diff options
| author | Anthony Towns <aj@erisian.com.au> | 2010-11-21 10:55:22 +1000 |
|---|---|---|
| committer | Anthony Towns <aj@erisian.com.au> | 2010-11-21 10:55:22 +1000 |
| commit | 878913551a1e4e3c8f2b39fa4aeb234880735a1c (patch) | |
| tree | 9c96f3131ef634865d2cfa3f0c684ffd273ef8c4 /ao-tools | |
| parent | 2a7dc3ba36bac81640a9498e0d0caf1470b57c19 (diff) | |
AltosSiteMap: explain tile size better
Diffstat (limited to 'ao-tools')
| -rw-r--r-- | ao-tools/altosui/AltosSiteMap.java | 8 |
1 files changed, 5 insertions, 3 deletions
diff --git a/ao-tools/altosui/AltosSiteMap.java b/ao-tools/altosui/AltosSiteMap.java index 72a65b15..e222e2c8 100644 --- a/ao-tools/altosui/AltosSiteMap.java +++ b/ao-tools/altosui/AltosSiteMap.java @@ -33,8 +33,10 @@ import java.awt.geom.Point2D; import java.awt.geom.Line2D; public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { - // max vertical step in a tile in naut. miles - static final double tile_size_nmi = 2.0; + // preferred vertical step in a tile in naut. miles + // will actually choose a step size between x and 2x, where this + // is 1.5x + static final double tile_size_nmi = 1.5; static final int px_size = 512; @@ -117,7 +119,7 @@ public class AltosSiteMap extends JScrollPane implements AltosFlightDisplay { scale_x = 256/360.0 * Math.pow(2, zoom); scale_y = 256/(2.0*Math.PI) * Math.pow(2, zoom); locn = pt(lat, lng); - north_step = pt(lat+tile_size_nmi/60.0, lng); + north_step = pt(lat+tile_size_nmi*4/3/60.0, lng); if (locn.y - north_step.y > px_size) break; } while (zoom < 22); |