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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 | 'use client' import { jsPDF } from 'jspdf' import { useCallback, useEffect, useState } from 'react' import { generateMarkerSVG, getMarkerPositionLabel, loadAruco, MARKER_IDS, } from '@/lib/vision/arucoDetection' import { css } from '../../../../styled-system/css' const MARKER_SIZE_MM = 20 // Default marker size in mm const PAPER_SIZES = { letter: { width: 215.9, height: 279.4, label: 'US Letter (8.5" × 11")', format: 'letter' as const, }, a4: { width: 210, height: 297, label: 'A4 (210mm × 297mm)', format: 'a4' as const, }, } as const type PaperSize = keyof typeof PAPER_SIZES /** * Vision Markers Download Page * * Provides printable ArUco markers for automatic abacus calibration. * Users can download PDFs for printing or SVGs for 3D printing integration. */ export default function VisionMarkersPage() { const [markerSize, setMarkerSize] = useState(MARKER_SIZE_MM) const [isLibraryLoaded, setIsLibraryLoaded] = useState(false) // Load js-aruco2 library on mount useEffect(() => { loadAruco() .then(() => setIsLibraryLoaded(true)) .catch((err) => console.error('Failed to load ArUco library:', err)) }, []) // Convert SVG to data URL for embedding in PDF const svgToDataUrl = useCallback((svgString: string): Promise<string> => { return new Promise((resolve) => { const blob = new Blob([svgString], { type: 'image/svg+xml' }) const url = URL.createObjectURL(blob) const img = new Image() img.onload = () => { const canvas = document.createElement('canvas') canvas.width = img.width * 2 // Higher resolution canvas.height = img.height * 2 const ctx = canvas.getContext('2d')! ctx.fillStyle = 'white' ctx.fillRect(0, 0, canvas.width, canvas.height) ctx.drawImage(img, 0, 0, canvas.width, canvas.height) URL.revokeObjectURL(url) resolve(canvas.toDataURL('image/png')) } img.src = url }) }, []) // Download handler for printable PDF const handleDownloadPrintable = useCallback( async (paperSize: PaperSize) => { const paper = PAPER_SIZES[paperSize] const pdf = new jsPDF({ orientation: 'portrait', unit: 'mm', format: paper.format, }) const pageWidth = paper.width const pageHeight = paper.height const margin = 20 // Title pdf.setFontSize(20) pdf.setFont('helvetica', 'bold') pdf.text('Abacus Vision Calibration Markers', pageWidth / 2, margin, { align: 'center', }) pdf.setFontSize(10) pdf.setFont('helvetica', 'normal') pdf.text( 'Cut out and place on abacus corners. Print at 100% scale.', pageWidth / 2, margin + 8, { align: 'center' } ) // Calculate marker positions (2x2 grid) const spacing = 15 const gridWidth = markerSize * 2 + spacing const startX = (pageWidth - gridWidth) / 2 const startY = margin + 25 const markerPositions = [ { id: MARKER_IDS.TOP_LEFT, x: startX, y: startY }, { id: MARKER_IDS.TOP_RIGHT, x: startX + markerSize + spacing, y: startY, }, { id: MARKER_IDS.BOTTOM_LEFT, x: startX, y: startY + markerSize + spacing + 15, }, { id: MARKER_IDS.BOTTOM_RIGHT, x: startX + markerSize + spacing, y: startY + markerSize + spacing + 15, }, ] // Add each marker as an image for (const { id, x, y } of markerPositions) { const svg = generateMarkerSVG(id, 200) const dataUrl = await svgToDataUrl(svg) pdf.addImage(dataUrl, 'PNG', x, y, markerSize, markerSize) // Add label below marker pdf.setFontSize(9) pdf.setFont('helvetica', 'bold') pdf.text(getMarkerPositionLabel(id), x + markerSize / 2, y + markerSize + 5, { align: 'center', }) pdf.setFontSize(7) pdf.setFont('helvetica', 'normal') pdf.text(`ID: ${id}`, x + markerSize / 2, y + markerSize + 9, { align: 'center', }) } // Instructions const instructionsY = startY + markerSize * 2 + spacing + 40 pdf.setFontSize(10) pdf.setFont('helvetica', 'bold') pdf.text('Instructions:', margin, instructionsY) pdf.setFont('helvetica', 'normal') pdf.setFontSize(9) const instructions = [ '1. Print this page at 100% scale (no scaling/fit to page)', '2. Cut out each marker with a small white border (2-3mm)', '3. Attach to the corresponding corner of your abacus frame', '4. Use adhesive paper or double-sided tape for best results', ] instructions.forEach((text, i) => { pdf.text(text, margin, instructionsY + 6 + i * 5) }) // Footer pdf.setFontSize(7) pdf.setTextColor(128) pdf.text( `Marker size: ${markerSize}mm × ${markerSize}mm | abaci.one`, pageWidth / 2, pageHeight - 10, { align: 'center' } ) // Save the PDF pdf.save(`abacus-vision-markers-${paperSize}.pdf`) }, [markerSize, svgToDataUrl] ) // Download handler for individual marker SVG const handleDownloadMarkerSVG = useCallback( (markerId: number) => { const svg = generateMarkerSVG(markerId, markerSize * 10) // 10x for good resolution const blob = new Blob([svg], { type: 'image/svg+xml' }) const url = URL.createObjectURL(blob) const a = document.createElement('a') a.href = url a.download = `aruco-marker-${markerId}-${getMarkerPositionLabel(markerId).toLowerCase().replace(' ', '-')}.svg` document.body.appendChild(a) a.click() document.body.removeChild(a) URL.revokeObjectURL(url) }, [markerSize] ) // Download all markers as a ZIP-like bundle (actually just all SVGs) const handleDownloadAllSVGs = useCallback(() => { const markerIds = [ MARKER_IDS.TOP_LEFT, MARKER_IDS.TOP_RIGHT, MARKER_IDS.BOTTOM_RIGHT, MARKER_IDS.BOTTOM_LEFT, ] for (const id of markerIds) { setTimeout(() => handleDownloadMarkerSVG(id), id * 200) // Stagger downloads } }, [handleDownloadMarkerSVG]) return ( <div className={css({ minHeight: '100vh', bg: 'gray.50', py: 8, px: 4, })} > <div className={css({ maxWidth: '800px', mx: 'auto', })} > {/* Header */} <div className={css({ textAlign: 'center', mb: 8 })}> <h1 className={css({ fontSize: '2xl', fontWeight: 'bold', color: 'gray.900', mb: 2, })} > Abacus Vision Calibration Markers </h1> <p className={css({ color: 'gray.600', maxWidth: '600px', mx: 'auto', })} > Download ArUco markers for automatic calibration. Place these markers on the four corners of your abacus for instant camera calibration. </p> </div> {/* Marker Preview */} <div className={css({ bg: 'white', borderRadius: 'xl', p: 6, shadow: 'md', mb: 6, })} > <h2 className={css({ fontSize: 'lg', fontWeight: 'semibold', mb: 4 })}>Marker Preview</h2> {!isLibraryLoaded ? ( <div className={css({ textAlign: 'center', py: 8, color: 'gray.500' })}> Loading marker library... </div> ) : ( <div className={css({ display: 'grid', gridTemplateColumns: 'repeat(2, 1fr)', gap: 4, maxWidth: '400px', mx: 'auto', })} > {[ MARKER_IDS.TOP_LEFT, MARKER_IDS.TOP_RIGHT, MARKER_IDS.BOTTOM_LEFT, MARKER_IDS.BOTTOM_RIGHT, ].map((id) => ( <div key={id} className={css({ display: 'flex', flexDirection: 'column', alignItems: 'center', p: 3, border: '1px solid', borderColor: 'gray.200', borderRadius: 'lg', })} > <div dangerouslySetInnerHTML={{ __html: generateMarkerSVG(id, 80), }} className={css({ mb: 2 })} /> <span className={css({ fontSize: 'sm', fontWeight: 'medium' })}> {getMarkerPositionLabel(id)} </span> <span className={css({ fontSize: 'xs', color: 'gray.500' })}>ID: {id}</span> </div> ))} </div> )} </div> {/* Download Options */} <div className={css({ bg: 'white', borderRadius: 'xl', p: 6, shadow: 'md', mb: 6, })} > <h2 className={css({ fontSize: 'lg', fontWeight: 'semibold', mb: 4 })}> Download for Printing </h2> <p className={css({ color: 'gray.600', fontSize: 'sm', mb: 4 })}> Download a printable sheet with all 4 markers. Print at 100% scale on adhesive paper or regular paper with double-sided tape. </p> {/* Size selector */} <div className={css({ display: 'flex', alignItems: 'center', gap: 4, mb: 4, })} > <label className={css({ fontSize: 'sm', color: 'gray.700' })}> Marker size: <input type="number" value={markerSize} onChange={(e) => setMarkerSize(Number(e.target.value))} min={10} max={50} className={css({ ml: 2, width: '60px', px: 2, py: 1, border: '1px solid', borderColor: 'gray.300', borderRadius: 'md', fontSize: 'sm', })} /> <span className={css({ ml: 1, color: 'gray.500' })}>mm</span> </label> </div> {/* Paper size buttons */} <div className={css({ display: 'flex', gap: 3, flexWrap: 'wrap' })}> {(Object.keys(PAPER_SIZES) as PaperSize[]).map((size) => ( <button key={size} type="button" onClick={() => handleDownloadPrintable(size)} disabled={!isLibraryLoaded} className={css({ px: 4, py: 2, bg: 'blue.600', color: 'white', borderRadius: 'lg', fontWeight: 'medium', border: 'none', cursor: 'pointer', _hover: { bg: 'blue.700' }, _disabled: { opacity: 0.5, cursor: 'not-allowed' }, })} > Download {PAPER_SIZES[size].label} </button> ))} </div> </div> {/* SVG Downloads for 3D Printing */} <div className={css({ bg: 'white', borderRadius: 'xl', p: 6, shadow: 'md', mb: 6, })} > <h2 className={css({ fontSize: 'lg', fontWeight: 'semibold', mb: 4 })}> Vector Files for 3D Printing </h2> <p className={css({ color: 'gray.600', fontSize: 'sm', mb: 4 })}> Download individual SVG files to integrate into your 3D-printed abacus design. These can be used for laser engraving or as inlays. </p> <div className={css({ display: 'flex', gap: 3, flexWrap: 'wrap' })}> <button type="button" onClick={handleDownloadAllSVGs} disabled={!isLibraryLoaded} className={css({ px: 4, py: 2, bg: 'green.600', color: 'white', borderRadius: 'lg', fontWeight: 'medium', border: 'none', cursor: 'pointer', _hover: { bg: 'green.700' }, _disabled: { opacity: 0.5, cursor: 'not-allowed' }, })} > Download All SVGs </button> {[ MARKER_IDS.TOP_LEFT, MARKER_IDS.TOP_RIGHT, MARKER_IDS.BOTTOM_RIGHT, MARKER_IDS.BOTTOM_LEFT, ].map((id) => ( <button key={id} type="button" onClick={() => handleDownloadMarkerSVG(id)} disabled={!isLibraryLoaded} className={css({ px: 3, py: 2, bg: 'gray.100', color: 'gray.700', borderRadius: 'lg', fontSize: 'sm', border: '1px solid', borderColor: 'gray.300', cursor: 'pointer', _hover: { bg: 'gray.200' }, _disabled: { opacity: 0.5, cursor: 'not-allowed' }, })} > {getMarkerPositionLabel(id)} </button> ))} </div> </div> {/* Instructions */} <div className={css({ bg: 'blue.50', borderRadius: 'xl', p: 6, border: '1px solid', borderColor: 'blue.200', })} > <h2 className={css({ fontSize: 'lg', fontWeight: 'semibold', mb: 4, color: 'blue.900', })} > Placement Instructions </h2> <ol className={css({ listStyleType: 'decimal', pl: 5, color: 'blue.800', '& li': { mb: 2 }, })} > <li> <strong>Print at 100% scale</strong> - Do not use "Fit to Page" or any scaling option. The markers must be printed at their exact size for accurate detection. </li> <li> <strong>Use adhesive paper</strong> - For best results, print on adhesive-backed paper or label sheets. Alternatively, use double-sided tape. </li> <li> <strong>Cut with white border</strong> - Leave a small white border (2-3mm) around each marker. This helps with detection. </li> <li> <strong>Place on frame corners</strong> - Attach each marker to the corresponding corner of your abacus frame: <ul className={css({ listStyleType: 'disc', pl: 5, mt: 1 })}> <li>Top-Left marker (ID 0) → top-left corner of frame</li> <li>Top-Right marker (ID 1) → top-right corner of frame</li> <li>Bottom-Right marker (ID 2) → bottom-right corner of frame</li> <li>Bottom-Left marker (ID 3) → bottom-left corner of frame</li> </ul> </li> <li> <strong>Keep markers flat</strong> - Ensure markers are flat and not wrinkled for reliable detection. </li> </ol> </div> {/* Back link */} <div className={css({ textAlign: 'center', mt: 8 })}> <a href="/" className={css({ color: 'blue.600', textDecoration: 'underline', _hover: { color: 'blue.800' }, })} > ← Back to Home </a> </div> </div> </div> ) } |