- 교대 형상(src/core/abut, 3D 장면, 목록·카메라·맞춤)과 교대 입력 패널 추가 - 교각 받침 기준 카드 제거, 솔플레이트 규칙을 교각별 입력으로 변경 - 받침 ELEVATION·솔플레이트 TABLE을 모델값으로 연결 - 교대 입력값 카드: 형식 행에 시점·종점 표시, 제목을 "A1 입력값 [입력]"으로 변경 - 테스트 614건 통과, 타입 검사 통과 Co-Authored-By: Claude Haiku 5.5 <noreply@anthropic.com>
29 lines
1.0 KiB
TypeScript
29 lines
1.0 KiB
TypeScript
import * as THREE from 'three';
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/**
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* Camera that contains a sphere (2026-11-03): keeps the view direction of `position → target`, moves the target to the
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* sphere centre, and backs off until the sphere fits both the vertical and the horizontal field of view.
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*/
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export function fitCamera(
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position: THREE.Vector3,
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target: THREE.Vector3,
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sphere: THREE.Sphere,
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fovDeg: number,
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aspect: number,
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margin = 1.1,
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): { position: THREE.Vector3; target: THREE.Vector3 } {
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const halfV = THREE.MathUtils.degToRad(fovDeg / 2);
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// The narrower of the two half-angles decides how far back the camera must stand.
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const halfH = Math.atan(Math.tan(halfV) * aspect);
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const halfFov = Math.min(halfV, halfH);
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const fit = (sphere.radius / Math.sin(halfFov)) * margin;
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const dir = position.clone().sub(target);
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const current = dir.length();
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const dist = Math.max(current, fit);
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dir.normalize();
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return {
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position: sphere.center.clone().add(dir.multiplyScalar(dist)),
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target: sphere.center.clone(),
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};
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}
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