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Diffstat (limited to 'src/org/traccar/helper/UnitsConverter.java')
-rw-r--r--src/org/traccar/helper/UnitsConverter.java15
1 files changed, 14 insertions, 1 deletions
diff --git a/src/org/traccar/helper/UnitsConverter.java b/src/org/traccar/helper/UnitsConverter.java
index 4bc7348db..e0d94c6dc 100644
--- a/src/org/traccar/helper/UnitsConverter.java
+++ b/src/org/traccar/helper/UnitsConverter.java
@@ -1,5 +1,5 @@
/*
- * Copyright 2015 Anton Tananaev (anton.tananaev@gmail.com)
+ * Copyright 2015 Anton Tananaev (anton@traccar.org)
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
@@ -21,6 +21,7 @@ public final class UnitsConverter {
private static final double KNOTS_TO_MPH_RATIO = 0.868976;
private static final double KNOTS_TO_MPS_RATIO = 1.94384;
private static final double KNOTS_TO_CPS_RATIO = 0.0194384449;
+ private static final double METERS_TO_FEET_RATIO = 0.3048;
private UnitsConverter() {
}
@@ -45,8 +46,20 @@ public final class UnitsConverter {
return value * KNOTS_TO_MPS_RATIO;
}
+ public static double mpsFromKnots(double value) {
+ return value / KNOTS_TO_MPS_RATIO;
+ }
+
public static double knotsFromCps(double value) { // cm/s
return value * KNOTS_TO_CPS_RATIO;
}
+ public static double feetFromMeters(double value) {
+ return value / METERS_TO_FEET_RATIO;
+ }
+
+ public static double metersFromFeet(double value) {
+ return value * METERS_TO_FEET_RATIO;
+ }
+
}