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Better distance computation (revisited)

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Arndt Brenschede 2018-12-07 00:45:12 +01:00
parent e7afb236a6
commit ab2f5e3ae0
12 changed files with 101 additions and 543 deletions
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16
brouter-routing-app/src/main/java/btools/routingapp/BRouterView.java
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@ -509,17 +509,17 @@ public class BRouterView extends View
centerLon = ( maxlon + minlon ) / 2;
centerLat = ( maxlat + minlat ) / 2;
CheapRulerSingleton cr = CheapRulerSingleton.getInstance();
double coslat = cr.cosIlat(centerLat);
double difflon = maxlon - minlon;
double difflat = maxlat - minlat;
double[] lonlat2m = CheapRulerSingleton.getLonLatToMeterScales( centerLat );
double dlon2m = lonlat2m[0];
double dlat2m = lonlat2m[1];
double difflon = (maxlon - minlon)*dlon2m;
double difflat = (maxlat - minlat)*dlat2m;
scaleLon = imgw / ( difflon * 1.5 );
scaleLat = imgh / ( difflat * 1.5 );
if ( scaleLon < scaleLat * coslat )
scaleLat = scaleLon / coslat;
else
scaleLon = scaleLat * coslat;
double scaleMin = scaleLon < scaleLat ? scaleLon : scaleLat;
scaleLat *= dlon2m;
scaleLon *= dlat2m;
startTime = System.currentTimeMillis();
RoutingContext.prepareNogoPoints( nogoList );