static void test_tree_circ_pip2(void)
{
LWGEOM* g;
LWPOLY* p;
LWPOINT* lwpt;
int rv_classic, rv_tree, on_boundary;
POINT2D pt, pt_outside;
GBOX gbox;
CIRC_NODE *c;
g = lwgeom_from_wkt("POLYGON((0 0,0 1,1 1,1 0,0 0))", LW_PARSER_CHECK_NONE);
p = lwgeom_as_lwpoly(g);
pt.x = 0.2;
pt.y = 0.1;
lwgeom_calculate_gbox_geodetic(g, &gbox);
gbox_pt_outside(&gbox, &pt_outside);
c = circ_tree_new(p->rings[0]);
//circ_tree_print(c, 0);
rv_classic = lwpoly_covers_point2d(p, &pt);
rv_tree = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
CU_ASSERT_EQUAL(rv_tree, rv_classic);
circ_tree_free(c);
lwgeom_free(g);
g = lwgeom_from_hexwkb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
p = lwgeom_as_lwpoly(g);
lwpt = (LWPOINT*)lwgeom_from_hexwkb("0101000020E610000057B89C28FEB320C09C8102CB3B2B4A40", LW_PARSER_CHECK_NONE);
lwpoint_getPoint2d_p(lwpt, &pt);
lwgeom_calculate_gbox_geodetic(g, &gbox);
gbox_pt_outside(&gbox, &pt_outside);
//printf("OUTSIDE POINT(%g %g)\n", pt_outside.x, pt_outside.y);
c = circ_tree_new(p->rings[0]);
rv_classic = lwpoly_covers_point2d(p, &pt);
rv_tree = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
CU_ASSERT_EQUAL(rv_tree, rv_classic);
circ_tree_free(c);
lwpoint_free(lwpt);
lwgeom_free(g);
g = lwgeom_from_hexwkb("0103000020E610000001000000CF0100000000000000004EC03943F5FFFF7F56400000000000003E403943F5FFFF7F56400000000000003E401842CEFBFF7F56400000000000003E402F849CF7FF7F56400000000000003E4047C66AF3FF7F56400000000000003E405F0839EFFF7F56400000000000003E40774A07EBFF7F56400000000000003E408F8CD5E6FF7F56400000000000003E40A6CEA3E2FF7F56400000000000003E40D65240DAFF7F56400000000000003E4006D7DCD1FF7F56400000000000003E40355B79C9FF7F56400000000000003E407D21E4BCFF7F56400000000000003E40DC291DACFF7F56400000000000003E403B32569BFF7F56400000000000003E40CABE2B82FF7F56400000000000003E40594B0169FF7F56400000000000003E40309E4143FF7F56400000000000003E401E335019FF7F56400000000000003E403C4CFBE6FE7F56400000000000003E40B96DDFA3FE7F56400000000000003E407E552E54FE7F56400000000000003E40A245B6F3FD7F56400000000000003E403D80457EFD7F56400000000000003E407E8978EBFC7F56400000000000003E407FA31D37FC7F56400000000000003E405510035DFB7F56400000000000003E404A969350FA7F56400000000000003E40BC3D0801F97F56400000000000003E40C3482F6AF77F56400000000000003E40D5011077F57F56400000000000003E406CB3B112F37F56400000000000003E402C2CB81FF07F56400000000000003E40A4F8F884EC7F56400000000000003E40C5AD8218E87F56400000000000003E40C1A6CEA3E27F56400000000000003E40A1BAB9F8DB7F56400000000000003E40401361C3D37F56400000000000003E40639813B4C97F56400000000000003E408D429259BD7F56400000000000003E40B854A52DAE7F56400000000000003E406F9EEA909B7F56400000000000003E403FC6DCB5847F56400000000000003E408FC536A9687F56400000000000003E402975C938467F56400000000000003E403F8D7BF31B7F56400000000000003E40F4311F10E87E56400000000000003E40C1FBAA5CA87E56400000000000003E40D2FF722D5A7E56400000000000003E4009A7052FFA7D56400000000000003E403332C85D847D56400000000000003E40B35F77BAF37C56400000000000003E40253ACB2C427C56400000000000003E40FA7B293C687B56400000000000003E407D3D5FB35C7A56400000000000003E40E3A25A44147956400000000000003E40A0504F1F817756400000000000003E4062855B3E927556400000000000003E40B62BF4C1327356400000000000003E40280D350A497056400000000000003E4061DC0DA2B56C56400000000000003E40B81E85EB516856400000000000003E403237DF88EE6256400000000000003E4041EE224C515C56400000000000003E409EE925C6325456400000000000003E400B2593533B4A56400000000000003E4089CF9D60FF3D56400000000000003E40F04A92E7FA2E56400000000000003E40AC3594DA8B1C56400000000000003E40C9022670EB0556400000000000003E4069A510C825EA55400000000000003E4033DC80CF0FC855400000000000003E40FF907EFB3A9E55400000000000003E404203B16CE66A55400000000000003E40DA39CD02ED2B55400000000000003E4070404B57B0DE54400000000000003E4000000000008054403333333333B33D4000000000008054406666666666663D4000000000008054409999999999193D400000000000805440CCCCCCCCCCCC3C4000000000008054400000000000803C4000000000008054403333333333333C4000000000008054406666666666E63B4000000000008054409999999999993B400000000000805440CCCCCCCCCC4C3B4000000000008054400000000000003B4000000000008054403333333333B33A4000000000008054406666666666663A4000000000008054409999999999193A400000000000805440CCCCCCCCCCCC3940000000000080544000000000008039400000000000805440333333333333394000000000008054406666666666E63840000000000080544099999999999938400000000000805440CCCCCCCCCC4C38400000000000805440000000000000384000000000008054403333333333B3374000000000008054406666666666663740000000000080544099999999991937400000000000805440CDCCCCCCCCCC3640000000000080544000000000008036400000000000805440333333333333364000000000008054406666666666E63540000000000080544099999999999935400000000000805440CDCCCCCCCC4C35400000000000805440000000000000354000000000008054403333333333B3344000000000008054406666666666663440000000000080544099999999991934400000000000805440CDCCCCCCCCCC3340000000000080544000000000008033400000000000805440333333333333334000000000008054406666666666E63240000000000080544099999999999932400000000000805440CDCCCCCCCC4C32400000000000805440000000000000324000000000008054403333333333B3314000000000008054406666666666663140000000000080544099999999991931400000000000805440CDCCCCCCCCCC304000000000008054400000000000803040000000000080544033333333333330400000000000805440CCCCCCCCCCCC2F4000000000008054403333333333332F4000000000008054409999999999992E4000000000008054400000000000002E4000000000008054406666666666662D400000000000805440CCCCCCCCCCCC2C4000000000008054403333333333332C4000000000008054409999999999992B4000000000008054400000000000002B4000000000008054406666666666662A400000000000805440CCCCCCCCCCCC2940000000000080544033333333333329400000000000805440999999999999284000000000008054400000000000002840000000000080544066666666666627400000000000805440CDCCCCCCCCCC2640000000000080544033333333333326400000000000805440999999999999254000000000008054400000000000002540000000000080544066666666666624400000000000805440CDCCCCCCCCCC2340000000000080544033333333333323400000000000805440999999999999224000000000008054400000000000002240000000000080544066666666666621400000000000805440CDCCCCCCCCCC20400000000000805440333333333333204000000000008054403333333333331F4000000000008054400000000000001E400000000000805440CCCCCCCCCCCC1C4000000000008054409999999999991B4000000000008054406666666666661A4000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LW_PARSER_CHECK_NONE);
p = lwgeom_as_lwpoly(g);
lwpt = (LWPOINT*)lwgeom_from_hexwkb("0101000020E610000031B1F9B836A046C03C889D2974124E40", LW_PARSER_CHECK_NONE);
lwpoint_getPoint2d_p(lwpt, &pt);
lwgeom_calculate_gbox_geodetic(g, &gbox);
gbox_pt_outside(&gbox, &pt_outside);
//printf("OUTSIDE POINT(%g %g)\n", pt_outside.x, pt_outside.y);
c = circ_tree_new(p->rings[0]);
rv_classic = lwpoly_covers_point2d(p, &pt);
rv_tree = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
CU_ASSERT_EQUAL(rv_tree, rv_classic);
circ_tree_free(c);
lwpoint_free(lwpt);
lwgeom_free(g);
}
static int
CircTreePIP(const CIRC_NODE* tree1, const GSERIALIZED* g1, const POINT4D* in_point)
{
int tree1_type = gserialized_get_type(g1);
GBOX gbox1;
GEOGRAPHIC_POINT in_gpoint;
POINT3D in_point3d;
POSTGIS_DEBUGF(3, "tree1_type=%d", tree1_type);
/* If the tree'ed argument is a polygon, do the P-i-P using the tree-based P-i-P */
if ( tree1_type == POLYGONTYPE || tree1_type == MULTIPOLYGONTYPE )
{
POSTGIS_DEBUG(3, "tree is a polygon, using tree PiP");
/* Need a gbox to calculate an outside point */
if ( LW_FAILURE == gserialized_get_gbox_p(g1, &gbox1) )
{
LWGEOM* lwgeom1 = lwgeom_from_gserialized(g1);
POSTGIS_DEBUG(3, "unable to read gbox from gserialized, calculating from scratch");
lwgeom_calculate_gbox_geodetic(lwgeom1, &gbox1);
lwgeom_free(lwgeom1);
}
/* Flip the candidate point into geographics */
geographic_point_init(in_point->x, in_point->y, &in_gpoint);
geog2cart(&in_gpoint, &in_point3d);
/* If the candidate isn't in the tree box, it's not in the tree area */
if ( ! gbox_contains_point3d(&gbox1, &in_point3d) )
{
POSTGIS_DEBUG(3, "in_point3d is not inside the tree gbox, CircTreePIP returning FALSE");
return LW_FALSE;
}
/* The candidate point is in the box, so it *might* be inside the tree */
else
{
POINT2D pt2d_outside; /* latlon */
POINT2D pt2d_inside;
pt2d_inside.x = in_point->x;
pt2d_inside.y = in_point->y;
/* Calculate a definitive outside point */
gbox_pt_outside(&gbox1, &pt2d_outside);
POSTGIS_DEBUGF(3, "p2d_inside=POINT(%g %g) p2d_outside=POINT(%g %g)", pt2d_inside.x, pt2d_inside.y, pt2d_outside.x, pt2d_outside.y);
/* Test the candidate point for strict containment */
POSTGIS_DEBUG(3, "calling circ_tree_contains_point for PiP test");
return circ_tree_contains_point(tree1, &pt2d_inside, &pt2d_outside, NULL);
}
}
else
{
POSTGIS_DEBUG(3, "tree1 not polygonal, so CircTreePIP returning FALSE");
return LW_FALSE;
}
}
static void test_tree_circ_pip(void)
{
LWLINE *g;
CIRC_NODE *c;
POINT2D pt, pt_outside;
int rv, on_boundary;
pt.x = 0.0;
pt.y = 0.0;
pt_outside.x = -2.0;
pt_outside.y = 0.0;
/* Point in square */
g = lwgeom_as_lwline(lwgeom_from_wkt("LINESTRING(-1 -1,1 -1,1 1,-1 1,-1 -1)", LW_PARSER_CHECK_NONE));
c = circ_tree_new(g->points);
rv = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
CU_ASSERT_EQUAL(rv, 1);
/* Point on other side of square */
pt.x = 2.0;
pt.y = 0.0;
rv = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
CU_ASSERT_EQUAL(rv, 0);
/* Clean and do new shape */
circ_tree_free(c);
lwline_free(g);
/* Point in square, stab passing through vertex */
pt.x = 0.0;
pt.y = 0.0;
g = lwgeom_as_lwline(lwgeom_from_wkt("LINESTRING(-1 -1,0 -1,1 -1,1 0,1 1,0 1,-1 1,-1 0,-1 -1)", LW_PARSER_CHECK_NONE));
c = circ_tree_new(g->points);
//circ_tree_print(c, 0);
rv = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
CU_ASSERT_EQUAL(rv, 1);
/* Point on other side of square, stab passing through vertex */
pt.x = 2.0;
pt.y = 0.0;
rv = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
CU_ASSERT_EQUAL(rv, 0);
/* Clean and do new shape */
circ_tree_free(c);
lwline_free(g);
/* Point outside "w" thing, stab passing through vertexes and grazing pointy thing */
pt.x = 2.0;
pt.y = 0.0;
g = lwgeom_as_lwline(lwgeom_from_wkt("LINESTRING(-1 -1,0 -1,1 -1,1 0,1 1,0 0,-1 1,-1 0,-1 -1)", LW_PARSER_CHECK_NONE));
c = circ_tree_new(g->points);
//circ_tree_print(c, 0);
rv = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
//printf("rv %d\n", rv);
CU_ASSERT_EQUAL(rv, 0);
/* Point inside "w" thing, stab passing through vertexes and grazing pointy thing */
pt.x = 0.8;
pt.y = 0.0;
rv = circ_tree_contains_point(c, &pt, &pt_outside, &on_boundary);
//printf("rv %d\n", rv);
CU_ASSERT_EQUAL(rv, 1);
/* Clean and do new shape */
circ_tree_free(c);
lwline_free(g);
}
/**
* Walk the tree and count intersections between the stab line and the edges.
* odd => containment, even => no containment.
* KNOWN PROBLEM: Grazings (think of a sharp point, just touching the
* stabline) will be counted for one, which will throw off the count.
*/
int circ_tree_contains_point(const CIRC_NODE* node, const POINT2D* pt, const POINT2D* pt_outside, int* on_boundary)
{
GEOGRAPHIC_POINT closest;
GEOGRAPHIC_EDGE stab_edge, edge;
POINT3D S1, S2, E1, E2;
double d;
int i, c;
/* Construct a stabline edge from our "inside" to our known outside point */
geographic_point_init(pt->x, pt->y, &(stab_edge.start));
geographic_point_init(pt_outside->x, pt_outside->y, &(stab_edge.end));
geog2cart(&(stab_edge.start), &S1);
geog2cart(&(stab_edge.end), &S2);
LWDEBUG(3, "entered");
/*
* If the stabline doesn't cross within the radius of a node, there's no
* way it can cross.
*/
LWDEBUGF(3, "working on node %p, edge_num %d, radius %g, center POINT(%g %g)", node, node->edge_num, node->radius, rad2deg(node->center.lon), rad2deg(node->center.lat));
d = edge_distance_to_point(&stab_edge, &(node->center), &closest);
LWDEBUGF(3, "edge_distance_to_point=%g, node_radius=%g", d, node->radius);
if ( FP_LTEQ(d, node->radius) )
{
LWDEBUGF(3,"entering this branch (%p)", node);
/* Return the crossing number of this leaf */
if ( circ_node_is_leaf(node) )
{
int inter;
LWDEBUGF(3, "leaf node calculation (edge %d)", node->edge_num);
geographic_point_init(node->p1->x, node->p1->y, &(edge.start));
geographic_point_init(node->p2->x, node->p2->y, &(edge.end));
geog2cart(&(edge.start), &E1);
geog2cart(&(edge.end), &E2);
inter = edge_intersects(&S1, &S2, &E1, &E2);
if ( inter & PIR_INTERSECTS )
{
LWDEBUG(3," got stab line edge_intersection with this edge!");
/* To avoid double counting crossings-at-a-vertex, */
/* always ignore crossings at "lower" ends of edges*/
if ( inter & PIR_B_TOUCH_RIGHT || inter & PIR_COLINEAR )
{
LWDEBUG(3," rejecting stab line grazing by left-side edge");
return 0;
}
else
{
LWDEBUG(3," accepting stab line intersection");
return 1;
}
}
}
/* Or, add up the crossing numbers of all children of this node. */
else
{
c = 0;
for ( i = 0; i < node->num_nodes; i++ )
{
LWDEBUG(3,"internal node calculation");
LWDEBUGF(3," calling circ_tree_contains_point on child %d!", i);
c += circ_tree_contains_point(node->nodes[i], pt, pt_outside, on_boundary);
}
return c % 2;
}
}
else
{
LWDEBUGF(3,"skipping this branch (%p)", node);
}
return 0;
}