| 1746 |
return rel_chain; |
return rel_chain; |
| 1747 |
} |
} |
| 1748 |
|
|
| 1749 |
|
/* return all relations a relation is in */ |
| 1750 |
|
relation_chain_t *osm_relation_to_relation(osm_t *osm, relation_t *rel) { |
| 1751 |
|
relation_chain_t *rel_chain = NULL, **cur_rel_chain = &rel_chain; |
| 1752 |
|
|
| 1753 |
|
relation_t *relation = osm->relation; |
| 1754 |
|
while(relation) { |
| 1755 |
|
gboolean is_member = FALSE; |
| 1756 |
|
|
| 1757 |
|
member_t *member = relation->member; |
| 1758 |
|
while(member) { |
| 1759 |
|
switch(member->object.type) { |
| 1760 |
|
case RELATION: { |
| 1761 |
|
/* relations can be check directly */ |
| 1762 |
|
if(member->object.relation == rel) |
| 1763 |
|
is_member = TRUE; |
| 1764 |
|
} break; |
| 1765 |
|
|
| 1766 |
|
default: |
| 1767 |
|
break; |
| 1768 |
|
} |
| 1769 |
|
member = member->next; |
| 1770 |
|
} |
| 1771 |
|
|
| 1772 |
|
/* way is a member of this relation, so move it to the member chain */ |
| 1773 |
|
if(is_member) { |
| 1774 |
|
*cur_rel_chain = g_new0(relation_chain_t, 1); |
| 1775 |
|
(*cur_rel_chain)->relation = relation; |
| 1776 |
|
cur_rel_chain = &((*cur_rel_chain)->next); |
| 1777 |
|
} |
| 1778 |
|
|
| 1779 |
|
relation = relation->next; |
| 1780 |
|
} |
| 1781 |
|
|
| 1782 |
|
return rel_chain; |
| 1783 |
|
} |
| 1784 |
|
|
| 1785 |
|
/* return all relations an object is in */ |
| 1786 |
|
relation_chain_t *osm_object_to_relation(osm_t *osm, object_t *object) { |
| 1787 |
|
relation_chain_t *rel_chain = NULL; |
| 1788 |
|
|
| 1789 |
|
switch(object->type) { |
| 1790 |
|
case NODE: |
| 1791 |
|
rel_chain = osm_node_to_relation(osm, object->node); |
| 1792 |
|
break; |
| 1793 |
|
|
| 1794 |
|
case WAY: |
| 1795 |
|
rel_chain = osm_way_to_relation(osm, object->way); |
| 1796 |
|
break; |
| 1797 |
|
|
| 1798 |
|
case RELATION: |
| 1799 |
|
rel_chain = osm_relation_to_relation(osm, object->relation); |
| 1800 |
|
break; |
| 1801 |
|
|
| 1802 |
|
default: |
| 1803 |
|
break; |
| 1804 |
|
} |
| 1805 |
|
|
| 1806 |
|
return rel_chain; |
| 1807 |
|
} |
| 1808 |
|
|
| 1809 |
|
void osm_relation_chain_free(relation_chain_t *rchain) { |
| 1810 |
|
while(rchain) { |
| 1811 |
|
relation_chain_t *next = rchain->next; |
| 1812 |
|
g_free(rchain); |
| 1813 |
|
rchain = next; |
| 1814 |
|
} |
| 1815 |
|
} |
| 1816 |
|
|
| 1817 |
/* return all ways a node is in */ |
/* return all ways a node is in */ |
| 1818 |
way_chain_t *osm_node_to_way(osm_t *osm, node_t *node) { |
way_chain_t *osm_node_to_way(osm_t *osm, node_t *node) { |
| 1819 |
way_chain_t *chain = NULL, **cur_chain = &chain; |
way_chain_t *chain = NULL, **cur_chain = &chain; |
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