Changes between Version 4 and Version 5 of Help/Plugin/Scripting/Python

Timestamp:

Sep 13, 2011 2:34:57 AM (20 months ago)

Author:

Polyglot

Comment:

another script which will validate an rcn route relation

Help/Plugin/Scripting/Python

@@ -199 +199 @@
                 print dir(DownloadRelationMemberTask)
                 DownloadRelationMemberTask.run(DownloadRelationMemberTask(relation, relation.getIncompleteMembers(), mv.editLayer ))
-}}}
+
+}}}
+
+
+Validate an rcn route relation:
+
+
+{{{
+
+#!/bin/jython
+'''
+- Validation of a rcn route relation
+
+This code is released under the GNU General
+Public License v2 or later.
+
+The GPL v3 is accessible here:
+http://www.gnu.org/licenses/gpl.html
+
+The GPL v2 is accessible here:
+http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
+
+It comes with no warranty whatsoever.
+
+This code illustrates how to use Jython to:
+* loop over all members of a route relation
+* find out whether member is node, way or relation
+* add/change properties of a relation
+* remove properties of a relation
+* add members to a relation
+* remove members from a relation
+* sort all members backwards
+
+* How to set an element selected
+
+'''
+from javax.swing import JOptionPane
+from org.openstreetmap.josm import Main
+import org.openstreetmap.josm.data.osm.Node as Node
+import org.openstreetmap.josm.data.osm.Way as Way
+import org.openstreetmap.josm.data.osm.Relation as Relation
+import org.openstreetmap.josm.data.osm.TagCollection as TagCollection
+import org.openstreetmap.josm.data.osm.DataSet as DataSet
+import org.openstreetmap.josm.data.osm.RelationMember as RelationMember
+
+def getMapView():
+    if Main.main and Main.main.map:
+        return Main.main.map.mapView
+    else:
+        return None
+
+mv = getMapView()
+if mv and mv.editLayer and mv.editLayer.data:
+    selectedRelations = mv.editLayer.data.getSelectedRelations()
+
+    if not(selectedRelations):
+        JOptionPane.showMessageDialog(Main.parent, "Please select a route relation")
+    else:
+        print
+        for route in selectedRelations:
+            Main.main.getCurrentDataSet().setSelected(route.getMember(0).getWay())
+            name = route.get('name')
+            if name and name == route.get('note'):
+                print 'removing name when it is the same as note'
+                route.remove('name')
+            rcn_refs=[]
+            memberslist = []
+            continuous = True
+            for member in route.getMembers():
+                if member.isWay():
+                    memberslist.append(member)
+                    way = member.getWay()
+                    #JOptionPane.showMessageDialog(Main.parent, 'way is selected')
+                    endnodes = [way.getNode(0), way.getNode(way.nodesCount-1)]
+                    for endnode in endnodes:
+                        rcn_ref = endnode.get('rcn_ref')
+                        if rcn_ref:
+                            rcn_refs.append(int(rcn_ref))
+            print rcn_refs
+            if len(rcn_refs) > 1:
+                if rcn_refs[0] > rcn_refs[1]:
+                    rcn_refs.sort()
+                    print 'flipping members order'
+                    for member in reversed(memberslist):
+                        route.addMember( route.getMembersCount(), member)
+                        route.removeMember (0)
+                route.put('note', str(rcn_refs[0]).zfill(2) + '-' + str(rcn_refs[1]).zfill(2))
+            else:
+                print 'less than 2 end nodes with rcn_ref found'
+}}}
+
+