Disable strand arrows at certain scale

GMOD · Oct 31, 2018 · 7238ac1 · 7238ac1
1 parent f30b492
commit 7238ac1
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Showing 2 changed files with 3 additions and 3 deletions.
diff --git a/src/JBrowse/View/FeatureGlyph/Box.js b/src/JBrowse/View/FeatureGlyph/Box.js
@@ -218,7 +218,7 @@ return declare([ FeatureGlyph, FeatureLabelMixin], {
         if( bgcolor ) {
             context.fillStyle = bgcolor;
             context.fillRect( left, top, Math.max(1,width), height );
-            if(this.config.style.strandInlay && width > 1) {
+            if(this.config.style.strandInlay && viewInfo.scale > 0.2 ) {
                 var arrowWidth = this.config.style.strandInlayWidth
                 if(feature.get('strand') === 1) {
                     context.beginPath();
@@ -364,7 +364,7 @@ return declare([ FeatureGlyph, FeatureLabelMixin], {
     mouseoverFeature( context, fRect ) {
         this.inherited(arguments)
         var feature = fRect.f
-        if(this.config.style.strandInlay) {
+        if(this.config.style.strandInlay && fRect.viewInfo.scale > 0.2) {
             var arrowWidth = this.config.style.strandInlayWidth
             var top = fRect.t
             var height = fRect.rect.h

diff --git a/src/JBrowse/View/Track/Alignments2.js b/src/JBrowse/View/Track/Alignments2.js
@@ -178,7 +178,7 @@ return declare( [ CanvasFeatureTrack, AlignmentsMixin ], {
         if(this.config.viewAsPairs) {
             let supermethod = this.getInherited(arguments)
             var reg = this.browser.view.visibleRegion()
-            var len = reg.end - reg.start
+            var len = Math.max(reg.end - reg.start, 4000)
             const region = {
                 ref: this.refSeq.name,
                 start: Math.max( 0, reg.start ),