48 lines
2.4 KiB
TypeScript
48 lines
2.4 KiB
TypeScript
import * as THREE from 'three';
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import { describe, expect, it } from 'vitest';
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import { buildPier } from '../src/core/geometry';
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import type { TerrainGrid } from '../src/core/ground-model';
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import { buildPierScene } from '../src/view/scene';
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import { loadP1 } from './helpers';
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const model = buildPier(loadP1());
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const terrain: TerrainGrid = { origin: [259815.676, 179088.094], step: 5, nx: 2, ny: 2, z: [30, 31, 32, 33] };
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describe('지반 표시 (지형 모델이 없을 때)', () => {
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it('draws a thin square pad at the pier 지반고, side = coping length + 2 m', () => {
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const scene = buildPierScene(model);
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const mesh = scene.parts.ground.children[0] as THREE.Mesh;
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mesh.updateMatrixWorld(true);
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const pos = mesh.geometry.getAttribute('position');
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const pts: THREE.Vector3[] = [];
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for (let i = 0; i < pos.count; i++) pts.push(new THREE.Vector3().fromBufferAttribute(pos, i).applyMatrix4(mesh.matrixWorld));
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const top = Math.max(...pts.map((p) => p.y));
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const corners = pts.filter((p) => Math.abs(p.y - top) < 1e-6);
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// Four corners of the top face, with a distinct set of positions.
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const unique = corners.filter((p, i) => corners.findIndex((q) => q.distanceTo(p) < 1e-6) === i);
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expect(unique).toHaveLength(4);
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const side = model.copingL + 2;
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const edges = unique.flatMap((a, i) => unique.slice(i + 1).map((b) => a.distanceTo(b))).sort((a, b) => a - b);
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// Four sides of length `side`, two diagonals of length side·√2.
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for (const e of edges.slice(0, 4)) expect(e).toBeCloseTo(side, 3);
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for (const e of edges.slice(4)) expect(e).toBeCloseTo(side * Math.SQRT2, 3);
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// Thin: a pad, not a solid block. Centred on the ground EL.
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const box = new THREE.Box3().setFromObject(scene.parts.ground);
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expect(box.getSize(new THREE.Vector3()).y).toBeLessThan(0.1);
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expect(box.getCenter(new THREE.Vector3()).y).toBeCloseTo(model.groundEl, 2);
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});
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it('keeps the ground group out of the pier size', () => {
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const scene = buildPierScene(model);
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expect(scene.size).toBeLessThan(60);
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});
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it('does not draw the line when the terrain grid is present (the terrain replaces it)', () => {
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const scene = buildPierScene(model, terrain);
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expect(scene.parts.ground.children.length).toBe(1);
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const mesh = scene.parts.ground.children[0] as THREE.Mesh;
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expect(mesh.geometry.type).toBe('BufferGeometry');
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});
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});
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