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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 | 1x 4x 4x 4x 165x 165x 165x 165x 165x 165x 23x 4x 4x 4x 4x 4x 4x 4x 4x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 19x 142x 81x 42x 42x 372x 42x 39x 39x 39x 105x 81x 61x 19x 7x 7x 72x 7x 12x 12x 12x 44x 19x 42x 42x 42x 42x 16x 16x 4x 4x 4x 4x 4x 4x 4x 4x 108x 108x 108x 216x 108x 108x 4x 4x 4x 4x 4x 4x 4x 4x 4x 4x 108x 4x 4x 1x 16x 16x 16x 16x 1x | import macro from 'vtk.js/Sources/macros';
import vtkCellArray from 'vtk.js/Sources/Common/Core/CellArray';
import vtkPolyData from 'vtk.js/Sources/Common/DataModel/PolyData';
const { vtkErrorMacro } = macro;
class SegmentAgregator {
constructor() {
this.segmentMapping = {};
this.segments = [null]; // to force first id to be 1
this.faces = [];
}
addSegment(segment) {
const first = segment[0];
const last = segment[segment.length - 1];
Iif (first === last || segment.length < 2) {
return;
}
const mappingFirst = this.segmentMapping[first];
const mappingLast = this.segmentMapping[last];
if (mappingFirst !== undefined && mappingLast !== undefined) {
if (Math.abs(mappingFirst) === Math.abs(mappingLast)) {
// This make a closing loop
const idx = mappingFirst < mappingLast ? mappingLast : mappingFirst;
const seg = this.segments[idx];
if (mappingFirst > 0) {
for (let i = 1; i < segment.length - 1; i++) {
seg.push(segment[i]);
}
} else E{
for (let i = 1; i < segment.length - 1; i++) {
seg.unshift(segment[segment.length - 1 - i]);
}
}
this.faces.push(seg);
this.segments[idx] = null;
this.segmentMapping[first] = undefined;
this.segmentMapping[last] = undefined;
} else {
// we need to merge segments
// strategie:
// => remove and add them again in special order to induce merge
const idxHead = Math.abs(mappingFirst);
const idxTail = Math.abs(mappingLast);
const segHead = this.segments[idxHead];
const segTail = this.segments[idxTail];
this.segments[idxHead] = null;
this.segments[idxTail] = null;
this.segmentMapping[segHead[0]] = undefined;
this.segmentMapping[segTail[0]] = undefined;
this.segmentMapping[segHead[segHead.length - 1]] = undefined;
this.segmentMapping[segTail[segTail.length - 1]] = undefined;
// This will lead to a single segment
this.addSegment(segment);
this.addSegment(segHead);
this.addSegment(segTail);
}
} else if (mappingFirst !== undefined) {
if (mappingFirst > 0) {
// The head of our segment match the tail of the existing one
const seg = this.segments[mappingFirst];
for (let i = 1; i < segment.length; i++) {
seg.push(segment[i]);
}
// record new tail
this.segmentMapping[last] = mappingFirst;
} else {
// our segment should be reverted and put on the front of the existing one
const seg = this.segments[-mappingFirst];
// record new head
this.segmentMapping[last] = mappingFirst;
for (let i = 1; i < segment.length; i++) {
seg.unshift(segment[i]);
}
}
// Erase used connection
this.segmentMapping[first] = undefined;
} else if (mappingLast !== undefined) {
if (mappingLast > 0) {
// The tail of our segment match the tail of the existing one
const seg = this.segments[mappingLast];
for (let i = 1; i < segment.length; i++) {
seg.push(segment[segment.length - 1 - i]);
}
// record new tail
this.segmentMapping[first] = mappingLast;
} else {
// our segment should be reverted and put on the front of the existing one
const seg = this.segments[-mappingLast];
// record new head
this.segmentMapping[first] = mappingLast;
for (let i = 1; i < segment.length; i++) {
seg.unshift(segment[segment.length - i - 1]);
}
}
// Erase used connection
this.segmentMapping[last] = undefined;
} else {
// store segment for now
const id = this.segments.length;
this.segments.push(segment);
this.segmentMapping[first] = -id;
this.segmentMapping[last] = id;
}
}
}
// ----------------------------------------------------------------------------
// vtkClosedPolyLineToSurfaceFilter methods
// ----------------------------------------------------------------------------
function vtkClosedPolyLineToSurfaceFilter(publicAPI, model) {
// Set our className
model.classHierarchy.push('vtkClosedPolyLineToSurfaceFilter');
// --------------------------------------------------------------------------
publicAPI.requestData = (inData, outData) => {
// implement requestData
const input = inData[0];
Iif (!input) {
vtkErrorMacro('Invalid or missing input');
return;
}
const output = vtkPolyData.newInstance();
output.shallowCopy(input);
// Extract faces
const agregator = new SegmentAgregator();
const lines = input.getLines().getData();
let offset = 0;
while (offset < lines.length) {
const lineSize = lines[offset++];
const lineSegment = [];
for (let i = 0; i < lineSize; i++) {
lineSegment.push(lines[offset + i]);
}
agregator.addSegment(lineSegment);
offset += lineSize;
}
// Create CellArray for polys
const { faces } = agregator;
let cellArraySize = faces.length;
for (let i = 0; i < faces.length; i++) {
cellArraySize += faces[i].length;
}
const cellArray = new Uint16Array(cellArraySize);
offset = 0;
for (let i = 0; i < faces.length; i++) {
const face = faces[i];
cellArray[offset++] = face.length;
for (let j = 0; j < face.length; j++) {
cellArray[offset++] = face[j];
}
}
output.setPolys(
vtkCellArray.newInstance({ values: cellArray, name: 'faces' })
);
outData[0] = output;
};
}
// ----------------------------------------------------------------------------
// Object factory
// ----------------------------------------------------------------------------
const DEFAULT_VALUES = {};
// ----------------------------------------------------------------------------
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Make this a VTK object
macro.obj(publicAPI, model);
// Also make it an algorithm with one input and one output
macro.algo(publicAPI, model, 1, 1);
// Object specific methods
vtkClosedPolyLineToSurfaceFilter(publicAPI, model);
}
// ----------------------------------------------------------------------------
export const newInstance = macro.newInstance(
extend,
'vtkClosedPolyLineToSurfaceFilter'
);
// ----------------------------------------------------------------------------
export default { newInstance, extend };
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