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add GeoJSON track format

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This commit is contained in:
Norbert Renner 2014-08-23 20:54:22 +02:00
parent 3f49938e2a
commit 76c1641899
2 changed files with 46 additions and 1 deletions
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37
brouter-core/src/main/java/btools/router/OsmTrack.java
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@ -286,6 +286,43 @@ public final class OsmTrack
return sb.toString();
}
public String formatAsGeoJson()
{
StringBuilder sb = new StringBuilder(8192);
sb.append( "{\n" );
sb.append( " \"type\": \"FeatureCollection\",\n" );
sb.append( " \"features\": [\n" );
sb.append( " {\n" );
sb.append( " \"type\": \"Feature\",\n" );
sb.append( " \"properties\": {\n" );
sb.append( " \"creator\": \"BRouter-1.0.2\",\n" );
sb.append( " \"name\": \"" ).append( name ).append( "\",\n" );
sb.append( " \"track-length\": \"" ).append( distance ).append( "\",\n" );
sb.append( " \"filtered ascend\": \"" ).append( ascend ).append( "\",\n" );
sb.append( " \"plain-ascend\": \"" ).append( plainAscend ).append( "\",\n" );
sb.append( " \"cost\": \"" ).append( cost ).append( "\"\n" );
sb.append( " },\n" );
sb.append( " \"geometry\": {\n" );
sb.append( " \"type\": \"LineString\",\n" );
sb.append( " \"coordinates\": [\n" );
for( OsmPathElement n : nodes )
{
String sele = n.getSElev() == Short.MIN_VALUE ? "" : ", " + n.getElev();
sb.append( " [" ).append(formatPos(n.getILon() - 180000000)).append(", ").append(formatPos(n.getILat() - 90000000)).append(sele).append( "],\n" );
}
sb.deleteCharAt( sb.lastIndexOf( "," ) );
sb.append( " ]\n" );
sb.append( " }\n" );
sb.append( " }\n" );
sb.append( " ]\n" );
sb.append( "}\n" );
return sb.toString();
}
private static String formatPos( int p )
{
boolean negative = p < 0;