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changeset 58:bb2bbb192e2b

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Normalise time series values.
author Lucas Thompson <dev@lucas.im>
date Thu, 08 Dec 2016 16:45:30 +0000
parents 6ece58c96868
children 010871a771d3
files src/app/waveform/waveform.component.ts
diffstat 1 files changed, 7 insertions(+), 1 deletions(-) [+]
line wrap: on
line diff
--- a/src/app/waveform/waveform.component.ts	Thu Dec 08 16:23:22 2016 +0000
+++ b/src/app/waveform/waveform.component.ts	Thu Dec 08 16:45:30 2016 +0000
@@ -137,10 +137,16 @@
 
   // TODO refactor - this doesn't belong here
   private renderFeatures(features: FeatureList): void {
+    const normalisationFactor = 1.0 /
+      features.reduce((currentMax, feature) => {
+        return (feature.featureValues)
+          ? Math.max(currentMax, feature.featureValues[0])
+          : currentMax;
+      }, -Infinity);
     const plotData = features.map(feature => {
       return {
         cx: toSeconds(feature.timestamp),
-        cy: feature.featureValues[0]
+        cy: feature.featureValues[0] * normalisationFactor
       };
     });
     this.addLayer(