電界ベクトルも仮想関数化

CaseyNelson314 · Jan 16, 2024 · d993fab · d993fab
1 parent 0c7627a
commit d993fab
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Showing 4 changed files with 122 additions and 24 deletions.
diff --git a/app/script/charge.ts b/app/script/charge.ts
@@ -54,6 +54,9 @@ export abstract class Charge {
     /// @brief 指定座標における、この電荷からの電界ベクトルを返す
     abstract electricFieldVector: (position: THREE.Vector3) => THREE.Vector3;
 
+    /// @brief 電界ベクトルの描画開始座標の配列を返す
+    abstract electricFieldVectorBeginPositions: () => { vector: THREE.Vector3, opacity: number }[];
+
     /// @brief 任意の座標における電荷との距離^2を返す
     abstract distanceSqFrom: (position: THREE.Vector3) => number;
 
@@ -102,6 +105,39 @@ export class PointCharge extends Charge {
 
     }
 
+    /// @brief 電界ベクトルの描画開始座標の配列を返す
+    override electricFieldVectorBeginPositions = () => {
+        const result: { vector: THREE.Vector3, opacity: number }[] = [];
+
+        const count = 4;
+
+        for (let x = -count; x <= count; x++) {
+            for (let y = -count; y <= count; y++) {
+                for (let z = -count; z <= count; z++) {
+
+                    const length_sq = x ** 2 + y ** 2 + z ** 2;
+                    if (length_sq > count ** 2) {
+                        continue;
+                    }
+
+                    if (x === 0 && y === 0 && z === 0) {
+                        continue;
+                    }
+
+                    const opacity = Math.abs(1 - length_sq / (count ** 2));
+
+                    result.push({
+                        vector: new THREE.Vector3(20 * x, 20 * y, 20 * z),
+                        opacity: opacity
+                    });
+
+                }
+            }
+        }
+
+        return result;
+    }
+
     /// @brief 任意の座標における電荷との距離を返す
     /// @param position 観測点の座標
     override distanceSqFrom = (position: THREE.Vector3) => {
@@ -162,6 +198,15 @@ export class LineCharge extends Charge {
 
     }
 
+
+    /// @brief 電界ベクトルの描画開始座標の配列を返す
+    override electricFieldVectorBeginPositions = () => {
+
+        // TODO
+        return new Array<{ vector: THREE.Vector3, opacity: number }>();
+
+    }
+
     /// @brief 任意の座標における電荷との距離を返す
     /// @param position 観測点の座標
     override distanceSqFrom = (position: THREE.Vector3) => {
@@ -264,6 +309,39 @@ export class SphereSurfaceCharge extends Charge {
         }
 
     }
+
+    /// @brief 電界ベクトルの描画開始座標の配列を返す
+    override electricFieldVectorBeginPositions = () => {
+        const result: { vector: THREE.Vector3, opacity: number }[] = [];
+
+        const count = 4;
+
+        for (let x = -count; x <= count; x++) {
+            for (let y = -count; y <= count; y++) {
+                for (let z = -count; z <= count; z++) {
+
+                    const length_sq = x ** 2 + y ** 2 + z ** 2;
+                    if (length_sq > count ** 2) {
+                        continue;
+                    }
+
+                    if (x === 0 && y === 0 && z === 0) {
+                        continue;
+                    }
+
+                    const opacity = Math.abs(1 - length_sq / (count ** 2));
+
+                    result.push({
+                        vector: new THREE.Vector3(20 * x, 20 * y, 20 * z),
+                        opacity: opacity
+                    });
+
+                }
+            }
+        }
+
+        return result;
+    }
 
     /// @brief 任意の座標における電荷との距離を返す(外周との距離)
     /// @param position 観測点の座標
@@ -345,6 +423,41 @@ export class SphereVolumeCharge extends Charge
 
     }
 
+
+    /// @brief 電界ベクトルの描画開始座標の配列を返す
+    override electricFieldVectorBeginPositions = () => {
+        const result: { vector: THREE.Vector3, opacity: number }[] = [];
+
+        const count = 4;
+
+        for (let x = -count; x <= count; x++) {
+            for (let y = -count; y <= count; y++) {
+                for (let z = -count; z <= count; z++) {
+
+                    const length_sq = x ** 2 + y ** 2 + z ** 2;
+                    if (length_sq > count ** 2) {
+                        continue;
+                    }
+
+                    if (x === 0 && y === 0 && z === 0) {
+                        continue;
+                    }
+
+                    const opacity = Math.abs(1 - length_sq / (count ** 2));
+
+                    result.push({
+                        vector: new THREE.Vector3(20 * x, 20 * y, 20 * z),
+                        opacity: opacity
+                    });
+
+                }
+            }
+        }
+
+        return result;
+    }
+
+
     /// @brief 任意の座標における電荷との距離を返す(外周との距離)
     /// @param position 観測点の座標
     override distanceSqFrom = (position: THREE.Vector3) => {

diff --git a/app/script/field3d.ts b/app/script/field3d.ts
@@ -177,31 +177,16 @@ class ElectricFieldVectors3D extends THREE.Object3D {
 
         }
 
-        const count = 4;
-        for (let charge of this.charges) {
+        for (const charge of this.charges) {
 
             if (charge.getChargeType() === ChargeType.Neutral) {
                 continue;
             }
 
-            for (let x = -count; x <= count; x++) {
-                for (let y = -count; y <= count; y++) {
-                    for (let z = -count; z <= count; z++) {
-
-                        const length_sq = x ** 2 + y ** 2 + z ** 2;
-                        if (length_sq > count ** 2) {
-                            continue;
-                        }
-
-                        if (x === 0 && y === 0 && z === 0) {
-                            continue;
-                        }
-
-                        const opacity = Math.abs(1 - length_sq / (count ** 2));
-                        AddArrow(new THREE.Vector3(x * 20, y * 20, z * 20).add(charge.position), opacity);
-
-                    }
-                }
+            const points = charge.electricFieldVectorBeginPositions();
+            for (const point of points)
+            {
+                AddArrow(point.vector.add(charge.position), point.opacity);
             }
 
         }

diff --git a/app/script/main.ts b/app/script/main.ts
@@ -68,9 +68,9 @@ const start = () => {
             lineDensity.value = lineCharge.lineDensity.toFixed(3);
 
             // 線電荷は長さを変更できる
-            const lineLength = document.getElementById("charge_length") as HTMLInputElement;
-            lineLength.labels![0]!.style.display = "block";
-            lineLength.value = lineCharge.length.toFixed(3);
+            // const lineLength = document.getElementById("charge_length") as HTMLInputElement;
+            // lineLength.labels![0]!.style.display = "block";
+            // lineLength.value = lineCharge.length.toFixed(3);
         }
         else if (charge instanceof SphereSurfaceCharge) {
             const sphereSurfaceCharge = charge as SphereSurfaceCharge;

diff --git a/app/style/control.css b/app/style/control.css
@@ -69,7 +69,7 @@ input[type="number"] {
   width: 80px;
   text-align: right;
   padding-right: 10px;
-  font-size: 20px;
+  font-size: 17px;
   color: #e3e3e3;
   background-color: #38393b;
   border: 2px solid #4f4f4f;