SecBuildHにプロパティと初期化用メソッドを追加

src/sec/build-h.test.ts

@@ -1,55 +1,69 @@
 import { SecBuildH } from "./build-h";
 import { SecPropertyType } from "../constant";
 
+const H = new SecBuildH();
+H.a = 1.2;
+H.b = 0.4;
+H.t1 = 0.019;
+H.t2 = 0.025;
+
+test("SecBuildH.setDimensions", () => {
+  const secBuildH = new SecBuildH();
+  secBuildH.setDimensions(H.a, H.b, H.t1, H.t2);
+  expect(secBuildH.a).toBe(H.a);
+  expect(secBuildH.b).toBe(H.b);
+  expect(secBuildH.t1).toBe(H.t1);
+  expect(secBuildH.t2).toBe(H.t2);
+  expect(secBuildH.name).toBe("BH-1200x400x19x25");
+});
+
 test("ビルドHのA", () => {
-  const H = 1.2;
-  const B = 0.4;
-  const T1 = 0.019;
-  const T2 = 0.025;
   const A = 4.185e-2;
-  expect(SecBuildH.area(H, B, T1, T2)).toBe(A);
-  expect(SecBuildH.property(SecPropertyType.Area, H, B, T1, T2)).toBe(A);
+  expect(SecBuildH.area(H.a, H.b, H.t1, H.t2)).toBe(A);
+  expect(SecBuildH.property(SecPropertyType.Area, H.a, H.b, H.t1, H.t2)).toBe(
+    A
+  );
 });
 
 test("ビルドHの単位質量", () => {
-  const H = 1.2;
-  const B = 0.4;
-  const T1 = 0.019;
-  const T2 = 0.025;
   const M = 328.5225;
-  expect(SecBuildH.property(SecPropertyType.MassPerMetre, H, B, T1, T2)).toBe(
-    M
-  );
+  expect(
+    SecBuildH.property(SecPropertyType.MassPerMetre, H.a, H.b, H.t1, H.t2)
+  ).toBe(M);
 });
 
 test("ビルドHのIy", () => {
-  const H = 1.2;
-  const B = 0.4;
-  const T1 = 0.019;
-  const T2 = 0.025;
   const IY = 9.31221875e-3;
   const NUM_DIGITS = 17;
-  expect(SecBuildH.secondMomentOfAreaY(H, B, T1, T2)).toBeCloseTo(
+  expect(SecBuildH.secondMomentOfAreaY(H.a, H.b, H.t1, H.t2)).toBeCloseTo(
     IY,
     NUM_DIGITS
   );
   expect(
-    SecBuildH.property(SecPropertyType.SecondMomentOfAreaY, H, B, T1, T2)
+    SecBuildH.property(
+      SecPropertyType.SecondMomentOfAreaY,
+      H.a,
+      H.b,
+      H.t1,
+      H.t2
+    )
   ).toBeCloseTo(IY, NUM_DIGITS);
 });
 
 test("ビルドHのIz", () => {
-  const H = 1.2;
-  const B = 0.4;
-  const T1 = 0.019;
-  const T2 = 0.025;
   const IZ = 2.673239875e-4;
   const NUM_DIGITS = 18;
-  expect(SecBuildH.secondMomentOfAreaZ(H, B, T1, T2)).toBeCloseTo(
+  expect(SecBuildH.secondMomentOfAreaZ(H.a, H.b, H.t1, H.t2)).toBeCloseTo(
     IZ,
     NUM_DIGITS
   );
   expect(
-    SecBuildH.property(SecPropertyType.SecondMomentOfAreaZ, H, B, T1, T2)
+    SecBuildH.property(
+      SecPropertyType.SecondMomentOfAreaZ,
+      H.a,
+      H.b,
+      H.t1,
+      H.t2
+    )
   ).toBeCloseTo(IZ, NUM_DIGITS);
 });

src/sec/build-h.ts

@@ -1,9 +1,41 @@
 import { SecPropertyType } from "../constant";
 import { SecSteel } from "./steel";
+import { Unit } from "../unit";
 /**
  * 組立H形鋼
  */
 export class SecBuildH {
+  /** 形状名 */
+  name: string = "";
+  /** 成 A */
+  a: number = 0.0;
+  /** フランジ幅 B */
+  b: number = 0.0;
+  /** ウェブ厚 t1 */
+  t1: number = 0.0;
+  /** フランジ厚 t2 */
+  t2: number = 0.0;
+
+  /**
+   * 寸法により初期化し、nameも設定する
+   * @param a 成A
+   * @param b フランジ幅 B
+   * @param t1 ウェブ厚 t1
+   * @param t2 フランジ厚 t2
+   */
+  setDimensions(a: number, b: number, t1: number, t2: number) {
+    this.a = a;
+    this.b = b;
+    this.t1 = t1;
+    this.t2 = t2;
+    const scale: number = Unit.output(1.0, "mm");
+    a *= scale;
+    b *= scale;
+    t1 *= scale;
+    t2 *= scale;
+    this.name = `BH-${a}x${b}x${t1}x${t2}`;
+  }
+
   /**
    * 組立H形鋼の断面積
    * @param a 成 A