added bounding-box to mesh-builder

src/mol-geo/mesh/builder/bounding-box.ts

+/**
+ * Copyright (c) 2018 mol* contributors, licensed under MIT, See LICENSE file for more info.
+ *
+ * @author Alexander Rose <alexander.rose@weirdbyte.de>
+ */
+
+import { Vec3 } from 'mol-math/linear-algebra';
+import { Box3D } from 'mol-math/geometry';
+import { MeshBuilder } from '../mesh-builder';
+import { CylinderProps } from '../../primitive/cylinder';
+import { addCylinder } from './cylinder';
+import { addSphere } from './sphere';
+
+const tmpStart = Vec3.zero()
+const tmpEnd = Vec3.zero()
+const cylinderProps: CylinderProps = {}
+
+export function addBoundingBox(builder: MeshBuilder, box: Box3D, radius: number, detail: number, radialSegments: number) {
+    const { min, max } = box
+
+    cylinderProps.radiusTop = radius
+    cylinderProps.radiusBottom = radius
+    cylinderProps.radialSegments = radialSegments
+
+    Vec3.set(tmpStart, max[0], max[1], max[2])
+    addSphere(builder, tmpStart, radius, detail)
+    Vec3.set(tmpEnd, max[0], max[1], min[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+    Vec3.set(tmpEnd, max[0], min[1], max[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+    Vec3.set(tmpEnd, min[0], max[1], max[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+
+    Vec3.set(tmpStart, min[0], min[1], min[2])
+    addSphere(builder, tmpStart, radius, detail)
+    Vec3.set(tmpEnd, min[0], min[1], max[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+    Vec3.set(tmpEnd, min[0], max[1], min[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+    Vec3.set(tmpEnd, max[0], min[1], min[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+
+    Vec3.set(tmpStart, max[0], min[1], min[2])
+    addSphere(builder, tmpStart, radius, detail)
+    Vec3.set(tmpEnd, max[0], min[1], max[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+    Vec3.set(tmpEnd, max[0], max[1], min[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+
+    Vec3.set(tmpStart, min[0], min[1], max[2])
+    addSphere(builder, tmpStart, radius, detail)
+    Vec3.set(tmpEnd, min[0], max[1], max[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+    Vec3.set(tmpEnd, max[0], min[1], max[2])
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+
+    Vec3.set(tmpStart, min[0], max[1], min[2])
+    addSphere(builder, tmpStart, radius, detail)
+    Vec3.set(tmpEnd, max[0], max[1], min[2])
+    addSphere(builder, tmpEnd, radius, detail)
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+    Vec3.set(tmpEnd, min[0], max[1], max[2])
+    addSphere(builder, tmpEnd, radius, detail)
+    addCylinder(builder, tmpStart, tmpEnd, 1, cylinderProps)
+}
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