git.gag.com Git - fw/altos/blob - altoslib/AltosDistance.java

   1 /*
   2  * Copyright © 2012 Keith Packard <keithp@keithp.com>
   3  *
   4  * This program is free software; you can redistribute it and/or modify
   5  * it under the terms of the GNU General Public License as published by
   6  * the Free Software Foundation; either version 2 of the License, or
   7  * (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful, but
  10  * WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12  * General Public License for more details.
  13  *
  14  * You should have received a copy of the GNU General Public License along
  15  * with this program; if not, write to the Free Software Foundation, Inc.,
  16  * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
  17  */
  18
  19 package org.altusmetrum.altoslib_13;
  20
  21 public class AltosDistance extends AltosUnits {
  22
  23         public double value(double v, boolean imperial_units) {
  24                 if (imperial_units)
  25                         return AltosConvert.meters_to_miles(v);
  26                 return v;
  27         }
  28
  29         public double inverse(double v, boolean imperial_units) {
  30                 if (imperial_units)
  31                         return AltosConvert.miles_to_meters(v);
  32                 return v;
  33         }
  34
  35         public String show_units(boolean imperial_units) {
  36                 if (imperial_units)
  37                         return "miles";
  38                 return "m";
  39         }
  40
  41         public String say_units(boolean imperial_units) {
  42                 if (imperial_units)
  43                         return "miles";
  44                 return "meters";
  45         }
  46
  47         public int show_fraction(int width, boolean imperial_units) {
  48                 if (imperial_units)
  49                         return width / 3;
  50                 return width / 9;
  51         }
  52
  53         public int say_fraction(boolean imperial_units) {
  54                 if (imperial_units)
  55                         return 1;
  56                 return 0;
  57         }
  58
  59         public AltosDistance() {
  60                 range_metric = new AltosUnitsRange[2];
  61
  62                 range_metric[0] = new AltosUnitsRange(0, "m", "meters") {
  63                                 double value(double v) {
  64                                         return v;
  65                                 }
  66                                 int show_fraction(int width) {
  67                                         return width / 9;
  68                                 }
  69                                 int say_fraction() {
  70                                         return 0;
  71                                 }
  72                         };
  73                 range_metric[1] = new AltosUnitsRange(2000, "km", "kilometers") {
  74                                 double value(double v) {
  75                                         return v / 1000;
  76                                 }
  77                                 int show_fraction(int width) {
  78                                         return width / 5;
  79                                 }
  80                                 int say_fraction() {
  81                                         return 1;
  82                                 }
  83                         };
  84
  85                 range_imperial = new AltosUnitsRange[2];
  86
  87                 range_imperial[0] = new AltosUnitsRange(0, "ft", "feet") {
  88                                 double value(double v) {
  89                                         return AltosConvert.meters_to_feet(v);
  90                                 }
  91                                 int show_fraction(int width) {
  92                                         return width / 9;
  93                                 }
  94                                 int say_fraction() {
  95                                         return 0;
  96                                 }
  97                         };
  98
  99                 range_imperial[1] = new AltosUnitsRange(AltosConvert.feet_to_meters(5280),
 100                                                         "mi", "miles") {
 101                                 double value(double v) {
 102                                         return AltosConvert.meters_to_miles(v);
 103                                 }
 104                                 int show_fraction(int width) {
 105                                         return width / 5;
 106                                 }
 107                                 int say_fraction() {
 108                                         return 1;
 109                                 }
 110                         };
 111         }
 112 }