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

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- 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
This commit is contained in:
philippe lhardy
2020-11-01 12:44:05 +01:00
parent 8af19bdb59
commit 94b4a0ce66
4 changed files with 237 additions and 15 deletions
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89
java/org/artisanlogiciel/osm/OsmReader.java
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@@ -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);
}
@@ -75,8 +142,19 @@ public class OsmReader {
}
}
}
Way way = new Way(id, nodeRefList);
ways.add(way);
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)
{
@@ -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();
}
}

103
java/org/artisanlogiciel/osm/convert/OsmToDrawing.java
View File

@@ -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();
}
}
}