From bc8667da1c26a3ca8db3fe379e6a00544fa02e8a Mon Sep 17 00:00:00 2001 From: Marius Date: Thu, 6 Oct 2011 00:40:15 +0300 Subject: beta 2011.10.05 23:32 --- metapost/context/base/metafun.mpiv | 26 +- metapost/context/base/mp-butt.mp | 108 ++-- metapost/context/base/mp-char.mp | 21 + metapost/context/base/mp-flow.mpiv | 1020 ++++++++++++++++++++++++++++++++++++ metapost/context/base/mp-shap.mp | 471 +++++++---------- 5 files changed, 1291 insertions(+), 355 deletions(-) create mode 100644 metapost/context/base/mp-flow.mpiv (limited to 'metapost') diff --git a/metapost/context/base/metafun.mpiv b/metapost/context/base/metafun.mpiv index 89a7c3935..c58d5dc15 100644 --- a/metapost/context/base/metafun.mpiv +++ b/metapost/context/base/metafun.mpiv @@ -17,21 +17,21 @@ %D copy. input mp-base.mpiv ; -input mp-tool.mp ; +input mp-tool.mp ; input mp-core.mpiv ; -input mp-page.mp ; -input mp-text.mp ; -input mp-txts.mp ; -input mp-shap.mp ; -input mp-butt.mp ; -input mp-char.mp ; -input mp-step.mp ; -input mp-grph.mp ; -input mp-figs.mp ; +input mp-page.mp ; +input mp-text.mp ; +input mp-txts.mp ; +input mp-butt.mp ; +% mp-shap.mp ; % there no need to always load this +% mp-char.mp ; % there no need to always load this +input mp-step.mp ; % there no need to always load this (todo) +input mp-grph.mp ; +input mp-figs.mp ; input mp-mlib.mpiv ; -input mp-chem.mpiv ; -input mp-grid.mp ; -input mp-func.mp ; +input mp-chem.mpiv ; % there no need to always load this (todo) +input mp-grid.mp ; +input mp-func.mp ; string metafunversion ; diff --git a/metapost/context/base/mp-butt.mp b/metapost/context/base/mp-butt.mp index cf580211e..3ae3dc983 100644 --- a/metapost/context/base/mp-butt.mp +++ b/metapost/context/base/mp-butt.mp @@ -1,6 +1,6 @@ %D \module %D [ file=mp-butt.mp, -%D version=2000.05.31, +%D version=2000.05.31, %D title=\CONTEXT\ \METAPOST\ graphics, %D subtitle=buttons, %D author=Hans Hagen, @@ -8,68 +8,64 @@ %D copyright={PRAGMA / Hans Hagen \& Ton Otten}] %C %C This module is part of the \CONTEXT\ macro||package and is -%C therefore copyrighted by \PRAGMA. See licen-en.pdf for -%C details. +%C therefore copyrighted by \PRAGMA. See licen-en.pdf for +%C details. -if unknown context_tool : input mp-tool ; fi ; -if known context_butt : endinput ; fi ; +if unknown context_tool : input mp-tool ; fi ; +if known context_butt : endinput ; fi ; -boolean context_butt ; context_butt := true ; +boolean context_butt ; context_butt := true ; -def some_button (expr button_type , - button_size , - button_linecolor , - button_fillcolor ) = +def some_button (expr button_type, button_size, button_linecolor, button_fillcolor) = - numeric button_linewidth ; button_linewidth := button_size/10 ; + numeric button_linewidth ; button_linewidth := button_size/10 ; - drawoptions (withpen pencircle scaled button_linewidth - withcolor button_linecolor) ; + drawoptions (withpen pencircle scaled button_linewidth withcolor button_linecolor) ; - path p ; p := unitsquare scaled button_size ; - numeric d ; d := button_size ; - numeric l ; l := button_linewidth ; + path p ; p := unitsquare scaled button_size ; + numeric d ; d := button_size ; + numeric l ; l := button_linewidth ; - fill p withcolor button_fillcolor ; draw p ; + fill p withcolor button_fillcolor ; draw p ; - if button_type=101 : - draw (d-2l,2l)--(2l,.5d)--(d-2l,d-2l)--cycle ; - elseif button_type=102 : - draw (2l,2l)--(d-2l,.5d)--(2l,d-2l)--cycle ; - elseif button_type=103 : - for i=2l step 2l until d-2l : - draw (2l,i)--(2l ,i) ; - draw (4l,i)--(d-2l,i) ; - endfor ; - elseif button_type=104 : - for i=2l step 2l until d-2l : - draw (2l ,i)--(d/2-l,i) ; - draw (d/2+l,i)--(d-2l ,i) ; - endfor ; - elseif button_type=105 : - fill fullcircle scaled (.2d) shifted (.5d,.7d) ; - fill fullcircle xscaled (.6d) yscaled d shifted (.5d,0) ; - clip currentpicture to p ; - draw p ; - elseif button_type=106 : - draw (2l,2l)--(d-2l,d-2l) ; - draw (d-2l,2l)--(2l,d-2l) ; - elseif button_type=107 : - p := (3l,d-2l)--(d-3l,d-2l)--(.5d,4l)--cycle ; - fill p ; draw p ; - draw (.5d,2l) ; - elseif button_type=108 : - draw (.5d,2l)--(d-2l,d-2l)--(2l,d-2l)--cycle ; - elseif button_type=109 : - draw (.5d,d-2l)--(d-2l,2l)--(2l,2l)--cycle ; - elseif button_type=110 : - button_linewidth := button_linewidth/2 ; - draw p enlarged (-2l,-l) ; - for i=2l step l until d-2l : - draw (3l,i)--(d-3l,i) ; - endfor ; - fi ; + if button_type = 101 : + draw (d-2l,2l)--(2l,.5d)--(d-2l,d-2l)--cycle ; + elseif button_type = 102 : + draw (2l,2l)--(d-2l,.5d)--(2l,d-2l)--cycle ; + elseif button_type = 103 : + for i=2l step 2l until d-2l : + draw (2l,i)--(2l ,i) ; + draw (4l,i)--(d-2l,i) ; + endfor ; + elseif button_type = 104 : + for i=2l step 2l until d-2l : + draw (2l ,i)--(d/2-l,i) ; + draw (d/2+l,i)--(d-2l ,i) ; + endfor ; + elseif button_type = 105 : + fill fullcircle scaled (.2d) shifted (.5d,.7d) ; + fill fullcircle xscaled (.6d) yscaled d shifted (.5d,0) ; + clip currentpicture to p ; + draw p ; + elseif button_type = 106 : + draw (2l,2l)--(d-2l,d-2l) ; + draw (d-2l,2l)--(2l,d-2l) ; + elseif button_type = 107 : + p := (3l,d-2l)--(d-3l,d-2l)--(.5d,4l)--cycle ; + fill p ; draw p ; + draw (.5d,2l) ; + elseif button_type = 108 : + draw (.5d,2l)--(d-2l,d-2l)--(2l,d-2l)--cycle ; + elseif button_type = 109 : + draw (.5d,d-2l)--(d-2l,2l)--(2l,2l)--cycle ; + elseif button_type = 110 : + button_linewidth := button_linewidth/2 ; + draw p enlarged (-2l,-l) ; + for i=2l step l until d-2l : + draw (3l,i)--(d-3l,i) ; + endfor ; + fi ; -enddef ; +enddef ; -endinput ; +endinput ; diff --git a/metapost/context/base/mp-char.mp b/metapost/context/base/mp-char.mp index fd9e33848..3a7a1d939 100644 --- a/metapost/context/base/mp-char.mp +++ b/metapost/context/base/mp-char.mp @@ -111,6 +111,7 @@ def new_chart = color xydraw [][] ; numeric xyline [][] ; boolean xypeep [][] ; + picture xypicture[][] ; numeric cpath ; cpath := 0 ; path cpaths [] ; @@ -233,6 +234,15 @@ def flush_shapes = endfor ; enddef ; +def flush_pictures = + for x=1 upto max_x : + for y=1 upto max_y : + flush_picture (x, y) ; + endfor ; + endfor ; +enddef ; + + def draw_connection_point (expr x, y, z) = pickup pencircle scaled if (z=0): 2 fi xyline[x][y] ; drawdot xy_bottom(x,y,z,false) scaled_to_grid withcolor (1,0,0) ; @@ -450,6 +460,16 @@ def draw_midpoint (expr n) = endgroup ; enddef ; +def flush_picture(expr x, y) = + if known xypicture[x][y]: + draw xypicture[x][y] shifted xy_offset((x+0.5)*grid_width,(max_y-y+1.5)*grid_height) ; + fi ; +enddef ; + +def chart_draw_picture(expr x, y, p) = + xypicture[x][y] := p ; +enddef ; + boolean reverse_connection ; reverse_connection := false ; vardef up_on_grid (expr n) = @@ -911,6 +931,7 @@ enddef ; def end_chart = flush_shapes ; flush_connections ; + flush_pictures ; cmin_x := cmin_x ; cmax_x := cmin_x+cmax_x ; cmin_y := cmin_y-1 ; diff --git a/metapost/context/base/mp-flow.mpiv b/metapost/context/base/mp-flow.mpiv new file mode 100644 index 000000000..c134f28d8 --- /dev/null +++ b/metapost/context/base/mp-flow.mpiv @@ -0,0 +1,1020 @@ +%D \module +%D [ file=mp-char.mp, +%D version=2011.10.1, % 1998.10.10, +%D title=\CONTEXT\ \METAPOST\ graphics, +%D subtitle=charts, +%D author=Hans Hagen, +%D date=\currentdate, +%D copyright={PRAGMA / Hans Hagen \& Ton Otten}] +%C +%C This module is part of the \CONTEXT\ macro||package and is +%C therefore copyrighted by \PRAGMA. See licen-en.pdf for +%C details. + +%D This is ancient code .. but I see no need to rewrite it. + +if unknown context_tool : input mp-tool ; fi ; +if unknown context_shap : input mp-shap ; fi ; +if known context_flow : endinput ; fi ; + +boolean context_flow ; context_flow := true ; + +%D settings + +numeric flow_grid_width ; flow_grid_width := 60pt ; +numeric flow_shape_width ; flow_shape_width := 45pt ; +numeric flow_grid_height ; flow_grid_height := 40pt ; +numeric flow_shape_height ; flow_shape_height := 30pt ; +numeric flow_chart_offset ; flow_chart_offset := 2pt ; +color flow_chart_background_color ; flow_chart_background_color := white ; +boolean flow_show_mid_points ; flow_show_mid_points := false ; +boolean flow_show_con_points ; flow_show_con_points := false ; +boolean flow_show_all_points ; flow_show_all_points := false ; +numeric flow_shape_line_width ; flow_shape_line_width := 2pt ; +color flow_shape_line_color ; flow_shape_line_color := .5white ; +color flow_shape_fill_color ; flow_shape_fill_color := .9white ; +color flow_connection_line_color ; flow_connection_line_color := .2white ; + +numeric flow_connection_line_width ; flow_connection_line_width := flow_shape_line_width ; + +numeric flow_connection_smooth_size ; flow_connection_smooth_size := 5pt ; +numeric flow_connection_arrow_size ; flow_connection_arrow_size := 4pt ; +numeric flow_connection_dash_size ; flow_connection_dash_size := 3pt ; + +numeric flow_max_x ; flow_max_x := 6 ; +numeric flow_max_y ; flow_max_y := 4 ; + +boolean flow_smooth ; flow_smooth := true ; +boolean flow_peepshape ; flow_peepshape := false ; +boolean flow_arrowtip ; flow_arrowtip := true ; +boolean flow_dashline ; flow_dashline := false ; +boolean flow_forcevalid ; flow_forcevalid := false ; +boolean flow_touchshape ; flow_touchshape := false ; +boolean flow_showcrossing ; flow_showcrossing := false ; +boolean flow_reverse_y ; flow_reverse_y := true ; + +picture flow_dash_pattern ; flow_dash_pattern := nullpicture ; + +numeric flow_shape_node ; flow_shape_node := 0 ; +numeric flow_shape_action ; flow_shape_action := 24 ; +numeric flow_shape_procedure ; flow_shape_procedure := 5 ; +numeric flow_shape_product ; flow_shape_product := 12 ; +numeric flow_shape_decision ; flow_shape_decision := 14 ; +numeric flow_shape_archive ; flow_shape_archive := 19 ; +numeric flow_shape_loop ; flow_shape_loop := 35 ; +numeric flow_shape_wait ; flow_shape_wait := 6 ; +numeric flow_shape_subprocedure ; flow_shape_subprocedure := 20 ; +numeric flow_shape_singledocument ; flow_shape_singledocument := 32 ; +numeric flow_shape_multidocument ; flow_shape_multidocument := 33 ; +numeric flow_shape_right ; flow_shape_right := 66 ; +numeric flow_shape_left ; flow_shape_left := 67 ; +numeric flow_shape_up ; flow_shape_up := 68 ; +numeric flow_shape_down ; flow_shape_down := 69 ; + +% vardef some_shape_path (expr type) == imported from mp-shap + +def flow_show_shapes(expr n) = + flow_begin_chart(n,8,10) ; + flow_show_con_points := true ; + for i=0 upto 7 : + for j=0 upto 9 : + flow_new_shape(i+1,j+1,i*10+j); + endfor ; + endfor ; + flow_end_chart ; +enddef ; + +%D connections + +def flow_new_chart = + + flow_grid_width := 60pt ; + flow_shape_width := 45pt ; + flow_grid_height := 40pt ; + flow_shape_height := 30pt ; + flow_chart_offset := 2pt ; + flow_chart_background_color := white ; + flow_show_mid_points := false ; + flow_show_con_points := false ; + flow_show_all_points := false ; + flow_shape_line_width := 2pt ; + flow_shape_line_color := .5white ; + flow_shape_fill_color := .9white ; + flow_connection_line_color := .2white ; + flow_connection_line_width := flow_shape_line_width ; + flow_connection_smooth_size := 5pt ; + flow_connection_arrow_size := 4pt ; + flow_connection_dash_size := 3pt ; + + flow_max_x := 6 ; + flow_max_y := 4 ; + + flow_smooth := true ; + flow_peepshape := false ; + flow_arrowtip := true ; + flow_dashline := false ; + flow_forcevalid := false ; + flow_touchshape := false ; + flow_showcrossing := false ; + flow_reverse_y := true ; + + flow_dash_pattern := nullpicture ; + + numeric flow_xypoint ; flow_xypoint := 0 ; + numeric flow_cpath ; flow_cpath := 0 ; + + pair flow_xypoints [] ; + boolean flow_xyfree [][] ; + path flow_xypath [][] ; + numeric flow_xysx [][] ; + numeric flow_xysy [][] ; + color flow_xyfill [][] ; + color flow_xydraw [][] ; + numeric flow_xyline [][] ; + boolean flow_xypeep [][] ; + picture flow_xytext [][] ; + picture flow_xylabel_l[][] ; + picture flow_xylabel_r[][] ; + picture flow_xylabel_t[][] ; + picture flow_xylabel_b[][] ; + picture flow_xyexit_l [][] ; + picture flow_xyexit_r [][] ; + picture flow_xyexit_t [][] ; + picture flow_xyexit_b [][] ; + path flow_cpaths [] ; + numeric flow_cline [] ; + color flow_ccolor [] ; + boolean flow_carrow [] ; + boolean flow_cdash [] ; + boolean flow_ccross [] ; + + picture flow_tpicture[][] ; + picture flow_bpicture[][] ; + picture flow_lpicture[][] ; + picture flow_rpicture[][] ; + + predefined_shapes[61] := (fullcircle scaled (1.5*predefined_shapes_yradius) xscaled (flow_grid_height/flow_grid_width)) ; + predefined_shapes[62] := (fullcircle scaled (2.0*predefined_shapes_yradius) xscaled (flow_grid_height/flow_grid_width)) ; + +enddef ; + +flow_new_chart ; + +def flow_y_pos(expr y) = + if flow_reverse_y : + flow_max_y + 1 - y + else : + y + fi +enddef ; + +def flow_initialize_grid(expr maxx, maxy) = + flow_max_x := maxx ; + flow_max_y := maxy ; + flow_dsp_x := 0 ; + flow_dsp_y := 0 ; + for x=1 upto flow_max_x : + for y=1 upto flow_max_y : + flow_xyfree[x][y] := true ; + flow_xyfill[x][y] := flow_shape_fill_color ; + flow_xydraw[x][y] := flow_shape_line_color ; + flow_xyline[x][y] := flow_shape_line_width ; + endfor ; + endfor ; +enddef ; + +def flow_scaled_to_grid = + xscaled flow_grid_width yscaled flow_grid_height +enddef ; + +def flow_xy_offset(expr x, y) = + (x+.5,y+.5) +enddef ; + +def flow_draw_shape(expr x, yy, p, sx, sy) = + begingroup ; + save y ; numeric y ; + y := flow_y_pos(yy) ; + flow_xypath [x][y] := (p xscaled sx yscaled sy) shifted flow_xy_offset(x,y) ; + flow_xyfree [x][y] := false ; + flow_xysx [x][y] := sx ; + flow_xysy [x][y] := sy ; + flow_xyfill [x][y] := flow_shape_fill_color ; + flow_xydraw [x][y] := flow_shape_line_color ; + flow_xyline [x][y] := flow_shape_line_width ; + flow_xypeep [x][y] := flow_peepshape ; + endgroup ; +enddef ; + +vardef flow_i_point (expr x, y, p, t) = + begingroup ; + save q, ok ; pair q ; boolean ok ; + q := flow_xypath[x][y] intersection_point ((p) shifted flow_xy_offset(x,y)) ; + ok := true ; + if not ok : + message (t & " of shape (" & decimal x & "," & decimal y & ") limited") ; + fi ; + q + endgroup +enddef ; + +vardef flow_trimmed (expr x, y, z, t) = + if flow_touchshape and t : + flow_xyline[x][y]/z + else : + epsilon + fi +enddef ; + +numeric flow_zfactor ; flow_zfactor := 1/3 ; + +vardef flow_xy_bottom (expr x, y, z, t) = + flow_i_point(x, y, ((0,0)--(0,-2)) shifted (flow_zfactor*z*flow_xysx[x][y],0), "bottom") + shifted(0,-flow_trimmed(x,y,flow_grid_height,t)) +enddef ; + +vardef flow_xy_top (expr x, y, z, t) = + flow_i_point (x, y, ((0,0)--(0,2)) shifted (flow_zfactor*z*flow_xysx[x][y],0), "top") + shifted(0,flow_trimmed(x,y,flow_grid_height,t)) +enddef ; + +vardef flow_xy_left (expr x, y, z, t) = + flow_i_point (x, y, ((0,0)--(-2,0)) shifted (0,flow_zfactor*z*flow_xysy[x][y]), "left") + shifted(-flow_trimmed(x,y,flow_grid_width,t),0) +enddef ; + +vardef flow_xy_right (expr x, y, z, t) = + flow_i_point (x, y, ((0,0)--(2,0)) shifted (0,flow_zfactor*z*flow_xysy[x][y]), "right") + shifted(flow_trimmed(x,y,flow_grid_width,t),0) +enddef ; + +def flow_flush_shapes = + for x=1 upto flow_max_x : + for y=1 upto flow_max_y : + flow_flush_shape(x, y) ; + endfor ; + endfor ; +enddef ; + +def flow_flush_pictures = + for x=1 upto flow_max_x : + for y=1 upto flow_max_y : + flow_flush_picture(x, y) ; + endfor ; + endfor ; +enddef ; + +def flow_draw_connection_point(expr x, y, z) = + pickup pencircle scaled if (z=0): 2 fi flow_xyline[x][y] ; + drawdot flow_xy_bottom(x,y,z,false) flow_scaled_to_grid withcolor (1,0,0) ; + drawdot flow_xy_top (x,y,z,false) flow_scaled_to_grid withcolor (0,1,0) ; + drawdot flow_xy_left (x,y,z,false) flow_scaled_to_grid withcolor (0,0,1) ; + drawdot flow_xy_right (x,y,z,false) flow_scaled_to_grid withcolor (1,1,0) ; +enddef ; + +def flow_flush_shape(expr x, yy) = + begingroup ; + save y ; numeric y ; + y := flow_y_pos(yy) ; + if not flow_xyfree[x][y] : + pickup pencircle scaled flow_xyline[x][y] ; + if flow_xypeep[x][y] : + fill (flow_xypath[x][y] peepholed (unitsquare shifted (x,y))) + flow_scaled_to_grid withpen pencircle scaled 0 + withcolor flow_chart_background_color ; + else : + fill flow_xypath[x][y] flow_scaled_to_grid withcolor flow_xyfill[x][y] ; + fi ; + draw flow_xypath[x][y] flow_scaled_to_grid withcolor flow_xydraw[x][y] ; + if flow_show_con_points or flow_show_all_points : + flow_draw_connection_point(x, y, 0) ; + fi ; + if flow_show_all_points : + for i=-1 upto 1 : + flow_draw_connection_point(x, y, i) ; + endfor ; + fi ; + fi ; + endgroup ; +enddef ; + +vardef flow_points_initialized(expr xfrom, yfrom, xto, yto, n) = + if not flow_xyfree[xfrom][yfrom] and not flow_xyfree[xto][yto] : + flow_xypoint := n ; true + else : + flow_xypoint := 0 ; false + fi +enddef ; + +def flow_collapse_points = % this is now an mp-tool macro + begingroup ; + % remove redundant points + save n ; numeric n ; + n := 1 ; + for i=2 upto flow_xypoint : + if not (flow_xypoints[i] = flow_xypoints[n]) : + n := n + 1 ; + flow_xypoints[n] := flow_xypoints[i] + fi ; + endfor ; + flow_xypoint := n ; + % make straight lines + if flow_xypoints[2] = flow_xypoints[flow_xypoint-1] : + flow_xypoints[3] := flow_xypoints[flow_xypoint] ; + flow_xypoint := 3 ; + fi ; + endgroup ; +enddef ; + +vardef flow_smooth_connection(expr a,b) = + if ypart a = ypart b : + a shifted ( if xpart a >= xpart b : - fi (flow_connection_smooth_size/flow_grid_width ),0) + else : + a shifted (0,if ypart a >= ypart b : - fi (flow_connection_smooth_size/flow_grid_height) ) + fi +enddef ; + +vardef flow_trim_points = + begingroup + save p, a, b, d, i ; numeric a, b ; path p ; pair d ; + p := for i=1 upto flow_xypoint-1 : flow_xypoints[i]-- endfor flow_xypoints[flow_xypoint] ; + if flow_touchshape : + a := flow_shape_line_width/flow_grid_width ; + b := flow_shape_line_width/flow_grid_height ; + else : + a := epsilon ; + b := epsilon ; + fi ; + d := direction infinity of p ; + flow_xypoints[flow_xypoint] := flow_xypoints[flow_xypoint] shifted + if xpart d < 0 : (+a,0) ; + elseif xpart d > 0 : (-a,0) ; + elseif ypart d < 0 : (0,+b) ; + elseif ypart d > 0 : (0,-b) ; + else : origin ; + fi ; + d := direction 0 of p ; + flow_xypoints[1] := flow_xypoints[1] shifted + if xpart d < 0 : (-a,0) ; + elseif xpart d > 0 : (+a,0) ; + elseif ypart d < 0 : (0,-b) ; + elseif ypart d > 0 : (0,+b) ; + else : origin ; + fi ; + endgroup +enddef ; + +vardef flow_trim_points = enddef ; + +vardef flow_connection_path = + if flow_reverse_connection : reverse fi (flow_xypoints[1] -- + for i=2 upto flow_xypoint-1 : + if flow_smooth : + flow_smooth_connection(flow_xypoints[i],flow_xypoints[i-1]) .. + controls flow_xypoints[i] and flow_xypoints[i] .. + flow_smooth_connection(flow_xypoints[i],flow_xypoints[i+1]) -- + else : + flow_xypoints[i] -- + fi + endfor + flow_xypoints[flow_xypoint]) +enddef ; + +def flow_draw_connection = + if flow_xypoint > 0 : + flow_collapse_points ; + flow_trim_points ; + flow_cpath := flow_cpath + 1 ; + flow_cpaths[flow_cpath] := flow_connection_path flow_scaled_to_grid ; + flow_cline[flow_cpath] := flow_connection_line_width ; + flow_ccolor[flow_cpath] := flow_connection_line_color ; + flow_carrow[flow_cpath] := flow_arrowtip ; + flow_cdash[flow_cpath] := flow_dashline ; + flow_ccross[flow_cpath] := flow_showcrossing ; + else : + message("no connection defined") ; + fi ; + flow_reverse_connection := false ; +enddef ; + +def flow_flush_connections = % protect locals + begingroup ; + save ip, crossing, cp ; numeric ip ; boolean crossing ; path cp ; + ahlength := flow_connection_arrow_size ; + flow_dash_pattern := dashpattern(on flow_connection_dash_size off flow_connection_dash_size) ; + for i=1 upto flow_cpath : + if flow_ccross[i] : + crossing := false ; + for j=1 upto i : + if not (point infinity of flow_cpaths[i] = point infinity of flow_cpaths[j]) : + ip := flow_cpaths[i] intersection_point flow_cpaths[j] ; + if intersection_found : crossing := true fi ; + fi ; + endfor ; + if crossing : + pickup pencircle scaled 2flow_cline[i] ; + cp := flow_cpaths[i] ; + cp := cp cutbefore point .05 length cp of cp ; + cp := cp cutafter point .95 length cp of cp ; + draw cp withcolor flow_chart_background_color ; + fi ; + fi ; + pickup pencircle scaled flow_cline[i] ; + if flow_carrow[i] : + if flow_cdash[i] : + drawarrow flow_cpaths[i] withcolor flow_ccolor[i] dashed flow_dash_pattern ; + else : + drawarrow flow_cpaths[i] withcolor flow_ccolor[i] ; + fi ; + else : + if flow_cdash[i] : + draw flow_cpaths[i] withcolor flow_ccolor[i] dashed flow_dash_pattern ; + else : + draw flow_cpaths[i] withcolor flow_ccolor[i] ; + fi ; + fi ; + flow_draw_midpoint(i) ; + endfor ; + endgroup ; +enddef ; + +def flow_draw_midpoint (expr n) = + begingroup + save p ; pair p ; + p := point .5*length(flow_cpaths[n]) of flow_cpaths[n]; + pickup pencircle scaled 2flow_cline[n] ; + if flow_show_mid_points : + drawdot p withcolor .7white ; + fi ; + endgroup ; +enddef ; + +def flow_flush_picture(expr x, yy) = + begingroup ; save y ; numeric y ; + y := flow_y_pos(yy) ; + if known flow_xytext[x][y] : + begingroup ; + % flow_xypath[x][y] + save p, offset ; path p ; pair offset ; + offset := flow_xy_offset((x+0.5)*flow_grid_width,(flow_max_y-y+1.5)*flow_grid_height) ; + offset := offset shifted (-flow_xyline[x][y]/4,-flow_xyline[x][y]/4) ; % terrible hack (some compensation) + p := fullsquare + xscaled flow_grid_width + yscaled flow_grid_height + shifted offset ; + if known flow_xytext[x][y]: + draw flow_xytext[x][y] shifted offset ; + fi ; + if known flow_xylabel_t[x][y] : + label.urt(flow_xylabel_t[x][y],0.5[ulcorner p,urcorner p]) ; + fi ; + if known flow_xylabel_b[x][y] : + label.lrt(flow_xylabel_b[x][y],0.5[llcorner p,lrcorner p]) ; + fi ; + if known flow_xylabel_l[x][y] : + label.ulft(flow_xylabel_l[x][y],0.5[ulcorner p,llcorner p]) ; + fi ; + if known flow_xylabel_r[x][y] : + label.urt (flow_xylabel_r[x][y],0.5[urcorner p,lrcorner p]) ; + fi ; + if known flow_xyexit_t[x][y] : + label.top(flow_xyexit_t[x][y],0.5[ulcorner p,urcorner p] shifted (0, flow_grid_height/2)) ; + fi ; + if known flow_xyexit_b[x][y] : + label.bot(flow_xyexit_b[x][y],0.5[llcorner p,lrcorner p] shifted (0,-flow_grid_height/2)) ; + fi ; + if known flow_xyexit_l[x][y] : + label.lft(flow_xyexit_l[x][y],0.5[ulcorner p,llcorner p] shifted (-flow_grid_width/2,0)) ; + fi ; + if known flow_xyexit_r[x][y] : + label.rt (flow_xyexit_r[x][y],0.5[urcorner p,lrcorner p] shifted ( flow_grid_width/2,0)) ; + fi ; + endgroup ; + fi ; + endgroup ; +enddef ; + +def flow_chart_draw_text(expr x, y, p) = + flow_xytext[x][y] := p ; +enddef ; + +def flow_chart_draw_label_t(expr x, y, p) = flow_xylabel_t[x][y] := p ; enddef ; +def flow_chart_draw_label_b(expr x, y, p) = flow_xylabel_b[x][y] := p ; enddef ; +def flow_chart_draw_label_l(expr x, y, p) = flow_xylabel_l[x][y] := p ; enddef ; +def flow_chart_draw_label_r(expr x, y, p) = flow_xylabel_r[x][y] := p ; enddef ; + +def flow_chart_draw_exit_t (expr x, y, p) = flow_xyexit_t [x][y] := p ; enddef ; +def flow_chart_draw_exit_b (expr x, y, p) = flow_xyexit_b [x][y] := p ; enddef ; +def flow_chart_draw_exit_l (expr x, y, p) = flow_xyexit_l [x][y] := p ; enddef ; +def flow_chart_draw_exit_r (expr x, y, p) = flow_xyexit_r [x][y] := p ; enddef ; + +boolean flow_reverse_connection ; flow_reverse_connection := false ; + +vardef flow_up_on_grid (expr n) = + (xpart flow_xypoints[n],(ypart flow_xypoints[n]+1) div 1) +enddef ; + +vardef flow_down_on_grid (expr n) = + (xpart flow_xypoints[n],(ypart flow_xypoints[n]) div 1) +enddef ; + +vardef flow_left_on_grid (expr n) = + ((xpart flow_xypoints[n]) div 1, ypart flow_xypoints[n]) +enddef ; + +vardef flow_right_on_grid (expr n) = + ((xpart flow_xypoints[n]+1) div 1, ypart flow_xypoints[n]) +enddef ; + +vardef flow_x_on_grid (expr n, xfrom, xto, zfrom) = + if (xfrom = xto) and not (zfrom = 0) : + if (zfrom=1) : flow_right_on_grid(2) else : flow_left_on_grid(2) fi + elseif xpart flow_xypoints[1] < xpart flow_xypoints[6] : + flow_right_on_grid(n) + else : + flow_left_on_grid(n) + fi +enddef ; + +vardef y_on_grid (expr n, yfrom, yto, zfrom) = + if (yfrom = yto) and not (zfrom = 0) : + if (zfrom = 1) : flow_up_on_grid(2) else : flow_down_on_grid(2) fi + elseif ypart flow_xypoints[1] < ypart flow_xypoints[6] : + flow_up_on_grid(n) + else : + flow_down_on_grid(n) + fi +enddef ; + +vardef flow_xy_on_grid (expr n, m) = + (xpart flow_xypoints[n], ypart flow_xypoints[m]) +enddef ; + +vardef flow_down_to_grid (expr a,b) = + (xpart flow_xypoints[a], ypart flow_xypoints[if ypart flow_xypoints[a]ypart flow_xypoints[b] : a else : b fi]) +enddef ; + +vardef flow_left_to_grid (expr a,b) = + (xpart flow_xypoints[if xpart flow_xypoints[a]xpart flow_xypoints[b] : a else : b fi], ypart flow_xypoints[a]) +enddef ; + +vardef flow_valid_connection (expr xfrom, yfrom, xto, yto) = + begingroup ; + save ok, vc, pp ; boolean ok ; pair vc ; path pp ; + save flow_xyfirst, flow_xylast ; pair flow_xyfirst, flow_xylast ; + % check for slanted lines + ok := true ; + for i=1 upto flow_xypoint-1 : + if not ((xpart flow_xypoints[i]=xpart flow_xypoints[i+1]) or (ypart flow_xypoints[i]=ypart flow_xypoints[i+1])) : + ok := false ; + fi ; + endfor ; + if not ok : + % message("slanted"); + false + elseif flow_forcevalid : + % message("force"); + true + elseif (xfrom=xto) and (yfrom=yto) : + % message("self"); + false + else : + % check for crossing shapes + flow_xyfirst := flow_xypoints[1] ; + flow_xylast := flow_xypoints[flow_xypoint] ; + flow_trim_points ; + pp := for i=1 upto flow_xypoint-1 : flow_xypoints[i]-- endfor flow_xypoints[flow_xypoint] ; + flow_xypoints[1] := flow_xyfirst ; + flow_xypoints[flow_xypoint] := flow_xylast ; + for i=1 upto flow_max_x : + for j=1 upto flow_max_y : % was bug: xfrom,yto + if not ( ( (i,j)=(xfrom,yfrom) ) or ( (i,j)=(xto,yto) ) ) : + if not flow_xyfree[i][j] : + vc := pp intersection_point flow_xypath[i][j] ; + if intersection_found : + ok := false + fi ; + fi ; + fi ; + endfor ; + endfor ; + % if not ok: message("crossing") ; fi ; + ok + fi + endgroup +enddef ; + +def flow_connect_top_bottom (expr xfrom, yyfrom, zfrom) (expr xto, yyto, zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,6) : + flow_xypoints[1] := flow_xy_top(xfrom,yfrom,zfrom,true) ; + flow_xypoints[6] := flow_xy_bottom(xto,yto,zto,true) ; + flow_xypoints[2] := flow_up_on_grid(1) ; + flow_xypoints[5] := flow_down_on_grid(6) ; + flow_xypoints[3] := flow_up_to_grid(2,5) ; + flow_xypoints[4] := flow_up_to_grid(2,5) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_x_on_grid(2,xfrom,xto,zfrom) ; + flow_xypoints[4] := flow_xy_on_grid(3,5) ; + fi ; + %%%% begin experiment + flow_xypoints[3] := flow_xypoints[3] shifted (flow_dsp_x,0) ; + flow_xypoints[4] := flow_xypoints[4] shifted (flow_dsp_x,0) ; + if flow_dsp_y>0 : + flow_xypoints[2] := flow_xypoints[2] shifted (0,flow_dsp_y) ; + flow_xypoints[3] := flow_xypoints[3] shifted (0,flow_dsp_y) ; + elseif flow_dsp_y<0 : + flow_xypoints[4] := flow_xypoints[4] shifted (0,flow_dsp_y) ; + flow_xypoints[5] := flow_xypoints[5] shifted (0,flow_dsp_y) ; + fi + %%%% end experiment + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_left_right (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,6) : + flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ; + flow_xypoints[6] := flow_xy_right(xto,yto,zto,true) ; + flow_xypoints[2] := flow_left_on_grid(1) ; + flow_xypoints[5] := flow_right_on_grid(6) ; + flow_xypoints[3] := flow_left_to_grid(2,5) ; + flow_xypoints[4] := flow_left_to_grid(2,5) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_y_on_grid(2,yfrom,yto,zfrom) ; + flow_xypoints[4] := flow_xy_on_grid(5,3) ; + fi ; + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_left_top (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,5) : + flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ; + flow_xypoints[5] := flow_xy_top(xto,yto,zto,true) ; + flow_xypoints[2] := flow_left_on_grid(1) ; + flow_xypoints[4] := flow_up_on_grid(5) ; + flow_xypoints[3] := flow_left_to_grid(2,5) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_xy_on_grid(2,4) ; + fi ; + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_left_bottom (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,5) : + flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ; + flow_xypoints[5] := flow_xy_bottom(xto,yto,zto,true) ; + flow_xypoints[2] := flow_left_on_grid(1) ; + flow_xypoints[4] := flow_down_on_grid(5) ; + flow_xypoints[3] := flow_left_to_grid(2,5) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_xy_on_grid(2,4) ; + fi ; + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_right_top (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,5) : + flow_xypoints[1] := flow_xy_right(xfrom,yfrom,zfrom,true) ; + flow_xypoints[5] := flow_xy_top(xto,yto,zto,true) ; + flow_xypoints[2] := flow_right_on_grid(1) ; + flow_xypoints[4] := flow_up_on_grid(5) ; + flow_xypoints[3] := flow_right_to_grid(2,5) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_xy_on_grid(2,4) ; + fi ; + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_right_bottom (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,5) : + flow_xypoints[1] := flow_xy_right(xfrom,yfrom,zfrom,true) ; + flow_xypoints[5] := flow_xy_bottom(xto,yto,zto,true) ; + flow_xypoints[2] := flow_right_on_grid(1) ; + flow_xypoints[4] := flow_down_on_grid(5) ; + flow_xypoints[3] := flow_right_to_grid(2,5) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_xy_on_grid(2,4) ; + fi ; + %%%% begin experiment + flow_xypoints[2] := flow_xypoints[2] shifted (flow_dsp_x,0) ; + flow_xypoints[3] := flow_xypoints[3] shifted (flow_dsp_x,0) ; + if flow_dsp_y>0 : + flow_xypoints[3] := flow_xypoints[3] shifted (0,-flow_dsp_y) ; + flow_xypoints[4] := flow_xypoints[4] shifted (0,-flow_dsp_y) ; + elseif flow_dsp_y<0 : + flow_xypoints[3] := flow_xypoints[3] shifted (0,flow_dsp_y) ; + flow_xypoints[4] := flow_xypoints[4] shifted (0,flow_dsp_y) ; + fi + %%%% end experiment + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_left_left (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,6) : + flow_xypoints[1] := flow_xy_left(xfrom,yfrom,zfrom,true) ; + flow_xypoints[6] := flow_xy_left(xto,yto,zto,true) ; + flow_xypoints[2] := flow_left_on_grid(1) ; + flow_xypoints[5] := flow_left_on_grid(6) ; + flow_xypoints[3] := flow_left_to_grid(2,5) ; + flow_xypoints[4] := flow_left_to_grid(5,2) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_y_on_grid(2,yfrom,yto,zfrom) ; + flow_xypoints[4] := flow_xy_on_grid(5,3) ; + fi ; + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_right_right (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,6) : + flow_xypoints[1] := flow_xy_right(xfrom,yfrom,zfrom,true) ; + flow_xypoints[6] := flow_xy_right(xto,yto,zto,true) ; + flow_xypoints[2] := flow_right_on_grid(1) ; + flow_xypoints[5] := flow_right_on_grid(6) ; + flow_xypoints[3] := flow_right_to_grid(2,5) ; + flow_xypoints[4] := flow_right_to_grid(5,2) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_y_on_grid(2,yfrom,yto,zfrom) ; + flow_xypoints[4] := flow_xy_on_grid(5,3) ; + fi ; + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_top_top (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,6) : + flow_xypoints[1] := flow_xy_top(xfrom,yfrom,zfrom,true) ; + flow_xypoints[6] := flow_xy_top(xto,yto,zto,true) ; + flow_xypoints[2] := flow_up_on_grid(1) ; + flow_xypoints[5] := flow_up_on_grid(6) ; + flow_xypoints[3] := flow_up_to_grid(2,5) ; + flow_xypoints[4] := flow_up_to_grid(5,2) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_x_on_grid(2,xfrom,xto,zfrom) ; + flow_xypoints[4] := flow_xy_on_grid(3,5) ; + fi ; + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_bottom_bottom (expr xfrom,yyfrom,zfrom) (expr xto,yyto,zto) = + yfrom := flow_y_pos(yyfrom) ; + yto := flow_y_pos(yyto) ; + if flow_points_initialized(xfrom,yfrom,xto,yto,6) : + flow_xypoints[1] := flow_xy_bottom(xfrom,yfrom,zfrom,true) ; + flow_xypoints[6] := flow_xy_bottom(xto,yto,zto,true) ; + flow_xypoints[2] := flow_down_on_grid(1) ; + flow_xypoints[5] := flow_down_on_grid(6) ; + flow_xypoints[3] := flow_down_to_grid(2,5) ; + flow_xypoints[4] := flow_down_to_grid(5,2) ; + if not flow_valid_connection(xfrom,yfrom,xto,yto) : + flow_xypoints[3] := flow_x_on_grid(2,xfrom,xto,zfrom) ; + flow_xypoints[4] := flow_xy_on_grid(3,5) ; + fi ; + %%%% begin experiment + flow_xypoints[3] := flow_xypoints[3] shifted (flow_dsp_x,0) ; + flow_xypoints[4] := flow_xypoints[4] shifted (flow_dsp_x,0) ; + if flow_dsp_y<0 : + flow_xypoints[2] := flow_xypoints[2] shifted (0,-flow_dsp_y) ; + flow_xypoints[3] := flow_xypoints[3] shifted (0,-flow_dsp_y) ; + elseif flow_dsp_y>0 : + flow_xypoints[4] := flow_xypoints[4] shifted (0,flow_dsp_y) ; + flow_xypoints[5] := flow_xypoints[5] shifted (0,flow_dsp_y) ; + fi + %%%% end experiment + flow_draw_connection ; + fi ; +enddef ; + +def flow_connect_bottom_top (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) = + flow_reverse_connection := true ; + flow_connect_top_bottom (xto,yto,zto) (xfrom,yfrom,zfrom) ; +enddef ; + +def flow_connect_right_left (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) = + flow_reverse_connection := true ; + flow_connect_left_right (xto,yto,zto) (xfrom,yfrom,zfrom) ; +enddef ; + +def flow_connect_top_left (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) = + flow_reverse_connection := true ; + flow_connect_left_top(xto,yto,zto) (xfrom,yfrom,zfrom) ; +enddef ; + +def flow_connect_bottom_left (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) = + flow_reverse_connection := true ; + flow_connect_left_bottom (xto,yto,zto) (xfrom,yfrom,zfrom) ; +enddef ; + +def flow_connect_top_right (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) = + flow_reverse_connection := true ; + flow_connect_right_top (xto,yto,zto) (xfrom,yfrom,zfrom) ; +enddef ; + +def flow_connect_bottom_right (expr xfrom,yfrom,zfrom) (expr xto,yto,zto) = + flow_reverse_connection := true ; + flow_connect_right_bottom (xto,yto,zto) (xfrom,yfrom,zfrom) ; +enddef ; + +def flow_draw_test_shape(expr x, y) = + flow_draw_shape(x,y,fullcircle, .7, .7) ; +enddef ; + +def flow_draw_test_shapes = + for i=1 upto flow_max_x : + for j=1 upto flow_max_y : + flow_draw_test_shape(i,j) ; + endfor ; + endfor ; +enddef; + +def flow_draw_test_area = + pickup pencircle scaled .5flow_shape_line_width ; + draw (unitsquare xscaled flow_max_x yscaled flow_max_y shifted (1,1)) flow_scaled_to_grid withcolor blue ; +enddef ; + +def flow_show_connection(expr n, m) = + + flow_begin_chart(100+n,6,6) ; + + flow_draw_test_area ; + + flow_smooth := true ; + flow_arrowtip := true ; + flow_dashline := true ; + + flow_draw_test_shape(2,2) ; flow_draw_test_shape(4,5) ; + flow_draw_test_shape(3,3) ; flow_draw_test_shape(5,1) ; + flow_draw_test_shape(2,5) ; flow_draw_test_shape(1,3) ; + flow_draw_test_shape(6,2) ; flow_draw_test_shape(4,6) ; + + if (m=1) : + flow_connect_top_bottom (2,2,0) (4,5,0) ; + flow_connect_top_bottom (3,3,0) (5,1,0) ; + flow_connect_top_bottom (2,5,0) (1,3,0) ; + flow_connect_top_bottom (6,2,0) (4,6,0) ; + elseif (m=2) : + flow_connect_top_top (2,2,0) (4,5,0) ; + flow_connect_top_top (3,3,0) (5,1,0) ; + flow_connect_top_top (2,5,0) (1,3,0) ; + flow_connect_top_top (6,2,0) (4,6,0) ; + elseif (m=3) : + flow_connect_bottom_bottom (2,2,0) (4,5,0) ; + flow_connect_bottom_bottom (3,3,0) (5,1,0) ; + flow_connect_bottom_bottom (2,5,0) (1,3,0) ; + flow_connect_bottom_bottom (6,2,0) (4,6,0) ; + elseif (m=4) : + flow_connect_left_right (2,2,0) (4,5,0) ; + flow_connect_left_right (3,3,0) (5,1,0) ; + flow_connect_left_right (2,5,0) (1,3,0) ; + flow_connect_left_right (6,2,0) (4,6,0) ; + elseif (m=5) : + flow_connect_left_left (2,2,0) (4,5,0) ; + flow_connect_left_left (3,3,0) (5,1,0) ; + flow_connect_left_left (2,5,0) (1,3,0) ; + flow_connect_left_left (6,2,0) (4,6,0) ; + elseif (m=6) : + flow_connect_right_right (2,2,0) (4,5,0) ; + flow_connect_right_right (3,3,0) (5,1,0) ; + flow_connect_right_right (2,5,0) (1,3,0) ; + flow_connect_right_right (6,2,0) (4,6,0) ; + elseif (m=7) : + flow_connect_left_top (2,2,0) (4,5,0) ; + flow_connect_left_top (3,3,0) (5,1,0) ; + flow_connect_left_top (2,5,0) (1,3,0) ; + flow_connect_left_top (6,2,0) (4,6,0) ; + elseif (m=8) : + flow_connect_left_bottom (2,2,0) (4,5,0) ; + flow_connect_left_bottom (3,3,0) (5,1,0) ; + flow_connect_left_bottom (2,5,0) (1,3,0) ; + flow_connect_left_bottom (6,2,0) (4,6,0) ; + elseif (m=9) : + flow_connect_right_top (2,2,0) (4,5,0) ; + flow_connect_right_top (3,3,0) (5,1,0) ; + flow_connect_right_top (2,5,0) (1,3,0) ; + flow_connect_right_top (6,2,0) (4,6,0) ; + else : + flow_connect_right_bottom (2,2,0) (4,5,0) ; + flow_connect_right_bottom (3,3,0) (5,1,0) ; + flow_connect_right_bottom (2,5,0) (1,3,0) ; + flow_connect_right_bottom (6,2,0) (4,6,0) ; + fi ; + + flow_end_chart ; + +enddef ; + +def flow_show_connections = + for f=1 upto 10 : + flow_show_connection(f,f) ; + endfor ; +enddef ; + +%D charts + +def flow_clip_chart(expr minx, miny, maxx, maxy) = + flow_cmin_x := minx ; + flow_cmax_x := maxx ; + flow_cmin_y := miny ; + flow_cmax_y := maxy ; +enddef ; + +def flow_begin_chart(expr n, maxx, maxy) = + flow_new_chart ; + flow_chart_figure := n ; + flow_chart_scale := 1 ; + if flow_chart_figure>0: + beginfig(flow_chart_figure) ; + fi ; + flow_initialize_grid (maxx, maxy) ; + bboxmargin := 0 ; + flow_cmin_x := 1 ; + flow_cmax_x := maxx ; + flow_cmin_y := 1 ; + flow_cmax_y := maxy ; +enddef ; + +def flow_end_chart = + begingroup ; + save p ; path p ; + flow_flush_shapes ; + flow_flush_connections ; + flow_flush_pictures ; + flow_cmin_x := flow_cmin_x ; + flow_cmax_x := flow_cmin_x+flow_cmax_x ; + flow_cmin_y := flow_cmin_y-1 ; + flow_cmax_y := flow_cmin_y+flow_cmax_y ; + if flow_reverse_y : + flow_cmin_y := flow_y_pos(flow_cmin_y) ; + flow_cmax_y := flow_y_pos(flow_cmax_y) ; + fi ; + p := (((flow_cmin_x,flow_cmin_y)--(flow_cmax_x,flow_cmin_y)-- + (flow_cmax_x,flow_cmax_y)--(flow_cmin_x,flow_cmax_y)--cycle)) + flow_scaled_to_grid ; + %draw p withcolor red ; + p := p enlarged flow_chart_offset ; + clip currentpicture to p ; + setbounds currentpicture to p ; + endgroup ; + currentpicture := currentpicture scaled flow_chart_scale ; + if flow_chart_figure>0: + endfig ; + fi ; +enddef ; + +def flow_new_shape(expr x, y, n) = + if known n : + if (x>0) and (x<=flow_max_x) and (y>0) and (y<=flow_max_y) : + flow_draw_shape(x,y,some_shape_path(n), flow_shape_width/flow_grid_width, flow_shape_height/flow_grid_height) ; + else : + message ("shape outside grid ignored") ; + fi ; + else : + message ("shape not known" ) ; + fi ; +enddef ; + +def flow_begin_sub_chart = + begingroup ; + save flow_shape_line_width, flow_connection_line_width ; + save flow_shape_line_color, flow_shape_fill_color, flow_connection_line_color ; + color flow_shape_line_color, flow_shape_fill_color, flow_connection_line_color ; + save flow_smooth, flow_arrowtip, flow_dashline, flow_peepshape ; + boolean flow_smooth, flow_arrowtip, flow_dashline, flow_peepshape ; +enddef ; + +def flow_end_sub_chart = + endgroup ; +enddef ; + diff --git a/metapost/context/base/mp-shap.mp b/metapost/context/base/mp-shap.mp index 0f5fe431d..785231278 100644 --- a/metapost/context/base/mp-shap.mp +++ b/metapost/context/base/mp-shap.mp @@ -1,6 +1,6 @@ %D \module %D [ file=mp-shap.mp, -%D version=2000.05.31, +%D version=2000.05.31, %D title=\CONTEXT\ \METAPOST\ graphics, %D subtitle=shapes, %D author=Hans Hagen, @@ -8,300 +8,199 @@ %D copyright={PRAGMA / Hans Hagen \& Ton Otten}] %C %C This module is part of the \CONTEXT\ macro||package and is -%C therefore copyrighted by \PRAGMA. See licen-en.pdf for -%C details. - -if unknown context_tool : input mp-tool ; fi ; -if known context_shap : endinput ; fi ; - -boolean context_shap ; context_shap := true ; +%C therefore copyrighted by \PRAGMA. See licen-en.pdf for +%C details. + +if unknown context_tool : input mp-tool ; fi ; +if known context_shap : endinput ; fi ; + +boolean context_shap ; context_shap := true ; + +path predefined_shapes[] ; + +begingroup ; + +save xradius, yradius, xxradius, yyradius ; +save ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ; + +numeric xradius, yradius, xxradius, yyradius ; +pair ll, lr, ur, ul, llx, lly, lrx, lry, urx, ury, ulx, uly, llxx, llyy, lrxx, lryy, urxx, uryy, ulxx, ulyy, lc, rc, tc, bc ; + +xradius := .15 ; +yradius := .15 ; +xxradius := .10 ; +yyradius := .10 ; + +ll := llcorner (unitsquare shifted (-.5,-.5)) ; +lr := lrcorner (unitsquare shifted (-.5,-.5)) ; +ur := urcorner (unitsquare shifted (-.5,-.5)) ; +ul := ulcorner (unitsquare shifted (-.5,-.5)) ; + +llx := ll shifted (xradius,0) ; +lly := ll shifted (0,yradius) ; + +lrx := lr shifted (-xradius,0) ; +lry := lr shifted (0,yradius) ; + +urx := ur shifted (-xradius,0) ; +ury := ur shifted (0,-yradius) ; + +ulx := ul shifted (xradius,0) ; +uly := ul shifted (0,-yradius) ; + +llxx := ll shifted (xxradius,0) ; +llyy := ll shifted (0,yyradius) ; + +lrxx := lr shifted (-xxradius,0) ; +lryy := lr shifted (0,yyradius) ; + +urxx := ur shifted (-xxradius,0) ; +uryy := ur shifted (0,-yyradius) ; + +ulxx := ul shifted (xxradius,0) ; +ulyy := ul shifted (0,-yyradius) ; + +lc := ll shifted (0,.5) ; +rc := lr shifted (0,.5) ; +tc := ul shifted (.5,0) ; +bc := ll shifted (.5,0) ; + +predefined_shapes[ 0] := (origin--cycle) ; +predefined_shapes[ 5] := (llx--lrx{right}...rc...{left}urx--ulx{left}...lc...{right}cycle) ; +predefined_shapes[ 6] := (ll--lrx{right}...rc...{left}urx--ul--cycle) ; +predefined_shapes[ 7] := (ll--lrx{right}...rc...{left}urx--ul--cycle) rotatedaround(origin,180) ; +predefined_shapes[ 8] := (lr--ury{up}...tc...{down}uly--ll--cycle) ; +predefined_shapes[ 9] := (lr--ury{up}...tc...{down}uly--ll--cycle) rotatedaround(origin,180) ; +predefined_shapes[10] := (ll--lr--ur--ul--ll--ur--ul--ll--cycle) ; +predefined_shapes[11] := (ll--lr--ur--ul--ll--lr--ul--ll--cycle) ; +predefined_shapes[12] := (ll--lrx--ur--ulx--cycle) ; +predefined_shapes[13] := (llx--lr--urx--ul--cycle) ; +predefined_shapes[14] := (lly--bc--lry--ury--tc--uly--cycle) ; +predefined_shapes[15] := (llx--lrx--rc--urx--ulx--lc--cycle) ; +predefined_shapes[16] := (ll--lrx--rc--urx--ul--cycle) ; +predefined_shapes[17] := (ll--lrx--rc--urx--ul--cycle) rotatedaround(origin,180) ; +predefined_shapes[18] := (lr--ury--tc--uly--ll--cycle) ; +predefined_shapes[19] := (lr--ury--tc--uly--ll--cycle) rotatedaround(origin,180) ; +predefined_shapes[20] := (ll--lr--ur--ul--ll--llxx--ulxx--ul--ll--lr--ur--urxx--lrxx--cycle) ; +predefined_shapes[21] := (ul--ll--lr--ur--ul--ulyy--uryy--ur--ul--ll--lr--lryy--llyy--cycle) ; +predefined_shapes[22] := (ll--lrx--lry--ur--ulx--uly--cycle) ; +predefined_shapes[23] := (llx--lr--ury--urx--ul--lly--cycle) ; +predefined_shapes[24] := (ll--lr--ur--ul--cycle) ; +predefined_shapes[25] := (llx--lrx--lry--ury--urx--ulx--uly--lly--cycle) ; +predefined_shapes[26] := (ll--lrx--lry--ur--ul--cycle) ; +predefined_shapes[27] := (ll--lr--ury--urx--ul--cycle) rotatedaround(origin,180) ; +predefined_shapes[28] := (ll--lr--ury--urx--ul--cycle) ; +predefined_shapes[29] := (ll--lrx--lry--ur--ul--cycle) rotatedaround(origin,180) ; +predefined_shapes[30] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) rotated 45; +predefined_shapes[31] := (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & bc--tc & tc{left}..{down}lc & lc--rc & rc{up}..tc{left}...{down}lc...{right}bc & cycle) ; +predefined_shapes[32] := (ll{right}...{right}lry--ur--ul--ll--cycle) ; +predefined_shapes[33] := (ll{right}...{right}lry--ur--ul--ll--cycle--ul--ulx--ulx shifted(0,yyradius)--ur shifted(yyradius,yyradius)--lry shifted(yyradius,yyradius)--lry shifted(0,yyradius)--ur--ul--cycle ) ; +predefined_shapes[34] := (uly..tc..ury & ury..tc shifted (0,-2yradius)..uly & uly--lly & lly..bc..lry & lry--ury & ury..tc shifted (0,-2yradius)..uly & cycle ) ; +predefined_shapes[35] := (bc{right}...rc{up}...tc{left}...lc{down}...cycle) ; +predefined_shapes[36] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) ; +predefined_shapes[37] := (ul--tc{right}..rc{down}..{left}bc--ll & ll..(xpart llx, ypart lc)..ul & cycle) rotatedaround(origin,180) ; +predefined_shapes[38] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) ; +predefined_shapes[39] := (ll--lc{up}..tc{right}..{down}rc--lr & lr..(xpart bc, ypart lly)..ll & cycle) rotatedaround(origin,180) ; +predefined_shapes[40] := (ll--lr--ur--ul--ll--ur--ul--ll--lr--ul--ll--cycle) ; +predefined_shapes[41] := (ll--lr--ur--ul--ll--lr--rc--lc--ll--bc--tc--ul--ll & cycle) ; +predefined_shapes[42] := (ll--lr--origin shifted (+epsilon,0)--ur--ul--origin shifted (-epsilon,0)--cycle) ; +predefined_shapes[43] := (ll--ul--origin shifted (0,+epsilon)--ur--lr--origin shifted (0,-epsilon)--cycle) ; +predefined_shapes[45] := (bc--rc--tc--lc--cycle) ; +predefined_shapes[46] := (ll--ul--rc--cycle) ; +predefined_shapes[47] := (ll--ul--rc--cycle) rotatedaround(origin,180) ; +predefined_shapes[48] := (ul--ur--bc--cycle) rotatedaround(origin,180) ; +predefined_shapes[49] := (ul--ur--bc--cycle) ; +predefined_shapes[56] := (ll--lry--ury--ul--cycle) ; +predefined_shapes[57] := (ll--lry--ury--ul--cycle) rotatedaround(origin,180) ; +predefined_shapes[58] := (ll--ulx--urx--lr--cycle) ; +predefined_shapes[59] := (ll--ulx--urx--lr--cycle) rotatedaround(origin,180); +predefined_shapes[66] := (rc--origin shifted ( epsilon,0) --cycle & rc--origin--cycle ) ; +predefined_shapes[67] := (lc--origin shifted (-epsilon,0) --cycle & lc--origin--cycle ) ; +predefined_shapes[68] := (tc--origin shifted (0, epsilon) --cycle & tc--origin--cycle ) ; +predefined_shapes[69] := (bc--origin shifted (0,-epsilon) --cycle & bc--origin--cycle ) ; +predefined_shapes[75] := (lly--lry--ury--uly--cycle) rotatedaround(origin,180) ; +predefined_shapes[76] := (ll--lr--ur--uly--cycle) rotatedaround(origin,180) ; +predefined_shapes[77] := (ll--lr--ury--ul--cycle) rotatedaround(origin,180) ; +predefined_shapes[78] := (lly--lr--ur--ul--cycle) rotatedaround(origin,180) ; +predefined_shapes[79] := (ll--lry--ur--ul--cycle) rotatedaround(origin,180) ; + +numeric predefined_shapes_xradius ; predefined_shapes_xradius := xradius ; +numeric predefined_shapes_yradius ; predefined_shapes_yradius := yradius ; +numeric predefined_shapes_xxradius ; predefined_shapes_xxradius := xxradius ; +numeric predefined_shapes_yyradius ; predefined_shapes_yyradius := yyradius ; + +endgroup ; vardef some_shape_path (expr type) = + if known predefined_shapes[type] : predefined_shapes[type] else : predefined_shapes[0] fi +enddef ; +def some_shape (expr shape_type, shape_width, shape_height, shape_linewidth, shape_linecolor, shape_fillcolor) = begingroup ; - - save border, xradius, yradius, - normal, mirror, rotate, - lc, rc, tc, bc, ll, lr, ur, ul, - llx, lrx, urx, ulx, lly, lry, ury, uly ; - - path border ; - - xradius := .15 ; xxradius := .10 ; - yradius := .15 ; yyradius := .10 ; - - pair ll ; ll := llcorner (unitsquare shifted (-.5,-.5)) ; - pair lr ; lr := lrcorner (unitsquare shifted (-.5,-.5)) ; - pair ur ; ur := urcorner (unitsquare shifted (-.5,-.5)) ; - pair ul ; ul := ulcorner (unitsquare shifted (-.5,-.5)) ; - - pair llx ; llx := ll shifted (xradius,0) ; - pair lly ; lly := ll shifted (0,yradius) ; - - pair lrx ; lrx := lr shifted (-xradius,0) ; - pair lry ; lry := lr shifted (0,yradius) ; - - pair urx ; urx := ur shifted (-xradius,0) ; - pair ury ; ury := ur shifted (0,-yradius) ; - - pair ulx ; ulx := ul shifted (xradius,0) ; - pair uly ; uly := ul shifted (0,-yradius) ; - - pair llxx ; llxx := ll shifted (xxradius,0) ; - pair llyy ; llyy := ll shifted (0,yyradius) ; - - pair lrxx ; lrxx := lr shifted (-xxradius,0) ; - pair lryy ; lryy := lr shifted (0,yyradius) ; - - pair urxx ; urxx := ur shifted (-xxradius,0) ; - pair uryy ; uryy := ur shifted (0,-yyradius) ; - - pair ulxx ; ulxx := ul shifted (xxradius,0) ; - pair ulyy ; ulyy := ul shifted (0,-yyradius) ; - - pair lc ; lc := ll shifted (0,.5) ; - pair rc ; rc := lr shifted (0,.5) ; - pair tc ; tc := ul shifted (.5,0) ; - pair bc ; bc := ll shifted (.5,0) ; - - def mirror (expr p) = - p rotatedaround(origin,180) - enddef ; - - def normal (expr p ) = - p - enddef ; - - def rotate (expr p) = - p rotated 45 - enddef ; - - if type= 0 : - border := normal (origin--cycle) ; - - elseif type= 5 : - border := normal (llx--lrx{right}...rc...{left}urx--ulx{left}...lc...{right}cycle) ; - elseif type= 6 : - border := normal (ll--lrx{right}...rc...{left}urx--ul--cycle) ; - elseif type= 7 : - border := mirror (ll--lrx{right}...rc...{left}urx--ul--cycle) ; - elseif type= 8 : - border := normal (lr--ury{up}...tc...{down}uly--ll--cycle) ; - elseif type= 9 : - border := mirror (lr--ury{up}...tc...{down}uly--ll--cycle) ; - elseif type=10 : - border := normal (ll--lr--ur--ul--ll--ur--ul--ll--cycle) ; - elseif type=11 : - border := normal (ll--lr--ur--ul--ll--lr--ul--ll--cycle) ; - elseif type=12 : - border := normal (ll--lrx--ur--ulx--cycle) ; - elseif type=13 : - border := normal (llx--lr--urx--ul--cycle) ; - elseif type=14 : - border := normal (lly--bc--lry--ury--tc--uly--cycle) ; - elseif type=15 : - border := normal (llx--lrx--rc--urx--ulx--lc--cycle) ; - elseif type=16 : - border := normal (ll--lrx--rc--urx--ul--cycle) ; - elseif type=17 : - border := mirror (ll--lrx--rc--urx--ul--cycle) ; - elseif type=18 : - border := normal (lr--ury--tc--uly--ll--cycle) ; - elseif type=19 : - border := mirror (lr--ury--tc--uly--ll--cycle) ; - elseif type=20 : - border := normal (ll--lr--ur--ul--ll--llxx--ulxx--ul--ll-- - lr--ur--urxx--lrxx--cycle) ; - elseif type=21 : - border := normal (ul--ll--lr--ur--ul--ulyy--uryy--ur--ul-- - ll--lr--lryy--llyy--cycle) ; - elseif type=22 : - border := normal (ll--lrx--lry--ur--ulx--uly--cycle) ; - elseif type=23 : - border := normal (llx--lr--ury--urx--ul--lly--cycle) ; - elseif type=24 : - border := normal (ll--lr--ur--ul--cycle) ; - elseif type=25 : - border := normal (llx--lrx--lry--ury--urx--ulx--uly--lly--cycle) ; - elseif type=26 : - border := normal (ll--lrx--lry--ur--ul--cycle) ; - elseif type=27 : - border := mirror (ll--lr--ury--urx--ul--cycle) ; - elseif type=28 : - border := normal (ll--lr--ury--urx--ul--cycle) ; - elseif type=29 : - border := mirror (ll--lrx--lry--ur--ul--cycle) ; - elseif type=30 : - border := rotate (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & - bc--tc & tc{left}..{down}lc & lc--rc & - rc{up}..tc{left}...{down}lc...{right}bc & cycle) ; - elseif type=31 : - border := normal (bc{right}...{up}rc...tc{left}...{down}lc...{right}bc & - bc--tc & tc{left}..{down}lc & lc--rc & - rc{up}..tc{left}...{down}lc...{right}bc & cycle) ; - elseif type=32 : - border := normal (ll{right}...{right}lry--ur--ul--ll--cycle) ; - elseif type=33 : - border := normal (ll{right}...{right}lry--ur--ul--ll--cycle - --ul--ulx--ulx shifted(0,yyradius) - --ur shifted(yyradius,yyradius) - --lry shifted(yyradius,yyradius) - --lry shifted(0,yyradius) - --ur--ul--cycle ) ; - elseif type=34 : - border := normal (uly..tc..ury & - ury..tc shifted (0,-2yradius)..uly & - uly--lly & - lly..bc..lry & - lry--ury & - ury..tc shifted (0,-2yradius)..uly & cycle ) ; - elseif type=35 : - border := normal (bc{right}...rc{up}...tc{left}...lc{down}...cycle) ; - elseif type=36 : - border := normal (ul--tc{right}..rc{down}..{left}bc--ll & - ll..(xpart llx, ypart lc)..ul & cycle) ; - elseif type=37 : - border := mirror (ul--tc{right}..rc{down}..{left}bc--ll & - ll..(xpart llx, ypart lc)..ul & cycle) ; - elseif type=38 : - border := normal (ll--lc{up}..tc{right}..{down}rc--lr & - lr..(xpart bc, ypart lly)..ll & cycle) ; - elseif type=39 : - border := mirror (ll--lc{up}..tc{right}..{down}rc--lr & - lr..(xpart bc, ypart lly)..ll & cycle) ; - elseif type=40 : - border := normal (ll--lr--ur--ul--ll--ur--ul--ll--lr--ul--ll--cycle) ; - elseif type=41 : - border := normal (ll--lr--ur--ul--ll--lr--rc--lc--ll--bc--tc--ul--ll & cycle) ; - elseif type=42 : - border := normal (ll--lr--origin shifted (+epsilon,0)-- - ur--ul--origin shifted (-epsilon,0)--cycle) ; - elseif type=43 : - border := normal (ll--ul--origin shifted (0,+epsilon)-- - ur--lr--origin shifted (0,-epsilon)--cycle) ; - elseif type=45 : - border := normal (bc--rc--tc--lc--cycle) ; - elseif type=46 : - border := normal (ll--ul--rc--cycle) ; - elseif type=47 : - border := mirror (ll--ul--rc--cycle) ; - elseif type=48 : - border := mirror (ul--ur--bc--cycle) ; - elseif type=49 : - border := normal (ul--ur--bc--cycle) ; - - elseif type=56 : - border := normal (ll--lry--ury--ul--cycle) ; - elseif type=57 : - border := mirror (ll--lry--ury--ul--cycle) ; - elseif type=58 : - border := normal (ll--ulx--urx--lr--cycle) ; - elseif type=59 : - border := mirror (ll--ulx--urx--lr--cycle) ; - - elseif type=61 : - border := normal (fullcircle scaled (1.5*yradius) xscaled (grid_height/grid_width)) ; - elseif type=62 : - border := normal (fullcircle scaled (2.0*yradius) xscaled (grid_height/grid_width)) ; - - elseif type=66 : - border := normal (rc--origin shifted ( epsilon,0) --cycle & - rc--origin --cycle ) ; - elseif type=67 : - border := normal (lc--origin shifted (-epsilon,0) --cycle & - lc--origin --cycle ) ; - elseif type=68 : - border := normal (tc--origin shifted (0, epsilon) --cycle & - tc--origin --cycle ) ; - elseif type=69 : - border := normal (bc--origin shifted (0,-epsilon) --cycle & - bc--origin --cycle ) ; - - elseif type=75 : - border := mirror (lly--lry--ury--uly--cycle) ; - elseif type=76 : - border := mirror (ll--lr--ur--uly--cycle) ; - elseif type=77 : - border := mirror (ll--lr--ury--ul--cycle) ; - elseif type=78 : - border := mirror (lly--lr--ur--ul--cycle) ; - elseif type=79 : - border := mirror (ll--lry--ur--ul--cycle) ; - - else : - border := normal (origin--cycle) ; - %border := normal (ll--lr--ur--ul--cycle) ; - fi ; - - border - - endgroup - -enddef; - -def some_shape ( expr shape_type , - shape_width , - shape_height , - shape_linewidth , - shape_linecolor , - shape_fillcolor ) = - - path p ; p := - some_shape_path (shape_type) - xscaled shape_width - yscaled shape_height ; - - pickup pencircle scaled shape_linewidth ; - - fill p withcolor shape_fillcolor ; - draw p withcolor shape_linecolor ; - -enddef ; + save p ; path p ; + p := some_shape_path (shape_type) xscaled shape_width yscaled shape_height ; + pickup pencircle scaled shape_linewidth ; + fill p withcolor shape_fillcolor ; + draw p withcolor shape_linecolor ; + endgroup ; +enddef ; vardef drawshape (expr t, p, lw, lc, fc) = - save pp ; - if t>1 : % normal shape - path pp ; - pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) shifted center p ; - fill pp withcolor fc ; - draw pp withpen pencircle scaled lw withcolor lc ; - elseif t=1 : % background only - path pp ; - pp := fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ; - fill pp withcolor fc ; - else : % dimensions only - picture pp ; pp := nullpicture ; - setbounds pp to fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ; - draw pp ; - fi ; + save pp ; + if t>1 : % normal shape + path pp ; + pp := some_shape_path(t) xyscaled(bbwidth(p), bbheight(p)) shifted center p ; + fill pp withcolor fc ; + draw pp withpen pencircle scaled lw withcolor lc ; + elseif t=1 : % background only + path pp ; + pp := fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ; + fill pp withcolor fc ; + else : % dimensions only + picture pp ; pp := nullpicture ; + setbounds pp to fullsquare xyscaled(bbwidth(p), bbheight(p)) shifted center p ; + draw pp ; + fi ; enddef ; vardef drawline (expr t, p, lw, lc) = - if (t>0) and (length(p)>1) : - saveoptions ; - drawoptions(withpen pencircle scaled lw withcolor lc) ; - draw p ; - if t = 1 : - draw arrowheadonpath(p,1) ; - elseif t = 2 : - draw arrowheadonpath(reverse p,1) ; - elseif t = 3 : - for $ = p,reverse p : draw arrowheadonpath($,1) ; endfor ; - elseif t = 11 : - draw arrowheadonpath(p,1/2) ; - elseif t = 12 : - draw arrowheadonpath(reverse p,1/2) ; - elseif t = 13 : - for $=p,reverse p : draw arrowheadonpath($,1) ; endfor ; - for $=p,reverse p : draw arrowheadonpath($,3/4) ; endfor ; - elseif t = 21 : - for $=1/5,1/2,4/5 : draw arrowheadonpath(p,$) ; endfor ; - elseif t = 22 : - for $=1/5,1/2,4/5 : draw arrowheadonpath(reverse p,$) ; endfor ; - elseif t = 23 : - for $=p,reverse p : draw arrowheadonpath($,1/4) ; endfor ; + if (t>0) and (length(p)>1) : + saveoptions ; + drawoptions(withpen pencircle scaled lw withcolor lc) ; + draw p ; + if t = 1 : + draw arrowheadonpath(p,1) ; + elseif t = 2 : + draw arrowheadonpath(reverse p,1) ; + elseif t = 3 : + for $ = p,reverse p : + draw arrowheadonpath($,1) ; + endfor ; + elseif t = 11 : + draw arrowheadonpath(p,1/2) ; + elseif t = 12 : + draw arrowheadonpath(reverse p,1/2) ; + elseif t = 13 : + for $=p,reverse p : + draw arrowheadonpath($,1) ; + endfor ; + for $=p,reverse p : + draw arrowheadonpath($,3/4) ; + endfor ; + elseif t = 21 : + for $=1/5,1/2,4/5 : + draw arrowheadonpath(p,$) ; + endfor ; + elseif t = 22 : + for $=1/5,1/2,4/5 : + draw arrowheadonpath(reverse p,$) ; + endfor ; + elseif t = 23 : + for $=p,reverse p : + draw arrowheadonpath($,1/4) ; + endfor ; + fi ; fi ; - fi ; enddef ; -endinput ; +endinput ; -- cgit v1.2.3