From: Nathaniel Wesley Filardo <nwf@cs.jhu.edu>
Date: Thu, 9 Jun 2016 03:54:46 +0000 (-0400)
Subject: Slightly prettier visualization?
X-Git-Url: https://hydra-www.ietfng.org/gitweb/?a=commitdiff_plain;h=4cc8b16daa1950413305623213158e87214cfcee;p=acmetensortoys-watchviz

Slightly prettier visualization?
---

diff --git a/app/src/main/java/com/acmetensortoys/watchviz/MainActivity.java b/app/src/main/java/com/acmetensortoys/watchviz/MainActivity.java
index d0f2ea1..25d77f5 100644
--- a/app/src/main/java/com/acmetensortoys/watchviz/MainActivity.java
+++ b/app/src/main/java/com/acmetensortoys/watchviz/MainActivity.java
@@ -89,7 +89,7 @@ public class MainActivity extends WearableActivity
         public void render(Canvas cv, float[] samples) {
             float msamp = 0.0f;
             int mix = -1;
-            for (int i = 0; i < samples.length; i += 2) {
+            for (int i = 0; i < samples.length/2; i += 2) {
                 if (samples[i] > msamp) {
                     msamp = samples[i];
                     mix = i;
@@ -132,7 +132,8 @@ public class MainActivity extends WearableActivity
             int rys = cv.getHeight() / 8;
             for (int rx = 0; rx < 8; rx++) {
                 for (int ry = 0; ry < 8; ry++) {
-                    float x = Math.abs(samples[((rx * 8 + ry) << 2) + 32]) * 64;
+                    int ix = (rx * 8 + ry) * 4;
+                    float x = (Math.abs(samples[ix]) + Math.abs(samples[ix+2])) * 32;
                     int b = x > 255 ? 255 : (int)x;
                     p.setAlpha(b > 223 ? 255 : b + 32);
                     cv.drawRect(rx * rxs, ry * rys, (rx + 1) * rxs - 1, (ry + 1) * rys - 1, p);