fix(graph): keep settling resistance responsive

Author: Coding-Dev-Tools

engraphis/dashboard_assets/engraphis-graph-every-worker.js

@@ -338,7 +338,9 @@
     /* A tight per-pass step cap keeps the settle from smearing district boundaries. */
     const resistance = Number.isFinite(Number(settings.damping))
       ? Math.max(0, Math.min(15, Number(settings.damping))) : 1;
-    const damp = Math.max(0.2, Math.min(0.95, 0.8 / (0.75 + 0.25 * resistance)));
+    /* Keep the full 0..15 control range responsive: the reciprocal curve reaches 0.2
+       at resistance 13, so a 0.2 floor would make the final two slider units inert. */
+    const damp = Math.max(0.15, Math.min(0.95, 0.8 / (0.75 + 0.25 * resistance)));
     const maxStep = SPACING * MAP_SCALE * 0.7;
     for (let index = 0; index < count; index += 1) {
       let vx = dx[index] * damp, vy = dy[index] * damp;

tests/test_graph_every_asset.py

@@ -168,6 +168,41 @@ def test_worker_settings_relayout_and_reheat_move_nodes() -> None:
     assert report["reheated_streams"] is True
 
 
+def test_worker_settling_resistance_keeps_high_end_distinct() -> None:
+    script = """
+const nodes = [
+  { id: 'a', community_id: 'c' },
+  { id: 'b', community_id: 'c' },
+  { id: 'c', community_id: 'c' },
+];
+send({ type: 'prepare', payload: { nodes, links: [{ source: 'a', target: 'b' }] } });
+const waitForLayouts = (count, callback) => {
+  const tick = () => {
+    if (all('layout').length >= count) return callback();
+    setTimeout(tick, 10);
+  };
+  tick();
+};
+waitForLayouts(1, () => {
+  const samples = {};
+  const next = (resistance, callback) => {
+    const before = all('layout').length;
+    send({ type: 'settings', settings: { damping: resistance }, relayout: true, fit: false });
+    // settings emits the reseeded preview immediately; wait for the first relaxed layout.
+    waitForLayouts(before + 2, () => {
+      samples[resistance] = latest('layout').positions;
+      callback();
+    });
+  };
+  next(13, () => next(14, () => next(15, () => console.log(JSON.stringify({ samples })))));
+});
+"""
+    report = _run_worker(script)
+    samples = report["samples"]
+    assert samples["13"] != samples["14"]
+    assert samples["14"] != samples["15"]
+
+
 def test_renderer_is_webgl2_only_without_live_simulation_or_canvas_fallback() -> None:
     renderer = RENDERER.read_text(encoding="utf-8")
     assert "getContext('webgl2'" in renderer