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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 | 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x 1x | import macro from 'vtk.js/Sources/macros';
import BinaryHelper from 'vtk.js/Sources/IO/Core/BinaryHelper';
import DataAccessHelper from 'vtk.js/Sources/IO/Core/DataAccessHelper';
import vtkPolyData from 'vtk.js/Sources/Common/DataModel/PolyData';
import vtkPoints from 'vtk.js/Sources/Common/Core/Points';
import vtkCellArray from 'vtk.js/Sources/Common/Core/CellArray';
// Enable several sources for DataAccessHelper
import 'vtk.js/Sources/IO/Core/DataAccessHelper/LiteHttpDataAccessHelper'; // Just need HTTP
// import 'vtk.js/Sources/IO/Core/DataAccessHelper/HttpDataAccessHelper'; // HTTP + gz
// import 'vtk.js/Sources/IO/Core/DataAccessHelper/HtmlDataAccessHelper'; // html + base64 + zip
// import 'vtk.js/Sources/IO/Core/DataAccessHelper/JSZipDataAccessHelper'; // zip
// ----------------------------------------------------------------------------
// vtkGCodeReader methods
// ----------------------------------------------------------------------------
function vtkGCodeReader(publicAPI, model) {
const state = {
currentPosition: { x: 0, y: 0, z: 0 },
offset: { x: 0, y: 0, z: 0 },
currentLayer: 0,
layers: new Map(), // Map to store layer data
isAbsolute: true, // G90 is default
isMetric: true, // G21 is default
lastZ: 0, // Track Z changes for layer detection
};
model.classHierarchy.push('vtkGCodeReader');
if (!model.dataAccessHelper) {
model.dataAccessHelper = DataAccessHelper.get('http');
}
function fetchData(url, option = {}) {
const { compression, progressCallback } = model;
if (option.binary) {
return model.dataAccessHelper.fetchBinary(url, {
compression,
progressCallback,
});
}
return model.dataAccessHelper.fetchText(publicAPI, url, {
compression,
progressCallback,
});
}
function detectLayerChange(newZ) {
if (Math.abs(newZ - state.lastZ) > 0.001) {
state.currentLayer++;
state.lastZ = newZ;
return true;
}
return false;
}
function initializeLayer() {
if (!state.layers.has(state.currentLayer)) {
const points = vtkPoints.newInstance();
const lines = vtkCellArray.newInstance();
const polyData = vtkPolyData.newInstance();
polyData.setPoints(points);
polyData.setLines(lines);
state.layers.set(state.currentLayer, {
polyData,
points,
lines,
zHeight: state.lastZ,
});
}
}
function addLineToLayer(startPoint, endPoint) {
initializeLayer();
const layer = state.layers.get(state.currentLayer);
// Add points and get their indices
const startIndex = layer.points.insertNextPoint(
startPoint[0],
startPoint[1],
startPoint[2]
);
const endIndex = layer.points.insertNextPoint(
endPoint[0],
endPoint[1],
endPoint[2]
);
// Add line cell
layer.lines.insertNextCell([startIndex, endIndex]);
}
function processMove(params) {
const newPosition = { ...state.currentPosition };
let positionChanged = false;
['X', 'Y', 'Z'].forEach((axis) => {
if (axis in params) {
const value = state.isMetric ? params[axis] : params[axis] * 25.4;
newPosition[axis.toLowerCase()] = state.isAbsolute
? value + state.offset[axis.toLowerCase()]
: state.currentPosition[axis.toLowerCase()] + value;
positionChanged = true;
}
});
if (positionChanged) {
if ('Z' in params) {
detectLayerChange(newPosition.z);
}
const startPoint = [
state.currentPosition.x,
state.currentPosition.y,
state.currentPosition.z,
];
const endPoint = [newPosition.x, newPosition.y, newPosition.z];
addLineToLayer(startPoint, endPoint);
state.currentPosition = newPosition;
}
}
function processG92(params) {
['X', 'Y', 'Z'].forEach((axis) => {
if (axis in params) {
state.offset[axis.toLowerCase()] =
state.currentPosition[axis.toLowerCase()] -
(state.isMetric ? params[axis] : params[axis] * 25.4);
}
});
}
function processCommand(command, params) {
switch (command) {
case 'G0': // Rapid move
case 'G1': // Linear move
processMove(params);
break;
case 'G20': // Imperial
state.isMetric = false;
break;
case 'G21': // Metric
state.isMetric = true;
break;
case 'G90': // Absolute positioning
state.isAbsolute = true;
break;
case 'G91': // Relative positioning
state.isAbsolute = false;
break;
case 'G92': // Set position
processG92(params);
break;
default:
break;
}
}
function parseGCode(gcodeText) {
const lines = gcodeText.split('\n');
lines.forEach((line) => {
const sline = line.split(';')[0].trim();
if (!sline) return;
const tokens = sline.split(' ');
const command = tokens[0];
const params = {};
tokens.slice(1).forEach((token) => {
const param = token[0];
const value = parseFloat(token.slice(1));
if (!Number.isNaN(value)) {
params[param] = value;
}
});
processCommand(command, params);
});
}
// Public methods
publicAPI.setUrl = (url, option = { binary: true }) => {
model.url = url;
const path = url.split('/');
path.pop();
model.baseURL = path.join('/');
model.compression = option.compression;
return publicAPI.loadData({
progressCallback: option.progressCallback,
binary: !!option.binary,
});
};
publicAPI.loadData = (option = {}) => {
const promise = fetchData(model.url, option);
promise.then(publicAPI.parse);
return promise;
};
publicAPI.parseAsText = (content) => {
parseGCode(content);
};
publicAPI.parseAsArrayBuffer = (content) => {
const data = BinaryHelper.arrayBufferToString(content);
parseGCode(data);
};
publicAPI.parse = (content) => {
if (typeof content === 'string') {
publicAPI.parseAsText(content);
} else {
publicAPI.parseAsArrayBuffer(content);
}
state.layers.forEach((layer, i) => {
model.output[i] = layer.polyData;
});
};
publicAPI.requestData = (inData, outData) => {
publicAPI.parse(model.parseData);
};
publicAPI.getNumberOfOutputPorts = () => state.layers.size;
}
const DEFAULT_VALUES = {
// baseURL: null,
// dataAccessHelper: null,
// url: null,
};
export function extend(publicAPI, model, initialValues = {}) {
Object.assign(model, DEFAULT_VALUES, initialValues);
// Build VTK API
macro.obj(publicAPI, model);
macro.get(publicAPI, model, ['url', 'baseURL']);
macro.setGet(publicAPI, model, ['dataAccessHelper']);
macro.algo(publicAPI, model, 0, 1);
macro.event(publicAPI, model, 'ready');
vtkGCodeReader(publicAPI, model);
}
export const newInstance = macro.newInstance(extend, 'vtkGCodeReader');
export default {
extend,
newInstance,
};
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