Changeset 13990 in osm for applications/editors/josm/plugins/terracer/src

Timestamp:

2009-03-06T19:55:38+01:00 (16 years ago)

Author:

zere

Message:

New version of Terracer plugin. Supports non-quadrilateral terraces and also fills out Karlsruhe schema tags automatically.

Location:

applications/editors/josm/plugins/terracer/src/terracer

Files:

• ReverseTerraceAction.java (added)
• TerracerAction.java (modified) (7 diffs)
• TerracerPlugin.java (modified) (1 diff)

applications/editors/josm/plugins/terracer/src/terracer/TerracerAction.java

@@ -9 +9 @@
 
 import static org.openstreetmap.josm.tools.I18n.tr;
-
+import static org.openstreetmap.josm.tools.I18n.trn;
+
+import java.awt.BorderLayout;
+import java.awt.Choice;
+import java.awt.Component;
+import java.awt.GridBagLayout;
 import java.awt.event.ActionEvent;
+import java.awt.event.ItemEvent;
+import java.awt.event.ItemListener;
 import java.awt.event.KeyEvent;
+import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.Collection;
+import java.util.Collections;
+import java.util.HashMap;
 import java.util.LinkedList;
-
+import java.util.List;
+import java.util.Map;
+import java.util.TreeMap;
+import java.util.TreeSet;
+
+import javax.swing.JComponent;
+import javax.swing.JFormattedTextField;
+import javax.swing.JLabel;
 import javax.swing.JOptionPane;
+import javax.swing.JPanel;
+import javax.swing.JSpinner;
+import javax.swing.JTextField;
+import javax.swing.SpinnerNumberModel;
+import javax.swing.SpringLayout;
+import javax.swing.event.ChangeEvent;
+import javax.swing.event.ChangeListener;
 
 import org.openstreetmap.josm.Main;
@@ -25 +50 @@
 import org.openstreetmap.josm.data.osm.Node;
 import org.openstreetmap.josm.data.osm.OsmPrimitive;
+import org.openstreetmap.josm.data.osm.Relation;
+import org.openstreetmap.josm.data.osm.RelationMember;
 import org.openstreetmap.josm.data.osm.Way;
+import org.openstreetmap.josm.gui.tagging.TaggingPreset.Item;
+import org.openstreetmap.josm.tools.AutoCompleteComboBox;
+import org.openstreetmap.josm.tools.GBC;
+import org.openstreetmap.josm.tools.Pair;
 import org.openstreetmap.josm.tools.Shortcut;
 
@@ -40 +71 @@
 public final class TerracerAction extends JosmAction {
 
+        // smsms1 asked for the last value to be remembered to make it easier to do
+        // repeated terraces. this is the easiest, but not necessarily nicest, way.
+        private static String lastSelectedValue = "";
+
         public TerracerAction() {
                 super(tr("Terrace a building"), 
@@ -65 +100 @@
                                 Way way = (Way)prim;
 
-                                if ((way.nodes.size() == 5) &&
+                                if ((way.nodes.size() >= 5) &&
                                                 way.isClosed()) {
                                         // first ask the user how many buildings to terrace into
-                                        String answer = 
-                                                JOptionPane.showInputDialog(
-                                                                tr("How many buildings are in the terrace?"));
-                                        
-                                        // if the answer was null then the user clicked "Cancel"
-                                        if (answer != null) {
-                                                int nb = Integer.parseInt(answer);
-                                                terraceBuilding(way, nb);
+                                        HouseNumberDialog dialog = new HouseNumberDialog();
+                                        final JOptionPane optionPane = new JOptionPane(dialog, JOptionPane.PLAIN_MESSAGE, JOptionPane.OK_CANCEL_OPTION);
+
+                                        String title = trn("Change {0} object", "Change {0} objects", sel.size(), sel.size());
+                                        if(sel.size() == 0)
+                                                title = tr("Nothing selected!");
+
+                                        optionPane.createDialog(Main.parent, title).setVisible(true);
+                                        Object answerObj = optionPane.getValue();
+                                        if (answerObj != null && 
+                                                        answerObj != JOptionPane.UNINITIALIZED_VALUE &&
+                                                        (answerObj instanceof Integer && 
+                                                                        (Integer)answerObj == JOptionPane.OK_OPTION)) {
+
+                                                // call out to the method which does the actual
+                                                // terracing.
+                                                terraceBuilding(way, 
+                                                                dialog.numberFrom(), 
+                                                                dialog.numberTo(),
+                                                                dialog.stepSize(),
+                                                                dialog.streetName());
+
                                         }
                                 } else {
@@ -89 +138 @@
                 if (badSelect) {
                         JOptionPane.showMessageDialog(Main.parent, 
-                                        tr("Select a single, closed way of four nodes."));
+                                        tr("Select a single, closed way of at least four nodes."));
                 }
         }
@@ -102 +151 @@
          * 
          * @param w The closed, quadrilateral way to terrace.
-         * @param nb The number of buildings to terrace into.
-         */
-        private void terraceBuilding(Way w, int nb) {
+         */
+        private void terraceBuilding(Way w, int from, int to, int step, String streetName) {
+                final int nb = 1 + (to - from) / step;
 
                 // now find which is the longest side connecting the first node
-                Node[] nodes = w.nodes.toArray(new Node[] {});
-                double side1 = nodes[0].coor.greatCircleDistance(nodes[1].coor);
-                double side2 = nodes[0].coor.greatCircleDistance(nodes[3].coor);
-                
+                Pair<Way,Way> interp = findFrontAndBack(w);
+
+                final double frontLength = wayLength(interp.a);
+                final double backLength = wayLength(interp.b);
+
                 // new nodes array to hold all intermediate nodes
                 Node[][] new_nodes = new Node[2][nb + 1];
-                
-                if (side1 > side2) {
-                        new_nodes[0][0] = nodes[0];
-                        new_nodes[0][nb] = nodes[1];
-                        new_nodes[1][0] = nodes[3];
-                        new_nodes[1][nb] = nodes[2];
-                } else {
-                        new_nodes[0][0] = nodes[0];
-                        new_nodes[0][nb] = nodes[3];
-                        new_nodes[1][0] = nodes[1];
-                        new_nodes[1][nb] = nodes[2];
-                }
-                        
-        Collection<Command> commands = new LinkedList<Command>();
-        Collection<Way> ways = new LinkedList<Way>();
-
-        // create intermediate nodes by interpolating. 
-        for (int i = 1; i < nb; ++i) {
-                        new_nodes[0][i] = interpolateNode(new_nodes[0][0], new_nodes[0][nb],
-                                        (double)(i)/(double)(nb));
-                        new_nodes[1][i] = interpolateNode(new_nodes[1][0], new_nodes[1][nb],
-                                        (double)(i)/(double)(nb));
+
+                Collection<Command> commands = new LinkedList<Command>();
+                Collection<Way> ways = new LinkedList<Way>();
+
+                // create intermediate nodes by interpolating. 
+                for (int i = 0; i <= nb; ++i) {
+                        new_nodes[0][i] = interpolateAlong(interp.a, frontLength * (double)(i) / (double)(nb));
+                        new_nodes[1][i] = interpolateAlong(interp.b, backLength * (double)(i) / (double)(nb));
                         commands.add(new AddCommand(new_nodes[0][i]));
                         commands.add(new AddCommand(new_nodes[1][i]));
                 }
 
-        // assemble new quadrilateral, closed ways
-        for (int i = 0; i < nb; ++i) {
-                Way terr = new Way();
-                // Using Way.nodes.add rather than Way.addNode because the latter doesn't
-                // exist in older versions of JOSM.
-                terr.nodes.add(new_nodes[0][i]);
-                terr.nodes.add(new_nodes[0][i+1]);
-                terr.nodes.add(new_nodes[1][i+1]);
-                terr.nodes.add(new_nodes[1][i]);
-                terr.nodes.add(new_nodes[0][i]);
-                ways.add(terr);
-                commands.add(new AddCommand(terr));
-        }
-        
-        Main.main.undoRedo.add(new SequenceCommand(tr("Terrace"), commands));
-        Main.ds.setSelected(ways);
+                // create a new relation for addressing
+                Relation relatedStreet = new Relation();
+                relatedStreet.put("type", "relatedStreet");
+                if (streetName != null) {
+                        relatedStreet.put("name", streetName);
+                }
+                // note that we don't actually add the street member to the relation, as
+                // the name isn't unambiguous and it could cause confusion if the editor were
+                // to automatically select one which wasn't the one the user intended.
+
+                // assemble new quadrilateral, closed ways
+                for (int i = 0; i < nb; ++i) {
+                        Way terr = new Way();
+                        // Using Way.nodes.add rather than Way.addNode because the latter doesn't
+                        // exist in older versions of JOSM.
+                        terr.nodes.add(new_nodes[0][i]);
+                        terr.nodes.add(new_nodes[0][i+1]);
+                        terr.nodes.add(new_nodes[1][i+1]);
+                        terr.nodes.add(new_nodes[1][i]);
+                        terr.nodes.add(new_nodes[0][i]);
+                        terr.put("addr:housenumber", "" + (from + i * step));
+                        terr.put("building", "yes");
+                        if (streetName != null) {
+                                terr.put("addr:street", streetName);
+                        }
+                        relatedStreet.members.add(new RelationMember("house", terr));
+                        ways.add(terr);
+                        commands.add(new AddCommand(terr));
+                }
+
+                commands.add(new AddCommand(relatedStreet));
+
+                Main.main.undoRedo.add(new SequenceCommand(tr("Terrace"), commands));
+                Main.ds.setSelected(ways);
+        }
+
+        /**
+         * Creates a node at a certain distance along a way, as calculated by the
+         * great circle distance.
+         * 
+         * Note that this really isn't an efficient way to do this and leads to 
+         * O(N^2) running time for the main algorithm, but its simple and easy
+         * to understand, and probably won't matter for reasonable-sized ways.
+         * 
+         * @param w The way to interpolate.
+         * @param l The length at which to place the node.
+         * @return A node at a distance l along w from the first point.
+         */
+        private Node interpolateAlong(Way w, double l) {
+                Node n = null;
+                for (Pair<Node,Node> p : w.getNodePairs(false)) {
+                        final double seg_length = p.a.coor.greatCircleDistance(p.b.coor);
+                        if (l <= seg_length) {
+                                n = interpolateNode(p.a, p.b, l / seg_length);
+                                break;
+                        } else {
+                                l -= seg_length;
+                        }
+                }
+                if (n == null) {
+                        // sometimes there is a small overshoot due to numerical roundoff, so we just
+                        // set these cases to be equal to the last node. its not pretty, but it works ;-)
+                        n = w.nodes.get(w.nodes.size() - 1);
+                }
+                return n;
+        }
+
+        /**
+         * Calculates the great circle length of a way by summing the great circle
+         * distance of each pair of nodes.
+         * 
+         * @param w The way to calculate length of.
+         * @return The length of the way.
+         */
+        private double wayLength(Way w) {
+                double length = 0.0;
+                for (Pair<Node,Node> p : w.getNodePairs(false)) {
+                        length += p.a.coor.greatCircleDistance(p.b.coor);
+                }
+                return length;
+        }
+
+        /**
+         * Given a way, try and find a definite front and back by looking at the 
+         * segments to find the "sides". Sides are assumed to be single segments
+         * which cannot be contiguous.
+         * 
+         * @param w The way to analyse.
+         * @return A pair of ways (front, back) pointing in the same directions.
+         */
+        private Pair<Way, Way> findFrontAndBack(Way w) {
+                // calculate the "side-ness" score for each segment of the way
+                double[] sideness = calculateSideness(w);
+
+                // find the largest two sidenesses which are not contiguous
+                int[] indexes = sortedIndexes(sideness);
+                int side1 = indexes[0];
+                int side2 = indexes[1];
+                // if side2 is contiguous with side1 then look further down the
+                // list. we know there are at least 4 sides, as anything smaller
+                // than a quadrilateral would have been rejected at an earlier
+                // stage.
+                if (Math.abs(side1 - side2) < 2) {
+                        side2 = indexes[2];
+                }
+                if (Math.abs(side1 - side2) < 2) {
+                        side2 = indexes[3];
+                }
+
+                // swap side1 and side2 into sorted order.
+                if (side1 > side2) {
+                        // i can't believe i have to write swap() myself - surely java standard
+                        // library has this somewhere??!!?ONE!
+                        int tmp = side2;
+                        side2 = side1;
+                        side1 = tmp;
+                }
+
+                Way front = new Way();
+                Way back = new Way();
+                for (int i = side2 + 1; i < w.nodes.size() - 1; ++i) {
+                        front.nodes.add(w.nodes.get(i));
+                }
+                for (int i = 0; i <= side1; ++i) {
+                        front.nodes.add(w.nodes.get(i));
+                }
+                // add the back in reverse order so that the front and back ways point
+                // in the same direction.
+                for (int i = side2; i > side1; --i) {
+                        back.nodes.add(w.nodes.get(i));
+                }
+
+                return new Pair<Way, Way>(front, back);
+        }
+
+        /**
+         * Given an array of doubles (but this could made generic very easily) sort
+         * into order and return the array of indexes such that, for a returned array
+         * x, a[x[i]] is sorted for ascending index i.
+         * 
+         * This isn't efficient at all, but should be fine for the small arrays we're
+         * expecting. If this gets slow - replace it with some more efficient algorithm.
+         * 
+         * @param a The array to sort.
+         * @return An array of indexes, the same size as the input, such that a[x[i]] 
+         * is in sorted order.
+         */
+        private int[] sortedIndexes(final double[] a) {
+                class SortWithIndex implements Comparable<SortWithIndex> {
+                        public double x;
+                        public int i;
+                        public SortWithIndex(double a, int b) {
+                                x = a; i = b;
+                        }
+                        public int compareTo(SortWithIndex o) {
+                                return Double.compare(x, o.x);
+                        };
+                }
+
+                final int length = a.length;
+                ArrayList<SortWithIndex> sortable = new ArrayList<SortWithIndex>(length);
+                for (int i = 0; i < length; ++i) {
+                        sortable.add(new SortWithIndex(a[i], i));
+                }
+                Collections.sort(sortable);
+
+                int[] indexes = new int[length];
+                for (int i = 0; i < length; ++i) {
+                        indexes[i] = sortable.get(i).i;
+                }
+
+                return indexes;
+        }
+
+        /**
+         * Calculate "sideness" metric for each segment in a way.
+         */
+        private double[] calculateSideness(Way w) {
+                final int length = w.nodes.size() - 1;
+                double[] sideness = new double[length];
+
+                sideness[0] = calculateSideness(
+                                w.nodes.get(length - 1), w.nodes.get(0),
+                                w.nodes.get(1), w.nodes.get(2));
+                for (int i = 1; i < length - 1; ++i) {
+                        sideness[i] = calculateSideness(
+                                        w.nodes.get(i-1), w.nodes.get(i),
+                                        w.nodes.get(i+1), w.nodes.get(i+2));
+                }
+                sideness[length-1] = calculateSideness(
+                                w.nodes.get(length - 2), w.nodes.get(length - 1), 
+                                w.nodes.get(length), w.nodes.get(1));
+
+                return sideness;
+        }
+
+        /**
+         * Calculate sideness of a single segment given the nodes which make up that
+         * segment and its previous and next segments in order. Sideness is calculated
+         * for the segment b-c.
+         */
+        private double calculateSideness(Node a, Node b, Node c, Node d) {
+                final double ndx = b.coor.getX() - a.coor.getX();
+                final double pdx = d.coor.getX() - c.coor.getX();
+                final double ndy = b.coor.getY() - a.coor.getY();
+                final double pdy = d.coor.getY() - c.coor.getY();
+
+                return (ndx * pdx + ndy * pdy) / 
+                Math.sqrt((ndx * ndx + ndy * ndy) * (pdx * pdx + pdy * pdy));
+        }
+
+        /**
+         * Dialog box to allow users to input housenumbers in a nice way.
+         */
+        class HouseNumberDialog extends JPanel {
+                private SpinnerNumberModel lo, hi;
+                private JSpinner clo, chi;
+                private Choice step;
+                private AutoCompleteComboBox street;
+
+                public HouseNumberDialog() {
+                        super(new GridBagLayout());
+                        lo = new SpinnerNumberModel(1, 1, 1, 1);
+                        hi = new SpinnerNumberModel(1, 1, null, 1);
+                        step = new Choice();
+                        step.add(tr("All"));
+                        step.add(tr("Even"));
+                        step.add(tr("Odd"));
+                        clo = new JSpinner(lo);
+                        chi = new JSpinner(hi);
+
+                        lo.addChangeListener(new ChangeListener() { 
+                                public void stateChanged(ChangeEvent e) {
+                                        hi.setMinimum((Integer)lo.getNumber());
+                                }
+                        });
+                        hi.addChangeListener(new ChangeListener() { 
+                                public void stateChanged(ChangeEvent e) {
+                                        lo.setMaximum((Integer)hi.getNumber());
+                                }
+                        });
+                        step.addItemListener(new ItemListener() {
+                                public void itemStateChanged(ItemEvent e) {
+                                        if (step.getSelectedItem() == tr("All")) {
+                                                hi.setStepSize(1);
+                                                lo.setStepSize(1);
+                                        } else {
+                                                int odd_or_even = 0;
+                                                int min = 0;
+
+                                                if (step.getSelectedItem() == tr("Even")) {
+                                                        odd_or_even = 0;
+                                                        min = 2;
+                                                } else {
+                                                        odd_or_even = 1;
+                                                        min = 1;
+                                                }
+
+                                                if ((lo.getNumber().intValue() & 1) != odd_or_even) {
+                                                        int nextval = lo.getNumber().intValue() - 1;
+                                                        lo.setValue((nextval > min) ? nextval : min);
+                                                }
+                                                if ((hi.getNumber().intValue() & 1) != odd_or_even) {
+                                                        int nextval = hi.getNumber().intValue() - 1;
+                                                        hi.setValue((nextval > min) ? nextval : min);
+                                                }
+                                                lo.setMinimum(min);
+                                                hi.setStepSize(2);
+                                                lo.setStepSize(2);
+                                        }
+                                }
+                        });
+
+                        final TreeSet<String> names = createAutoCompletionInfo();
+
+                        street = new AutoCompleteComboBox();
+                        street.setPossibleItems(names);
+                        street.setEditable(true);
+                        street.setSelectedItem(null);
+
+                        JFormattedTextField x;
+                        x = ((JSpinner.DefaultEditor)clo.getEditor()).getTextField();
+                        x.setColumns(5);
+                        x = ((JSpinner.DefaultEditor)chi.getEditor()).getTextField();
+                        x.setColumns(5);
+                        addLabelled("From number: ", clo);
+                        addLabelled("To number: ",   chi);
+                        addLabelled("Interpolation: ", step);
+                        addLabelled("Street name (Optional): ", street);
+                }
+
+                private void addLabelled(String str, Component c) {
+                        JLabel label = new JLabel(str);
+                        add(label, GBC.std());
+                        label.setLabelFor(c);
+                        add(c, GBC.eol());
+                }
+
+                public int numberFrom() {
+                        return lo.getNumber().intValue();
+                }
+
+                public int numberTo() {
+                        return hi.getNumber().intValue();
+                }
+
+                public int stepSize() {
+                        return (step.getSelectedItem() == tr("All")) ? 1 : 2;
+                }
+
+                public String streetName() {
+                        Object selected = street.getSelectedItem();
+                        if (selected == null) {
+                                return null;
+                        } else {
+                                String name = selected.toString();
+                                if (name.isEmpty()) {
+                                        return null;
+                                } else {
+                                        return name;
+                                }
+                        }
+                }
+        }
+
+        /**
+         * Generates a list of all visible names of highways in order to do 
+         * autocompletion on the road name.
+         */
+        private TreeSet<String> createAutoCompletionInfo() {
+                final TreeSet<String> names = new TreeSet<String>();
+                for (OsmPrimitive osm : Main.ds.allNonDeletedPrimitives()) {
+                        if (osm.keys != null &&
+                                        osm.keys.containsKey("highway") &&
+                                        osm.keys.containsKey("name")) {
+                                names.add(osm.keys.get("name"));
+                        }
+                }
+                return names;
         }
 
@@ -167 +526 @@
          */
         private Node interpolateNode(Node a, Node b, double f) {
-        // this isn't quite right - we should probably be interpolating
+                Node n = new Node(interpolateLatLon(a, b, f));
+                return n;
+        }
+
+        /**
+         * Calculates the interpolated position between the argument nodes. Interpolates 
+         * linearly in Lat/Lon coordinates.
+         * 
+         * @param a First node, at which f=0.
+         * @param b Last node, at which f=1.
+         * @param f Fractional position between first and last nodes.
+         * @return The interpolated position.
+         */
+        private LatLon interpolateLatLon(Node a, Node b, double f) {
+                // this isn't quite right - we should probably be interpolating
                 // screen coordinates rather than lat/lon, but it doesn't seem to
                 // make a great deal of difference at the scale of most terraces.
-                Node n = new Node(new LatLon(
-                                a.coor.lat() * (1.0 - f) + b.coor.lat() * f,
-                                a.coor.lon() * (1.0 - f) + b.coor.lon() * f
-                                ));
-                return n;
+                return new LatLon(a.coor.lat() * (1.0 - f) + b.coor.lat() * f,
+                                a.coor.lon() * (1.0 - f) + b.coor.lon() * f);
         }
 }

applications/editors/josm/plugins/terracer/src/terracer/TerracerPlugin.java

@@ -20 +20 @@
         public TerracerPlugin() {
                 MainMenu.add(Main.main.menu.toolsMenu, new TerracerAction());
+                MainMenu.add(Main.main.menu.toolsMenu, new ReverseTerraceAction());
         }
 }