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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 | 11x 11x 5x 5x 2x 3x 3x 11x 11x 11x 5x 6x 11x 11x 11x 11x 11x 11x 11x 11x 11x 11x 5x 11x 11x 6x 6x 6x 1x 1x 1x 6x 6x 6x 1x 5x 6x 6x 6x 6x 6x 6x 6x 6x 1x 6x 6x 6x 6x 8x 8x 8x 8x 7x 1x 8x 8x 7x 1x 1x 1x 7x 7x 7x 7x 7x 7x 7x 2x 2x 2x 7x 7x 2x 2x 7x 14x 1x 1x | import { IGESControl_Reader_1, OpenCascadeInstance, STEPControl_Reader_1, STEPControl_StepModelType, TopoDS_Shape } from "../../bitbybit-dev-occt/bitbybit-dev-occt";
import { OccHelper } from "../occ-helper";
import * as Inputs from "../api/inputs/inputs";
import { IO } from "@bitbybit-dev/base/lib/api/inputs";
export class OCCTIO {
constructor(
private readonly occ: OpenCascadeInstance,
private readonly och: OccHelper
) {
}
saveShapeSTEP(inputs: Inputs.OCCT.SaveStepDto<TopoDS_Shape>): string {
const shapeToUse = inputs.shape;
let adjustedShape;
if (inputs.adjustYtoZ) {
const rotatedShape = this.och.transformsService.rotate({ shape: inputs.shape, axis: [1, 0, 0], angle: -90 });
if (inputs.fromRightHanded) {
adjustedShape = rotatedShape;
} else {
adjustedShape = this.och.transformsService.mirrorAlongNormal(
{ shape: rotatedShape, origin: [0, 0, 0], normal: [0, 0, 1] }
);
rotatedShape.delete();
}
}
const fileName = "x";
const writer = new this.occ.STEPControl_Writer_1();
let transferShape;
if (adjustedShape) {
transferShape = adjustedShape;
} else {
transferShape = shapeToUse;
}
// Convert to a .STEP File
const messageProgress = new this.occ.Message_ProgressRange_1();
let transferResult;
try {
transferResult = writer.Transfer(
transferShape,
(this.occ.STEPControl_StepModelType.STEPControl_AsIs as STEPControl_StepModelType),
true,
messageProgress
);
} catch (ex) {
throw (new Error("Failed when calling writer.Transfer."));
}
let result: string;
if (transferResult === this.occ.IFSelect_ReturnStatus.IFSelect_RetDone) {
// Write the STEP File to the virtual Emscripten Filesystem Temporarily
const writeResult = writer.Write(fileName);
if (writeResult === this.occ.IFSelect_ReturnStatus.IFSelect_RetDone) {
// Read the STEP File from the filesystem and clean up
const stepFileText = this.occ.FS.readFile("/" + fileName, { encoding: "utf8" });
this.occ.FS.unlink("/" + fileName);
// Return the contents of the STEP File
result = stepFileText;
} else E{
throw (new Error("Failed when writing step file."));
}
} else E{
throw (new Error("Failed when transfering to step writer."));
}
if (adjustedShape) {
adjustedShape.delete();
}
messageProgress.delete();
return result;
}
saveShapeStl(inputs: Inputs.OCCT.SaveStlDto<TopoDS_Shape>): string {
const shapeToUse = inputs.shape;
// This could be made optional...
// Clean cached triangulation data for the shape.
// This allows to get lower res models out of higher res that was once computed and cached.
this.occ.BRepTools.Clean(shapeToUse, true);
let adjustedShape;
if (inputs.adjustYtoZ) {
const rotatedShape = this.och.transformsService.rotate({ shape: inputs.shape, axis: [1, 0, 0], angle: -90 });
adjustedShape = this.och.transformsService.mirrorAlongNormal(
{ shape: rotatedShape, origin: [0, 0, 0], normal: [0, 0, 1] }
);
rotatedShape.delete();
}
const fileName = "x";
const writer = new this.occ.StlAPI_Writer();
let transferShape;
if (adjustedShape) {
transferShape = adjustedShape;
} else {
transferShape = shapeToUse;
}
const messageProgress = new this.occ.Message_ProgressRange_1();
let result: string;
const incrementalMeshBuilder = new this.occ.BRepMesh_IncrementalMesh_2(transferShape, inputs.precision, false, 0.5, false);
// Write the STL File to the virtual Emscripten Filesystem Temporarily
const writeResult = writer.Write(transferShape, fileName, messageProgress);
if (writeResult) {
// Read the STL File from the filesystem and clean up
const stlFile = this.occ.FS.readFile("/" + fileName, { encoding: "utf8" });
this.occ.FS.unlink("/" + fileName);
// Return the contents of the STL File
result = stlFile;
} else E{
throw (new Error("Failed when writing stl file."));
}
if (adjustedShape) {
adjustedShape.delete();
}
messageProgress.delete();
Eif (incrementalMeshBuilder) {
incrementalMeshBuilder.Delete();
}
return result;
}
/** This function parses the ASCII contents of a `.STEP` or `.IGES`
* File as a Shape into the `externalShapes` dictionary.
*/
loadSTEPorIGES(inputs: Inputs.OCCT.LoadStepOrIgesDto): TopoDS_Shape | undefined {
const fileName = inputs.fileName;
const fileText = inputs.filetext;
const fileType = (() => {
switch (fileName.toLowerCase().split(".").pop()) {
case "step":
case "stp":
return "step";
case "iges":
case "igs":
return "iges";
default:
return undefined;
}
})();
// Writes the uploaded file to Emscripten's Virtual Filesystem
this.occ.FS.createDataFile("/", `file.${fileType}`, fileText as string, true, true, true);
// Choose the correct OpenCascade file parsers to read the CAD file
let reader: STEPControl_Reader_1 | IGESControl_Reader_1;
if (fileType === "step") {
reader = new this.occ.STEPControl_Reader_1();
} else Iif (fileType === "iges") {
reader = new this.occ.IGESControl_Reader_1();
} else {
console.error("opencascade can't parse this extension! (yet)");
return undefined;
}
const readResult = reader.ReadFile(`file.${fileType}`); // Read the file
if (readResult === this.occ.IFSelect_ReturnStatus.IFSelect_RetDone) {
// Translate all transferable roots to OpenCascade
const messageProgress = new this.occ.Message_ProgressRange_1();
reader.TransferRoots(
messageProgress
);
messageProgress.delete();
let stepShape = reader.OneShape();
let adjustedShape;
if (inputs.adjustZtoY) {
const mirroredShape = this.och.transformsService.mirrorAlongNormal(
{ shape: stepShape, origin: [0, 0, 0], normal: [0, 0, 1] }
);
adjustedShape = this.och.transformsService.rotate({ shape: mirroredShape, axis: [1, 0, 0], angle: 90 });
mirroredShape.delete();
}
// Out with the old, in with the new!
// Remove the file when we're done (otherwise we run into errors on reupload)
this.occ.FS.unlink(`/file.${fileType}`);
if (adjustedShape) {
stepShape.delete();
stepShape = adjustedShape;
}
return stepShape;
} else E{
console.error("Something in OCCT went wrong trying to read " + fileName);
}
return undefined;
}
// TODO WIP! This function parses the contents of a `.STEP` file as an assembly
// and returns the assembly structure. It's not finished yet and needs a lot of work.
// private parseStepAssembly(inputs: Inputs.OCCT.LoadStepOrIgesDto) {
// const fileName = inputs.fileName;
// const fileText = inputs.filetext;
// // Write file to virtual filesystem
// this.occ.FS.createDataFile("/", "step_file.step", fileText as string, true, true, true);
// try {
// // Create XCAF application and document
// const app = this.occ.XCAFApp_Application.GetApplication();
// const format = new this.occ.TCollection_ExtendedString_2("MDTV-XCAF", true);
// const docHandle = new this.occ.Handle_TDocStd_Document_1();
// app.get().NewDocument_2(format, docHandle);
// const doc = docHandle.get();
// // Use STEPCAFControl_Reader to read with full XCAF support
// const reader = new this.occ.STEPCAFControl_Reader_1();
// reader.SetColorMode(true); // Enable color reading
// reader.SetNameMode(true); // Enable name reading
// reader.SetLayerMode(true); // Enable layer reading
// reader.SetPropsMode(true); // Enable properties reading
// // Read the file
// const readResult = reader.ReadFile("step_file.step");
// if (readResult === this.occ.IFSelect_ReturnStatus.IFSelect_RetDone) {
// // Transfer to XCAF document
// const messageProgress = new this.occ.Message_ProgressRange_1();
// const transferResult = reader.Transfer_1(docHandle, messageProgress);
// messageProgress.delete();
// if (transferResult) {
// // Parse using the improved assembly parser
// // const assemblyStructure = this.ioAssembly.parseXCAFDocument(doc);
// // Clean up
// reader.delete();
// format.delete();
// docHandle.delete();
// this.occ.FS.unlink("/step_file.step");
// return {};
// } else {
// throw new Error("Failed to transfer STEP data to XCAF document");
// }
// } else {
// throw new Error("Failed to read STEP file");
// }
// } catch (error) {
// this.occ.FS.unlink("/step_file.step");
// throw error;
// }
// }
shapeToDxfPaths(inputs: Inputs.OCCT.ShapeToDxfPathsDto<TopoDS_Shape>): IO.DxfPathDto[] {
return this.och.dxfService.shapeToDxfPaths(inputs);
}
dxfPathsWithLayer(inputs: Inputs.OCCT.DxfPathsWithLayerDto): IO.DxfPathsPartDto {
return this.och.dxfService.dxfPathsWithLayer(inputs);
}
dxfCreate(inputs: Inputs.OCCT.DxfPathsPartsListDto): string {
return this.och.dxfService.dxfCreate(inputs);
}
}
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