Draft of Documentation

public/calculateActions.js

@@ -374,7 +374,8 @@ async function calculate() {
     const row242 = getRow(242, 3);
     const row200 = getRow(200, 3);
     const row204 = getRow(204, 3);
-    const row222 = getRow(222, 3);
+    const row222 = getRow(222, 3); // Ellbow
+    const row223 = getRow(223, 3); // Lower Arm 
 
     const angleYCandidates = [];
 
@@ -451,6 +452,7 @@ async function calculate() {
       });
     }
 
+
     if (angleYCandidates.length > 0) {
       buildFeatureFromCandidates(
         result,
@@ -521,14 +523,15 @@ async function calculate() {
       let x226 = 0;
       let xCount = 0;
 
-      if(row222){
-        x226 += row222.x_mm * 5;
-        xCount += 5;
-      }
       if (row226) {
         x226 += row226.x_mm * 5;
         xCount += 5;
       }
+      if(row222){
+        /// 222 should have the same as x226
+        x226 += row222.x_mm * 5;
+        xCount += 5;
+      }
       if (row229) {
         x226 += row229.x_mm + 90;
         xCount += 1;
@@ -618,6 +621,27 @@ async function calculate() {
           }
         }
       }
+
+      // Ellbow-Rotation wenn X Position OK und 223 oder so bekannt ist.
+      if(row223 && xCount > 2){
+        // unterarm-roll => a    aus der position von 223  
+        dx = row223.x_mm - x226;
+        // aus der X Position kann der Unterarm-Winkel (a) berechnet werden
+
+        const angleRad = Math.asin(dx / 35);
+        const angleDeg = 90 - angleRad * 180 / Math.PI;
+        addLog(result, `(xEllbowRotation = ${angleDeg.toFixed(2)}° = ${angleRad.toFixed(4)} rad ) aus x von 223 und Ellbogen x226`);
+        addCalculation(result, {
+          type: "elbowRotationAFromX223",
+          input: {  
+            x223: row223.x_mm,
+            x226
+          },
+          output: {
+            angleRad, angleDeg
+          }
+        });
+      }
     }
 
     result.summary = {