From: Keith Packard <keithp@keithp.com>
Date: Tue, 3 Sep 2013 23:41:12 +0000 (-0600)
Subject: altoslib: Start integrated value at 0 by default
X-Git-Tag: 1.2.9.4~100
X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=commitdiff_plain;h=4de934c283a839fcbb246b36aa15362f3cf8629c;ds=sidebyside

altoslib: Start integrated value at 0 by default

Check for MISSING and start at zero in that case

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

diff --git a/altoslib/AltosState.java b/altoslib/AltosState.java
index 726c3041..e874a498 100644
--- a/altoslib/AltosState.java
+++ b/altoslib/AltosState.java
@@ -150,8 +150,12 @@ public class AltosState implements Cloneable {
 		void set_integral(AltosValue in) {
 			double	change = in.integrate();
 
-			if (change != AltosRecord.MISSING)
-				set(prev_value + change, in.time());
+			if (change != AltosRecord.MISSING) {
+				double	prev = prev_value;
+				if (prev == AltosRecord.MISSING)
+					prev = 0;
+				set(prev + change, in.time());
+			}
 		}
 
 		void copy(AltosValue old) {