/********************************************************************** * to_spacing * * Compute fuzzy word spacing thresholds for each row. **********************************************************************/ #ifndef TOSPACE_H #define TOSPACE_H #include "blobbox.h" #include "gap_map.h" #include "statistc.h" #include "notdll.h" extern BOOL_VAR_H (tosp_old_to_method, FALSE, "Space stats use prechopping?"); extern BOOL_VAR_H (tosp_only_use_prop_rows, TRUE, "Block stats to use fixed pitch rows?"); extern BOOL_VAR_H (tosp_use_pre_chopping, FALSE, "Space stats use prechopping?"); extern BOOL_VAR_H (tosp_old_to_bug_fix, FALSE, "Fix suspected bug in old code"); extern BOOL_VAR_H (tosp_block_use_cert_spaces, TRUE, "Only stat OBVIOUS spaces"); extern BOOL_VAR_H (tosp_row_use_cert_spaces, TRUE, "Only stat OBVIOUS spaces"); extern BOOL_VAR_H (tosp_narrow_blobs_not_cert, TRUE, "Only stat OBVIOUS spaces"); extern BOOL_VAR_H (tosp_row_use_cert_spaces1, TRUE, "Only stat OBVIOUS spaces"); extern BOOL_VAR_H (tosp_recovery_isolated_row_stats, TRUE, "Use row alone when inadequate cert spaces"); extern BOOL_VAR_H (tosp_only_small_gaps_for_kern, FALSE, "Better guess"); extern BOOL_VAR_H (tosp_all_flips_fuzzy, FALSE, "Pass ANY flip to context?"); extern BOOL_VAR_H (tosp_fuzzy_limit_all, TRUE, "Dont restrict kn->sp fuzzy limit to tables"); extern BOOL_VAR_H (tosp_stats_use_xht_gaps, TRUE, "Use within xht gap for wd breaks"); extern BOOL_VAR_H (tosp_use_xht_gaps, TRUE, "Use within xht gap for wd breaks"); extern BOOL_VAR_H (tosp_only_use_xht_gaps, FALSE, "Only use within xht gap for wd breaks"); extern BOOL_VAR_H (tosp_rule_9_test_punct, FALSE, "Dont chng kn to space next to punct"); extern BOOL_VAR_H (tosp_flip_fuzz_kn_to_sp, TRUE, "Default flip"); extern BOOL_VAR_H (tosp_flip_fuzz_sp_to_kn, TRUE, "Default flip"); extern BOOL_VAR_H (tosp_improve_thresh, FALSE, "Enable improvement heuristic"); extern INT_VAR_H (tosp_debug_level, 0, "Debug data"); extern INT_VAR_H (tosp_enough_space_samples_for_median, 3, "or should we use mean"); extern INT_VAR_H (tosp_redo_kern_limit, 10, "No.samples reqd to reestimate for row"); extern INT_VAR_H (tosp_few_samples, 40, "No.gaps reqd with 1 large gap to treat as a table"); extern INT_VAR_H (tosp_short_row, 20, "No.gaps reqd with few cert spaces to use certs"); extern INT_VAR_H (tosp_sanity_method, 1, "How to avoid being silly"); extern double_VAR_H (tosp_threshold_bias1, 0, "how far between kern and space?"); extern double_VAR_H (tosp_threshold_bias2, 0, "how far between kern and space?"); extern double_VAR_H (tosp_narrow_fraction, 0.3, "Fract of xheight for narrow"); extern double_VAR_H (tosp_narrow_aspect_ratio, 0.48, "narrow if w/h less than this"); extern double_VAR_H (tosp_wide_fraction, 0.52, "Fract of xheight for wide"); extern double_VAR_H (tosp_wide_aspect_ratio, 0.0, "wide if w/h less than this"); extern double_VAR_H (tosp_fuzzy_space_factor, 0.6, "Fract of xheight for fuzz sp"); extern double_VAR_H (tosp_fuzzy_space_factor1, 0.5, "Fract of xheight for fuzz sp"); extern double_VAR_H (tosp_fuzzy_space_factor2, 0.72, "Fract of xheight for fuzz sp"); extern double_VAR_H (tosp_gap_factor, 0.83, "gap ratio to flip sp->kern"); extern double_VAR_H (tosp_kern_gap_factor1, 2.0, "gap ratio to flip kern->sp"); extern double_VAR_H (tosp_kern_gap_factor2, 1.3, "gap ratio to flip kern->sp"); extern double_VAR_H (tosp_kern_gap_factor3, 2.5, "gap ratio to flip kern->sp"); extern double_VAR_H (tosp_ignore_big_gaps, -1, "xht multiplier"); extern double_VAR_H (tosp_ignore_very_big_gaps, 3.5, "xht multiplier"); extern double_VAR_H (tosp_rep_space, 1.6, "rep gap multiplier for space"); extern double_VAR_H (tosp_enough_small_gaps, 0.65, "Fract of kerns reqd for isolated row stats"); extern double_VAR_H (tosp_table_kn_sp_ratio, 2.25, "Min difference of kn & sp in table"); extern double_VAR_H (tosp_table_xht_sp_ratio, 0.33, "Expect spaces bigger than this"); extern double_VAR_H (tosp_table_fuzzy_kn_sp_ratio, 3.0, "Fuzzy if less than this"); extern double_VAR_H (tosp_fuzzy_kn_fraction, 0.5, "New fuzzy kn alg"); extern double_VAR_H (tosp_fuzzy_sp_fraction, 0.5, "New fuzzy sp alg"); extern double_VAR_H (tosp_min_sane_kn_sp, 1.5, "Dont trust spaces less than this time kn"); extern double_VAR_H (tosp_init_guess_kn_mult, 2.2, "Thresh guess - mult kn by this"); extern double_VAR_H (tosp_init_guess_xht_mult, 0.28, "Thresh guess - mult xht by this"); extern double_VAR_H (tosp_max_sane_kn_thresh, 5.0, "Multiplier on kn to limit thresh"); extern double_VAR_H (tosp_flip_caution, 0.0, "Dont autoflip kn to sp when large separation"); extern double_VAR_H (tosp_large_kerning, 0.19, "Limit use of xht gap with large kns"); extern double_VAR_H (tosp_dont_fool_with_small_kerns, -1, "Limit use of xht gap with odd small kns"); extern double_VAR_H (tosp_near_lh_edge, 0, "Dont reduce box if the top left is non blank"); extern double_VAR_H (tosp_silly_kn_sp_gap, 0.2, "Dont let sp minus kn get too small"); extern double_VAR_H (tosp_pass_wide_fuzz_sp_to_context, 0.75, "How wide fuzzies need context"); void to_spacing( //set spacing ICOORD page_tr, //topright of page TO_BLOCK_LIST *blocks //blocks on page ); //DEBUG USE ONLY void block_spacing_stats(TO_BLOCK *block, GAPMAP *gapmap, BOOL8 &old_text_ord_proportional, inT16 &block_space_gap_width, //resulting estimate inT16 &block_non_space_gap_width //resulting estimate ); //estimate for block void row_spacing_stats(TO_ROW *row, GAPMAP *gapmap, inT16 block_idx, inT16 row_idx, inT16 block_space_gap_width, inT16 block_non_space_gap_width //estimate for block ); //estimate for block void old_to_method(TO_ROW *row, STATS *all_gap_stats, STATS *space_gap_stats, STATS *small_gap_stats, inT16 block_space_gap_width, inT16 block_non_space_gap_width //estimate for block ); BOOL8 isolated_row_stats(TO_ROW *row, GAPMAP *gapmap, STATS *all_gap_stats, BOOL8 suspected_table, inT16 block_idx, inT16 row_idx); inT16 stats_count_under(STATS *stats, inT16 threshold); void improve_row_threshold(TO_ROW *row, STATS *all_gap_stats); ROW *make_prop_words( //find lines TO_ROW *row, //row to make FCOORD rotation //for drawing ); BOOL8 make_a_word_break( //decide on word break TO_ROW *row, //row being made TBOX blob_box, //for next_blob //how many blanks? inT16 prev_gap, TBOX prev_blob_box, inT16 real_current_gap, inT16 within_xht_current_gap, TBOX next_blob_box, inT16 next_gap, uinT8 &blanks, BOOL8 &fuzzy_sp, BOOL8 &fuzzy_non); BOOL8 narrow_blob(TO_ROW *row, TBOX blob_box); BOOL8 wide_blob(TO_ROW *row, TBOX blob_box); BOOL8 suspected_punct_blob(TO_ROW *row, TBOX box); //A COPY FOR PEEKING void peek_at_next_gap(TO_ROW *row, BLOBNBOX_IT box_it, TBOX &next_blob_box, inT16 &next_gap, inT16 &next_within_xht_gap); void mark_gap( //Debug stuff TBOX blob, //blob following gap inT16 rule, // heuristic id inT16 prev_gap, inT16 prev_blob_width, inT16 current_gap, inT16 next_blob_width, inT16 next_gap); float find_mean_blob_spacing(WERD *word); BOOL8 ignore_big_gap(TO_ROW *row, inT32 row_length, GAPMAP *gapmap, inT16 left, inT16 right); TBOX reduced_box_next( //get bounding box TO_ROW *row, //current row BLOBNBOX_IT *it //iterator to blobds ); TBOX reduced_box_for_blob(BLOBNBOX *blob, TO_ROW *row, inT16 *left_above_xht); #endif