Press n or j to go to the next uncovered block, b, p or k for the previous block.
| 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 | 4x 4x 1x 1x 1x 4x 4x 4x 1x 3x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 1x 4x 4x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x 2x | 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";
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 });
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;
}
/** 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.${fileType}`, fileText as string, true, true, true);
// Choose the correct OpenCascade file parsers to read the CAD file
let reader: STEPControl_Reader_1 | IGESControl_Reader_1;
if (fileType === "step") {
reader = new this.occ.STEPControl_Reader_1();
} else Eif (fileType === "iges") {
reader = new this.occ.IGESControl_Reader_1();
} else {
console.error("opencascade can't parse this extension! (yet)");
return undefined;
}
const readResult = reader.ReadFile(`file.${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;
Iif (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}`);
Iif (adjustedShape) {
stepShape.delete();
stepShape = adjustedShape;
}
return stepShape;
} else E{
console.error("Something in OCCT went wrong trying to read " + fileName);
}
return undefined;
}
}
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