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| Rev 431 | Rev 444 | ||
|---|---|---|---|
| Line 375... | Line 375... | ||
| 375 | rand_fraction = fabs(double(item.density)); |
375 | rand_fraction = fabs(double(item.density)); |
| 376 | for (int i=0;i<item.count;i++) { |
376 | for (int i=0;i<item.count;i++) { |
| 377 | // create trees
|
377 | // create trees
|
| 378 | int tree_idx = ru->newTreeIndex(); |
378 | int tree_idx = ru->newTreeIndex(); |
| 379 | Tree &tree = ru->trees()[tree_idx]; // get reference to modify tree |
379 | Tree &tree = ru->trees()[tree_idx]; // get reference to modify tree |
| 380 | tree.setDbh(nrandom(item.dbh_from, item.dbh_to)); |
- | |
| - | 380 | tree.setDbh(nrandom(ru->randomGenerator(), item.dbh_from, item.dbh_to)); |
|
| 381 | tree.setHeight(tree.dbh()/100. * item.hd); // dbh from cm->m, *hd-ratio -> meter height |
381 | tree.setHeight(tree.dbh()/100. * item.hd); // dbh from cm->m, *hd-ratio -> meter height |
| 382 | tree.setSpecies(item.species); |
382 | tree.setSpecies(item.species); |
| 383 | if (item.age<=0) |
383 | if (item.age<=0) |
| 384 | tree.setAge(0,tree.height()); |
384 | tree.setAge(0,tree.height()); |
| 385 | else
|
385 | else
|
| Line 390... | Line 390... | ||
| 390 | 390 | ||
| 391 | // calculate random value. "density" is from 1..-1.
|
391 | // calculate random value. "density" is from 1..-1.
|
| 392 | rand_val = mRandom->get(); |
392 | rand_val = mRandom->get(); |
| 393 | if (item.density<0) |
393 | if (item.density<0) |
| 394 | rand_val = 1. - rand_val; |
394 | rand_val = 1. - rand_val; |
| 395 | rand_val = rand_val * rand_fraction + drandom()*(1.-rand_fraction); |
- | |
| - | 395 | rand_val = rand_val * rand_fraction + drandom(ru->randomGenerator())*(1.-rand_fraction); |
|
| 396 | 396 | ||
| 397 | // key: rank of target pixel
|
397 | // key: rank of target pixel
|
| 398 | // first: index of target pixel
|
398 | // first: index of target pixel
|
| 399 | // second: sum of target pixel
|
399 | // second: sum of target pixel
|
| 400 | key = limit(int(100*rand_val), 0, 99); // get from random number generator |
400 | key = limit(int(100*rand_val), 0, 99); // get from random number generator |