read osm format longitude and latitude bounds, separate ways and buildings

- read longitude and lattude boundaries
- separate ways ( open ways ) from buildings ( closed )
- save as .imc and .drawing ( raw format ) [ since .imc seems buggy )
- read uncompressed drawing format

java/org/artisanlogiciel/games/maze/gui/Display.java

@@ -397,6 +397,26 @@ implements StatusListener
 
             loadMenu.add(loadImcButton);
 
+            Action loadDrawingAction = new AbstractAction() {
+                public void actionPerformed(ActionEvent evt) {
+                    //
+                    addStatus("load Drawing");
+
+                    String filename = loadName.getText();
+
+                    if ((filename.length() > 0)) {
+                        setMazeName(filename);
+                        loadDrawing(false);
+                        refresh();
+                    }
+
+                }
+            };
+            JButton loadDrawingButton = new JButton(labels.getString("load" ) + " Drawing");
+            loadDrawingButton.addActionListener(loadDrawingAction);
+
+            loadMenu.add(loadDrawingButton);
+
             Action loadOsmAction = new AbstractAction() {
                 public void actionPerformed(ActionEvent evt) {
                     //
@@ -701,9 +721,9 @@ implements StatusListener
                     FileInputStream inputStream = null;
                     try {
                         // TODO really use InputStream and not pathname
-                        OsmToDrawing converter = new OsmToDrawing(43.6399000, 7.0058300, 10000,10000);
                         OsmReader reader = new OsmReader(infile.getCanonicalPath());
                         reader.read();
+                        OsmToDrawing converter = new OsmToDrawing(reader, 25000,25000);
                         Drawing drawing = converter.getDrawing(reader.getWays());
                         statusEnable = false;
                         maze.addDrawing(drawing,add);
@@ -760,6 +780,40 @@ implements StatusListener
         }
     }
 
+    private void loadDrawing(boolean add) {
+        if ( maze != null ) {
+            new Thread() {
+                @Override
+                public void run() {
+                    File infile = new File(params.getSaveDir(), params.getName() + ".drawing");
+                    FileInputStream inputStream = null;
+                    try {
+                        inputStream = new FileInputStream(infile);
+                        // TODO
+                        // model = new MazePersistRaw().parseInputStream("raw",inputStream);
+                        Drawing drawing = new Drawing();
+                        drawing.loadLines(new DataInputStream(inputStream));
+                        statusEnable = false;
+                        maze.addDrawing(drawing,add);
+                        statusEnable = true;
+                    } catch (IOException io) {
+                        io.printStackTrace(System.err);
+                        statusField.setText("[ERROR] Can't load " + infile.getAbsolutePath());
+                    } finally {
+                        if (inputStream != null) {
+                            // cleanup
+                            try {
+                                inputStream.close();
+                            } catch (Exception any) {
+                                // don't care really
+                            }
+                        }
+                    }
+                }
+            }.start();
+        }
+    }
+
     private JButton addDirection(final JPanel panel, final String direction, String key, Action goAction) {
         String actionName = "go" + direction;
         JButton button = new JButton(direction);

java/org/artisanlogiciel/games/minetest/Node.java

@@ -1,2 +1,4 @@
-package org.artisanlogiciel.games.minetest;public class Node {
+package org.artisanlogiciel.games.minetest;
+
+public class Node {
 }

java/org/artisanlogiciel/osm/OsmReader.java

@@ -18,10 +18,38 @@ public class OsmReader {
     private HashMap<NodeRef,Node> refs;
     private List<Way> ways;
 
+    public List<Way> getBuildings() {
+        return buildings;
+    }
+
+    private List<Way> buildings;
+
+    public double getMinlat() {
+        return minlat;
+    }
+
+    public double getMinlon() {
+        return minlon;
+    }
+
+    public double getMaxlat() {
+        return maxlat;
+    }
+
+    public double getMaxlon() {
+        return maxlon;
+    }
+
+    double minlat = 0;
+    double minlon = 0;
+    double maxlat = 180;
+    double maxlon = 180;
+
     public OsmReader(String sample) {
         this.sample = sample;
         refs = new HashMap<>();
         ways = new ArrayList<>();
+        buildings = new ArrayList<>();
     }
 
     public List<Way> getWays() {
@@ -38,6 +66,25 @@ public class OsmReader {
             Document doc = builder.parse(new FileInputStream(sample));
             Element root = doc.getDocumentElement();
             System.out.println(root);
+            // <bounds minlat="43.6399000" minlon="7.0058300" maxlat="43.6435000" maxlon="7.0111700"/>
+            NodeList boundList = doc.getElementsByTagName("bounds");
+            for (int temp = 0; temp < boundList.getLength(); temp++) {
+                org.w3c.dom.Node nNode = boundList.item(temp);
+                if (nNode.getNodeType() == org.w3c.dom.Node.ELEMENT_NODE) {
+                    Element e = (Element) nNode;
+                    minlat = Double.valueOf(e.getAttribute("minlat"));
+                    minlon = Double.valueOf(e.getAttribute("minlon"));
+                    maxlat = Double.valueOf(e.getAttribute("maxlat"));
+                    maxlon = Double.valueOf(e.getAttribute("maxlon"));
+                }
+            }
+
+            int boundserror = 0;
+            System.out.println("minlat " + minlat);
+            System.out.println("maxlat " + maxlat);
+            System.out.println("minlon " + minlon);
+            System.out.println("maxlon " + maxlon);
+
             NodeList nList = doc.getElementsByTagName("node");
             for (int temp = 0; temp < nList.getLength(); temp++) {
                 org.w3c.dom.Node nNode = nList.item(temp);
@@ -46,6 +93,26 @@ public class OsmReader {
                     long id = Long.valueOf(e.getAttribute("id"));
                     double lat = Double.valueOf(e.getAttribute("lat"));
                     double lon = Double.valueOf(e.getAttribute("lon"));
+                    if (lat < minlat)
+                    {
+                        boundserror ++;
+                        System.err.println("lat < minlat " + lat );
+                    }
+                    else if (lat > maxlat)
+                    {
+                        boundserror ++;
+                        System.err.println("lat > minlat " + lat);
+                    }
+                    if (lon < minlon)
+                    {
+                        boundserror ++;
+                        System.err.println("lon < minlon " + lon);
+                    }
+                    else if (lon > maxlon)
+                    {
+                        boundserror ++;
+                        System.err.println("lon > minlon " + lon);
+                    }
                     Node node = new Node(new NodeRef(id), lat, lon);
                     refs.put(node.getRef(),node);
                 }
@@ -75,9 +142,20 @@ public class OsmReader {
                                 }
                             }
                         }
+                        if ( nodeRefList.size() > 0 )
+                        {
                             Way way = new Way(id, nodeRefList);
+                            // closed way ?
+                            if (nodeRefList.get(0).equals(nodeRefList.get(nodeRefList.size() -1)))
+                            {
+                                buildings.add(way);
+                            }
+                            else
+                            {
                                 ways.add(way);
                             }
+                        }
+                    }
                     catch (Exception bad)
                     {
                         System.err.println("Too bad way");
@@ -98,12 +176,5 @@ public class OsmReader {
         System.out.println(refs);
         System.out.println(ways);
     }
-    public static void main(String pArgs[])
-    {
-        String sample = "/home/plhardy/valbonne3D/valbonne_oct_2020.osm";
 
-        OsmReader osmreader = new OsmReader(sample);
-        osmreader.read();
-        osmreader.dump();
-    }
 }

java/org/artisanlogiciel/osm/convert/OsmToDrawing.java

@@ -4,9 +4,14 @@ import org.artisanlogiciel.graphics.Drawing;
 import org.artisanlogiciel.graphics.DrawingLine;
 import org.artisanlogiciel.osm.Node;
 import org.artisanlogiciel.osm.NodeRef;
+import org.artisanlogiciel.osm.OsmReader;
 import org.artisanlogiciel.osm.Way;
 
 import java.awt.*;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileOutputStream;
+import java.io.IOException;
 import java.util.List;
 
 /**
@@ -20,9 +25,28 @@ public class OsmToDrawing {
     int mulx = 1;
     int muly = 1;
 
-    public OsmToDrawing()
+    double minlat = 0;
-    {
+    double minlon = 0;
+    double maxlat = 180;
+    double maxlon = 180;
 
+    int boundserror = 0;
+
+    public OsmToDrawing(OsmReader reader, int mulx, int muly)
+    {
+        this.refx = reader.getMinlat();
+        this.minlat = reader.getMinlat();
+        this.refy = reader.getMinlon();
+        this.minlon = reader.getMinlon();
+        this.maxlat = reader.getMaxlat();
+        this.maxlon = reader.getMaxlon();
+        this.mulx = mulx;
+        this.muly = muly;
+
+        System.out.println("minlat " + minlat);
+        System.out.println("maxlat " + maxlat);
+        System.out.println("minlon " + minlon);
+        System.out.println("maxlon " + maxlon);
     }
 
     public OsmToDrawing(int mulx, int muly) {
@@ -43,7 +67,29 @@ public class OsmToDrawing {
         for (NodeRef nr : way.getNdlist())
         {
             Node node = nr.getNode();
-            drawingLine.addPoint(new Point((int) ( (node.getLat() - refx)* mulx ) , (int) ( (node.getLon() - refy ) * muly) ));
+            double lat = node.getLat();
+            double lon = node.getLon();
+            if (lat < minlat)
+            {
+                boundserror ++;
+                System.err.println("lat < minlat " + lat );
+            }
+            else if (lat > maxlat)
+            {
+                boundserror ++;
+                System.err.println("lat > minlat " + lat);
+            }
+            if (lon < minlon)
+            {
+                boundserror ++;
+                System.err.println("lon < minlon " + lon);
+            }
+            else if (lon > maxlon)
+            {
+                boundserror ++;
+                System.err.println("lon > minlon " + lon);
+            }
+            drawingLine.addPoint(new Point((int) ( (lat - refx)* mulx ) , (int) ( (lon - refy ) * muly) ));
         }
         return drawingLine;
     }
@@ -52,8 +98,57 @@ public class OsmToDrawing {
     {
         Drawing drawing = new Drawing();
         for (Way way : ways) {
-            drawing.addLine(getDrawingLine(way));
+            int currenterrors = boundserror;
+            DrawingLine line = getDrawingLine(way);
+            if ( currenterrors == boundserror ) {
+                drawing.addLine(line);
+            }
+            else
+            {
+                System.err.println("skipping one line out of bound nodes");
+            }
         }
         return drawing;
     }
+
+    public static void main(String pArgs[])
+    {
+        if ( pArgs.length > 0 ) {
+            String sample = pArgs[0];
+            OsmReader osmreader = new OsmReader(sample);
+            osmreader.read();
+            osmreader.dump();
+            OsmToDrawing converter = new OsmToDrawing(osmreader, 25000,25000);
+            Drawing drawing = converter.getDrawing(osmreader.getWays());
+            String savename = sample + ".ways";
+            saveImc(savename, drawing);
+            saveDrawing(savename, drawing);
+            Drawing drawing2 = converter.getDrawing(osmreader.getBuildings());
+            savename = sample + ".buildings";
+            saveImc(savename, drawing2);
+            saveDrawing(savename, drawing2);
+        }
+    }
+
+    private static void saveDrawing(String sample, Drawing drawing) {
+        try {
+            FileOutputStream out = new FileOutputStream(sample + ".drawing");
+            drawing.saveLines(new DataOutputStream(out));
+            out.flush();
+            out.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
+
+    private static void saveImc(String sample, Drawing drawing) {
+        try {
+            FileOutputStream out = new FileOutputStream(sample + ".imc");
+            drawing.saveLinesKompressed(new DataOutputStream(out));
+            out.flush();
+            out.close();
+        } catch (IOException e) {
+            e.printStackTrace();
+        }
+    }
 }