| 412 | } |
| 413 | |
| 414 | public static void ProcessProximityLine(int[] scanlineArray, |
| 415 | short[] nearXArray, short[] nearYArray, boolean Forward, |
| 416 | int iLine, int XSize, float MaxDist, float[] proximityArray, |
| 417 | int TargetValues[]) { |
| 418 | |
| 419 | int iStart, iEnd, iStep, iPixel; |
| 420 | |
| 421 | if (Forward) { |
| 422 | iStart = 0; |
| 423 | iEnd = XSize; |
| 424 | iStep = 1; |
| 425 | } else { |
| 426 | iStart = XSize - 1; |
| 427 | iEnd = -1; |
| 428 | iStep = -1; |
| 429 | } |
| 430 | |
| 431 | for (iPixel = iStart; iPixel != iEnd; iPixel += iStep) { |
| 432 | |
| 433 | /* |
| 434 | * Is the current pixel a target pixel? |
| 435 | */ |
| 436 | |
| 437 | boolean isATarget = false; |
| 438 | |
| 439 | if( TargetValues.length == 0) { |
| 440 | isATarget = scanlineArray[iPixel] != 0.0F; |
| 441 | } else { |
| 442 | for( int i = 0; i < TargetValues.length; i++) { |
| 443 | if( scanlineArray[iPixel] == TargetValues[i] ) { |
| 444 | isATarget = true; |
| 445 | break; |
| 446 | } |
| 447 | } |
| 448 | } |
| 449 | |
| 450 | if (isATarget) { |
| 451 | proximityArray[iPixel] = 0.0F; |
| 452 | nearXArray[iPixel] = (short) iPixel; |
| 453 | nearYArray[iPixel] = (short) iLine; |
| 454 | continue; |
| 455 | } |
| 456 | |
| 457 | float NearDistSq = (float) Math.max((double) MaxDist, (double) XSize); |
| 458 | |
| 459 | NearDistSq = NearDistSq * NearDistSq * 2.0F; |
| 460 | |
| 461 | float DistSq = 0.0F; |
| 462 | |
| 463 | /* |
| 464 | * Are we near(er) to to the closest target to the above (below) |
| 465 | * pixel? |
| 466 | */ |
| 467 | |
| 468 | if (nearXArray[iPixel] != -1) { |
| 469 | DistSq = (nearXArray[iPixel] - iPixel) * (nearXArray[iPixel] - iPixel) |
| 470 | + (nearYArray[iPixel] - iLine) * (nearYArray[iPixel] - iLine); |
| 471 | if (DistSq < NearDistSq) { |