Only initialize smaller regions

GMOD · Nov 18, 2018 · 894e569 · 894e569
1 parent 60883d6
commit 894e569
Showing 1 changed file with 7 additions and 4 deletions.
diff --git a/src/JBrowse/View/Track/Alignments2.js b/src/JBrowse/View/Track/Alignments2.js
@@ -218,19 +218,22 @@ return declare( [ CanvasFeatureTrack, AlignmentsMixin ], {
             this._handleError(e, args)
             finishCallback(e)
         }
+        this.init = this.init || false
 
         if(this.config.viewAsPairs || this.config.viewAsSpans || this.config.colorByOrientation) {
             let supermethod = this.getInherited(arguments)
-            const len = Math.min(Math.max(args.rightBase - args.leftBase, 4000), 100000)
+            const len = Math.max(args.rightBase - args.leftBase, 4000)
             const region = {
                 ref: this.refSeq.name,
                 start: Math.max(0, args.leftBase),
                 end: args.rightBase,
                 viewAsPairs: true
             }
-            const e = 30
-            const min = Math.max(0, region.start - len * e)
-            const max = region.end + len * e
+            const e = this.init ? 2 : 30
+            this.init = true
+            console.log(e)
+            const min = Math.max(0, region.start - Math.min(len * e, 100000))
+            const max = region.end + Math.min(len * e, 100000)
             var cachePromise = new Promise((resolve, reject) => {
                 this.store.getFeatures({
                     ref: this.refSeq.name,