From e4559edc53bbb68d611962ab4088c61a848283c3 Mon Sep 17 00:00:00 2001
From: Kirill Rogovoy <kirill@rogovoy.me>
Date: Fri, 23 Jul 2021 17:38:09 +0300
Subject: Bring back node/link size change when highlighted

---
 pages/index.tsx | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

(limited to 'pages')

diff --git a/pages/index.tsx b/pages/index.tsx
index b78e357..da9a405 100644
--- a/pages/index.tsx
+++ b/pages/index.tsx
@@ -720,7 +720,9 @@ export const Graph = function (props: GraphProps) {
     nodeRelSize: physics.nodeRel,
     nodeVal: (node) => {
       const links = linksByNodeId[node.id!] ?? []
-      return links.length
+      const basicSize = 3 + links.length
+      const highlightSize = highlightedNodes[node.id!] ? physics.highlightNodeSize : 1
+      return basicSize * highlightSize
     },
     nodeCanvasObject: (node, ctx, globalScale) => {
       if (!physics.labels) {
@@ -781,12 +783,19 @@ export const Graph = function (props: GraphProps) {
 
       return linkIsHighlighted ? theme.colors.purple[500] : theme.colors.gray[500]
     },
-    linkWidth: physics.linkWidth,
+    linkWidth: (link) => {
+      const linkIsHighlighted =
+        (link.source as NodeObject).id! === centralHighlightedNode?.id! ||
+        (link.target as NodeObject).id! === centralHighlightedNode?.id!
+
+      return linkIsHighlighted ? physics.highlightLinkSize * physics.linkWidth : physics.linkWidth
+    },
     linkDirectionalParticleWidth: physics.particlesWidth,
 
     d3AlphaDecay: physics.alphaDecay,
     d3AlphaMin: physics.alphaMin,
     d3VelocityDecay: physics.velocityDecay,
+
     onNodeClick,
     onBackgroundClick: () => {
       setScope((currentScope) => ({
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