regress/topogeo_addpolygon.sql \
+ $(top_srcdir)/topology/test/regress/topogeo_loadgeometry.sql \
$(top_srcdir)/topology/test/regress/topogeom_addtopogeom.sql \
$(top_srcdir)/topology/test/regress/topogeom_edit.sql \
$(top_srcdir)/topology/test/regress/topogeometry_srid.sql \
-----------------------------------------------------------------------
Summary of changes:
NEWS | 1 +
doc/extras_topology.xml | 59 ++++++++++-
liblwgeom/topo/liblwgeom_topo.h | 13 +++
liblwgeom/topo/liblwgeom_topo_internal.h | 6 +-
liblwgeom/topo/lwgeom_topo.c | 110 ++++++++++++++++-----
topology/postgis_topology.c | 58 ++++++++++-
topology/sql/populate.sql.in | 15 ++-
topology/test/regress/topogeo_loadgeometry.sql | 108 ++++++++++++++++++++
.../test/regress/topogeo_loadgeometry_expected | 5 +
topology/test/tests.mk | 1 +
10 files changed, 346 insertions(+), 30 deletions(-)
create mode 100644 topology/test/regress/topogeo_loadgeometry.sql
create mode 100644 topology/test/regress/topogeo_loadgeometry_expected
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