From 3fa5a1441a9f117299485df48217dcda37520d5b Mon Sep 17 00:00:00 2001
From: "Jan-Peter v. Hunnius" <jan@hunnius.net>
Date: Sat, 6 Jun 2026 08:16:10 +0200
Subject: [PATCH] feat: add RPM vs. Force and Speed vs. RPM charts to shift
 point analysis

---
 src/views/ShiftPointsView.vue | 79 +++++++++++++++++++++++++++++++++--
 1 file changed, 75 insertions(+), 4 deletions(-)

diff --git a/src/views/ShiftPointsView.vue b/src/views/ShiftPointsView.vue
index 06f76ed..49f9d5b 100644
--- a/src/views/ShiftPointsView.vue
+++ b/src/views/ShiftPointsView.vue
@@ -43,10 +43,41 @@ onMounted(async () => {
   }
 })
 
+const colors = ['#4f8ff7', '#34d399', '#fbbf24', '#f87171', '#a78bfa', '#60a5fa', '#f472b6']
+
+const rpmVsAccelChartData = computed(() => {
+  if (!analysis.value) return null
+  const curves = analysis.value.gear_curves.filter((g) => g.gear >= 2)
+  return {
+    datasets: curves.map((curve, i) => ({
+      label: `${curve.gear_display} (${curve.run_label})`,
+      data: curve.data_points.map((p) => ({ x: p.rpm, y: p.acceleration_g })),
+      borderColor: colors[i % colors.length],
+      backgroundColor: colors[i % colors.length] + '20',
+      showLine: true,
+      fill: false,
+      tension: 0.3,
+      pointRadius: 0,
+      borderWidth: 2,
+    })),
+  }
+})
+
+const rpmVsAccelChartOptions = {
+  responsive: true,
+  plugins: {
+    legend: { labels: { color: '#8b8fa3' } },
+    title: { display: true, text: 'RPM vs. Force', color: '#e2e4ea' },
+  },
+  scales: {
+    x: { ticks: { color: '#8b8fa3' }, grid: { color: '#2a2e3f' }, title: { display: true, text: 'RPM', color: '#8b8fa3' } },
+    y: { ticks: { color: '#8b8fa3' }, grid: { color: '#2a2e3f' }, title: { display: true, text: 'Force (g)', color: '#8b8fa3' } },
+  },
+}
+
 const gearCurvesChartData = computed(() => {
   if (!analysis.value) return null
   const curves = analysis.value.gear_curves.filter((g) => g.gear >= 2)
-  const colors = ['#4f8ff7', '#34d399', '#fbbf24', '#f87171', '#a78bfa', '#60a5fa', '#f472b6']
   return {
     datasets: curves.map((curve, i) => ({
       label: `${curve.gear_display} (${curve.run_label})`,
@@ -66,11 +97,41 @@ const gearCurvesOptions = {
   responsive: true,
   plugins: {
     legend: { labels: { color: '#8b8fa3' } },
-    title: { display: true, text: 'Gear Acceleration Curves', color: '#e2e4ea' },
+    title: { display: true, text: 'Speed vs. Force', color: '#e2e4ea' },
   },
   scales: {
     x: { ticks: { color: '#8b8fa3' }, grid: { color: '#2a2e3f' }, title: { display: true, text: 'Speed (km/h)', color: '#8b8fa3' } },
-    y: { ticks: { color: '#8b8fa3' }, grid: { color: '#2a2e3f' }, title: { display: true, text: 'Acceleration (g)', color: '#8b8fa3' } },
+    y: { ticks: { color: '#8b8fa3' }, grid: { color: '#2a2e3f' }, title: { display: true, text: 'Force (g)', color: '#8b8fa3' } },
+  },
+}
+
+const speedVsRpmChartData = computed(() => {
+  if (!analysis.value) return null
+  const curves = analysis.value.gear_curves.filter((g) => g.gear >= 2)
+  return {
+    datasets: curves.map((curve, i) => ({
+      label: `${curve.gear_display} (${curve.run_label})`,
+      data: curve.data_points.map((p) => ({ x: p.speed_kmh, y: p.rpm })),
+      borderColor: colors[i % colors.length],
+      backgroundColor: colors[i % colors.length] + '20',
+      showLine: true,
+      fill: false,
+      tension: 0.3,
+      pointRadius: 0,
+      borderWidth: 2,
+    })),
+  }
+})
+
+const speedVsRpmChartOptions = {
+  responsive: true,
+  plugins: {
+    legend: { labels: { color: '#8b8fa3' } },
+    title: { display: true, text: 'Speed vs. RPM (Gear Ratios)', color: '#e2e4ea' },
+  },
+  scales: {
+    x: { ticks: { color: '#8b8fa3' }, grid: { color: '#2a2e3f' }, title: { display: true, text: 'Speed (km/h)', color: '#8b8fa3' } },
+    y: { ticks: { color: '#8b8fa3' }, grid: { color: '#2a2e3f' }, title: { display: true, text: 'RPM', color: '#8b8fa3' } },
   },
 }
 
@@ -157,11 +218,21 @@ const crossoverChartOptions = {
         </div>
       </div>
 
-      <!-- Gear Acceleration Curves Chart -->
+      <!-- RPM vs. Force Chart -->
+      <div v-if="rpmVsAccelChartData" class="card mb-3">
+        <Scatter :data="rpmVsAccelChartData" :options="rpmVsAccelChartOptions" />
+      </div>
+
+      <!-- Speed vs. Force Chart -->
       <div v-if="gearCurvesChartData" class="card mb-3">
         <Scatter :data="gearCurvesChartData" :options="gearCurvesOptions" />
       </div>
 
+      <!-- Speed vs. RPM Chart -->
+      <div v-if="speedVsRpmChartData" class="card mb-3">
+        <Scatter :data="speedVsRpmChartData" :options="speedVsRpmChartOptions" />
+      </div>
+
       <!-- Crossover Points Chart -->
       <div v-if="crossoverChartData" class="card mb-3">
         <Bar :data="crossoverChartData" :options="crossoverChartOptions" />