public static Route create(List<Way> ws, Node end) {
final List<Segment> segments = new ArrayList<Segment>(ws.size());
for (Way w : ws) {
if (!w.isFirstLastNode(end)) {
throw new IllegalArgumentException("Ways must be ordered.");
}
final Node start = Utils.getOppositeEnd(w, end);
segments.add(0, new Segment(start, w, end));
end = start;
}
return new Route(segments);
}
/**
* Determines if ways can be joined into a polygon.
*
* @param ways The ways collection to check
* @return true if all ways can be joined into a polygon
*/
protected static boolean checkWaysArePolygon(Collection<Way> ways) {
// For each way, nodes strictly between first and last should't be reference by an other way
for (Way way : ways) {
for (Node node : way.getNodes()) {
if (way.isFirstLastNode(node)) continue;
for (Way wayOther : ways) {
if (way == wayOther) continue;
if (node.getReferrers().contains(wayOther)) return false;
}
}
}
// Test if ways can be joined
Way currentWay = null;
Node startNode = null, endNode = null;
int used = 0;
while (true) {
Way nextWay = null;
for (Way w : ways) {
if (w.isClosed()) return ways.size() == 1;
if (w == currentWay) continue;
if (currentWay == null) {
nextWay = w;
startNode = w.firstNode();
endNode = w.lastNode();
break;
}
if (w.firstNode() == endNode) {
nextWay = w;
endNode = w.lastNode();
break;
}
if (w.lastNode() == endNode) {
nextWay = w;
endNode = w.firstNode();
break;
}
}
if (nextWay == null) return false;
used += 1;
currentWay = nextWay;
if (endNode == startNode) return used == ways.size();
}
}
static SplitWayResult doSplitWay(
OsmDataLayer layer,
Way way,
Way wayToKeep,
List<Way> newWays,
List<OsmPrimitive> newSelection) {
Collection<Command> commandList = new ArrayList<>(newWays.size());
Collection<String> nowarnroles =
Main.pref.getCollection(
"way.split.roles.nowarn",
Arrays.asList(
"outer", "inner", "forward", "backward", "north", "south", "east", "west"));
// Change the original way
final Way changedWay = new Way(way);
changedWay.setNodes(wayToKeep.getNodes());
commandList.add(new ChangeCommand(way, changedWay));
if (!newSelection.contains(way)) {
newSelection.add(way);
}
newWays.remove(wayToKeep);
for (Way wayToAdd : newWays) {
commandList.add(new AddCommand(layer, wayToAdd));
newSelection.add(wayToAdd);
}
boolean warnmerole = false;
boolean warnme = false;
// now copy all relations to new way also
for (Relation r : OsmPrimitive.getFilteredList(way.getReferrers(), Relation.class)) {
if (!r.isUsable()) {
continue;
}
Relation c = null;
String type = r.get("type");
if (type == null) {
type = "";
}
int i_c = 0, i_r = 0;
List<RelationMember> relationMembers = r.getMembers();
for (RelationMember rm : relationMembers) {
if (rm.isWay() && rm.getMember() == way) {
boolean insert = true;
if ("restriction".equals(type)) {
/* this code assumes the restriction is correct. No real error checking done */
String role = rm.getRole();
if ("from".equals(role) || "to".equals(role)) {
OsmPrimitive via = null;
for (RelationMember rmv : r.getMembers()) {
if ("via".equals(rmv.getRole())) {
via = rmv.getMember();
}
}
List<Node> nodes = new ArrayList<>();
if (via != null) {
if (via instanceof Node) {
nodes.add((Node) via);
} else if (via instanceof Way) {
nodes.add(((Way) via).lastNode());
nodes.add(((Way) via).firstNode());
}
}
Way res = null;
for (Node n : nodes) {
if (changedWay.isFirstLastNode(n)) {
res = way;
}
}
if (res == null) {
for (Way wayToAdd : newWays) {
for (Node n : nodes) {
if (wayToAdd.isFirstLastNode(n)) {
res = wayToAdd;
}
}
}
if (res != null) {
if (c == null) {
c = new Relation(r);
}
c.addMember(new RelationMember(role, res));
c.removeMembersFor(way);
insert = false;
}
} else {
insert = false;
}
} else if (!"via".equals(role)) {
warnme = true;
}
} else if (!("route".equals(type)) && !("multipolygon".equals(type))) {
warnme = true;
}
if (c == null) {
c = new Relation(r);
}
if (insert) {
if (rm.hasRole() && !nowarnroles.contains(rm.getRole())) {
warnmerole = true;
}
Boolean backwards = null;
int k = 1;
while (i_r - k >= 0 || i_r + k < relationMembers.size()) {
if ((i_r - k >= 0) && relationMembers.get(i_r - k).isWay()) {
Way w = relationMembers.get(i_r - k).getWay();
if ((w.lastNode() == way.firstNode()) || w.firstNode() == way.firstNode()) {
backwards = Boolean.FALSE;
} else if ((w.firstNode() == way.lastNode()) || w.lastNode() == way.lastNode()) {
backwards = Boolean.TRUE;
}
break;
}
if ((i_r + k < relationMembers.size()) && relationMembers.get(i_r + k).isWay()) {
Way w = relationMembers.get(i_r + k).getWay();
if ((w.lastNode() == way.firstNode()) || w.firstNode() == way.firstNode()) {
backwards = Boolean.TRUE;
} else if ((w.firstNode() == way.lastNode()) || w.lastNode() == way.lastNode()) {
backwards = Boolean.FALSE;
}
break;
}
k++;
}
int j = i_c;
for (Way wayToAdd : newWays) {
RelationMember em = new RelationMember(rm.getRole(), wayToAdd);
j++;
if ((backwards != null) && backwards) {
c.addMember(i_c, em);
} else {
c.addMember(j, em);
}
}
i_c = j;
}
}
i_c++;
i_r++;
}
if (c != null) {
commandList.add(new ChangeCommand(layer, r, c));
}
}
if (warnmerole) {
new Notification(
tr(
"A role based relation membership was copied to all new ways.<br>You should verify this and correct it when necessary."))
.setIcon(JOptionPane.WARNING_MESSAGE)
.show();
} else if (warnme) {
new Notification(
tr(
"A relation membership was copied to all new ways.<br>You should verify this and correct it when necessary."))
.setIcon(JOptionPane.WARNING_MESSAGE)
.show();
}
return new SplitWayResult(
new SequenceCommand(
/* for correct i18n of plural forms - see #9110 */
trn(
"Split way {0} into {1} part",
"Split way {0} into {1} parts",
newWays.size(),
way.getDisplayName(DefaultNameFormatter.getInstance()),
newWays.size()),
commandList),
newSelection,
way,
newWays);
}