diff options
Diffstat (limited to 'metapost')
| -rw-r--r-- | metapost/context/base/mp-chem.mpiv | 262 |
1 files changed, 144 insertions, 118 deletions
diff --git a/metapost/context/base/mp-chem.mpiv b/metapost/context/base/mp-chem.mpiv index 066a60bfd..59179ed85 100644 --- a/metapost/context/base/mp-chem.mpiv +++ b/metapost/context/base/mp-chem.mpiv @@ -20,7 +20,7 @@ if known context_chem : endinput ; fi ; boolean context_chem ; context_chem := true ; numeric - chem_width, chem_radical_min, chem_radical_max, chem_text_max, chem_circle_radius, + chem_width, chem_radical_min, chem_radical_max, chem_text_min, chem_text_max, chem_circle_radius, chem_rotation, chem_adjacent, chem_stack, chem_substituent, chem_direction, chem_setting_scale, chem_setting_offset, chem_text_offset, chem_picture_offset, chem_center_offset, chem_substituent_offset, chem_setting_l, chem_setting_r, chem_setting_t, chem_setting_b ; @@ -41,24 +41,26 @@ pair chem_adjacent_p, chem_substituent_p, chem_direction_p, chem_move_p ; numeric - chem_width[], chem_angle[], chem_start[], chem_initialrot[], chem_initialmov[] ; + chem_width[], chem_angle[], chem_dbl_offset[], chem_initialmov[] ; pair chem_stack_d[], chem_b_zero[], chem_n_zero[], - chem_r_max[], chem_r_min[], + chem_r_max[], chem_r_zero[], chem_mr_zero[], chem_pr_zero[], chem_crz_zero[], chem_rt_zero[], chem_rtt_zero[], chem_rbt_zero[], + chem_zbt_zero[], chem_ztt_zero[], chem_mid_zero[] ; path chem_b_path[], chem_bx_path[], chem_eb_path[], chem_sr_path[], chem_br_path[], chem_sb_path[], chem_msb_path[], chem_psb_path[], chem_s_path[], chem_ss_path[], chem_mss_path[], chem_pss_path[], - chem_e_path[], chem_sd_path[], chem_bb_path[], chem_oe_path[], + chem_e_path[], chem_bb_path[], chem_oe_path[], chem_bd_path[], chem_bw_path[], chem_ddt_path[], chem_ddb_path[], chem_ldt_path[], chem_ldb_path[], chem_rdt_path[], chem_rdb_path[], chem_dbl_path[], chem_dbr_path[], + chem_tbl_path[], chem_tbr_path[], chem_ad_path[], chem_au_path[], chem_r_path[], chem_rl_path[], chem_rr_path[], chem_rb_path[], chem_prb_path[], chem_mrb_path[], @@ -69,18 +71,18 @@ path chem_midt_path[], chem_midb_path[], chem_midst_path[], chem_midsb_path[] ; chem_setting_scale := 1 ; -chem_base_width := 40pt ; -chem_text_offset := 3pt ; +chem_base_width := 40pt ; % Should this rather follow the font size? +chem_text_offset := 3pt ; % ? chem_center_offset := 6pt ; -chem_picture_offset := 10pt ; -chem_substituent_offset := 10pt ; +chem_picture_offset := 10pt ; % Should this follow chem_base_width (thus the font size)? +chem_substituent_offset := 10pt ; % Should this follow chem_base_width (thus the font size)? chem_radical_min := 1.25 ; chem_radical_max := 1.50 ; chem_text_min := 0.75 ; -chem_text_max := 1.75 ; +chem_text_max := 1.25 ; chem_circle_radius := 0.80 ; chem_circle_radius := 1.10 ; -chem_rotation := 1 ; +chem_rotation := 0 ; chem_adjacent := 0 ; chem_substituent := 0 ; chem_direction := 0 ; @@ -96,6 +98,7 @@ chem_bb_angle := 4 ; chem_axis_color := blue ; % TODO: add "axiscolor=" option in lua... vardef chem_start_structure(expr n, l, r, t, b, scale, axis, fixedwidth, fixedheight, offset) = + % note that "n" is not used... chem_setting_axis := axis ; chem_setting_l := l * scale ; chem_setting_r := r * scale ; @@ -108,7 +111,7 @@ vardef chem_start_structure(expr n, l, r, t, b, scale, axis, fixedwidth, fixedhe chem_setting_scale := scale ; chem_init_all ; fi ; - chem_rotation := 1 ; + chem_rotation := 0 ; chem_adjacent := 0 ; chem_substituent := 0 ; chem_direction := 0 ; @@ -227,13 +230,8 @@ vardef chem_eb (expr n, f, t, r, c) = enddef ; vardef chem_db (expr n, f, t, r, c) = - if n = 1 : - chem_draw (n, chem_msb_path [n], f, t, r, c) ; - chem_draw (n, chem_psb_path [n], f, t, r, c) ; - else : - chem_draw (n, chem_dbl_path [n], f, t, r, c) ; - chem_draw (n, chem_dbr_path [n], f, t, r, c) ; - fi ; + chem_draw (n, chem_dbl_path [n], f, t, r, c) ; + chem_draw (n, chem_dbr_path [n], f, t, r, c) ; enddef ; vardef chem_er (expr n, f, t, r, c) = @@ -319,7 +317,7 @@ vardef chem_psr (expr n, f, t, r, c) = enddef ; vardef chem_c (expr n, f, t, r, c) = - chem_draw (n, chem_c_path[n], f, t, r, c) + chem_draw (n, chem_c_path[n], f, f, r, c) enddef ; vardef chem_cc (expr n, f, t, r, c) = @@ -327,7 +325,7 @@ vardef chem_cc (expr n, f, t, r, c) = enddef ; vardef chem_cd (expr n, f, t, r, c) = - chem_dashed_connected (n, chem_c_path[n], f, t, r, c) + chem_dashed_connected (n, chem_c_path[n], f, f, r, c) enddef ; vardef chem_ccd (expr n, f, t, r, c) = @@ -347,13 +345,13 @@ vardef chem_rbn (expr n, i, t) = enddef ; vardef chem_tb (expr n, f, t, r, c) = % one - chem_draw (n, chem_msb_path[n], f, t, r, c) ; - chem_draw (n, chem_sb_path [n], f, t, r, c) ; - chem_draw (n, chem_psb_path[n], f, t, r, c) ; + chem_draw (n, chem_tbl_path [n], f, t, r, c) ; + chem_draw (n, chem_sb_path [n], f, t, r, c) ; + chem_draw (n, chem_tbr_path [n], f, t, r, c) ; enddef ; vardef chem_ep (expr n, f, t, r, c) = % one - chem_draw (n, chem_e_path[n], f, t, r, c) ; + chem_draw (n, (subpath (.25,.75) of chem_e_path[n]), f, t, r, c) ; enddef ; vardef chem_es (expr n, f, t, r, c) = % one @@ -361,8 +359,8 @@ vardef chem_es (expr n, f, t, r, c) = % one enddef ; vardef chem_ed (expr n, f, t, r, c) = % one - chem_draw_dot (n, point 0 of chem_e_path[n], f, t, r, c) ; - chem_draw_dot (n, point 1 of chem_e_path[n], f, t, r, c) ; + chem_draw_dot (n, point .25 of chem_e_path[n], f, t, r, c) ; + chem_draw_dot (n, point .75 of chem_e_path[n], f, t, r, c) ; enddef ; vardef chem_et (expr n, f, t, r, c) = % one @@ -379,11 +377,11 @@ enddef ; vardef chem_rdd (expr n, f, t, r, c) = % one chem_draw (n, chem_ldt_path[n], f, t, r, c) ; chem_draw (n, chem_ldb_path[n], f, t, r, c) ; - chem_draw (n, chem_psb_path[n], f, t, r, c) ; + chem_draw (n, chem_sb_path [n], f, t, r, c) ; enddef ; vardef chem_ldd (expr n, f, t, r, c) = % one - chem_draw (n, chem_msb_path[n], f, t, r, c) ; + chem_draw (n, chem_sb_path [n], f, t, r, c) ; chem_draw (n, chem_rdt_path[n], f, t, r, c) ; chem_draw (n, chem_rdb_path[n], f, t, r, c) ; enddef ; @@ -394,10 +392,11 @@ vardef chem_hb (expr n, f, t, r, c) = % one chem_draw_dot (n, point 1 of chem_sb_path[n], f, t, r, c) ; enddef ; -vardef chem_bb (expr n, f, t, r, c) = % one +vardef chem_bb (expr n, f, t, r, c) = % one and front if n < 0 : - chem_fill (n, chem_bb_path[n], 1, 1, r, c) ; - chem_b (n, f, t, r, c) ; + if ((f = 1) and (t = -n)) : % ignore all but "BB" + chem_fill (n, chem_bb_path[n], 1, 1, r, c) ; + fi else : chem_fill (n, chem_bb_path[n], f, t, r, c) ; fi ; @@ -434,7 +433,9 @@ vardef chem_z@#(expr n, p) (text t) = enddef ; vardef chem_cz@#(expr n, p) (text t) = - if n = 1 : + if p = 0 : + chem_text@#(t, chem_do(origin)) ; + elseif n = 1 : chem_c_text(t, chem_do(chem_crz_zero[n] rotated chem_ang(n,p))) ; else : chem_text@#(t, chem_do(chem_b_zero[n] rotated chem_ang(n,p))) ; @@ -445,12 +446,37 @@ vardef chem_midz@#(expr n, p) (text t) = chem_text@#(t, chem_do(chem_mid_zero[n] rotated chem_ang(n,p))) ; enddef ; +string mfun_auto_align[] ; +mfun_auto_align[0] := "rt" ; +mfun_auto_align[1] := "urt" ; +mfun_auto_align[2] := "top" ; +mfun_auto_align[3] := "ulft" ; +mfun_auto_align[4] := "lft" ; +mfun_auto_align[5] := "llft" ; +mfun_auto_align[6] := "bot" ; +mfun_auto_align[7] := "lrt" ; +mfun_auto_align[8] := "rt" ; + +def autoalign(expr n) = + scantokens mfun_auto_align[round((n mod 360)/45)] +enddef ; + +% draw textext.autoalign(60) ("\strut oeps 1") ; +% draw textext.autoalign(160)("\strut oeps 2") ; +% draw textext.autoalign(260)("\strut oeps 3") ; +% draw textext.autoalign(360)("\strut oeps 4") ; + + vardef chem_rz@#(expr n, p) (text t) = if n < 0 : % quite special chem_text@#(t, chem_do(chem_r_zero[n] shifted (chem_b_zero[n] rotated chem_ang(n,p)))) ; else : - chem_text@#(t, chem_do(chem_r_zero[n] rotated chem_ang(n,p))) ; + if (length(str @#)>0) and (str @# = "auto") : + chem_text.autoalign(chem_ang(n,p-.5)) (t, chem_do(chem_r_zero[n] rotated chem_ang(n,p))) ; + else : + chem_text@#(t, chem_do(chem_r_zero[n] rotated chem_ang(n,p))) ; + fi fi ; enddef ; @@ -489,35 +515,27 @@ vardef chem_rbt@#(expr n, p) (text t) = enddef ; vardef chem_zt@#(expr n, p) (text t) = - if n = 1 : - chem_text@#(t, chem_do(chem_rt_zero[n] rotated chem_ang(n,p))) ; - else : - chem_text@#(t, chem_do(chem_n_zero[n] rotated chem_ang(n,p))) ; - fi ; + chem_text@#(t, chem_do(chem_n_zero[n] rotated chem_ang(n,p))) ; enddef ; vardef chem_zn@#(expr n, p) (text t) = - if n = 1 : - chem_text@#(t, chem_do(chem_rt_zero[n] rotated chem_ang(n,p))) ; - else : - chem_text@#(t, chem_do(chem_n_zero[n] rotated chem_ang(n,p))) ; - fi ; + chem_zt@#(n, p, t) ; enddef ; vardef chem_zbt@#(expr n, p) (text t) = - chem_text@#(t, chem_do(chem_rtt_zero[n] rotated chem_ang(n,p))) ; + chem_text@#(t, chem_do(chem_zbt_zero[n] rotated chem_ang(n,p))) ; enddef ; vardef chem_zbn@#(expr n, p) (text t) = - chem_text@#(t, chem_do(chem_rtt_zero[n] rotated chem_ang(n,p))) ; + chem_zbt@#(n, p, t) ; enddef ; vardef chem_ztt@#(expr n, p) (text t) = - chem_text@#(t, chem_do(chem_rbt_zero[n] rotated chem_ang(n,p))) ; + chem_text@#(t, chem_do(chem_ztt_zero[n] rotated chem_ang(n,p))) ; enddef ; vardef chem_ztn@#(expr n, p) (text t) = - chem_text@#(t, chem_do(chem_rbt_zero[n] rotated chem_ang(n,p))) ; + chem_ztt@#(n, p, t) ; enddef ; vardef chem_symbol(expr t) = @@ -550,12 +568,14 @@ vardef chem_c_text(expr txt, z) = % adapted copy of thelabel@ % draw a withcolor red ; enddef ; -vardef chem_ang (expr n, d) = - ((1-d)*chem_angle[n] + (1-chem_rotation)*90 + chem_start[n]) % no ; +vardef chem_ang (expr n, d) = + ((1 - d)*chem_angle[n] + if (n<0): -90 else: chem_rotation fi) % no ; enddef ; vardef chem_rot (expr n, d) = - chem_rotation := d ; + if (d <> 0) : + chem_rotation := chem_rotation + 180/(if (d=1): 8 else: abs(d) fi) ; + fi enddef ; vardef chem_adj (expr n, d) = @@ -579,9 +599,11 @@ vardef chem_mov (expr n, d) = currentpicture := currentpicture shifted - chem_shift ; chem_shift := origin ; else : - chem_move_p := (origin - 2*center(chem_b_path[n] rotated chem_ang(n,d+chem_initialmov[n]))) ; + %chem_move_p := (origin - 2*center(chem_b_path[n] rotated chem_ang(n,d+chem_initialmov[n]))) ; + chem_move_p := -chem_b_zero[n] rotated chem_ang(n,d+chem_initialmov[n]) ; currentpicture := currentpicture shifted chem_move_p ; chem_shift := chem_shift + chem_move_p ; + %if (n = 3) or (n = 5) : chem_rot(n, -n) ; fi fi ; enddef ; @@ -620,7 +642,6 @@ vardef chem_set (expr n, m) = chem_shift := chem_shift + chem_substituent_p ; chem_substituent := 0 ; fi ; - chem_rotation := chem_initialrot[m] ; enddef ; vardef chem_draw (expr n, path_fragment, from_point, to_point, linewidth, linecolor) = @@ -680,7 +701,7 @@ vardef chem_save = chem_shift := origin ; % chem_adjacent := 0 ; % chem_substituent := 0 ; -% chem_rotation := 1 ; +% chem_rotation := 0 ; currentpicture := nullpicture ; enddef ; @@ -695,12 +716,12 @@ vardef chem_restore = fi ; enddef ; -def chem_init_some(expr n, initialrot, initialmov, front) = +def chem_init_some(expr n) = + boolean front ; front := n < 0 ; chem_angle [n] := 360/abs(n) ; + chem_initialmov[n] := 0 ; chem_width [n] := chem_setting_scale * (chem_base_width/2) / sind(chem_angle[n]/2) ; - chem_start [n] := 0 ; - chem_initialrot[n] := initialrot ; - chem_initialmov[n] := initialmov ; + chem_dbl_offset[n] := chem_setting_scale * chem_base_width / 20 ; chem_b_path [n] := ((chem_width[n],0) rotated -(chem_angle[n]/2))-- ((chem_width[n],0) rotated +(chem_angle[n]/2)) ; chem_b_zero [n] := point 1 of chem_b_path [n] ; @@ -713,32 +734,38 @@ def chem_init_some(expr n, initialrot, initialmov, front) = chem_mr_zero [n] := point 1 of chem_mr_path[n] ; chem_pr_zero [n] := point 1 of chem_pr_path[n] ; chem_crz_zero [n] := point 1 of (chem_r_path[n] enlonged chem_center_offset) ; - chem_au_path [n] := subpath (0.2,0.8) of (chem_r_max[n] -- (chem_r_max[n] rotated chem_angle[n])) ; + chem_ztt_zero [n] := chem_text_max*(center chem_b_path[n]) ; + chem_zbt_zero [n] := chem_text_min*(center chem_b_path[n]) ; + chem_au_path [n] := chem_b_path[n] paralleled ((1-chem_text_max)*(abs(center chem_b_path[n]))) ; chem_ad_path [n] := reverse(chem_au_path[n]) ; chem_rt_zero [n] := (((chem_radical_max+chem_radical_min)/2)*chem_width[n],0) rotated (chem_angle[n]/2) ; chem_rtt_zero [n] := chem_rt_zero[n] rotated + 10 ; chem_rbt_zero [n] := chem_rt_zero[n] rotated - 10 ; chem_bx_path [n] := reverse(chem_b_zero[n] -- (chem_b_zero[n] rotated -chem_angle[n])) ; % ? NOT USED... chem_sb_path [n] := subpath (0.25,0.75) of chem_b_path[n] ; + chem_msb_path [n] := subpath (0.00,0.75) of chem_b_path[n] ; + chem_psb_path [n] := subpath (0.25,1.00) of chem_b_path[n] ; + chem_dbl_path [n] := chem_sb_path[n] paralleled - chem_dbl_offset[n] ; + chem_dbr_path [n] := chem_sb_path[n] paralleled + chem_dbl_offset[n] ; + chem_eb_path [n] := chem_sb_path[n] paralleled +2chem_dbl_offset[n] ; + chem_c_path [n] := (fullcircle scaled 2) + scaled (abs(center chem_b_path[n]) - 2chem_dbl_offset[n]) ; + chem_cc_path [n] := (subpath (0,(length chem_c_path[n])*(1-1/n)) of chem_c_path[n]) + rotated chem_angle[n] ; chem_s_path [n] := point 0 of chem_b_path[n] -- point 0 of (chem_b_path[n] rotated (2chem_angle[n])) ; chem_ss_path [n] := subpath (0.25,0.75) of (chem_s_path[n]) ; chem_pss_path [n] := subpath (0.00,0.75) of (chem_s_path[n]) ; chem_mss_path [n] := subpath (0.25,1.00) of (chem_s_path[n]) ; chem_mid_zero [n] := origin shifted (-.25chem_width[n],0) ; - chem_midst_path[n] := chem_mid_zero[n] -- (chem_width[n],0) rotated ( chem_angle[n] + chem_angle[n]/2) ; - chem_midsb_path[n] := chem_mid_zero[n] -- (chem_width[n],0) rotated (-chem_angle[n] - chem_angle[n]/2) ; - chem_midt_path [n] := subpath (0.25,1.00) of chem_midst_path [n] ; - chem_midb_path [n] := subpath (0.25,1.00) of chem_midsb_path [n] ; - chem_msb_path [n] := subpath (0.00,0.75) of chem_b_path[n] ; - chem_psb_path [n] := subpath (0.25,1.00) of chem_b_path[n] ; - chem_dbl_path [n] := chem_sb_path[n] shifted - (0.05[origin,center chem_sb_path[n]]) ; % parallel - chem_dbr_path [n] := chem_sb_path[n] shifted + (0.05[origin,center chem_sb_path[n]]) ; - chem_eb_path [n] := chem_sb_path[n] shifted - (0.25[origin,center chem_sb_path[n]]) ; + chem_midt_path[n] := chem_mid_zero[n] -- chem_b_zero[n] rotated (+chem_angle[n]*floor(n/4)) ; + chem_midb_path[n] := chem_mid_zero[n] -- chem_b_zero[n] rotated (-chem_angle[n]*ceiling(n/4)) ; + chem_midst_path [n] := subpath (0.25,1.00) of chem_midt_path [n] ; + chem_midsb_path [n] := subpath (0.25,1.00) of chem_midb_path [n] ; chem_sr_path [n] := chem_radical_min*chem_b_zero[n] -- chem_r_max[n] ; - chem_rl_path [n] := chem_r_path[n] paralleled (chem_base_width/20) ; - chem_rr_path [n] := chem_r_path[n] paralleled -(chem_base_width/20) ; - chem_srl_path [n] := chem_sr_path[n] paralleled (chem_base_width/20) ; - chem_srr_path [n] := chem_sr_path[n] paralleled -(chem_base_width/20) ; + chem_rl_path [n] := chem_r_path[n] paralleled +chem_dbl_offset[n] ; + chem_rr_path [n] := chem_r_path[n] paralleled -chem_dbl_offset[n] ; + chem_srl_path [n] := chem_sr_path[n] paralleled +chem_dbl_offset[n] ; + chem_srr_path [n] := chem_sr_path[n] paralleled -chem_dbl_offset[n] ; chem_br_path [n] := point 1 of chem_sb_path[n] -- point 0 of chem_sb_path[n] rotatedaround(point 1 of chem_sb_path[n], -4) -- point 0 of chem_sb_path[n] rotatedaround(point 1 of chem_sb_path[n], 4) -- cycle ; @@ -747,81 +774,80 @@ def chem_init_some(expr n, initialrot, initialmov, front) = chem_prb_path [n] := chem_rb_path[n] rotatedaround(chem_b_zero[n],-(180-chem_angle[n])/2) ; chem_msr_path [n] := chem_sr_path[n] rotatedaround(chem_b_zero[n],+(180-chem_angle[n])/2) ; chem_psr_path [n] := chem_sr_path[n] rotatedaround(chem_b_zero[n],-(180-chem_angle[n])/2) ; - % not yet ok: -% chem_c_path [n] := subpath (30/45, -30/45) of (fullcircle scaled (1.25*chem_circle_radius*chem_width[n])); -% chem_cc_path [n] := subpath (30/45,8-30/45) of (fullcircle rotated 90 scaled (1.25*chem_circle_radius*chem_width[n])); - chem_c_path [n] := subpath (30/45, -30/45) of (fullcircle scaled (chem_width[n])); - chem_cc_path [n] := subpath (30/45,8-30/45) of (fullcircle rotated 90 scaled (chem_width[n])); if (front) : - chem_bb_path [n] := chem_b_path[n] rotated -chem_angle[n] -- chem_b_path[n] -- chem_b_path[n] rotated chem_angle[n] -- - (reverse(chem_b_path[n] shortened (chem_base_width/20))) paralleled (chem_base_width/20) -- - cycle ; - chem_r_max [n] := chem_radical_max*chem_b_zero[n] ; + chem_bb_path [n] := chem_b_path[n] rotated -chem_angle[n] -- + chem_b_path[n] -- + chem_b_path[n] rotated +chem_angle[n] -- + (reverse(chem_b_path[n])) % shortened (.5chem_dbl_offset[n]))) + paralleled chem_dbl_offset[n] -- + cycle ; chem_mr_path [n] := origin -- origin shifted (0,-.25chem_base_width) ; chem_pr_path [n] := origin -- origin shifted (0,+.25chem_base_width) ; - chem_r_path [n] := point 1 of chem_mr_path[n] -- point 1 of chem_pr_path[n] ; chem_mr_zero [n] := point 1 of chem_mr_path[n] ; chem_pr_zero [n] := point 1 of chem_pr_path[n] ; + chem_r_path [n] := chem_mr_zero[n] -- chem_pr_zero[n] ; fi enddef ; -def chem_init_three = chem_init_some(3,1,2,false) ; enddef ; -def chem_init_four = chem_init_some(4,1,0,false) ; enddef ; -def chem_init_five = chem_init_some(5,1,0,false) ; enddef ; -def chem_init_six = chem_init_some(6,1,0,false) ; enddef ; -def chem_init_eight = chem_init_some(8,1,0,false) ; enddef ; -def chem_init_five_front = chem_init_some(-5,2,0,true) ; enddef ; -def chem_init_six_front = chem_init_some(-6,2,0,true) ; enddef ; +def chem_init_three = chem_init_some(3) ; enddef ; +def chem_init_four = chem_init_some(4) ; enddef ; +def chem_init_five = chem_init_some(5) ; enddef ; +def chem_init_six = chem_init_some(6) ; enddef ; +def chem_init_eight = chem_init_some(8) ; enddef ; +def chem_init_five_front = chem_init_some(-5) ; enddef ; +def chem_init_six_front = chem_init_some(-6) ; enddef ; % bb R -R R Z -RZ +RZ vardef chem_init_one = - chem_width [1] := chem_setting_scale * chem_base_width ; chem_angle [1] := 360/8 ; - chem_start [1] := 0 ; - chem_initialrot[1] := 1 ; chem_initialmov[1] := 0 ; + chem_width [1] := chem_setting_scale * chem_base_width ; + chem_dbl_offset[1] := chem_width[1] / 20 ; chem_b_path [1] := origin -- (chem_width[1],0) ; chem_b_zero [1] := point 1 of chem_b_path[1] ; - chem_r_min [1] := chem_radical_min*chem_b_zero[1] ; chem_r_max [1] := chem_radical_max*chem_b_zero[1] ; - chem_r_path [1] := (.5*chem_width[1],0) -- (1.25*chem_width[1],0) ; - chem_r_zero [1] := point 1 of chem_r_path [1] ; - chem_crz_zero [1] := chem_r_zero[1] enlonged chem_center_offset ; - chem_e_path [1] := (.5*chem_width[1],-.25*chem_width[1]) -- (.5*chem_width[1],.25*chem_width[1]) ; - chem_sb_path [1] := subpath(.25,.75) of chem_b_path [1] ; - chem_msb_path [1] := subpath (0.00,0.75) of chem_b_path[1] ; - chem_psb_path [1] := subpath (0.25,1.00) of chem_b_path[1] ; - chem_ddt_path [1] := subpath(0,.4) of chem_r_path [1] ; - chem_ddb_path [1] := subpath(.6,1) of chem_r_path [1] ; - chem_ldt_path [1] := chem_ddt_path [1] shifted (0,-.1chem_width[1]) ; % parallel - chem_ldb_path [1] := chem_ddb_path [1] shifted (0,-.1chem_width[1]) ; - chem_rdt_path [1] := chem_ddt_path [1] shifted (0, .1chem_width[1]) ; - chem_rdb_path [1] := chem_ddb_path [1] shifted (0, .1chem_width[1]) ; + chem_r_path [1] := (center chem_b_path[1]) -- (chem_radical_min*chem_b_zero[1]) ; + chem_r_zero [1] := point 1 of chem_r_path[1] ; + chem_crz_zero [1] := chem_r_zero[1] enlonged chem_center_offset ; % ??? + chem_e_path [1] := ((1,-.5) -- (1,+.5)) scaled (.25chem_width[1]) ; + chem_sb_path [1] := subpath (0.25,0.75) of chem_b_path[1] ; + chem_msb_path [1] := subpath (0, 0.75) of chem_b_path[1] ; + chem_psb_path [1] := subpath (0.25,1) of chem_b_path[1] ; + chem_ddt_path [1] := subpath (0, 0.4) of chem_sb_path[1] ; + chem_ddb_path [1] := subpath (0.6, 1) of chem_sb_path[1] ; + chem_dbl_path [1] := chem_sb_path[1] paralleled -1chem_dbl_offset[1] ; + chem_dbr_path [1] := chem_sb_path[1] paralleled +1chem_dbl_offset[1] ; + chem_tbl_path [1] := chem_sb_path[1] paralleled -2chem_dbl_offset[1] ; + chem_tbr_path [1] := chem_sb_path[1] paralleled +2chem_dbl_offset[1] ; + chem_ldt_path [1] := chem_ddt_path[1] paralleled -2chem_dbl_offset[1] ; + chem_ldb_path [1] := chem_ddb_path[1] paralleled -2chem_dbl_offset[1] ; + chem_rdt_path [1] := chem_ddt_path[1] paralleled +2chem_dbl_offset[1] ; + chem_rdb_path [1] := chem_ddb_path[1] paralleled +2chem_dbl_offset[1] ; + chem_n_zero [1] := center chem_b_path[1] ; + chem_ztt_zero [1] := chem_n_zero[1] rotated +.5chem_angle[1] ; + chem_zbt_zero [1] := chem_n_zero[1] rotated -.5chem_angle[1] ; save pr ; pair pr[] ; - pr0 := point 0 of chem_r_path[1] ; - pr1 := point 1 of chem_r_path[1] ; - chem_bb_path [1] := pr0 -- (pr1 rotatedaround(pr0,-chem_bb_angle)) -- (pr1 rotatedaround(pr0,chem_bb_angle)) -- cycle ; + pr0 := point 0 of chem_sb_path[1] ; + pr1 := point 1 of chem_sb_path[1] ; + chem_bb_path [1] := pr0 -- (pr1 rotatedaround(pr0,-chem_bb_angle)) -- + (pr1 rotatedaround(pr0,+chem_bb_angle)) -- cycle ; chem_oe_path [1] := ((-20,0)--(10,0){up}..(20,10)..(30,0)..(40,-10)..(50.0,0)..(60,10)..(70,0)..(80,-10)..{up}(90,0)--(120,0)) - xsized (.75*chem_width[1]) shifted pr0 ; - chem_rt_zero [1] := point .5 of chem_r_path[1] ; - chem_rtt_zero [1] := chem_rt_zero[1] rotated + (chem_angle[1]/2) ; - chem_rbt_zero [1] := chem_rt_zero[1] rotated - (chem_angle[1]/2) ; - % added by Alan Braslau (adapted to use shared variables): + xsized (abs(pr1-pr0)) shifted pr0 ; save p ; pair p[] ; p0 := pr1 rotatedaround(pr0, -chem_bd_angle) ; p1 := pr1 rotatedaround(pr0, +chem_bd_angle) ; - p2 := p0 shifted - pr1 ; - p3 := p1 shifted - pr1 ; + p2 := p0 shifted -pr1 ; + p3 := p1 shifted -pr1 ; chem_bd_path [1] := p0 -- p1 for i=chem_bd_n downto 0 : - -- p2 shifted (i/chem_bd_n)[pr1,pr0] - -- p3 shifted (i/chem_bd_n)[pr1,pr0] + -- p2 shifted (i/chem_bd_n)[pr1,pr0] + -- p3 shifted (i/chem_bd_n)[pr1,pr0] endfor ; chem_bw_path [1] := for i=0 upto chem_bw_n - 1 : - ((i) /chem_bw_n)[pr0,pr1] .. ((i+.25)/chem_bw_n)[pr0,pr1] shifted p2 .. + ((i) /chem_bw_n)[pr0,pr1] .. ((i+.25)/chem_bw_n)[pr0,pr1] shifted +p2 .. ((i+.50)/chem_bw_n)[pr0,pr1] .. ((i+.75)/chem_bw_n)[pr0,pr1] shifted -p2 .. endfor pr1 ; enddef ; |