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 | 78x 78x 78x 78x 78x 76x 75x 75x 75x 75x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 78x 2x 2x 2x 2x 2x | import { CellType } from 'vtk.js/Sources/Common/DataModel/CellTypes/Constants';
import vtkOBJReader from 'vtk.js/Sources/IO/Misc/OBJReader';
/**
* Get the correct point ID from a cell id
* @param {Array} cellPtsIds
* @param {CellType} type
* @param {Number} idx
* @returns {Object} Contains three point's id of cells as 'ptId0', 'ptId1', 'ptId2'
*/
export function getCellTriangles(cellPtsIds, type, idx) {
let ptId0 = -1;
let ptId1 = -1;
let ptId2 = -1;
const cellListLength = cellPtsIds.length;
switch (type) {
case CellType.VTK_TRIANGLE:
case CellType.VTK_POLYGON:
case CellType.VTK_QUAD: {
if (idx > cellListLength) break;
ptId0 = cellPtsIds[0];
ptId1 = cellPtsIds[idx + 1];
ptId2 = cellPtsIds[idx + 2];
break;
}
case CellType.VTK_TRIANGLE_STRIP: {
// eslint-disable-next-line no-bitwise
const idx1 = idx + 1 + (idx & 1);
// eslint-disable-next-line no-bitwise
const idx2 = idx + 2 - (idx & 1);
Iif (idx1 > cellListLength || idx2 > cellListLength) break;
ptId0 = cellPtsIds[idx];
ptId1 = cellPtsIds[idx1];
ptId2 = cellPtsIds[idx2];
break;
}
default:
ptId0 = -1;
ptId1 = -1;
ptId2 = -1;
break;
}
return { ptId0, ptId1, ptId2 };
}
/**
* Concatenate second typed array to the first typed array.
* @param {TypedArray} first
* @param {TypedArray} second Must be of the same type as first
* @return {TypedArray}
*/
export function pushArray(first, second) {
const firstLength = first.length;
const result = new first.constructor(firstLength + second.length);
result.set(first);
result.set(second, firstLength);
return result;
}
/**
* Load an obj with point's colors
*
* @param {string} url path to the OBJ file
* @return Promise
* ---> success : Return vtkPolyData
* ---> failed : Error message
*/
export function loadOBJ(url) {
return new Promise((resolve, reject) => {
const reader = vtkOBJReader.newInstance();
reader.setUrl(url).then(
() => {
const data = reader.getOutputData();
resolve(data);
},
() => {
// eslint-disable-next-line prefer-promise-reject-errors
reject('Error when loading ', url);
}
);
});
}
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