altoslib: Add initial time series functions

Provides the basis for offering a sequence of time/value datasets for
graphing instead of using AltosState.

Signed-off-by: Keith Packard <keithp@keithp.com>

diff --git a/altoslib/AltosTime.java b/altoslib/AltosTime.java
new file mode 100644 (file)
index 0000000..de094e8
--- /dev/null
+++ b/altoslib/AltosTime.java
@@ -0,0 +1,33 @@
+/*
+ * Copyright © 2017 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+package org.altusmetrum.altoslib_11;
+
+public class AltosTime extends AltosUnits {
+       public double value(double v, boolean imperial_units) { return v; }
+
+       public double inverse(double v, boolean imperial_unis) { return v; }
+
+       public String show_units(boolean imperial_units) { return "s"; }
+
+       public String say_units(boolean imperial_units) { return "seconds"; }
+
+       public int show_fraction(int width, boolean imperial_units) {
+               if (width < 5)
+                       return 0;
+               return width - 5;
+       }
+
+       public int say_fraction(boolean imperial_units) { return 0; }
+}

diff --git a/altoslib/AltosTimeSeries.java b/altoslib/AltosTimeSeries.java
new file mode 100644 (file)
index 0000000..53c0076
--- /dev/null
+++ b/altoslib/AltosTimeSeries.java
@@ -0,0 +1,37 @@
+/*
+ * Copyright © 2017 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ */
+
+package org.altusmetrum.altoslib_11;
+
+import java.util.*;
+
+public class AltosTimeSeries implements Iterable<AltosTimeValue> {
+       public String           label;
+       public AltosUnits       units;
+       List<AltosTimeValue>    values;
+
+       public void add(double x, double y) {
+               values.add(new AltosTimeValue(x, y));
+       }
+
+       public Iterator<AltosTimeValue> iterator() {
+               return values.iterator();
+       }
+
+       public AltosTimeSeries(String label, AltosUnits units) {
+               this.label = label;
+               this.units = units;
+               this.values = new ArrayList<AltosTimeValue>();
+       }
+}

diff --git a/altoslib/AltosTimeValue.java b/altoslib/AltosTimeValue.java
new file mode 100644 (file)
index 0000000..5021236
--- /dev/null
+++ b/altoslib/AltosTimeValue.java
@@ -0,0 +1,27 @@
+/*
+ * Copyright © 2017 Keith Packard <keithp@keithp.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+ * General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+ */
+
+package org.altusmetrum.altoslib_11;
+
+public class AltosTimeValue {
+       public double   x, y;
+
+       public AltosTimeValue(double x, double y) {
+               this.x = x;
+               this.y = y;
+       }
+}