static gaiaGeomCollPtr gaiaGeoJsonGeometryFromLinestringZ (struct geoJson_data *p_data, gaiaLinestringPtr line, int srid) { /* builds a GEOMETRY containing a LINESTRINGZ */ gaiaGeomCollPtr geom = NULL; gaiaLinestringPtr line2; int iv; double x; double y; double z; geom = gaiaAllocGeomCollXYZ (); geoJsonMapDynAlloc (p_data, GEOJSON_DYN_GEOMETRY, geom); geom->DeclaredType = GAIA_LINESTRING; geom->Srid = srid; line2 = gaiaAddLinestringToGeomColl (geom, line->Points); for (iv = 0; iv < line2->Points; iv++) { /* sets the POINTS for the exterior ring */ gaiaGetPointXYZ (line->Coords, iv, &x, &y, &z); gaiaSetPointXYZ (line2->Coords, iv, x, y, z); } geoJsonMapDynClean (p_data, line); gaiaFreeLinestring (line); return geom; }
/* * Creates a 3D (xyz) multipoint object in SpatiaLite * * first is a gaiaPointPtr to the first point in a linked list of points. * All of the points given to the function are 3D (xyz) points. There will be at least 1 point in the list. * * Returns a geometry collection containing the created multipoint object. */ static gaiaGeomCollPtr geoJSON_multipoint_xyz (struct geoJson_data *p_data, gaiaPointPtr first) { gaiaPointPtr p = first; gaiaPointPtr p_n; gaiaGeomCollPtr geom = NULL; /* If no pointers are given, return. */ if (first == NULL) return NULL; /* Creates and allocates a geometry collection containing a multipoint. */ geom = gaiaAllocGeomCollXYZ (); if (geom == NULL) return NULL; geoJsonMapDynAlloc (p_data, GEOJSON_DYN_GEOMETRY, geom); geom->DeclaredType = GAIA_MULTIPOINT; /* For every 3D (xyz) point, add it to the geometry collection. */ while (p != NULL) { gaiaAddPointToGeomCollXYZ (geom, p->X, p->Y, p->Z); p_n = p->Next; geoJsonMapDynClean (p_data, p); gaiaFreePoint (p); p = p_n; } return geom; }
static gaiaGeomCollPtr gaiaGeoJsonGeometryFromPointZ (struct geoJson_data *p_data, gaiaPointPtr point, int srid) { /* builds a GEOMETRY containing a POINTZ */ gaiaGeomCollPtr geom = NULL; geom = gaiaAllocGeomCollXYZ (); geoJsonMapDynAlloc (p_data, GEOJSON_DYN_GEOMETRY, geom); geom->DeclaredType = GAIA_POINTZ; geom->Srid = srid; gaiaAddPointToGeomCollXYZ (geom, point->X, point->Y, point->Z); geoJsonMapDynClean (p_data, point); gaiaFreePoint (point); return geom; }
GAIAGEO_DECLARE gaiaGeomCollPtr gaiaExtractPointsFromGeomColl (gaiaGeomCollPtr geom) { /* extracts any POINT from a GeometryCollection */ gaiaGeomCollPtr result; gaiaPointPtr pt; int pts = 0; if (!geom) return NULL; pt = geom->FirstPoint; while (pt) { pts++; pt = pt->Next; } if (!pts) return NULL; if (geom->DimensionModel == GAIA_XY_Z_M) result = gaiaAllocGeomCollXYZM (); else if (geom->DimensionModel == GAIA_XY_Z) result = gaiaAllocGeomCollXYZ (); else if (geom->DimensionModel == GAIA_XY_M) result = gaiaAllocGeomCollXYM (); else result = gaiaAllocGeomColl (); pt = geom->FirstPoint; while (pt) { if (geom->DimensionModel == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (result, pt->X, pt->Y, pt->Z, pt->M); else if (geom->DimensionModel == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (result, pt->X, pt->Y, pt->Z); else if (geom->DimensionModel == GAIA_XY_M) gaiaAddPointToGeomCollXYM (result, pt->X, pt->Y, pt->M); else gaiaAddPointToGeomColl (result, pt->X, pt->Y); pt = pt->Next; } result->Srid = geom->Srid; result->DeclaredType = GAIA_MULTIPOINT; return result; }
static gaiaGeomCollPtr geoJSON_buildGeomFromPolygonSrid (struct geoJson_data *p_data, gaiaPolygonPtr polygon, int *srid) { gaiaGeomCollPtr geom = NULL; /* If no pointers are given, return. */ if (polygon == NULL) { return NULL; } /* Creates and allocates a geometry collection containing a multipoint. */ switch (polygon->DimensionModel) { case GAIA_XY: geom = gaiaAllocGeomColl (); break; case GAIA_XY_Z: geom = gaiaAllocGeomCollXYZ (); break; } if (geom == NULL) { return NULL; } geoJsonMapDynAlloc (p_data, GEOJSON_DYN_GEOMETRY, geom); geom->DeclaredType = GAIA_POLYGON; geom->Srid = *srid; /* Stores the location of the first and last polygons in the linked list. */ geom->FirstPolygon = polygon; while (polygon != NULL) { geoJsonMapDynClean (p_data, polygon); geom->LastPolygon = polygon; polygon = polygon->Next; } return geom; }
/* * Returns a geometry collection containing the created multilinestring object (?). * Creates a geometry collection containing 3D (xyz) linestrings. * Parameter first is a gaiaLinestringPtr to the first linestring in a linked list of linestrings which should be added to the * collection. All of the *linestrings in the list must be 3D (xyz) linestrings. There must be at least 1 linestring in the list. * Returns a pointer to the created geometry collection of 3D linestrings. The geometry must have FirstLinestring pointing to the * first linestring in the *list pointed by first and LastLinestring pointing to the last element of the same list. DimensionModel * must be GAIA_XYZ and DimensionType must be *GAIA_TYPE_LINESTRING. */ static gaiaGeomCollPtr geoJSON_multilinestring_xyz (struct geoJson_data *p_data, gaiaLinestringPtr first) { gaiaLinestringPtr p = first; gaiaLinestringPtr p_n; gaiaLinestringPtr new_line; gaiaGeomCollPtr a = gaiaAllocGeomCollXYZ (); geoJsonMapDynAlloc (p_data, GEOJSON_DYN_GEOMETRY, a); a->DeclaredType = GAIA_MULTILINESTRING; a->DimensionModel = GAIA_XY_Z; while (p) { new_line = gaiaAddLinestringToGeomColl (a, p->Points); gaiaCopyLinestringCoords (new_line, p); p_n = p->Next; geoJsonMapDynClean (p_data, p); gaiaFreeLinestring (p); p = p_n; } return a; }
/* * Creates a geometry collection containing 3D (xyz) polygons. * * Parameter first is a gaiaPolygonPtr to the first polygon in a linked list of polygons which should be * added to the collection. All of the polygons in the list must be 3D (xyz) polygons. There must be at * least 1 polygon in the list. * * Returns a pointer to the created geometry collection of 3D polygons. The geometry must have * FirstPolygon pointing to the first polygon in the list pointed by first and LastPolygon pointing to * the last element of the same list. DimensionModel must be GAIA_XYZ and DimensionType must * be GAIA_TYPE_POLYGON. * */ static gaiaGeomCollPtr geoJSON_multipolygon_xyz (struct geoJson_data *p_data, gaiaPolygonPtr first) { gaiaPolygonPtr p = first; gaiaPolygonPtr p_n; int i = 0; gaiaPolygonPtr new_polyg; gaiaRingPtr i_ring; gaiaRingPtr o_ring; gaiaGeomCollPtr geom = gaiaAllocGeomCollXYZ (); geoJsonMapDynAlloc (p_data, GEOJSON_DYN_GEOMETRY, geom); geom->DeclaredType = GAIA_MULTIPOLYGON; while (p) { i_ring = p->Exterior; new_polyg = gaiaAddPolygonToGeomColl (geom, i_ring->Points, p->NumInteriors); o_ring = new_polyg->Exterior; gaiaCopyRingCoords (o_ring, i_ring); for (i = 0; i < new_polyg->NumInteriors; i++) { i_ring = p->Interiors + i; o_ring = gaiaAddInteriorRing (new_polyg, i, i_ring->Points); gaiaCopyRingCoords (o_ring, i_ring); } p_n = p->Next; geoJsonMapDynClean (p_data, p); gaiaFreePolygon (p); p = p_n; } return geom; }
static gaiaGeomCollPtr gaiaTransformCommon (projCtx handle, gaiaGeomCollPtr org, char *proj_from, char *proj_to) { /* creates a new GEOMETRY reprojecting coordinates from the original one */ int ib; int cnt; int i; double *xx; double *yy; double *zz; double *mm = NULL; double x; double y; double z = 0.0; double m = 0.0; int error = 0; int from_angle; int to_angle; gaiaPointPtr pt; gaiaLinestringPtr ln; gaiaLinestringPtr dst_ln; gaiaPolygonPtr pg; gaiaPolygonPtr dst_pg; gaiaRingPtr rng; gaiaRingPtr dst_rng; projPJ from_cs; projPJ to_cs; gaiaGeomCollPtr dst; if (handle != NULL) { from_cs = pj_init_plus_ctx (handle, proj_from); to_cs = pj_init_plus_ctx (handle, proj_to); } else { from_cs = pj_init_plus (proj_from); to_cs = pj_init_plus (proj_to); } if (!from_cs) { if (to_cs) pj_free (to_cs); return NULL; } if (!to_cs) { pj_free (from_cs); return NULL; } if (org->DimensionModel == GAIA_XY_Z) dst = gaiaAllocGeomCollXYZ (); else if (org->DimensionModel == GAIA_XY_M) dst = gaiaAllocGeomCollXYM (); else if (org->DimensionModel == GAIA_XY_Z_M) dst = gaiaAllocGeomCollXYZM (); else dst = gaiaAllocGeomColl (); /* setting up projection parameters */ from_angle = gaiaIsLongLat (proj_from); to_angle = gaiaIsLongLat (proj_to); cnt = 0; pt = org->FirstPoint; while (pt) { /* counting POINTs */ cnt++; pt = pt->Next; } if (cnt) { /* reprojecting POINTs */ xx = malloc (sizeof (double) * cnt); yy = malloc (sizeof (double) * cnt); zz = malloc (sizeof (double) * cnt); if (org->DimensionModel == GAIA_XY_M || org->DimensionModel == GAIA_XY_Z_M) mm = malloc (sizeof (double) * cnt); i = 0; pt = org->FirstPoint; while (pt) { /* inserting points to be converted in temporary arrays */ if (from_angle) { xx[i] = gaiaDegsToRads (pt->X); yy[i] = gaiaDegsToRads (pt->Y); } else { xx[i] = pt->X; yy[i] = pt->Y; } if (org->DimensionModel == GAIA_XY_Z || org->DimensionModel == GAIA_XY_Z_M) zz[i] = pt->Z; else zz[i] = 0.0; if (org->DimensionModel == GAIA_XY_M || org->DimensionModel == GAIA_XY_Z_M) mm[i] = pt->M; i++; pt = pt->Next; } /* applying reprojection */ if (pj_transform (from_cs, to_cs, cnt, 0, xx, yy, zz) == 0) { /* inserting the reprojected POINTs in the new GEOMETRY */ for (i = 0; i < cnt; i++) { if (to_angle) { x = gaiaRadsToDegs (xx[i]); y = gaiaRadsToDegs (yy[i]); } else { x = xx[i]; y = yy[i]; } if (org->DimensionModel == GAIA_XY_Z || org->DimensionModel == GAIA_XY_Z_M) z = zz[i]; else z = 0.0; if (org->DimensionModel == GAIA_XY_M || org->DimensionModel == GAIA_XY_Z_M) m = mm[i]; else m = 0.0; if (dst->DimensionModel == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (dst, x, y, z); else if (dst->DimensionModel == GAIA_XY_M) gaiaAddPointToGeomCollXYM (dst, x, y, m); else if (dst->DimensionModel == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (dst, x, y, z, m); else gaiaAddPointToGeomColl (dst, x, y); } } else error = 1; free (xx); free (yy); free (zz); if (org->DimensionModel == GAIA_XY_M || org->DimensionModel == GAIA_XY_Z_M) free (mm); } if (error) goto stop; ln = org->FirstLinestring; while (ln) { /* reprojecting LINESTRINGs */ cnt = ln->Points; xx = malloc (sizeof (double) * cnt); yy = malloc (sizeof (double) * cnt); zz = malloc (sizeof (double) * cnt); if (ln->DimensionModel == GAIA_XY_M || ln->DimensionModel == GAIA_XY_Z_M) mm = malloc (sizeof (double) * cnt); for (i = 0; i < cnt; i++) { /* inserting points to be converted in temporary arrays */ if (ln->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (ln->Coords, i, &x, &y, &z); } else if (ln->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (ln->Coords, i, &x, &y, &m); } else if (ln->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (ln->Coords, i, &x, &y, &z, &m); } else { gaiaGetPoint (ln->Coords, i, &x, &y); } if (from_angle) { xx[i] = gaiaDegsToRads (x); yy[i] = gaiaDegsToRads (y); } else { xx[i] = x; yy[i] = y; } if (ln->DimensionModel == GAIA_XY_Z || ln->DimensionModel == GAIA_XY_Z_M) zz[i] = z; else zz[i] = 0.0; if (ln->DimensionModel == GAIA_XY_M || ln->DimensionModel == GAIA_XY_Z_M) mm[i] = m; } /* applying reprojection */ if (pj_transform (from_cs, to_cs, cnt, 0, xx, yy, zz) == 0) { /* inserting the reprojected LINESTRING in the new GEOMETRY */ dst_ln = gaiaAddLinestringToGeomColl (dst, cnt); for (i = 0; i < cnt; i++) { /* setting LINESTRING points */ if (to_angle) { x = gaiaRadsToDegs (xx[i]); y = gaiaRadsToDegs (yy[i]); } else { x = xx[i]; y = yy[i]; } if (ln->DimensionModel == GAIA_XY_Z || ln->DimensionModel == GAIA_XY_Z_M) z = zz[i]; else z = 0.0; if (ln->DimensionModel == GAIA_XY_M || ln->DimensionModel == GAIA_XY_Z_M) m = mm[i]; else m = 0.0; if (dst_ln->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (dst_ln->Coords, i, x, y, z); } else if (dst_ln->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (dst_ln->Coords, i, x, y, m); } else if (dst_ln->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (dst_ln->Coords, i, x, y, z, m); } else { gaiaSetPoint (dst_ln->Coords, i, x, y); } } } else error = 1; free (xx); free (yy); free (zz); if (ln->DimensionModel == GAIA_XY_M || ln->DimensionModel == GAIA_XY_Z_M) free (mm); if (error) goto stop; ln = ln->Next; } pg = org->FirstPolygon; while (pg) { /* reprojecting POLYGONs */ rng = pg->Exterior; cnt = rng->Points; dst_pg = gaiaAddPolygonToGeomColl (dst, cnt, pg->NumInteriors); xx = malloc (sizeof (double) * cnt); yy = malloc (sizeof (double) * cnt); zz = malloc (sizeof (double) * cnt); if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) mm = malloc (sizeof (double) * cnt); for (i = 0; i < cnt; i++) { /* inserting points to be converted in temporary arrays [EXTERIOR RING] */ if (rng->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, i, &x, &y, &z); } else if (rng->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, i, &x, &y, &m); } else if (rng->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, i, &x, &y, &z, &m); } else { gaiaGetPoint (rng->Coords, i, &x, &y); } if (from_angle) { xx[i] = gaiaDegsToRads (x); yy[i] = gaiaDegsToRads (y); } else { xx[i] = x; yy[i] = y; } if (rng->DimensionModel == GAIA_XY_Z || rng->DimensionModel == GAIA_XY_Z_M) zz[i] = z; else zz[i] = 0.0; if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) mm[i] = m; } /* applying reprojection */ if (pj_transform (from_cs, to_cs, cnt, 0, xx, yy, zz) == 0) { /* inserting the reprojected POLYGON in the new GEOMETRY */ dst_rng = dst_pg->Exterior; for (i = 0; i < cnt; i++) { /* setting EXTERIOR RING points */ if (to_angle) { x = gaiaRadsToDegs (xx[i]); y = gaiaRadsToDegs (yy[i]); } else { x = xx[i]; y = yy[i]; } if (rng->DimensionModel == GAIA_XY_Z || rng->DimensionModel == GAIA_XY_Z_M) z = zz[i]; else z = 0.0; if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) m = mm[i]; else m = 0.0; if (dst_rng->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (dst_rng->Coords, i, x, y, z); } else if (dst_rng->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (dst_rng->Coords, i, x, y, m); } else if (dst_rng->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (dst_rng->Coords, i, x, y, z, m); } else { gaiaSetPoint (dst_rng->Coords, i, x, y); } } } else error = 1; free (xx); free (yy); free (zz); if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) free (mm); if (error) goto stop; for (ib = 0; ib < pg->NumInteriors; ib++) { /* processing INTERIOR RINGS */ rng = pg->Interiors + ib; cnt = rng->Points; xx = malloc (sizeof (double) * cnt); yy = malloc (sizeof (double) * cnt); zz = malloc (sizeof (double) * cnt); if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) mm = malloc (sizeof (double) * cnt); for (i = 0; i < cnt; i++) { /* inserting points to be converted in temporary arrays [INTERIOR RING] */ if (rng->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, i, &x, &y, &z); } else if (rng->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, i, &x, &y, &m); } else if (rng->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, i, &x, &y, &z, &m); } else { gaiaGetPoint (rng->Coords, i, &x, &y); } if (from_angle) { xx[i] = gaiaDegsToRads (x); yy[i] = gaiaDegsToRads (y); } else { xx[i] = x; yy[i] = y; } if (rng->DimensionModel == GAIA_XY_Z || rng->DimensionModel == GAIA_XY_Z_M) zz[i] = z; else zz[i] = 0.0; if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) mm[i] = m; } /* applying reprojection */ if (pj_transform (from_cs, to_cs, cnt, 0, xx, yy, zz) == 0) { /* inserting the reprojected POLYGON in the new GEOMETRY */ dst_rng = gaiaAddInteriorRing (dst_pg, ib, cnt); for (i = 0; i < cnt; i++) { /* setting INTERIOR RING points */ if (to_angle) { x = gaiaRadsToDegs (xx[i]); y = gaiaRadsToDegs (yy[i]); } else { x = xx[i]; y = yy[i]; } if (rng->DimensionModel == GAIA_XY_Z || rng->DimensionModel == GAIA_XY_Z_M) z = zz[i]; else z = 0.0; if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) m = mm[i]; else m = 0.0; if (dst_rng->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (dst_rng->Coords, i, x, y, z); } else if (dst_rng->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (dst_rng->Coords, i, x, y, m); } else if (dst_rng->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (dst_rng->Coords, i, x, y, z, m); } else { gaiaSetPoint (dst_rng->Coords, i, x, y); } } } else error = 1; free (xx); free (yy); free (zz); if (rng->DimensionModel == GAIA_XY_M || rng->DimensionModel == GAIA_XY_Z_M) free (mm); if (error) goto stop; } pg = pg->Next; } /* destroying the PROJ4 params */ stop: pj_free (from_cs); pj_free (to_cs); if (error) { /* some error occurred */ gaiaPointPtr pP; gaiaPointPtr pPn; gaiaLinestringPtr pL; gaiaLinestringPtr pLn; gaiaPolygonPtr pA; gaiaPolygonPtr pAn; pP = dst->FirstPoint; while (pP != NULL) { pPn = pP->Next; gaiaFreePoint (pP); pP = pPn; } pL = dst->FirstLinestring; while (pL != NULL) { pLn = pL->Next; gaiaFreeLinestring (pL); pL = pLn; } pA = dst->FirstPolygon; while (pA != NULL) { pAn = pA->Next; gaiaFreePolygon (pA); pA = pAn; } dst->FirstPoint = NULL; dst->LastPoint = NULL; dst->FirstLinestring = NULL; dst->LastLinestring = NULL; dst->FirstPolygon = NULL; dst->LastPolygon = NULL; } if (dst) { gaiaMbrGeometry (dst); dst->DeclaredType = org->DeclaredType; } return dst; }
GAIAGEO_DECLARE gaiaGeomCollPtr gaiaSanitize (gaiaGeomCollPtr geom) { /* / sanitizes a GEOMETRYCOLLECTION: / - repeated vertices are omitted / - ring closure is enforced anyway */ int iv; int ib; double x = 0.0; double y = 0.0; double z = 0.0; double m = 0.0; double last_x = 0.0; double last_y = 0.0; double last_z = 0.0; int points; gaiaPointPtr point; gaiaLinestringPtr line; gaiaLinestringPtr new_line; gaiaPolygonPtr polyg; gaiaPolygonPtr new_polyg; gaiaGeomCollPtr new_geom; gaiaRingPtr i_ring; gaiaRingPtr o_ring; if (!geom) return NULL; if (geom->DimensionModel == GAIA_XY_Z) new_geom = gaiaAllocGeomCollXYZ (); else if (geom->DimensionModel == GAIA_XY_M) new_geom = gaiaAllocGeomCollXYM (); else if (geom->DimensionModel == GAIA_XY_Z_M) new_geom = gaiaAllocGeomCollXYZM (); else new_geom = gaiaAllocGeomColl (); new_geom->Srid = geom->Srid; new_geom->DeclaredType = geom->DeclaredType; point = geom->FirstPoint; while (point) { /* copying POINTs */ gaiaAddPointToGeomCollXYZM (new_geom, point->X, point->Y, point->Z, point->M); point = point->Next; } line = geom->FirstLinestring; while (line) { /* sanitizing LINESTRINGs */ points = 0; for (iv = 0; iv < line->Points; iv++) { /* PASS I - checking points */ z = 0.0; m = 0.0; if (line->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (line->Coords, iv, &x, &y, &z); } else if (line->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (line->Coords, iv, &x, &y, &m); } else if (line->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (line->Coords, iv, &x, &y, &z, &m); } else { gaiaGetPoint (line->Coords, iv, &x, &y); } if (iv > 0) { if (last_x == x && last_y == y && last_z == z) ; else points++; } else points++; last_x = x; last_y = y; last_z = z; } if (points < 2) { /* illegal LINESTRING - copying the original one */ new_line = gaiaAddLinestringToGeomColl (new_geom, line->Points); gaiaCopyLinestringCoords (new_line, line); } else { /* valid LINESTRING - sanitizing */ new_line = gaiaAddLinestringToGeomColl (new_geom, points); points = 0; for (iv = 0; iv < line->Points; iv++) { /* PASS II - inserting points */ z = 0.0; m = 0.0; if (line->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (line->Coords, iv, &x, &y, &z); } else if (line->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (line->Coords, iv, &x, &y, &m); } else if (line->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (line->Coords, iv, &x, &y, &z, &m); } else { gaiaGetPoint (line->Coords, iv, &x, &y); } if (iv > 0) { if (last_x == x && last_y == y && last_z == z) ; else { if (new_line->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (new_line->Coords, points, x, y, z); } else if (new_line->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (new_line->Coords, points, x, y, m); } else if (new_line->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (new_line->Coords, points, x, y, z, m); } else { gaiaSetPoint (new_line->Coords, points, x, y); } points++; } } else { if (new_line->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (new_line->Coords, points, x, y, z); } else if (new_line->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (new_line->Coords, points, x, y, m); } else if (new_line->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (new_line->Coords, points, x, y, z, m); } else { gaiaSetPoint (new_line->Coords, points, x, y); } points++; } last_x = x; last_y = y; last_z = z; } } line = line->Next; } polyg = geom->FirstPolygon; while (polyg) { /* copying POLYGONs */ i_ring = polyg->Exterior; /* sanitizing EXTERIOR RING */ points = 0; for (iv = 0; iv < i_ring->Points; iv++) { /* PASS I - checking points */ z = 0.0; m = 0.0; if (i_ring->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (i_ring->Coords, iv, &x, &y, &z); } else if (i_ring->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (i_ring->Coords, iv, &x, &y, &m); } else if (i_ring->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (i_ring->Coords, iv, &x, &y, &z, &m); } else { gaiaGetPoint (i_ring->Coords, iv, &x, &y); } if (iv > 0) { if (last_x == x && last_y == y && last_z == z) ; else points++; } else points++; last_x = x; last_y = y; last_z = z; } if (last_x == x && last_y == y && last_z == z) ; else { /* forcing RING closure */ points++; } if (points < 4) { /* illegal RING - copying the original one */ new_polyg = gaiaAddPolygonToGeomColl (new_geom, i_ring->Points, polyg->NumInteriors); o_ring = new_polyg->Exterior; gaiaCopyRingCoords (o_ring, i_ring); } else { /* valid RING - sanitizing */ new_polyg = gaiaAddPolygonToGeomColl (new_geom, points, polyg->NumInteriors); o_ring = new_polyg->Exterior; points = 0; for (iv = 0; iv < i_ring->Points; iv++) { /* PASS II - inserting points */ z = 0.0; m = 0.0; if (i_ring->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (i_ring->Coords, iv, &x, &y, &z); } else if (i_ring->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (i_ring->Coords, iv, &x, &y, &m); } else if (i_ring->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (i_ring->Coords, iv, &x, &y, &z, &m); } else { gaiaGetPoint (i_ring->Coords, iv, &x, &y); } if (iv > 0) { if (last_x == x && last_y == y && last_z == z) ; else { if (o_ring->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (o_ring->Coords, points, x, y, z); } else if (o_ring->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (o_ring->Coords, points, x, y, m); } else if (o_ring->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (o_ring->Coords, points, x, y, z, m); } else { gaiaSetPoint (o_ring->Coords, points, x, y); } points++; } } else { if (o_ring->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (o_ring->Coords, points, x, y, z); } else if (o_ring->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (o_ring->Coords, points, x, y, m); } else if (o_ring->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (o_ring->Coords, points, x, y, z, m); } else { gaiaSetPoint (o_ring->Coords, points, x, y); } points++; } last_x = x; last_y = y; last_z = z; } } /* PASS III - forcing RING closure */ z = 0.0; m = 0.0; if (i_ring->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (i_ring->Coords, 0, &x, &y, &z); } else if (i_ring->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (i_ring->Coords, 0, &x, &y, &m); } else if (i_ring->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (i_ring->Coords, 0, &x, &y, &z, &m); } else { gaiaGetPoint (i_ring->Coords, 0, &x, &y); } points = o_ring->Points - 1; if (o_ring->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (o_ring->Coords, points, x, y, z); } else if (o_ring->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (o_ring->Coords, points, x, y, m); } else if (o_ring->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (o_ring->Coords, points, x, y, z, m); } else { gaiaSetPoint (o_ring->Coords, points, x, y); } for (ib = 0; ib < new_polyg->NumInteriors; ib++) { /* copying each INTERIOR RING [if any] */ i_ring = polyg->Interiors + ib; /* sanitizing an INTERIOR RING */ points = 0; for (iv = 0; iv < i_ring->Points; iv++) { /* PASS I - checking points */ z = 0.0; m = 0.0; if (i_ring->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (i_ring->Coords, iv, &x, &y, &z); } else if (i_ring->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (i_ring->Coords, iv, &x, &y, &m); } else if (i_ring->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (i_ring->Coords, iv, &x, &y, &z, &m); } else { gaiaGetPoint (i_ring->Coords, iv, &x, &y); } if (iv > 0) { if (last_x == x && last_y == y && last_z == z) ; else points++; } else points++; last_x = x; last_y = y; last_z = z; } if (last_x == x && last_y == y && last_z == z) ; else { /* forcing RING closure */ points++; } if (points < 4) { /* illegal RING - copying the original one */ o_ring = gaiaAddInteriorRing (new_polyg, ib, i_ring->Points); gaiaCopyRingCoords (o_ring, i_ring); } else { /* valid RING - sanitizing */ o_ring = gaiaAddInteriorRing (new_polyg, ib, points); points = 0; for (iv = 0; iv < i_ring->Points; iv++) { /* PASS II - inserting points */ z = 0.0; m = 0.0; if (i_ring->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (i_ring->Coords, iv, &x, &y, &z); } else if (i_ring->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (i_ring->Coords, iv, &x, &y, &m); } else if (i_ring->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (i_ring->Coords, iv, &x, &y, &z, &m); } else { gaiaGetPoint (i_ring->Coords, iv, &x, &y); } if (iv > 0) { if (last_x == x && last_y == y && last_z == z) ; else { if (o_ring->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (o_ring->Coords, points, x, y, z); } else if (o_ring->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (o_ring->Coords, points, x, y, m); } else if (o_ring->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (o_ring->Coords, points, x, y, z, m); } else { gaiaSetPoint (o_ring->Coords, points, x, y); } points++; } } else { if (o_ring->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (o_ring->Coords, points, x, y, z); } else if (o_ring->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (o_ring->Coords, points, x, y, m); } else if (o_ring->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (o_ring->Coords, points, x, y, z, m); } else { gaiaSetPoint (o_ring->Coords, points, x, y); } points++; } last_x = x; last_y = y; last_z = z; } /* PASS III - forcing RING closure */ z = 0.0; m = 0.0; if (i_ring->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (i_ring->Coords, 0, &x, &y, &z); } else if (i_ring->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (i_ring->Coords, 0, &x, &y, &m); } else if (i_ring->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (i_ring->Coords, 0, &x, &y, &z, &m); } else { gaiaGetPoint (i_ring->Coords, 0, &x, &y); } points = o_ring->Points - 1; if (o_ring->DimensionModel == GAIA_XY_Z) { gaiaSetPointXYZ (o_ring->Coords, points, x, y, z); } else if (o_ring->DimensionModel == GAIA_XY_M) { gaiaSetPointXYM (o_ring->Coords, points, x, y, m); } else if (o_ring->DimensionModel == GAIA_XY_Z_M) { gaiaSetPointXYZM (o_ring->Coords, points, x, y, z, m); } else { gaiaSetPoint (o_ring->Coords, points, x, y); } } } polyg = polyg->Next; } return new_geom; }
GAIAGEO_DECLARE gaiaGeomCollPtr gaiaExtractPolygonsFromGeomColl (gaiaGeomCollPtr geom) { /* extracts any POLYGON from a GeometryCollection */ gaiaGeomCollPtr result; gaiaPolygonPtr pg; gaiaPolygonPtr new_pg; gaiaRingPtr rng; gaiaRingPtr new_rng; int pgs = 0; int iv; int ib; double x; double y; double z; double m; if (!geom) return NULL; pg = geom->FirstPolygon; while (pg) { pgs++; pg = pg->Next; } if (!pgs) return NULL; if (geom->DimensionModel == GAIA_XY_Z_M) result = gaiaAllocGeomCollXYZM (); else if (geom->DimensionModel == GAIA_XY_Z) result = gaiaAllocGeomCollXYZ (); else if (geom->DimensionModel == GAIA_XY_M) result = gaiaAllocGeomCollXYM (); else result = gaiaAllocGeomColl (); pg = geom->FirstPolygon; while (pg) { rng = pg->Exterior; new_pg = gaiaAddPolygonToGeomColl (result, rng->Points, pg->NumInteriors); new_rng = new_pg->Exterior; for (iv = 0; iv < rng->Points; iv++) { if (rng->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, iv, &x, &y, &z, &m); gaiaSetPointXYZM (new_rng->Coords, iv, x, y, z, m); } else if (rng->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, iv, &x, &y, &z); gaiaSetPointXYZ (new_rng->Coords, iv, x, y, z); } else if (rng->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, iv, &x, &y, &m); gaiaSetPointXYM (new_rng->Coords, iv, x, y, m); } else { gaiaGetPoint (rng->Coords, iv, &x, &y); gaiaSetPoint (new_rng->Coords, iv, x, y); } } for (ib = 0; ib < pg->NumInteriors; ib++) { rng = pg->Interiors + ib; new_rng = gaiaAddInteriorRing (new_pg, ib, rng->Points); for (iv = 0; iv < rng->Points; iv++) { if (rng->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, iv, &x, &y, &z, &m); gaiaSetPointXYZM (new_rng->Coords, iv, x, y, z, m); } else if (rng->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, iv, &x, &y, &z); gaiaSetPointXYZ (new_rng->Coords, iv, x, y, z); } else if (rng->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, iv, &x, &y, &m); gaiaSetPointXYM (new_rng->Coords, iv, x, y, m); } else { gaiaGetPoint (rng->Coords, iv, &x, &y); gaiaSetPoint (new_rng->Coords, iv, x, y); } } } pg = pg->Next; } result->Srid = geom->Srid; result->DeclaredType = GAIA_MULTIPOLYGON; return result; }
GAIAGEO_DECLARE gaiaGeomCollPtr gaiaExtractLinestringsFromGeomColl (gaiaGeomCollPtr geom) { /* extracts any LINESTRING from a GeometryCollection */ gaiaGeomCollPtr result; gaiaLinestringPtr ln; gaiaLinestringPtr new_ln; int lns = 0; int iv; double x; double y; double z; double m; if (!geom) return NULL; ln = geom->FirstLinestring; while (ln) { lns++; ln = ln->Next; } if (!lns) return NULL; if (geom->DimensionModel == GAIA_XY_Z_M) result = gaiaAllocGeomCollXYZM (); else if (geom->DimensionModel == GAIA_XY_Z) result = gaiaAllocGeomCollXYZ (); else if (geom->DimensionModel == GAIA_XY_M) result = gaiaAllocGeomCollXYM (); else result = gaiaAllocGeomColl (); ln = geom->FirstLinestring; while (ln) { new_ln = gaiaAddLinestringToGeomColl (result, ln->Points); for (iv = 0; iv < ln->Points; iv++) { if (ln->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (ln->Coords, iv, &x, &y, &z, &m); gaiaSetPointXYZM (new_ln->Coords, iv, x, y, z, m); } else if (ln->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (ln->Coords, iv, &x, &y, &z); gaiaSetPointXYZ (new_ln->Coords, iv, x, y, z); } else if (ln->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (ln->Coords, iv, &x, &y, &m); gaiaSetPointXYM (new_ln->Coords, iv, x, y, m); } else { gaiaGetPoint (ln->Coords, iv, &x, &y); gaiaSetPoint (new_ln->Coords, iv, x, y); } } ln = ln->Next; } result->Srid = geom->Srid; result->DeclaredType = GAIA_MULTILINESTRING; return result; }
GAIAGEO_DECLARE gaiaGeomCollPtr gaiaSnapToGrid (gaiaGeomCollPtr geom, double origin_x, double origin_y, double origin_z, double origin_m, double size_x, double size_y, double size_z, double size_m) { /* creating a Geometry snapped to a regular Grid */ gaiaGeomCollPtr result; int pts = 0; int lns = 0; int pgs = 0; gaiaPointPtr pt; gaiaLinestringPtr ln; gaiaPolygonPtr pg; if (!geom) return NULL; /* creating the output Geometry */ if (geom->DimensionModel == GAIA_XY_Z) result = gaiaAllocGeomCollXYZ (); else if (geom->DimensionModel == GAIA_XY_M) result = gaiaAllocGeomCollXYM (); else if (geom->DimensionModel == GAIA_XY_Z_M) result = gaiaAllocGeomCollXYZM (); else result = gaiaAllocGeomColl (); /* snapping elementary Geometries to the given Grid */ pt = geom->FirstPoint; while (pt) { /* snapping POINTs */ auxGridSnapPoint (geom->DimensionModel, pt, result, origin_x, origin_y, origin_z, origin_m, size_x, size_y, size_z, size_m); pt = pt->Next; } ln = geom->FirstLinestring; while (ln) { /* snapping LINESTRINGs */ auxGridSnapLinestring (ln, result, origin_x, origin_y, origin_z, origin_m, size_x, size_y, size_z, size_m); ln = ln->Next; } pg = geom->FirstPolygon; while (pg) { /* snapping POLYGONs */ auxGridSnapPolygon (pg, result, origin_x, origin_y, origin_z, origin_m, size_x, size_y, size_z, size_m); pg = pg->Next; } /* validating the output Geometry */ pt = result->FirstPoint; while (pt) { /* counting how many POINTs are there */ pts++; pt = pt->Next; } ln = result->FirstLinestring; while (ln) { /* counting how many LINESTRINGs are there */ lns++; ln = ln->Next; } pg = result->FirstPolygon; while (pg) { /* counting how many POLYGONs are there */ pgs++; pg = pg->Next; } if (pts == 0 && lns == 0 && pgs == 0) { /* empty result */ gaiaFreeGeomColl (result); return NULL; } /* final adjustment */ result->Srid = geom->Srid; if (pts == 1 && lns == 0 && pgs == 0) { if (geom->DeclaredType == GAIA_GEOMETRYCOLLECTION) result->DeclaredType = GAIA_GEOMETRYCOLLECTION; else if (geom->DeclaredType == GAIA_MULTIPOINT) result->DeclaredType = GAIA_MULTIPOINT; else result->DeclaredType = GAIA_POINT; } else if (pts == 0 && lns == 1 && pgs == 0) { if (geom->DeclaredType == GAIA_GEOMETRYCOLLECTION) result->DeclaredType = GAIA_GEOMETRYCOLLECTION; else if (geom->DeclaredType == GAIA_MULTILINESTRING) result->DeclaredType = GAIA_MULTILINESTRING; else result->DeclaredType = GAIA_LINESTRING; } else if (pts == 0 && lns == 0 && pgs == 1) { if (geom->DeclaredType == GAIA_GEOMETRYCOLLECTION) result->DeclaredType = GAIA_GEOMETRYCOLLECTION; else if (geom->DeclaredType == GAIA_MULTIPOLYGON) result->DeclaredType = GAIA_MULTIPOLYGON; else result->DeclaredType = GAIA_POLYGON; } else if (pts > 1 && lns == 0 && pgs == 0) { if (geom->DeclaredType == GAIA_GEOMETRYCOLLECTION) result->DeclaredType = GAIA_GEOMETRYCOLLECTION; else result->DeclaredType = GAIA_MULTIPOINT; } else if (pts == 0 && lns > 1 && pgs == 0) { if (geom->DeclaredType == GAIA_GEOMETRYCOLLECTION) result->DeclaredType = GAIA_GEOMETRYCOLLECTION; else result->DeclaredType = GAIA_MULTILINESTRING; } else if (pts == 0 && lns == 0 && pgs > 1) { if (geom->DeclaredType == GAIA_GEOMETRYCOLLECTION) result->DeclaredType = GAIA_GEOMETRYCOLLECTION; else result->DeclaredType = GAIA_MULTIPOLYGON; } else result->DeclaredType = GAIA_GEOMETRYCOLLECTION; return result; }
static gaiaGeomCollPtr kml_validate_geometry (struct kml_data *p_data, gaiaGeomCollPtr chain) { int xy = 0; int xyz = 0; int pts = 0; int lns = 0; int pgs = 0; gaiaPointPtr pt; gaiaLinestringPtr ln; gaiaPolygonPtr pg; gaiaPointPtr save_pt = NULL; gaiaLinestringPtr save_ln = NULL; gaiaPolygonPtr save_pg = NULL; gaiaRingPtr i_ring; gaiaRingPtr o_ring; int ib; gaiaGeomCollPtr g; gaiaGeomCollPtr geom; g = chain; while (g) { if (g != chain) { if (g->DimensionModel == GAIA_XY) xy++; if (g->DimensionModel == GAIA_XY_Z) xyz++; } pt = g->FirstPoint; while (pt) { pts++; save_pt = pt; pt = pt->Next; } ln = g->FirstLinestring; while (ln) { lns++; save_ln = ln; ln = ln->Next; } pg = g->FirstPolygon; while (pg) { pgs++; save_pg = pg; pg = pg->Next; } g = g->Next; } if (pts == 1 && lns == 0 && pgs == 0) { /* POINT */ if (xy > 0) { /* 2D [XY] */ geom = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); if (chain->DeclaredType == GAIA_GEOMETRYCOLLECTION) geom->DeclaredType = GAIA_MULTIPOINT; else geom->DeclaredType = GAIA_POINT; gaiaAddPointToGeomColl (geom, save_pt->X, save_pt->Y); return geom; } else { /* 3D [XYZ] */ geom = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); if (chain->DeclaredType == GAIA_GEOMETRYCOLLECTION) geom->DeclaredType = GAIA_MULTIPOINT; else geom->DeclaredType = GAIA_POINT; gaiaAddPointToGeomCollXYZ (geom, save_pt->X, save_pt->Y, save_pt->Z); return geom; } } if (pts == 0 && lns == 1 && pgs == 0) { /* LINESTRING */ if (xy > 0) { /* 2D [XY] */ geom = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); } else { /* 3D [XYZ] */ geom = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); } if (chain->DeclaredType == GAIA_GEOMETRYCOLLECTION) geom->DeclaredType = GAIA_MULTILINESTRING; else geom->DeclaredType = GAIA_LINESTRING; ln = gaiaAddLinestringToGeomColl (geom, save_ln->Points); gaiaCopyLinestringCoords (ln, save_ln); return geom; } if (pts == 0 && lns == 0 && pgs == 1) { /* POLYGON */ if (xy > 0) { /* 2D [XY] */ geom = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); } else { /* 3D [XYZ] */ geom = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); } if (chain->DeclaredType == GAIA_GEOMETRYCOLLECTION) geom->DeclaredType = GAIA_MULTIPOLYGON; else geom->DeclaredType = GAIA_POLYGON; i_ring = save_pg->Exterior; pg = gaiaAddPolygonToGeomColl (geom, i_ring->Points, save_pg->NumInteriors); o_ring = pg->Exterior; gaiaCopyRingCoords (o_ring, i_ring); for (ib = 0; ib < save_pg->NumInteriors; ib++) { i_ring = save_pg->Interiors + ib; o_ring = gaiaAddInteriorRing (pg, ib, i_ring->Points); gaiaCopyRingCoords (o_ring, i_ring); } return geom; } if (pts >= 1 && lns == 0 && pgs == 0) { /* MULTIPOINT */ if (xy > 0) { /* 2D [XY] */ geom = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_MULTIPOINT; g = chain; while (g) { pt = g->FirstPoint; while (pt) { gaiaAddPointToGeomColl (geom, pt->X, pt->Y); pt = pt->Next; } g = g->Next; } return geom; } else { /* 3D [XYZ] */ geom = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_MULTIPOINT; g = chain; while (g) { pt = g->FirstPoint; while (pt) { gaiaAddPointToGeomCollXYZ (geom, pt->X, pt->Y, pt->Z); pt = pt->Next; } g = g->Next; } return geom; } } if (pts == 0 && lns >= 1 && pgs == 0) { /* MULTILINESTRING */ if (xy > 0) { /* 2D [XY] */ geom = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_MULTILINESTRING; g = chain; while (g) { ln = g->FirstLinestring; while (ln) { save_ln = gaiaAddLinestringToGeomColl (geom, ln->Points); gaiaCopyLinestringCoords (save_ln, ln); ln = ln->Next; } g = g->Next; } return geom; } else { /* 3D [XYZ] */ geom = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_MULTILINESTRING; g = chain; while (g) { ln = g->FirstLinestring; while (ln) { save_ln = gaiaAddLinestringToGeomColl (geom, ln->Points); gaiaCopyLinestringCoords (save_ln, ln); ln = ln->Next; } g = g->Next; } return geom; } } if (pts == 0 && lns == 0 && pgs >= 1) { /* MULTIPOLYGON */ if (xy > 0) { /* 2D [XY] */ geom = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_MULTIPOLYGON; g = chain; while (g) { pg = g->FirstPolygon; while (pg) { i_ring = pg->Exterior; save_pg = gaiaAddPolygonToGeomColl (geom, i_ring->Points, pg->NumInteriors); o_ring = save_pg->Exterior; gaiaCopyRingCoords (o_ring, i_ring); for (ib = 0; ib < pg->NumInteriors; ib++) { i_ring = pg->Interiors + ib; o_ring = gaiaAddInteriorRing (save_pg, ib, i_ring->Points); gaiaCopyRingCoords (o_ring, i_ring); } pg = pg->Next; } g = g->Next; } return geom; } else { /* 3D [XYZ] */ geom = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_MULTIPOLYGON; g = chain; while (g) { pg = g->FirstPolygon; while (pg) { i_ring = pg->Exterior; save_pg = gaiaAddPolygonToGeomColl (geom, i_ring->Points, pg->NumInteriors); o_ring = save_pg->Exterior; gaiaCopyRingCoords (o_ring, i_ring); for (ib = 0; ib < pg->NumInteriors; ib++) { i_ring = pg->Interiors + ib; o_ring = gaiaAddInteriorRing (save_pg, ib, i_ring->Points); gaiaCopyRingCoords (o_ring, i_ring); } pg = pg->Next; } g = g->Next; } return geom; } } if ((pts + lns + pgs) > 0) { /* GEOMETRYCOLLECTION */ if (xy > 0) { /* 2D [XY] */ geom = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_GEOMETRYCOLLECTION; g = chain; while (g) { pt = g->FirstPoint; while (pt) { gaiaAddPointToGeomColl (geom, pt->X, pt->Y); pt = pt->Next; } ln = g->FirstLinestring; while (ln) { save_ln = gaiaAddLinestringToGeomColl (geom, ln->Points); gaiaCopyLinestringCoords (save_ln, ln); ln = ln->Next; } pg = g->FirstPolygon; while (pg) { i_ring = pg->Exterior; save_pg = gaiaAddPolygonToGeomColl (geom, i_ring->Points, pg->NumInteriors); o_ring = save_pg->Exterior; gaiaCopyRingCoords (o_ring, i_ring); for (ib = 0; ib < pg->NumInteriors; ib++) { i_ring = pg->Interiors + ib; o_ring = gaiaAddInteriorRing (save_pg, ib, i_ring->Points); gaiaCopyRingCoords (o_ring, i_ring); } pg = pg->Next; } g = g->Next; } return geom; } else { /* 3D [XYZ] */ geom = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); geom->DeclaredType = GAIA_GEOMETRYCOLLECTION; g = chain; while (g) { pt = g->FirstPoint; while (pt) { gaiaAddPointToGeomCollXYZ (geom, pt->X, pt->Y, pt->Z); pt = pt->Next; } ln = g->FirstLinestring; while (ln) { save_ln = gaiaAddLinestringToGeomColl (geom, ln->Points); gaiaCopyLinestringCoords (save_ln, ln); ln = ln->Next; } pg = g->FirstPolygon; while (pg) { i_ring = pg->Exterior; save_pg = gaiaAddPolygonToGeomColl (geom, i_ring->Points, pg->NumInteriors); o_ring = save_pg->Exterior; gaiaCopyRingCoords (o_ring, i_ring); for (ib = 0; ib < pg->NumInteriors; ib++) { i_ring = pg->Interiors + ib; o_ring = gaiaAddInteriorRing (save_pg, ib, i_ring->Points); gaiaCopyRingCoords (o_ring, i_ring); } pg = pg->Next; } g = g->Next; } return geom; } } return NULL; }
static int kml_parse_linestring (struct kml_data *p_data, gaiaGeomCollPtr geom, kmlNodePtr node, kmlNodePtr * next) { /* parsing a <LineString> */ gaiaGeomCollPtr ln; gaiaGeomCollPtr last; gaiaLinestringPtr new_ln; gaiaPointPtr pt; int iv; int has_z = 1; int points = 0; gaiaDynamicLinePtr dyn = gaiaAllocDynamicLine (); kmlMapDynAlloc (p_data, KML_DYN_DYNLINE, dyn); if (strcmp (node->Tag, "coordinates") == 0) { /* parsing a KML <LineString> */ if (!kml_parse_coordinates (node->Coordinates, dyn, &has_z)) goto error; node = node->Next; if (node == NULL) goto error; if (strcmp (node->Tag, "coordinates") == 0) ; else goto error; node = node->Next; if (node == NULL) goto error; if (strcmp (node->Tag, "LineString") == 0) ; else goto error; *next = node->Next; } /* ok, KML nodes match as expected */ points = kml_count_dyn_points (dyn); if (points < 2) goto error; if (has_z) { ln = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, ln); new_ln = gaiaAddLinestringToGeomColl (ln, points); pt = dyn->First; iv = 0; while (pt) { gaiaSetPointXYZ (new_ln->Coords, iv, pt->X, pt->Y, pt->Z); iv++; pt = pt->Next; } } else { ln = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, ln); new_ln = gaiaAddLinestringToGeomColl (ln, points); pt = dyn->First; iv = 0; while (pt) { gaiaSetPoint (new_ln->Coords, iv, pt->X, pt->Y); iv++; pt = pt->Next; } } last = geom; while (1) { /* searching the last Geometry within chain */ if (last->Next == NULL) break; last = last->Next; } last->Next = ln; gaiaFreeDynamicLine (dyn); return 1; error: gaiaFreeDynamicLine (dyn); return 0; }
GAIAGEO_DECLARE gaiaGeomCollPtr gaiaLinearize (gaiaGeomCollPtr geom, int force_multi) { /* attempts to rearrange a generic Geometry into a (multi)linestring */ int pts = 0; int lns = 0; gaiaGeomCollPtr result; gaiaPointPtr pt; gaiaLinestringPtr ln; gaiaLinestringPtr new_ln; gaiaPolygonPtr pg; gaiaRingPtr rng; int iv; int ib; double x; double y; double m; double z; if (!geom) return NULL; pt = geom->FirstPoint; while (pt) { pts++; pt = pt->Next; } ln = geom->FirstLinestring; while (ln) { lns++; ln = ln->Next; } if (pts || lns) return NULL; if (geom->DimensionModel == GAIA_XY_Z_M) result = gaiaAllocGeomCollXYZM (); else if (geom->DimensionModel == GAIA_XY_Z) result = gaiaAllocGeomCollXYZ (); else if (geom->DimensionModel == GAIA_XY_M) result = gaiaAllocGeomCollXYM (); else result = gaiaAllocGeomColl (); result->Srid = geom->Srid; if (force_multi) result->DeclaredType = GAIA_MULTILINESTRING; pg = geom->FirstPolygon; while (pg) { /* dissolving any POLYGON as simple LINESTRINGs (rings) */ rng = pg->Exterior; new_ln = gaiaAddLinestringToGeomColl (result, rng->Points); for (iv = 0; iv < rng->Points; iv++) { /* copying the EXTERIOR RING as LINESTRING */ if (geom->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, iv, &x, &y, &z, &m); gaiaSetPointXYZM (new_ln->Coords, iv, x, y, z, m); } else if (geom->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, iv, &x, &y, &z); gaiaSetPointXYZ (new_ln->Coords, iv, x, y, z); } else if (geom->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, iv, &x, &y, &m); gaiaSetPointXYM (new_ln->Coords, iv, x, y, m); } else { gaiaGetPoint (rng->Coords, iv, &x, &y); gaiaSetPoint (new_ln->Coords, iv, x, y); } } for (ib = 0; ib < pg->NumInteriors; ib++) { rng = pg->Interiors + ib; new_ln = gaiaAddLinestringToGeomColl (result, rng->Points); for (iv = 0; iv < rng->Points; iv++) { /* copying an INTERIOR RING as LINESTRING */ if (geom->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, iv, &x, &y, &z, &m); gaiaSetPointXYZM (new_ln->Coords, iv, x, y, z, m); } else if (geom->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, iv, &x, &y, &z); gaiaSetPointXYZ (new_ln->Coords, iv, x, y, z); } else if (geom->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, iv, &x, &y, &m); gaiaSetPointXYM (new_ln->Coords, iv, x, y, m); } else { gaiaGetPoint (rng->Coords, iv, &x, &y); gaiaSetPoint (new_ln->Coords, iv, x, y); } } } pg = pg->Next; } if (result->FirstLinestring == NULL) { gaiaFreeGeomColl (result); return NULL; } return result; }
static int kml_parse_polygon (struct kml_data *p_data, gaiaGeomCollPtr geom, kmlNodePtr node, kmlNodePtr * next_n) { /* parsing a <Polygon> */ int interior; int has_z; int inners; int outers; int points; int iv; int ib = 0; gaiaGeomCollPtr pg; gaiaGeomCollPtr last_g; gaiaPolygonPtr new_pg; gaiaRingPtr ring; gaiaDynamicLinePtr dyn; gaiaPointPtr pt; gaiaDynamicLinePtr exterior_ring; kmlNodePtr next; kmlDynamicRingPtr dyn_rng; kmlDynamicPolygonPtr dyn_pg = kml_alloc_dyn_polygon (p_data); kmlNodePtr n = node; while (n) { /* looping on rings */ if (strcmp (n->Tag, "Polygon") == 0) { *next_n = n->Next; break; } dyn = kml_parse_ring (n, &interior, &has_z, &next); if (dyn == NULL) goto error; if (kml_count_dyn_points (dyn) < 4) { /* cannot be a valid ring */ goto error; } /* checking if the ring is closed */ if (has_z) { if (dyn->First->X == dyn->Last->X && dyn->First->Y == dyn->Last->Y && dyn->First->Z == dyn->Last->Z) ; else goto error; } else { if (dyn->First->X == dyn->Last->X && dyn->First->Y == dyn->Last->Y) ; else goto error; } kml_add_polygon_ring (dyn_pg, dyn, interior, has_z); n = next; } /* ok, KML nodes match as expected */ inners = 0; outers = 0; has_z = 1; dyn_rng = dyn_pg->first; while (dyn_rng) { /* verifying the rings collection */ if (dyn_rng->has_z == 0) has_z = 0; if (dyn_rng->interior) inners++; else { outers++; points = kml_count_dyn_points (dyn_rng->ring); exterior_ring = dyn_rng->ring; } dyn_rng = dyn_rng->next; } if (outers != 1) /* no exterior ring declared */ goto error; if (has_z) { pg = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); new_pg = gaiaAddPolygonToGeomColl (pg, points, inners); /* initializing the EXTERIOR RING */ ring = new_pg->Exterior; pt = exterior_ring->First; iv = 0; while (pt) { gaiaSetPointXYZ (ring->Coords, iv, pt->X, pt->Y, pt->Z); iv++; pt = pt->Next; } dyn_rng = dyn_pg->first; while (dyn_rng) { /* initializing any INTERIOR RING */ if (dyn_rng->interior == 0) { dyn_rng = dyn_rng->next; continue; } points = kml_count_dyn_points (dyn_rng->ring); ring = gaiaAddInteriorRing (new_pg, ib, points); ib++; pt = dyn_rng->ring->First; iv = 0; while (pt) { gaiaSetPointXYZ (ring->Coords, iv, pt->X, pt->Y, pt->Z); iv++; pt = pt->Next; } dyn_rng = dyn_rng->next; } } else { pg = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pg); new_pg = gaiaAddPolygonToGeomColl (pg, points, inners); /* initializing the EXTERIOR RING */ ring = new_pg->Exterior; pt = exterior_ring->First; iv = 0; while (pt) { gaiaSetPoint (ring->Coords, iv, pt->X, pt->Y); iv++; pt = pt->Next; } dyn_rng = dyn_pg->first; while (dyn_rng) { /* initializing any INTERIOR RING */ if (dyn_rng->interior == 0) { dyn_rng = dyn_rng->next; continue; } points = kml_count_dyn_points (dyn_rng->ring); ring = gaiaAddInteriorRing (new_pg, ib, points); ib++; pt = dyn_rng->ring->First; iv = 0; while (pt) { gaiaSetPoint (ring->Coords, iv, pt->X, pt->Y); iv++; pt = pt->Next; } dyn_rng = dyn_rng->next; } } last_g = geom; while (1) { /* searching the last Geometry within chain */ if (last_g->Next == NULL) break; last_g = last_g->Next; } last_g->Next = pg; kml_free_dyn_polygon (dyn_pg); return 1; error: kml_free_dyn_polygon (dyn_pg); return 0; }
GAIAGEO_DECLARE gaiaGeomCollPtr gaiaDissolvePoints (gaiaGeomCollPtr geom) { /* attempts to dissolve a Geometry into points */ gaiaGeomCollPtr result; gaiaPointPtr pt; gaiaLinestringPtr ln; gaiaPolygonPtr pg; gaiaRingPtr rng; int iv; int ib; double x; double y; double z; double m; if (!geom) return NULL; if (geom->DimensionModel == GAIA_XY_Z_M) result = gaiaAllocGeomCollXYZM (); else if (geom->DimensionModel == GAIA_XY_Z) result = gaiaAllocGeomCollXYZ (); else if (geom->DimensionModel == GAIA_XY_M) result = gaiaAllocGeomCollXYM (); else result = gaiaAllocGeomColl (); pt = geom->FirstPoint; while (pt) { if (geom->DimensionModel == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (result, pt->X, pt->Y, pt->Z, pt->M); else if (geom->DimensionModel == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (result, pt->X, pt->Y, pt->Z); else if (geom->DimensionModel == GAIA_XY_M) gaiaAddPointToGeomCollXYM (result, pt->X, pt->Y, pt->M); else gaiaAddPointToGeomColl (result, pt->X, pt->Y); pt = pt->Next; } ln = geom->FirstLinestring; while (ln) { for (iv = 0; iv < ln->Points; iv++) { if (ln->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (ln->Coords, iv, &x, &y, &z, &m); } else if (ln->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (ln->Coords, iv, &x, &y, &z); } else if (ln->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (ln->Coords, iv, &x, &y, &m); } else { gaiaGetPoint (ln->Coords, iv, &x, &y); } if (geom->DimensionModel == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (result, x, y, z, m); else if (geom->DimensionModel == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (result, x, y, z); else if (geom->DimensionModel == GAIA_XY_M) gaiaAddPointToGeomCollXYM (result, x, y, m); else gaiaAddPointToGeomColl (result, x, y); } ln = ln->Next; } pg = geom->FirstPolygon; while (pg) { rng = pg->Exterior; for (iv = 0; iv < rng->Points; iv++) { /* exterior Ring */ if (rng->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, iv, &x, &y, &z, &m); } else if (rng->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, iv, &x, &y, &z); } else if (rng->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, iv, &x, &y, &m); } else { gaiaGetPoint (rng->Coords, iv, &x, &y); } if (geom->DimensionModel == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (result, x, y, z, m); else if (geom->DimensionModel == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (result, x, y, z); else if (geom->DimensionModel == GAIA_XY_M) gaiaAddPointToGeomCollXYM (result, x, y, m); else gaiaAddPointToGeomColl (result, x, y); } for (ib = 0; ib < pg->NumInteriors; ib++) { rng = pg->Interiors + ib; for (iv = 0; iv < rng->Points; iv++) { /* interior Ring */ if (rng->DimensionModel == GAIA_XY_Z_M) { gaiaGetPointXYZM (rng->Coords, iv, &x, &y, &z, &m); } else if (rng->DimensionModel == GAIA_XY_Z) { gaiaGetPointXYZ (rng->Coords, iv, &x, &y, &z); } else if (rng->DimensionModel == GAIA_XY_M) { gaiaGetPointXYM (rng->Coords, iv, &x, &y, &m); } else { gaiaGetPoint (rng->Coords, iv, &x, &y); } if (geom->DimensionModel == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (result, x, y, z, m); else if (geom->DimensionModel == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (result, x, y, z); else if (geom->DimensionModel == GAIA_XY_M) gaiaAddPointToGeomCollXYM (result, x, y, m); else gaiaAddPointToGeomColl (result, x, y); } } pg = pg->Next; } result->Srid = geom->Srid; return result; }
static int kml_parse_point (struct kml_data *p_data, gaiaGeomCollPtr geom, kmlNodePtr node, kmlNodePtr * next) { /* parsing a <Point> */ double x; double y; double z; int has_z; gaiaGeomCollPtr pt; gaiaGeomCollPtr last; if (strcmp (node->Tag, "coordinates") == 0) { /* parsing a KML <Point> */ if (!kml_parse_point_v2 (node->Coordinates, &x, &y, &z, &has_z)) return 0; node = node->Next; if (node == NULL) return 0; if (strcmp (node->Tag, "coordinates") == 0) ; else return 0; node = node->Next; if (node == NULL) return 0; if (strcmp (node->Tag, "Point") == 0) ; else return 0; *next = node->Next; goto ok; } return 0; ok: /* ok, KML nodes match as expected */ if (has_z) { pt = gaiaAllocGeomCollXYZ (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pt); gaiaAddPointToGeomCollXYZ (pt, x, y, z); } else { pt = gaiaAllocGeomColl (); kmlMapDynAlloc (p_data, KML_DYN_GEOM, pt); gaiaAddPointToGeomColl (pt, x, y); } last = geom; while (1) { /* searching the last Geometry within chain */ if (last->Next == NULL) break; last = last->Next; } last->Next = pt; return 1; }
static gaiaGeomCollPtr fromGeosGeometry (const GEOSGeometry * geos, const int dimension_model) { /* converting a GEOS Geometry into a GAIA Geometry */ int type; int itemType; unsigned int dims; int iv; int ib; int it; int sub_it; int nItems; int nSubItems; int holes; unsigned int points; double x; double y; double z; const GEOSCoordSequence *cs; const GEOSGeometry *geos_ring; const GEOSGeometry *geos_item; const GEOSGeometry *geos_sub_item; gaiaGeomCollPtr gaia = NULL; gaiaLinestringPtr ln; gaiaPolygonPtr pg; gaiaRingPtr rng; if (!geos) return NULL; type = GEOSGeomTypeId (geos); switch (type) { case GEOS_POINT: if (dimension_model == GAIA_XY_Z) gaia = gaiaAllocGeomCollXYZ (); else if (dimension_model == GAIA_XY_M) gaia = gaiaAllocGeomCollXYM (); else if (dimension_model == GAIA_XY_Z_M) gaia = gaiaAllocGeomCollXYZM (); else gaia = gaiaAllocGeomColl (); gaia->DeclaredType = GAIA_POINT; gaia->Srid = GEOSGetSRID (geos); cs = GEOSGeom_getCoordSeq (geos); GEOSCoordSeq_getDimensions (cs, &dims); if (dims == 3) { GEOSCoordSeq_getX (cs, 0, &x); GEOSCoordSeq_getY (cs, 0, &y); GEOSCoordSeq_getZ (cs, 0, &z); } else { GEOSCoordSeq_getX (cs, 0, &x); GEOSCoordSeq_getY (cs, 0, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (gaia, x, y, z); else if (dimension_model == GAIA_XY_M) gaiaAddPointToGeomCollXYM (gaia, x, y, 0.0); else if (dimension_model == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (gaia, x, y, z, 0.0); else gaiaAddPointToGeomColl (gaia, x, y); break; case GEOS_LINESTRING: if (dimension_model == GAIA_XY_Z) gaia = gaiaAllocGeomCollXYZ (); else if (dimension_model == GAIA_XY_M) gaia = gaiaAllocGeomCollXYM (); else if (dimension_model == GAIA_XY_Z_M) gaia = gaiaAllocGeomCollXYZM (); else gaia = gaiaAllocGeomColl (); gaia->DeclaredType = GAIA_LINESTRING; gaia->Srid = GEOSGetSRID (geos); cs = GEOSGeom_getCoordSeq (geos); GEOSCoordSeq_getDimensions (cs, &dims); GEOSCoordSeq_getSize (cs, &points); ln = gaiaAddLinestringToGeomColl (gaia, points); for (iv = 0; iv < (int) points; iv++) { if (dims == 3) { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); GEOSCoordSeq_getZ (cs, iv, &z); } else { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) { gaiaSetPointXYZ (ln->Coords, iv, x, y, z); } else if (dimension_model == GAIA_XY_M) { gaiaSetPointXYM (ln->Coords, iv, x, y, 0.0); } else if (dimension_model == GAIA_XY_Z_M) { gaiaSetPointXYZM (ln->Coords, iv, x, y, z, 0.0); } else { gaiaSetPoint (ln->Coords, iv, x, y); } } break; case GEOS_POLYGON: if (dimension_model == GAIA_XY_Z) gaia = gaiaAllocGeomCollXYZ (); else if (dimension_model == GAIA_XY_M) gaia = gaiaAllocGeomCollXYM (); else if (dimension_model == GAIA_XY_Z_M) gaia = gaiaAllocGeomCollXYZM (); else gaia = gaiaAllocGeomColl (); gaia->DeclaredType = GAIA_POLYGON; gaia->Srid = GEOSGetSRID (geos); /* exterior ring */ holes = GEOSGetNumInteriorRings (geos); geos_ring = GEOSGetExteriorRing (geos); cs = GEOSGeom_getCoordSeq (geos_ring); GEOSCoordSeq_getDimensions (cs, &dims); GEOSCoordSeq_getSize (cs, &points); pg = gaiaAddPolygonToGeomColl (gaia, points, holes); rng = pg->Exterior; for (iv = 0; iv < (int) points; iv++) { if (dims == 3) { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); GEOSCoordSeq_getZ (cs, iv, &z); } else { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) { gaiaSetPointXYZ (rng->Coords, iv, x, y, z); } else if (dimension_model == GAIA_XY_M) { gaiaSetPointXYM (rng->Coords, iv, x, y, 0.0); } else if (dimension_model == GAIA_XY_Z_M) { gaiaSetPointXYZM (rng->Coords, iv, x, y, z, 0.0); } else { gaiaSetPoint (rng->Coords, iv, x, y); } } for (ib = 0; ib < holes; ib++) { /* interior rings */ geos_ring = GEOSGetInteriorRingN (geos, ib); cs = GEOSGeom_getCoordSeq (geos_ring); GEOSCoordSeq_getDimensions (cs, &dims); GEOSCoordSeq_getSize (cs, &points); rng = gaiaAddInteriorRing (pg, ib, points); for (iv = 0; iv < (int) points; iv++) { if (dims == 3) { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); GEOSCoordSeq_getZ (cs, iv, &z); } else { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) { gaiaSetPointXYZ (rng->Coords, iv, x, y, z); } else if (dimension_model == GAIA_XY_M) { gaiaSetPointXYM (rng->Coords, iv, x, y, 0.0); } else if (dimension_model == GAIA_XY_Z_M) { gaiaSetPointXYZM (rng->Coords, iv, x, y, z, 0.0); } else { gaiaSetPoint (rng->Coords, iv, x, y); } } } break; case GEOS_MULTIPOINT: case GEOS_MULTILINESTRING: case GEOS_MULTIPOLYGON: case GEOS_GEOMETRYCOLLECTION: if (dimension_model == GAIA_XY_Z) gaia = gaiaAllocGeomCollXYZ (); else if (dimension_model == GAIA_XY_M) gaia = gaiaAllocGeomCollXYM (); else if (dimension_model == GAIA_XY_Z_M) gaia = gaiaAllocGeomCollXYZM (); else gaia = gaiaAllocGeomColl (); if (type == GEOS_MULTIPOINT) gaia->DeclaredType = GAIA_MULTIPOINT; else if (type == GEOS_MULTILINESTRING) gaia->DeclaredType = GAIA_MULTILINESTRING; else if (type == GEOS_MULTIPOLYGON) gaia->DeclaredType = GAIA_MULTIPOLYGON; else gaia->DeclaredType = GAIA_GEOMETRYCOLLECTION; gaia->Srid = GEOSGetSRID (geos); nItems = GEOSGetNumGeometries (geos); for (it = 0; it < nItems; it++) { /* looping on elementaty geometries */ geos_item = GEOSGetGeometryN (geos, it); itemType = GEOSGeomTypeId (geos_item); switch (itemType) { case GEOS_POINT: cs = GEOSGeom_getCoordSeq (geos_item); GEOSCoordSeq_getDimensions (cs, &dims); if (dims == 3) { GEOSCoordSeq_getX (cs, 0, &x); GEOSCoordSeq_getY (cs, 0, &y); GEOSCoordSeq_getZ (cs, 0, &z); } else { GEOSCoordSeq_getX (cs, 0, &x); GEOSCoordSeq_getY (cs, 0, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) gaiaAddPointToGeomCollXYZ (gaia, x, y, z); else if (dimension_model == GAIA_XY_M) gaiaAddPointToGeomCollXYM (gaia, x, y, 0.0); else if (dimension_model == GAIA_XY_Z_M) gaiaAddPointToGeomCollXYZM (gaia, x, y, z, 0.0); else gaiaAddPointToGeomColl (gaia, x, y); break; case GEOS_LINESTRING: cs = GEOSGeom_getCoordSeq (geos_item); GEOSCoordSeq_getDimensions (cs, &dims); GEOSCoordSeq_getSize (cs, &points); ln = gaiaAddLinestringToGeomColl (gaia, points); for (iv = 0; iv < (int) points; iv++) { if (dims == 3) { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); GEOSCoordSeq_getZ (cs, iv, &z); } else { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) { gaiaSetPointXYZ (ln->Coords, iv, x, y, z); } else if (dimension_model == GAIA_XY_M) { gaiaSetPointXYM (ln->Coords, iv, x, y, 0.0); } else if (dimension_model == GAIA_XY_Z_M) { gaiaSetPointXYZM (ln->Coords, iv, x, y, z, 0.0); } else { gaiaSetPoint (ln->Coords, iv, x, y); } } break; case GEOS_MULTILINESTRING: nSubItems = GEOSGetNumGeometries (geos_item); for (sub_it = 0; sub_it < nSubItems; sub_it++) { /* looping on elementaty geometries */ geos_sub_item = GEOSGetGeometryN (geos_item, sub_it); cs = GEOSGeom_getCoordSeq (geos_sub_item); GEOSCoordSeq_getDimensions (cs, &dims); GEOSCoordSeq_getSize (cs, &points); ln = gaiaAddLinestringToGeomColl (gaia, points); for (iv = 0; iv < (int) points; iv++) { if (dims == 3) { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); GEOSCoordSeq_getZ (cs, iv, &z); } else { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) { gaiaSetPointXYZ (ln->Coords, iv, x, y, z); } else if (dimension_model == GAIA_XY_M) { gaiaSetPointXYM (ln->Coords, iv, x, y, 0.0); } else if (dimension_model == GAIA_XY_Z_M) { gaiaSetPointXYZM (ln->Coords, iv, x, y, z, 0.0); } else { gaiaSetPoint (ln->Coords, iv, x, y); } } } break; case GEOS_POLYGON: /* exterior ring */ holes = GEOSGetNumInteriorRings (geos_item); geos_ring = GEOSGetExteriorRing (geos_item); cs = GEOSGeom_getCoordSeq (geos_ring); GEOSCoordSeq_getDimensions (cs, &dims); GEOSCoordSeq_getSize (cs, &points); pg = gaiaAddPolygonToGeomColl (gaia, points, holes); rng = pg->Exterior; for (iv = 0; iv < (int) points; iv++) { if (dims == 3) { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); GEOSCoordSeq_getZ (cs, iv, &z); } else { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) { gaiaSetPointXYZ (rng->Coords, iv, x, y, z); } else if (dimension_model == GAIA_XY_M) { gaiaSetPointXYM (rng->Coords, iv, x, y, 0.0); } else if (dimension_model == GAIA_XY_Z_M) { gaiaSetPointXYZM (rng->Coords, iv, x, y, z, 0.0); } else { gaiaSetPoint (rng->Coords, iv, x, y); } } for (ib = 0; ib < holes; ib++) { /* interior rings */ geos_ring = GEOSGetInteriorRingN (geos_item, ib); cs = GEOSGeom_getCoordSeq (geos_ring); GEOSCoordSeq_getDimensions (cs, &dims); GEOSCoordSeq_getSize (cs, &points); rng = gaiaAddInteriorRing (pg, ib, points); for (iv = 0; iv < (int) points; iv++) { if (dims == 3) { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); GEOSCoordSeq_getZ (cs, iv, &z); } else { GEOSCoordSeq_getX (cs, iv, &x); GEOSCoordSeq_getY (cs, iv, &y); z = 0.0; } if (dimension_model == GAIA_XY_Z) { gaiaSetPointXYZ (rng->Coords, iv, x, y, z); } else if (dimension_model == GAIA_XY_M) { gaiaSetPointXYM (rng->Coords, iv, x, y, 0.0); } else if (dimension_model == GAIA_XY_Z_M) { gaiaSetPointXYZM (rng->Coords, iv, x, y, z, 0.0); } else { gaiaSetPoint (rng->Coords, iv, x, y); } } } break; }; } break; }; return gaia; }