From 529aa947e161cfc9e212f10840956da75fa29591 Mon Sep 17 00:00:00 2001
From: gator <gatordevin@gmail.com>
Date: Sun, 16 Aug 2026 15:32:32 +0000
Subject: [PATCH] footprint: fit each pad label to its pad
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With real geometry in, a fixed label size turns multi-character names on fine-pitch
pads into overlapping mush — USB-C's A1/B12 row was unreadable. Scale per pad instead,
bounded by both the pad width (divided across the label) and its height.
---
 assets/part.js | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/assets/part.js b/assets/part.js
index 1bfcf6a..d9b5601 100644
--- a/assets/part.js
+++ b/assets/part.js
@@ -22,7 +22,13 @@ function footprintSVG(p) {
     // EasyEDA names a round pad ELLIPSE; OVAL/ROUND are the KiCad-side spellings.
     const round = /OVAL|ROUND|ELLIPSE|CIRCLE/.test((d.shape || '').toUpperCase());
     s += `<rect x="${d.x - d.w / 2}" y="${d.y - d.h / 2}" width="${d.w}" height="${d.h}" rx="${round ? Math.min(d.w, d.h) / 2 : fs * 0.06}" fill="#c47a3d" stroke="#8a531f" stroke-width="${fs * 0.05}"/>`;
-    if (d.n != null) s += `<text x="${d.x}" y="${d.y + fs * 0.35}" font-size="${fs}" fill="#2a1a0c" text-anchor="middle" font-weight="600">${esc(d.n)}</text>`;
+    // Fit the label to its pad. A fixed size turns multi-character names on fine-pitch
+    // pads (USB-C's A1/B12) into overlapping mush, so narrow pads get smaller text.
+    if (d.n != null) {
+      const lab = String(d.n);
+      const pf = Math.min(fs, (d.w * 1.7) / Math.max(lab.length, 1), d.h * 0.95);
+      s += `<text x="${d.x}" y="${d.y + pf * 0.35}" font-size="${pf}" fill="#2a1a0c" text-anchor="middle" font-weight="600">${esc(lab)}</text>`;
+    }
   }
   if (p.class === 'connector') {   // board-edge marker on the mating side
     s += `<line x1="${minx + m * 0.4}" y1="${maxy - m * 0.5}" x2="${maxx - m * 0.4}" y2="${maxy - m * 0.5}" stroke="#2f8f2f" stroke-width="${fs * 0.18}"/>`;