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BRepFilletAPI_MakeFillet, ChFi3d_FilletShape, OpenCascadeInstance,
TopAbs_ShapeEnum, TopoDS_Edge, TopoDS_Face, TopoDS_Shape, TopoDS_Wire
} from "../../../bitbybit-dev-occt/bitbybit-dev-occt";
import * as Inputs from "../../api/inputs/inputs";
import { Base } from "../../api/inputs/base-inputs";
import { VectorHelperService } from "../../api/vector-helper.service";
import { IteratorService } from "./iterator.service";
import { ConverterService } from "./converter.service";
import { EntitiesService } from "./entities.service";
import { EdgesService } from "./edges.service";
import { ShapeGettersService } from "./shape-getters";
import { TransformsService } from "./transforms.service";
import { OperationsService } from "./operations.service";
export class FilletsService {
constructor(
private readonly occ: OpenCascadeInstance,
private readonly vecHelper: VectorHelperService,
private readonly iteratorService: IteratorService,
private readonly converterService: ConverterService,
private readonly entitiesService: EntitiesService,
private readonly transformsService: TransformsService,
private readonly shapeGettersService: ShapeGettersService,
private readonly edgesService: EdgesService,
private readonly operationsService: OperationsService,
) { }
filletEdges(inputs: Inputs.OCCT.FilletDto<TopoDS_Shape>) {
if (!inputs.indexes || (inputs.indexes.length && inputs.indexes.length === 0)) {
Iif (inputs.radius === undefined) {
throw (Error("Radius not defined"));
}
const mkFillet = new this.occ.BRepFilletAPI_MakeFillet(
inputs.shape, (this.occ.ChFi3d_FilletShape.ChFi3d_Rational as ChFi3d_FilletShape)
);
const anEdgeExplorer = new this.occ.TopExp_Explorer_2(
inputs.shape, (this.occ.TopAbs_ShapeEnum.TopAbs_EDGE as TopAbs_ShapeEnum),
(this.occ.TopAbs_ShapeEnum.TopAbs_SHAPE as TopAbs_ShapeEnum)
);
const edges: TopoDS_Edge[] = [];
while (anEdgeExplorer.More()) {
const anEdge = this.occ.TopoDS.Edge_1(anEdgeExplorer.Current());
edges.push(anEdge);
mkFillet.Add_2(inputs.radius, anEdge);
anEdgeExplorer.Next();
}
const result = mkFillet.Shape();
mkFillet.delete();
anEdgeExplorer.delete();
edges.forEach(e => e.delete());
return result;
} else Eif (inputs.indexes && inputs.indexes.length > 0) {
const mkFillet = new this.occ.BRepFilletAPI_MakeFillet(
inputs.shape, (this.occ.ChFi3d_FilletShape.ChFi3d_Rational as ChFi3d_FilletShape)
);
let foundEdges = 0;
let curFillet: TopoDS_Shape;
let radiusIndex = 0;
const inputIndexes = inputs.indexes;
this.iteratorService.forEachEdge(inputs.shape, (index, edge) => {
if (inputIndexes.includes(index)) {
let radius = inputs.radius;
if (inputs.radiusList) {
radius = inputs.radiusList[radiusIndex];
radiusIndex++;
}
if (radius === undefined) {
throw (Error("Radius not defined, or radiusList not correct length"));
}
mkFillet.Add_2(radius, edge);
foundEdges++;
}
});
Iif (foundEdges === 0) {
throw (new Error("Fillet Edges Not Found! Make sure you are looking at the object _before_ the Fillet is applied!"));
}
else {
curFillet = mkFillet.Shape();
}
mkFillet.delete();
const result = this.converterService.getActualTypeOfShape(curFillet);
curFillet.delete();
return result;
}
return undefined;
}
filletEdgesListOneRadius(inputs: Inputs.OCCT.FilletEdgesListOneRadiusDto<TopoDS_Shape, TopoDS_Edge>) {
Eif (inputs.edges && inputs.edges.length > 0) {
const mkFillet = new this.occ.BRepFilletAPI_MakeFillet(
inputs.shape, (this.occ.ChFi3d_FilletShape.ChFi3d_Rational as ChFi3d_FilletShape)
);
inputs.edges.forEach((edge) => {
mkFillet.Add_2(inputs.radius, edge);
});
const curFillet = mkFillet.Shape();
mkFillet.delete();
const result = this.converterService.getActualTypeOfShape(curFillet);
curFillet.delete();
return result;
}
return undefined;
}
filletEdgesList(inputs: Inputs.OCCT.FilletEdgesListDto<TopoDS_Shape, TopoDS_Edge>) {
Eif (inputs.edges && inputs.edges.length > 0 && inputs.radiusList && inputs.radiusList.length > 0 && inputs.edges.length === inputs.radiusList.length) {
const mkFillet = new this.occ.BRepFilletAPI_MakeFillet(
inputs.shape, (this.occ.ChFi3d_FilletShape.ChFi3d_Rational as ChFi3d_FilletShape)
);
inputs.edges.forEach((edge, index) => {
mkFillet.Add_2(inputs.radiusList[index], edge);
});
const curFillet = mkFillet.Shape();
mkFillet.delete();
const result = this.converterService.getActualTypeOfShape(curFillet);
curFillet.delete();
return result;
}
return undefined;
}
filletEdgeVariableRadius(inputs: Inputs.OCCT.FilletEdgeVariableRadiusDto<TopoDS_Shape, TopoDS_Edge>) {
if (inputs.paramsU && inputs.paramsU.length > 0 && inputs.radiusList && inputs.radiusList.length > 0 && inputs.paramsU.length === inputs.radiusList.length) {
const mkFillet = new this.occ.BRepFilletAPI_MakeFillet(
inputs.shape, (this.occ.ChFi3d_FilletShape.ChFi3d_Rational as ChFi3d_FilletShape)
);
this.assignVariableFilletToEdge(inputs, mkFillet);
const curFillet = mkFillet.Shape();
mkFillet.delete();
const result = this.converterService.getActualTypeOfShape(curFillet);
curFillet.delete();
return result;
}
return undefined;
}
filletEdgesSameVariableRadius(inputs: Inputs.OCCT.FilletEdgesSameVariableRadiusDto<TopoDS_Shape, TopoDS_Edge>) {
Eif (inputs.edges && inputs.edges.length > 0 &&
inputs.radiusList && inputs.radiusList.length > 0 &&
inputs.paramsU.length === inputs.radiusList.length) {
const mkFillet = new this.occ.BRepFilletAPI_MakeFillet(
inputs.shape, (this.occ.ChFi3d_FilletShape.ChFi3d_Rational as ChFi3d_FilletShape)
);
inputs.edges.forEach((edge) => {
this.assignVariableFilletToEdge({
edge, paramsU: inputs.paramsU, radiusList: inputs.radiusList, shape: inputs.shape,
}, mkFillet);
});
const curFillet = mkFillet.Shape();
mkFillet.delete();
const result = this.converterService.getActualTypeOfShape(curFillet);
curFillet.delete();
return result;
}
return undefined;
}
filletEdgesVariableRadius(inputs: Inputs.OCCT.FilletEdgesVariableRadiusDto<TopoDS_Shape, TopoDS_Edge>) {
if (inputs.edges && inputs.edges.length > 0 &&
inputs.radiusLists && inputs.radiusLists.length > 0 &&
inputs.paramsULists.length === inputs.radiusLists.length &&
inputs.paramsULists.length === inputs.edges.length &&
inputs.radiusLists.length === inputs.edges.length) {
const mkFillet = new this.occ.BRepFilletAPI_MakeFillet(
inputs.shape, (this.occ.ChFi3d_FilletShape.ChFi3d_Rational as ChFi3d_FilletShape)
);
inputs.edges.forEach((edge, index) => {
this.assignVariableFilletToEdge({
edge, paramsU: inputs.paramsULists[index], radiusList: inputs.radiusLists[index], shape: inputs.shape,
}, mkFillet);
});
const curFillet = mkFillet.Shape();
mkFillet.delete();
const result = this.converterService.getActualTypeOfShape(curFillet);
curFillet.delete();
return result;
}
return undefined;
}
private assignVariableFilletToEdge(inputs: Inputs.OCCT.FilletEdgeVariableRadiusDto<TopoDS_Shape, TopoDS_Edge>, mkFillet: BRepFilletAPI_MakeFillet) {
const array = new this.occ.TColgp_Array1OfPnt2d_2(1, inputs.paramsU.length);
inputs.paramsU.forEach((param, index) => {
array.SetValue(index + 1, this.entitiesService.gpPnt2d([param, inputs.radiusList[index]]));
});
mkFillet.Add_5(array, inputs.edge);
}
chamferEdges(inputs: Inputs.OCCT.ChamferDto<TopoDS_Shape>) {
if (!inputs.indexes || (inputs.indexes.length && inputs.indexes.length === 0)) {
Iif (inputs.distance === undefined) {
throw (Error("Distance is undefined"));
}
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
const anEdgeExplorer = new this.occ.TopExp_Explorer_2(
inputs.shape, (this.occ.TopAbs_ShapeEnum.TopAbs_EDGE as TopAbs_ShapeEnum),
(this.occ.TopAbs_ShapeEnum.TopAbs_SHAPE as TopAbs_ShapeEnum)
);
const edges: TopoDS_Edge[] = [];
while (anEdgeExplorer.More()) {
const anEdge = this.occ.TopoDS.Edge_1(anEdgeExplorer.Current());
edges.push(anEdge);
mkChamfer.Add_2(inputs.distance, anEdge);
anEdgeExplorer.Next();
}
const result = mkChamfer.Shape();
mkChamfer.delete();
anEdgeExplorer.delete();
edges.forEach(e => e.delete());
return result;
} else Eif (inputs.indexes && inputs.indexes.length > 0) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
let foundEdges = 0;
let curChamfer: TopoDS_Shape;
let distanceIndex = 0;
const inputIndexes = inputs.indexes;
this.iteratorService.forEachEdge(inputs.shape, (index, edge) => {
if (inputIndexes.includes(index)) {
let distance = inputs.distance;
if (inputs.distanceList) {
distance = inputs.distanceList[distanceIndex];
distanceIndex++;
}
Iif (distance === undefined) {
throw (Error("Distance not defined and/or distance list incorrect length"));
}
mkChamfer.Add_2(distance, edge);
foundEdges++;
}
});
Iif (foundEdges === 0) {
console.error("Chamfer Edges Not Found! Make sure you are looking at the object _before_ the Fillet is applied!");
curChamfer = inputs.shape;
}
else {
curChamfer = mkChamfer.Shape();
}
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
}
return undefined;
}
chamferEdgesList(inputs: Inputs.OCCT.ChamferEdgesListDto<TopoDS_Shape, TopoDS_Edge>) {
Eif (inputs.edges && inputs.edges.length > 0 && inputs.distanceList && inputs.distanceList.length > 0 && inputs.edges.length === inputs.distanceList.length) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
inputs.edges.forEach((edge, index) => {
const distance = inputs.distanceList[index];
Iif (distance === undefined) {
throw (Error("Distance is not defined"));
}
mkChamfer.Add_2(distance, edge);
});
const curChamfer = mkChamfer.Shape();
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
}
return undefined;
}
chamferEdgeTwoDistances(inputs: Inputs.OCCT.ChamferEdgeTwoDistancesDto<TopoDS_Shape, TopoDS_Edge, TopoDS_Face>) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
mkChamfer.Add_3(inputs.distance1, inputs.distance2, inputs.edge, inputs.face);
const curChamfer = mkChamfer.Shape();
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
}
chamferEdgesTwoDistances(inputs: Inputs.OCCT.ChamferEdgesTwoDistancesDto<TopoDS_Shape, TopoDS_Edge, TopoDS_Face>) {
if (inputs.edges && inputs.edges.length > 0 &&
inputs.edges.length === inputs.faces.length) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
inputs.edges.forEach((edge, index) => {
mkChamfer.Add_3(inputs.distance1, inputs.distance2, edge, inputs.faces[index]);
});
const curChamfer = mkChamfer.Shape();
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
} else E{
return undefined;
}
}
chamferEdgesTwoDistancesLists(inputs: Inputs.OCCT.ChamferEdgesTwoDistancesListsDto<TopoDS_Shape, TopoDS_Edge, TopoDS_Face>) {
if (inputs.edges && inputs.edges.length > 0 &&
inputs.faces && inputs.faces.length > 0 &&
inputs.distances1 && inputs.distances1.length > 0 &&
inputs.distances2 && inputs.distances2.length > 0 &&
inputs.edges.length === inputs.faces.length &&
inputs.edges.length === inputs.distances1.length &&
inputs.edges.length === inputs.distances2.length) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
inputs.edges.forEach((edge, index) => {
mkChamfer.Add_3(inputs.distances1[index], inputs.distances2[index], edge, inputs.faces[index]);
});
const curChamfer = mkChamfer.Shape();
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
} else E{
return undefined;
}
}
chamferEdgeDistAngle(inputs: Inputs.OCCT.ChamferEdgeDistAngleDto<TopoDS_Shape, TopoDS_Edge, TopoDS_Face>) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
const radians = this.vecHelper.degToRad(inputs.angle);
mkChamfer.AddDA(inputs.distance, radians, inputs.edge, inputs.face);
const curChamfer = mkChamfer.Shape();
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
}
chamferEdgesDistsAngles(inputs: Inputs.OCCT.ChamferEdgesDistsAnglesDto<TopoDS_Shape, TopoDS_Edge, TopoDS_Face>) {
if (inputs.edges && inputs.edges.length > 0 &&
inputs.faces && inputs.faces.length > 0 &&
inputs.distances && inputs.distances.length > 0 &&
inputs.angles && inputs.angles.length > 0 &&
inputs.edges.length === inputs.distances.length &&
inputs.edges.length === inputs.faces.length &&
inputs.edges.length === inputs.angles.length) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
inputs.edges.forEach((edge, index) => {
const radians = this.vecHelper.degToRad(inputs.angles[index]);
mkChamfer.AddDA(inputs.distances[index], radians, edge, inputs.faces[index]);
});
const curChamfer = mkChamfer.Shape();
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
} else E{
return undefined;
}
}
chamferEdgesDistAngle(inputs: Inputs.OCCT.ChamferEdgesDistAngleDto<TopoDS_Shape, TopoDS_Edge, TopoDS_Face>) {
if (inputs.edges && inputs.edges.length > 0 &&
inputs.faces && inputs.faces.length > 0 &&
inputs.edges.length === inputs.faces.length
) {
const mkChamfer = new this.occ.BRepFilletAPI_MakeChamfer(
inputs.shape
);
const radians = this.vecHelper.degToRad(inputs.angle);
inputs.edges.forEach((edge, index) => {
mkChamfer.AddDA(inputs.distance, radians, edge, inputs.faces[index]);
});
const curChamfer = mkChamfer.Shape();
mkChamfer.delete();
const result = this.converterService.getActualTypeOfShape(curChamfer);
curChamfer.delete();
return result;
} else E{
return undefined;
}
}
fillet3DWire(inputs: Inputs.OCCT.Fillet3DWireDto<TopoDS_Wire>) {
let useRadiusList = false;
if (inputs.radiusList && inputs.radiusList.length > 0 && inputs.indexes && inputs.indexes.length > 0) {
Iif (inputs.radiusList.length !== inputs.indexes.length) {
throw new Error("Radius list and indexes are not the same length");
} else {
useRadiusList = true;
}
}
// the goal is to make this fillet the same corner indices as fillet 2d command does with the same radius list.
// This makes this algorithm quite complex when counting which actual edge indices need to be rounded as it is based on
// extrusion, which creates specific index definitions.
// let adjustedRadiusList = [...inputs.radiusList];
// radius list does not need to be adjusted
// Closed shapes start corners differently on the connection of the first corner, so we need to readjust the edges
let wireTouse = this.edgesService.fixEdgeOrientationsAlongWire({ shape: inputs.shape });
if (useRadiusList && inputs.shape.Closed_1()) {
const edgesOfWire = this.edgesService.getEdgesAlongWire({ shape: inputs.shape });
const firstEdge = edgesOfWire.shift();
const adjustEdges = [...edgesOfWire, firstEdge];
wireTouse = this.converterService.combineEdgesAndWiresIntoAWire({ shapes: adjustEdges });
} else {
wireTouse = this.converterService.getActualTypeOfShape(inputs.shape.Reversed());
}
const extrusion = this.operationsService.extrude({ shape: wireTouse, direction: inputs.direction });
let adjustedIndexes = inputs.indexes;
if (useRadiusList) {
// So original indexes are based on the number of corners between edges. These corner indexes are used as an input, but extrusion creates 3D edges
// with different indexes, so we need to adjust the indexes to match the 3D edges.
// the original indexes are [3, 4, 5, 6, 7, 8, 9, 10, 11, ...]
// the order is [5, 8, 11, 14, 17, 20, 23, 26, 29, ...]
// this is needed because of the way edge indexes are made on such shapes
const filteredEnd = inputs.indexes.filter(i => i > 2);
const maxNr = Math.max(...filteredEnd);
const adjacentList = [5];
let lastNr = 5;
for (let i = 0; i < maxNr; i++) {
lastNr += 3;
adjacentList.push(lastNr);
}
adjustedIndexes = inputs.indexes.map((index) => {
if (inputs.shape.Closed_1()) {
if (index <= 2) {
return index;
} else {
return adjacentList[index - 3];
}
} else {
if (index === 1) {
return 2;
} else {
return adjacentList[index - 2];
}
}
});
}
const filletShape = this.filletEdges({ shape: extrusion, radius: inputs.radius, indexes: adjustedIndexes, radiusList: inputs.radiusList }) as TopoDS_Shape;
const faceEdges: TopoDS_Edge[] = [];
const faces = this.shapeGettersService.getFaces({ shape: filletShape });
faces.forEach((f, i) => {
// due to reversal of wire in the beginning this is stable index now
// also we need to translate these edges back along direction
const edgeToAdd = this.shapeGettersService.getEdges({ shape: f })[3];
faceEdges.push(edgeToAdd);
});
const res = this.converterService.combineEdgesAndWiresIntoAWire({ shapes: faceEdges });
const result = this.transformsService.translate({ shape: res, translation: inputs.direction.map(s => -s) as Base.Vector3 });
extrusion.delete();
filletShape.delete();
faces.forEach(f => f.delete());
faceEdges.forEach(e => e.delete());
return result;
}
} |