All files / lib/services/base transforms.service.ts

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import { OpenCascadeInstance, TopoDS_Shape } from "../../../bitbybit-dev-occt/bitbybit-dev-occt";
import * as Inputs from "../../api/inputs/inputs";
import { VectorHelperService } from "../../api/vector-helper.service";
import { ConverterService } from "./converter.service";
import { EntitiesService } from "./entities.service";
 
export class TransformsService {
 
    constructor(
        private readonly occ: OpenCascadeInstance,
        private readonly converterService: ConverterService,
        private readonly entitiesService: EntitiesService,
        private readonly vecHelper: VectorHelperService
    ) { }
 
    alignAndTranslate(inputs: Inputs.OCCT.AlignAndTranslateDto<TopoDS_Shape>): TopoDS_Shape {
        const alignedShape = this.align(
            {
                shape: inputs.shape,
                fromOrigin: [0, 0, 0],
                fromDirection: [0, 1, 0],
                toOrigin: [0, 0, 0],
                toDirection: inputs.direction
            }
        );
        const translated = this.translate(
            {
                shape: alignedShape,
                translation: inputs.center
            }
        );
        alignedShape.delete();
        return translated;
    }
 
 
    translate(inputs: Inputs.OCCT.TranslateDto<TopoDS_Shape>) {
        const transformation = new this.occ.gp_Trsf_1();
        const gpVec = new this.occ.gp_Vec_4(inputs.translation[0], inputs.translation[1], inputs.translation[2]);
        transformation.SetTranslation_1(gpVec);
        const transf = new this.occ.BRepBuilderAPI_Transform_2(inputs.shape, transformation, true);
        const s = transf.Shape();
        const shp = this.converterService.getActualTypeOfShape(s);
        s.delete();
        transformation.delete();
        transf.delete();
        gpVec.delete();
        return shp;
    }
 
    mirror(inputs: Inputs.OCCT.MirrorDto<TopoDS_Shape>) {
        const transformation = new this.occ.gp_Trsf_1();
        const ax1 = this.entitiesService.gpAx1(inputs.origin, inputs.direction);
        transformation.SetMirror_2(ax1);
        const transformed = new this.occ.BRepBuilderAPI_Transform_2(inputs.shape, transformation, true);
        const transformedShape = transformed.Shape();
        const shp = this.converterService.getActualTypeOfShape(transformedShape);
 
        transformedShape.delete();
        transformed.delete();
        transformation.delete();
        ax1.delete();
 
        return shp;
    }
 
    mirrorAlongNormal(inputs: Inputs.OCCT.MirrorAlongNormalDto<TopoDS_Shape>) {
        const transformation = new this.occ.gp_Trsf_1();
        const ax = this.entitiesService.gpAx2(inputs.origin, inputs.normal);
        transformation.SetMirror_3(ax);
        const transformed = new this.occ.BRepBuilderAPI_Transform_2(inputs.shape, transformation, true);
        const transformedShape = transformed.Shape();
        const shp = this.converterService.getActualTypeOfShape(transformedShape);
        ax.delete();
        transformedShape.delete();
        transformed.delete();
        transformation.delete();
        return shp;
    }
 
    rotate(inputs: Inputs.OCCT.RotateDto<TopoDS_Shape>) {
        let rotated;
        if (inputs.angle === 0) {
            rotated = inputs.shape;
        } else {
            const transformation = new this.occ.gp_Trsf_1();
            const gpVec = new this.occ.gp_Vec_4(inputs.axis[0], inputs.axis[1], inputs.axis[2]);
            const dir = new this.occ.gp_Dir_4(inputs.axis[0], inputs.axis[1], inputs.axis[2]);
            const pt1 = new this.occ.gp_Pnt_3(0, 0, 0);
            const ax = new this.occ.gp_Ax1_2(pt1, dir);
            transformation.SetRotation_1(ax, this.vecHelper.degToRad(inputs.angle));
            const transf = new this.occ.BRepBuilderAPI_Transform_2(inputs.shape, transformation, true);
            const s = transf.Shape();
            const shp = this.converterService.getActualTypeOfShape(s);
            s.delete();
            gpVec.delete();
            dir.delete();
            pt1.delete();
            ax.delete();
            transf.delete();
            transformation.delete();
            return shp;
        }
        const actualShape = this.converterService.getActualTypeOfShape(rotated);
        Iif (inputs.angle !== 0) {
            rotated.delete();
        }
        return actualShape;
    }
 
    align(inputs: Inputs.OCCT.AlignDto<TopoDS_Shape>) {
        const transformation = new this.occ.gp_Trsf_1();
 
        const ax1 = this.entitiesService.gpAx3(inputs.fromOrigin, inputs.fromDirection);
        const ax2 = this.entitiesService.gpAx3(inputs.toOrigin, inputs.toDirection);
 
        transformation.SetDisplacement(
            ax1,
            ax2,
        );
        const translation = new this.occ.TopLoc_Location_2(transformation);
        const moved = inputs.shape.Moved(translation, false);
 
        transformation.delete();
        ax1.delete();
        ax2.delete();
        const shp = this.converterService.getActualTypeOfShape(moved);
        moved.delete();
        return shp;
    }
 
 
}