Migrated source code from Simantics SVN

[simantics/platform.git] / bundles / org.simantics.databoard / src / org / simantics / databoard / units / internal / deprecated / Magnitude.java

diff --git a/bundles/org.simantics.databoard/src/org/simantics/databoard/units/internal/deprecated/Magnitude.java b/bundles/org.simantics.databoard/src/org/simantics/databoard/units/internal/deprecated/Magnitude.java
new file mode 100644 (file)
index 0000000..7c802d7
--- /dev/null
+++ b/bundles/org.simantics.databoard/src/org/simantics/databoard/units/internal/deprecated/Magnitude.java
@@ -0,0 +1,80 @@
+/*******************************************************************************\r
+ *  Copyright (c) 2010 Association for Decentralized Information Management in\r
+ *  Industry THTH ry.\r
+ *  All rights reserved. This program and the accompanying materials\r
+ *  are made available under the terms of the Eclipse Public License v1.0\r
+ *  which accompanies this distribution, and is available at\r
+ *  http://www.eclipse.org/legal/epl-v10.html\r
+ *\r
+ *  Contributors:\r
+ *      VTT Technical Research Centre of Finland - initial API and implementation\r
+ *******************************************************************************/\r
+package org.simantics.databoard.units.internal.deprecated;
+
+public enum Magnitude {
+       
+       yotta("Y", 24, "yotta"),
+       zetta("Z", 21, "zetta"),
+       exa("E", 18, "exa"),
+       peta("P", 15, "peta"),
+       tera("T", 12, "tera"),
+       giga("G", 9, "giga"),
+       mega("M", 6, "mega"),
+       kilo("k", 3, "kilo"),
+       hecto("h", 2, "hecto"),
+       deca("da", 1, "deca"),
+       unscaled("", 0, ""),
+       deci("d", -1, "deci"),
+       centi("c", -2, "centi"),
+       milli("m", -3, "milli"),
+       micro("µ", -6, "micro"),
+       nano("n", -9, "nano"),
+       pico("p", -12, "pico"),
+       femto("f", -15, "femto"),
+       atto("a", -18, "atto"),
+       zepto("z", -21, "zepto"),
+       yocto("y", -24, "yocto")        
+       ;       
+       
+       String symbol;
+       int exp;
+       String name;
+       
+       private Magnitude(String symbol, int exp, String prefix) {
+               this.symbol = symbol;
+               this.exp = exp;
+               this.name = prefix;
+       }
+       
+       public String getPrefix() {
+               return name;
+       }
+       
+       @Override
+       public String toString() {
+               return name;
+       }
+       
+       public int getExponent() {
+               return exp;
+       }
+       
+       /**
+        * Get most suitable magnitude for a value 
+        * 
+        * @param value
+        * @return suitable magnitude
+        */
+       public static Magnitude getSuitable(double value)
+       {
+               double exp = Math.log10(value);
+               for (Magnitude m : values()) {
+                       if (m.equals(hecto)||m.equals(deca)) continue;
+                       if (m.exp<exp)
+                               return m;
+               }
+               return yotta;
+       }
+       
+               
+}