# figures.rb require 'Tioga/FigureMaker' require './figure_styles.rb' class MyFigures include Tioga include MyFigureStyles include FigureConstants def t @figure_maker end def initialize @figure_maker = FigureMaker.default t.save_dir = 'figures_out' # t.autocleanup = false t.def_eval_function { |str| eval(str) } t.def_figure("Icon") { icon } t.def_figure("Rounded_Rect") { rounded_rect } t.def_figure("Curve") { curve } t.def_figure("Arc") { arc } t.def_figure("Fill_Rules") { fill_rules } t.def_figure("Line_Types") { line_types } t.def_figure("Caps_and_Joins") { caps_and_joins } t.def_figure("Rendering_Modes") { rendering_modes } t.def_figure("Marker_Names") { marker_names } t.def_figure("Text J_and_A") { justification_and_alignment } #t.def_figure("Test_Pattern") { test_pattern } t.def_figure("Strings") { strings } t.def_figure("Arrows") { show_arrows } t.def_figure("Arrows_second_take") { show_arrows_second_take } t.def_figure("Marker_Horizontal_Scaling") { marker_horizontal_scaling } t.def_figure("Marker_Vertical_Scaling") { marker_vertical_scaling } t.def_figure("Marker_Italic_Angle") { marker_italic_angle } t.def_figure("Marker_Ascent_Angle") { marker_ascent_angle } t.def_figure("Marker_Shadow_Effect") { marker_shadow_effect } t.def_figure("Framebox") { framebox } t.def_figure("Parbox") { parbox } t.def_figure("Minipages") { minipages } t.def_figure("Minipage_List") { minipage_list } t.def_figure("Minipage_Table") { minipage_table } t.def_figure("Math_Typesetting") { math_typesetting } t.def_figure("Squares") { both_squares } t.def_figure("Sample_Jpegs") { sample_jpegs } t.def_figure("Monochrome_Image") { mono_image } t.def_figure("RGB_Image") { rgb_image } t.def_figure("HLS_Image") { hls_image } t.def_figure("Axial_Shading") { axial_shading } t.def_figure("Radial_Shading") { radial_shading } t.def_figure("Dingbats") { dingbats } t.def_figure("PDF_Fonts") { pdf_fonts } t.def_figure("Subfigures") { subfigures } t.def_figure("Colors1") { colors1 } t.def_figure("Colors2") { colors2 } t.def_figure("Colors3") { colors3 } t.def_figure("Colors4") { colors4 } t.def_figure("Tex_Fonts") { tex_fonts } t.def_figure("Text_size") { text_size } t.def_figure("Text_size_with_rotation") { text_size_with_rotation } hues t.def_enter_page_function { enter_page } end def enter_page set_default_style # defined in figure_styles.rb # Set a reasonable size for t.default_page_width = 72*5 # in big-points (1/72 inch) t.default_page_height = t.default_page_width t.default_enter_page_function end def hues grays = [] arys = Array.new(12) { Array.new } ColorConstants.constants.each do |name| rgb = ColorConstants::const_get(name) if (rgb[0] == rgb[1] and rgb[1] == rgb[2]) grays << name else hls = t.rgb_to_hls(rgb) i = hls[0].floor/30 arys[i] << name end end grays.sort! { |a,b| as = t.rgb_to_hls(ColorConstants::const_get(a))[1]; bs = t.rgb_to_hls(ColorConstants::const_get(b))[1]; as <=> bs } arys.each { |ary| ary.sort! { |a,b| as = t.rgb_to_hls(ColorConstants::const_get(a))[1]; bs = t.rgb_to_hls(ColorConstants::const_get(b))[1]; as <=> bs } } colors = grays arys.each { |ary| colors.concat(ary) } @color_list = colors @color_list.reverse! end def color_swatch(name, x, y, width, height) yfrac = 0.7 dy = 0.75 t.fill_color = White t.fill_rect(x, y + yfrac * height, width, (1-yfrac) * height) t.fill_color = ColorConstants::const_get(name) t.fill_rect(x, y, width, yfrac * height) t.show_text('text' => name, 'x' => x + 0.5 * width, 'y' => y + dy * height, 'justification' => CENTERED, 'scale' => 0.55) t.line_color = Black t.stroke_width = 0.5 t.stroke_rect(x, y, width, height) end def color_row(names, y, x, dx, width, height) names.size.times { |i| color_swatch(names[i], x, y, width, height); x+= dx } end def color_page(first) sans_serif_style width = 0.13; height = 0.094 x = x0 = 0.02; y = y0 = 0.895 dx = 0.14; dy = 0.11 t.rescale(0.5) t.fill_color = Smoke; t.fill_rect(0, y0-6.2*dy, 7.15*dx, 7.3*dy) num_rows = 7 num_cols = 7 clr_num = first num_colors = @color_list.size num_rows.times do next_row = clr_num+num_cols next_row = num_colors if num_colors < next_row color_row(@color_list[clr_num...next_row], y, x, dx, width, height) y -= dy; x = x0; clr_num = next_row end end def colors1 color_page(0) end def colors2 color_page(49) end def colors3 color_page(98) end def colors4 color_page(147) end def dingcolumn(numbers, x, dx, y, dy) first = numbers[0] ddy = t.default_text_height_dy * 0.26 numbers.each do |num| i = num - first break if num >= 255 t.show_text('text' => sprintf("%3i", num), 'at' => [x, y-ddy], 'scale' => 0.5) t.show_marker('marker' => [ZapfDingbats, num], 'at' => [x+dx, y], 'scale' => 0.8) y -= dy end end def dingbats t.landscape t.rescale(0.8) t.show_text('text' => 'ZapfDingbats Set and Encoding', 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 0.9, 'position' => 0.5) background first = 33 x = 0.05 dx = 0.048 y = 0.95 dy = 0.045 percolumn = 21 spacing = 2.2 dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx numbers = (121..126).to_a first = 161; last = first + percolumn - 7 numbers.concat((first..last).to_a) dingcolumn(numbers, x, dx, y, dy) first = last + 1; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) first += percolumn; x += spacing*dx dingcolumn((first...first+percolumn).to_a, x, dx, y, dy) end def pdf_fonts background 14.times do |i| dy = 0.35 * cos(i*PI/7) dx = 0.35 * sin(i*PI/7) t.show_marker('font' => i+1, 'text' => 'abc', 'at' => [0.5+dx, 0.5+dy], 'scale' => 1.25) end end def tex_fonts background t.show_text('text' => 'Various fonts (currently not working)', 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 0.9, 'position' => 0.5) t.show_text('text' => 'Default font', 'x' => 0.02, 'y' => 0.93, 'justification' => LEFT_JUSTIFIED ) t.tex_fontfamily = "sfdefault" t.show_text('text' => 'Default sans serif', 'x' => 0.02, 'y' => 0.86, 'justification' => LEFT_JUSTIFIED ) end def rounded_rect t.show_text('text' => 'append\_rounded\_rect\_to\_path', 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 0.9, 'position' => 0.5) background x = y = 0.1 width = height = 0.8 dx = dy = 0.25 t.append_rounded_rect_to_path(x, y, width, height, dx, dy) t.stroke_color = SlateGray t.stroke_width = 10 t.stroke t.append_rounded_rect_to_path(x, y, width, height, dx, dy) t.clip jpg_image_transparent end def arc t.landscape t.show_text('text' => 'append\_arc\_to\_path', 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 0.9, 'position' => 0.5) background x_start = 0.75; y_start = 0.1 x_corner = 0.9; y_corner = 0.9 x_end = 0.1; y_end = 0.6 dx = 0.3; dy = 0.3 t.move_to_point(x_start, y_start) t.append_point_to_path(x_corner, y_corner) t.append_point_to_path(x_end, y_end) t.line_width = 1 t.line_color = LightBlue t.stroke t.append_arc_to_path(x_start, y_start, x_corner, y_corner, x_end, y_end, dx, dy) t.line_width = 2.5 t.line_color = DarkBlue t.stroke t.show_marker('marker' => Bullet, 'xs' => [x_start, x_corner, x_end], 'ys' => [y_start, y_corner, y_end], 'scale' => 0.6, 'color' => Crimson); end def curve t.landscape t.show_text('text' => 'append\_curve\_to\_path', 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 0.9, 'position' => 0.5) background t.clip_to_frame x0 = 0.75; y0 = 0.9; x1 = 0.9; y1 = 0.3 x2 = 0.4; y2 = 0.1; x3 = 0.1; y3 = 0.8 xs = [ x0, x1, x2, x3 ] ys = [ y0, y1, y2, y3 ] t.move_to_point(x0, y0) t.append_curve_to_path(x1, y1, x2, y2, x3, y3) t.line_width = 2.5; t.line_color = DarkBlue t.stroke t.show_marker('xs' => xs, 'ys' => ys, 'marker' => Bullet, 'scale' => 0.6, 'color' => Red); dx = t.default_text_height_dx * 1.4 t.show_label('x' => x0+dx, 'y' => y0, 'text' => "start", 'scale' => 0.9); scale = 1.2; dy = t.default_text_height_dy * 0.8 t.show_marker('at' => [x1, y1+dy], 'marker' => Circled1, 'scale' => scale); t.show_marker('at' => [x2, y2+dy], 'marker' => Circled2, 'scale' => scale); t.show_marker('at' => [x3, y3+dy], 'marker' => Circled3, 'scale' => scale); end def caps_and_joins t.rescale(0.55) t.subfigure('right_margin' => 0.5, 'top_margin' => 0.5) { line_caps } t.subfigure('left_margin' => 0.5, 'top_margin' => 0.5) { line_joins } end def justification_and_alignment t.rescale(0.55) t.subfigure('right_margin' => 0.5, 'top_margin' => 0.5) { text_justification } t.subfigure('left_margin' => 0.5, 'top_margin' => 0.5) { text_alignment } end def both_squares t.subfigure('right_margin' => 0.5, 'top_margin' => 0.5) { opaque_squares } t.subfigure('left_margin' => 0.5, 'top_margin' => 0.5) { transparent_squares } end def sample_jpegs t.subfigure('top_margin' => 0.67) do t.subfigure(t.column_margins('num_columns' => 3, 'column' => 1, 'column_margin' => 0.01)) { jpg_image } t.subfigure(t.column_margins('num_columns' => 3, 'column' => 2, 'column_margin' => 0.01)) { jpg_image_transparent } t.subfigure(t.column_margins('num_columns' => 3, 'column' => 3, 'column_margin' => 0.01)) { stencil_mask } end end def strings t.stroke_rect(0,0,1,1) center_x = 0.5; center_y = 0.5; len = 0.125 hls = t.rgb_to_hls(Red) angles = 10 delta = 360.0/angles equation = '\int_{-\infty}^{\infty} \! e^{-x^{2}}\, \! dx = \sqrt{\pi}' text = '\parbox{15em}{\begin{displaymath}' + equation + '\end{displaymath}}' angles.times do |angle| angle *= delta dx = len*cos(angle*RADIANS_PER_DEGREE) dy = len*sin(angle*RADIANS_PER_DEGREE) x = center_x + 2*dx; y = center_y + 2*dy; text_color = t.hls_to_rgb([angle/1.8 + 200, hls[1], hls[2]]) t.show_text('text' => text, 'color' => text_color, 'x' => x, 'y' => y, 'alignment' => ALIGNED_AT_MIDHEIGHT, 'scale' => 0.7, 'angle' => t.convert_to_degrees(dx,dy)) end end # In this example, we show how we can use measures of the text # transparently with Tioga: def text_size t.stroke_rect(0,0,1,1) t.rescale(0.5) tries = [ { 'text' => 'Using side/position instead of X and Y', 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 2, 'position' => 0.5 }, { 'x' => 0.2, 'y' => 0.8, 'justification' => LEFT_JUSTIFIED, 'alignment' => ALIGNED_AT_TOP, 'scale' => 4, 'text' => 'top left' }, { 'x' => 0.3, 'y' => 0.5, 'justification' => RIGHT_JUSTIFIED, 'alignment' => ALIGNED_AT_BOTTOM, 'scale' => 2, 'text' => 'bottom right' }, { 'x' => 0.3, 'y' => 0.2, 'justification' => CENTERED, 'alignment' => ALIGNED_AT_BASELINE, 'scale' => 2.3, 'text' => 'centered \raise-.5ex\hbox{b}aseline' }, { 'x' => 0.7, 'y' => 0.6, 'justification' => LEFT_JUSTIFIED, 'alignment' => ALIGNED_AT_MIDHEIGHT, 'scale' => 2, 'text' => 'left mid-height' }, { 'x' => 0.7, 'y' => 0.9, 'justification' => CENTERED, 'alignment' => ALIGNED_AT_MIDHEIGHT, 'scale' => 2, 'text' => 'rotated', 'angle' => -30 }, { 'x' => 0.5, 'y' => 0.4, 'justification' => RIGHT_JUSTIFIED, 'alignment' => ALIGNED_AT_BASELINE, 'scale' => 2, 'text' => 'a right-justified rotated text', 'angle' => 12 }, { 'x' => 1, 'y' => 0.4, 'justification' => LEFT_JUSTIFIED, 'alignment' => ALIGNED_AT_TOP, 'scale' => 2, 'text' => 'a left-justified rotated text', 'angle' => 240 }, ] i = 0 for try in tries a = { 'scale' => 1, 'measure' => "box#{i}" } a.update(try) t.show_text(a) size = t.get_text_size("box#{i}") i += 1 # We draw a box around the text: if size.key? 'width' xs = Dvector.new ys = Dvector.new for x,y in size['points'] xs << t.convert_output_to_figure_x(10*x) ys << t.convert_output_to_figure_y(10*y) end xs << xs[0] ys << ys[0] t.show_polyline(xs,ys, Red, nil, Line_Type_Dot) end t.show_marker({ 'x' => try['x'], 'y' => try['y'], 'marker' => MarkerConstants::Plus, 'scale' => 0.6, 'color' => Green, 'angle' => try['angle'] || 0 }) end end # In this example, we show how we can use measures of the text # transparently with Tioga: def text_size_with_rotation t.stroke_rect(0,0,1,1) t.rescale(0.5) equation = '\int_{-\infty}^{\infty} \! e^{-x^{2}}\, \! dx = \sqrt{\pi}' text = "\\fbox{$\\displaystyle #{equation}$}" nb = 5 nb.times do |i| scale = 0.5 + i * 0.2 angle = i * 37 x = (i+1)/(nb+1.0) y = x color = [1.0 - i * 0.2, i*0.2, 0] t.show_text('text' => text, 'color' => color, 'x' => x, 'y' => x, 'alignment' => ALIGNED_AT_MIDHEIGHT, 'scale' => scale , 'measure' => "box#{i}", 'angle' => angle ) size = t.get_text_size("box#{i}") if size.key? 'points' xs = Dvector.new ys = Dvector.new for x,y in size['points'] xs << t.convert_output_to_figure_x(10*x) ys << t.convert_output_to_figure_y(10*y) end t.stroke_color = color t.line_type = Line_Type_Dashes t.stroke_rect(xs.min, ys.min, (xs.max - xs.min),(ys.max - ys.min)) end end end def gradient_colormap t.landscape t.clip_to_frame t.axial_shading( 'start_point' => [0, 0], 'end_point' => [0, 1], 'colormap' => t.mellow_colormap ) end def text_justification background centerx = t.bounds_xmin + 0.5 * t.bounds_width t.show_text('text' => '\texttt Text attributes: justification', 'x' => centerx, 'y' => 0.9) dx = 0.05; y = 0.66; dy = -0.2; t.line_width = 0.7; t.stroke_color = Blue scale = 1.2 t.stroke_line(centerx, 0.13, centerx, 0.8) t.show_text('text' => 'Right Justified', 'at' => [centerx, y], 'justification' => RIGHT_JUSTIFIED, 'scale' => scale) y += dy t.show_text('text' => 'Centered', 'at' => [centerx, y], 'justification' => CENTERED, 'scale' => scale) y += dy t.show_text('text' => 'Left Justified', 'at' => [centerx, y], 'justification' => LEFT_JUSTIFIED, 'scale' => scale) end def text_alignment background centerx = t.bounds_xmin + 0.5 * t.bounds_width t.show_text('text' => '\texttt Text attributes: alignment', 'x' => centerx, 'y' => 0.9) dx = 0.05; y = 0.7; dy = -0.17; t.line_width = 0.7; t.stroke_color = Blue scale = 1.2 t.stroke_line(t.bounds_xmin+dx, y, t.bounds_xmax-dx, y) t.show_text('text' => 'Aligned at bottom', 'at' => [centerx, y], 'alignment' => ALIGNED_AT_BOTTOM, 'scale' => scale) y += dy t.stroke_line(t.bounds_xmin+dx, y, t.bounds_xmax-dx, y) t.show_text('text' => 'Aligned at baseline', 'at' => [centerx, y], 'alignment' => ALIGNED_AT_BASELINE, 'scale' => scale) y += dy t.stroke_line(t.bounds_xmin+dx, y, t.bounds_xmax-dx, y) t.show_text('text' => 'Aligned at mid-height', 'at' => [centerx, y], 'alignment' => ALIGNED_AT_MIDHEIGHT, 'scale' => scale) y += dy t.stroke_line(t.bounds_xmin+dx, y, t.bounds_xmax-dx, y) t.show_text('text' => 'Aligned at top', 'at' => [centerx, y], 'alignment' => ALIGNED_AT_TOP, 'scale' => scale) end def framebox t.landscape background centerx = t.bounds_xmin + 0.5 * t.bounds_width t.justification = CENTERED t.show_text('text' => 'Examples using \textbackslash framebox', 'x' => centerx, 'y' =>0.8) dx = 0.05; y = 0.6; dy = -0.15; t.line_width = 0.7; t.stroke_color = Blue t.rescale_text(0.75) t.show_text('text' => '\framebox[20em][c]{\textbackslash framebox[20em][c]\{ a, b, c \}}', 'at' => [centerx, y]) y += dy t.show_text('text' => '\framebox[20em][l]{\textbackslash framebox[20em][l]\{ a, b, c \}}', 'at' => [centerx, y]) y += dy t.show_text('text' => '\framebox[20em][r]{\textbackslash framebox[20em][r]\{ a, b, c \}}', 'at' => [centerx, y]) y += dy t.show_text('text' => '\framebox[20em][s]{\textbackslash framebox[20em][s]\{ a, b, c \}}', 'at' => [centerx, y]) end def show_arrows t.stroke_rect(0,0,1,1) center_x = 0.5; center_y = 0.5; len = 0.45 hls = t.rgb_to_hls(Red) angles = 36 delta = 360.0/angles angles.times do |angle| angle *= delta dx = len*cos(angle*RADIANS_PER_DEGREE) dy = len*sin(angle*RADIANS_PER_DEGREE) x = center_x + dx; y = center_y + dy; t.show_arrow('head' => [x,y], 'tail'=> [center_x, center_y], 'head_scale' => 1.5, 'tail_marker' => 'None', 'head_color' => t.hls_to_rgb([angle, hls[1], hls[2]])) end end def show_arrows_second_take t.stroke_rect(0,0,1,1) center_x = 0.5; center_y = 0.5; len = 0.45 hls = t.rgb_to_hls(Red) angles = 36 delta = 360.0/angles angles.times do |angle| angle *= delta dx = len*cos(angle*RADIANS_PER_DEGREE) dy = len*sin(angle*RADIANS_PER_DEGREE) x = center_x + dx; y = center_y + dy; t.show_arrow('head' => [x,y], 'tail'=> [center_x + 0.5 * dx, center_y + 0.5 * dy], 'head_scale' => 1.5, 'tail_marker' => Semicircle, 'tail_just' => RIGHT_JUSTIFIED, 'head_color' => t.hls_to_rgb([angle, hls[1], hls[2]]), 'tail_color' => t.hls_to_rgb([- angle, hls[1], hls[2]]), 'line_style' => Line_Type_Dash) end end def show_test_line(x0, y0, x1, y1) t.context do t.line_width = 3 t.stroke_color = Red t.stroke_line(x0, y0, x1, y1) end end def icon tioga_cool = true # set aspect ratio and font scale depending on whether root figure or not unless t.in_subfigure sz = 4.25; scale = 8 t.page_setup(sz*72,sz*72) t.set_frame_sides(0.05,0.95,0.91,0.09) # left, right, top, bottom in page coords else scale = 7 end t.fill_color = SlateGray t.fill_frame margin = 0.02 t.set_subframe('left' => margin, 'right' => margin, 'top' => margin, 'bottom' => margin) t.clip_to_frame saturation = (tioga_cool)? 0.4 : 1 starting_L = (tioga_cool)? 0.6 : 0.2 ending_L = (tioga_cool)? 0.9 : 1 hue = (tioga_cool)? (t.rgb_to_hls(Linen)[0]) : (t.rgb_to_hls(SlateGray)[0]) t.axial_shading( 'start_point' => [0, 0], 'end_point' => [0, 1], 'colormap' => t.create_gradient_colormap( 'hue' => hue, 'saturation' => saturation, 'starting_L' => starting_L, 'ending_L' => ending_L) ) t.stroke_color = Black t.line_width = 8 t.stroke_frame angle = 60; size = 3.5; shift = -1.0 t.show_text('text' => '\sffamily\textbf{Ruby}', 'side' => BOTTOM, 'pos' => 0.27, 'shift' => shift, 'scale' => size, 'angle' => angle) t.show_text('text' => '\sffamily\textbf{PDF}', 'side' => BOTTOM, 'pos' => 0.58, 'shift' => shift, 'scale' => size, 'angle' => angle) t.show_text('text' => '\textbf{\TeX}', 'side' => BOTTOM, 'pos' => 0.86, 'shift' => shift, 'scale' => size, 'angle' => angle) x = t.bounds_xmin + 0.5 * t.bounds_width y = 0.68 t.line_width = 2 t.fill_opacity = 0.6 t.show_marker('font' => Helvetica, 'string' => 'Tioga', 'scale' => scale, 'point' => [x+0.03,y-0.28], 'color' => Grey, 'mode' => FILL, 'horizontal_scale' => 0.9, 'vertical_scale' => -0.4, 'italic_angle' => -7) t.fill_opacity = 1.0 t.show_marker( 'font' => Helvetica_BoldOblique, 'string' => 'Tioga', 'scale' => scale, 'point' => [x+0.02,y], 'mode' => STROKE_AND_CLIP, 'horizontal_scale' => 0.9) if tioga_cool t.axial_shading( # this fills the 'Tioga' string 'start_point' => [0, -0.06], 'end_point' => [0, 1.4], 'colormap' => t.rainbow_colormap) else t.axial_shading( # this fills the 'Tioga' string 'start_point' => [0, 0.4], 'end_point' => [0, 2.3], 'colormap' => t.rainbow_colormap) end end def marker_horizontal_scaling t.landscape background t.show_text('text' => "Marker Horizontal Scaling", 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'position' => 0.5, 'scale' => 0.9) scale = 1.3 x = t.bounds_xmin + 0.5 * t.bounds_width dy = -0.2; y = 1 + dy; dx = 0.0 t.show_marker('string' => 'horizontal_scale = 1.0', 'horizontal_scale' => 1, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'horizontal_scale = 1.2', 'horizontal_scale' => 1.2, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'horizontal_scale = 0.8', 'horizontal_scale' => 0.8, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'horizontal_scale = -1.2', 'horizontal_scale' => -1.2, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) end def marker_vertical_scaling t.landscape background t.show_text('text' => "Marker Vertical Scaling", 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'position' => 0.5, 'scale' => 0.9) scale = 1.4 x = t.bounds_xmin + 0.5 * t.bounds_width dy = -0.2; y = 1 + dy; dx = 0.0 t.show_marker('string' => 'vertical_scale = 1.0', 'vertical_scale' => 1.0, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'vertical_scale = 1.2', 'vertical_scale' => 1.2, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'vertical_scale = 0.8', 'vertical_scale' => 0.8, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'vertical_scale = -1.0', 'vertical_scale' => -1.0, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) end def marker_italic_angle t.landscape background t.show_text('text' => "Marker Italic Angle", 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'position' => 0.5, 'scale' => 0.9) scale = 1.4 x = t.bounds_xmin + 0.5 * t.bounds_width dy = -0.25; y = 1 + dy; dx = 0.0 t.show_marker('string' => 'italic_angle = 0', 'italic_angle' => 0, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'italic_angle = -12', 'italic_angle' => -12, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'italic_angle = 12', 'italic_angle' => 12, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) end def marker_ascent_angle t.landscape background t.show_text('text' => "Marker Ascent Angle", 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'position' => 0.5, 'scale' => 0.9) scale = 1.4 x = t.bounds_xmin + 0.5 * t.bounds_width dy = -0.25; y = 1 + dy; dx = 0.0 t.show_marker('string' => 'ascent_angle = 0', 'ascent_angle' => 0, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'ascent_angle = -6', 'ascent_angle' => -6, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) x += dx; y += dy t.show_marker('string' => 'ascent_angle = 6', 'ascent_angle' => 6, 'color' => Blue, 'scale' => scale, 'point' => [x,y]) end def marker_shadow_effect t.landscape background scale = 2.6 t.line_width = 0.6 x = t.bounds_xmin + 0.5 * t.bounds_width dy = -0.5; y = 1 + dy; t.show_marker('string' => 'Shadow Effect', 'scale' => scale, 'point' => [x,y], 'mode' => FILL_AND_STROKE, 'alignment' => ALIGNED_AT_BASELINE, 'fill_color' => Blue, 'stroke_color' => Black) t.fill_opacity = 0.8 t.show_marker('string' => 'Shadow Effect', 'vertical_scale' => -0.4, 'fill_color' => Grey, 'italic_angle' => -30, 'scale' => scale, 'point' => [x+0.022,y-0.03]) end def test_pattern # to check alignment of pdf and tex t.line_width = 1 t.stroke_frame margin = 0.1 t.set_subframe( 'left' => margin, 'right' => margin, 'top' => margin, 'bottom' => margin) centerx = t.bounds_xmin + 0.5 * t.bounds_width chr_ht = t.default_text_height_dy t.stroke_color = Red t.line_width = 1 t.stroke_line(t.bounds_xmax, t.bounds_ymin, t.bounds_xmax, t.bounds_ymax) t.stroke_line(centerx, t.bounds_ymin, centerx, t.bounds_ymax) t.stroke_line(t.bounds_xmin, t.bounds_ymin, t.bounds_xmin, t.bounds_ymax) y = t.bounds_ymin; dy = t.bounds_height / 10 scale = 0.85; 10.times do t.stroke_line(t.bounds_xmin, y, t.bounds_xmax, y) t.show_text('text'=>"Left", 'x'=> t.bounds_xmin, 'y' => y, 'scale'=>0.5+scale, 'justification' => LEFT_JUSTIFIED) t.show_text('text'=>"Center", 'x'=> centerx, 'y' => y, 'scale'=>1.8-scale, 'justification' => CENTERED) t.show_text('text'=>"Right", 'x'=> t.bounds_xmax, 'y' => y, 'scale'=>0.5+scale, 'justification' => RIGHT_JUSTIFIED) scale = scale - 0.1 y = y + dy end t.stroke_line(t.bounds_xmin, t.bounds_ymax, t.bounds_xmax, t.bounds_ymax) t.justification = CENTERED t.show_text('text'=>"TeX and PDF Alignment Test Pattern", 'side'=> TOP, 'pos' => 0.5, 'shift'=>0.3) t.show_text('text'=>"Check for Proper Registration of Text and Graphics", 'side'=>BOTTOM, 'pos' => 0.5, 'shift'=> 1.6, 'scale'=>0.4) t.show_text( 'text'=>'If needed, adjust by changing {\sffamily FigureMaker.tex\_xoffset} ' + 'and {\sffamily FigureMaker.tex\_yoffset}.', 'side'=>BOTTOM, 'pos' => 0.5, 'shift'=> 3.9, 'scale'=>0.3) end def math_typesetting t.landscape background centerx = t.bounds_xmin + 0.5 * t.bounds_width equation = '\int_{-\infty}^{\infty} e^{\color{Red}-x^{2}}\, \! dx = ' + '\color{Green}\sqrt{\pi}' t.justification = CENTERED t.rescale_text(0.8) t.show_text('text' => 'Inline Math Mode', 'x'=>centerx, 'y' => t.bounds_ymin + 0.88 * t.bounds_height) t.show_text('text' => 'Display Math Mode', 'x'=> centerx, 'y' => t.bounds_ymin + 0.46 * t.bounds_height) t.rescale_text(0.8) t.show_text('text' => '$' + equation + '$', 'x'=> centerx, 'y' => t.bounds_ymin + 0.78 * t.bounds_height, 'scale'=>1.3) t.show_text('text'=> '$' + equation + '$', 'x'=> centerx, 'y' => t.bounds_ymin + 0.64 * t.bounds_height, 'angle' => 10, 'scale'=>1.3) equation = '\begin{displaymath}' + equation + '\end{displaymath}' equation = '\parbox{15em}{' + equation + '}' t.show_text('text' => equation, 'scale'=>1.3, 'x'=> centerx, 'y' => t.bounds_ymin + 0.33 * t.bounds_height) t.show_text('text' => equation, 'scale'=>1.3, 'angle' => 10, 'x' => centerx, 'y' => t.bounds_ymin + 0.16 * t.bounds_height) end def parbox t.portrait background centerx = t.bounds_xmin + 0.5 * t.bounds_width t.justification = CENTERED t.show_text('text' => 'Examples using \textbackslash parbox', 'x' => centerx, 'y' => 0.9) t.rescale_text(0.5) dx = 0.05; y = 0.78; dy = -0.16; t.line_width = 0.7; t.stroke_color = Blue t.show_text('text' => '\framebox{\parbox{20em}{\begin{enumerate}\item \textbackslash parbox\{20em\}\{...\} \item default height and position for list \end{enumerate}}}', 'at' => [centerx, y]) y += dy t.show_text('text' => '\framebox{\parbox[c][6em][t]{20em}{\begin{enumerate}\item \textbackslash parbox[c][6em][t]\{20em\}\{...\} \item position list at top of box \end{enumerate}}}', 'at' => [centerx, y]) y += dy t.show_text('text' => '\framebox{\parbox[c][6em][c]{20em}{\begin{enumerate}\item \textbackslash parbox[c][6em][c]\{20em\}\{...\} \item position list at center of box \end{enumerate}}}', 'at' => [centerx, y]) y += dy t.show_text('text' => '\framebox{\parbox[c][6em][b]{20em}{\begin{enumerate}\item \textbackslash parbox[c][6em][b]\{20em\}\{...\} \item position list at bottom of box \end{enumerate}}}', 'at' => [centerx, y]) y += dy t.show_text('text' => '\framebox{\parbox[c][6em][s]{20em}{\begin{enumerate}\item \textbackslash parbox[c][6em][s]\{20em\}\{...\} \item stretch list vertically to fill box \end{enumerate}}}', 'at' => [centerx, y]) end def minipages t.landscape background centerx = t.bounds_xmin + 0.5 * t.bounds_width t.show_text('text' => 'Examples using paragraph boxes', 'x' => centerx, 'y' => 0.9) t.rescale_text(0.5) t.justification = CENTERED str2 = 'The \textcolor{Red}{minipage} is a vertical alignment environment with a \textcolor{Red}{specified width}. It can contain paragraphs, lists, tables, and equations. Hyphenation and formatting is automatic.' str2 = '\parbox{15em}{' + str2 + '}' t.show_text('text' => str2, 'x'=> centerx, 'y' => t.bounds_ymin + 0.68 * t.bounds_height) t.show_text('text' => str2, 'x'=> centerx, 'y' => t.bounds_ymin + 0.30 * t.bounds_height, 'angle' => 20) end def minipage_list t.landscape background x = t.bounds_xmin + 0.25 * t.bounds_width t.justification = LEFT_JUSTIFIED t.show_text('text'=>'\texttt{\textbackslash begin\{itemize\}...}', 'x'=> x+0.05, 'y' => t.bounds_ymin + 0.925 * t.bounds_height) t.show_text('text'=>'\texttt{...\textbackslash end\{itemize\}}', 'x'=> x+0.05, 'y' => t.bounds_ymin + 0.07 * t.bounds_height) t.rescale(0.6) str2 = ' \begin{itemize} \item This is the \textcolor{Red}{first} entry of an itemized list. \item This is the \textcolor{Red}{second}. \item And this is the \textcolor{Red}{third}. \end{itemize} ' str2 = '\parbox{15em}{' + str2 + '}' t.show_text('text'=>str2, 'x'=> x, 'y' => t.bounds_ymin + 0.7 * t.bounds_height) t.show_text('text'=>str2, 'x'=> x, 'y' => t.bounds_ymin + 0.27 * t.bounds_height, 'angle' => 14) end def minipage_table t.landscape background x = t.bounds_xmin + 0.35 * t.bounds_width t.justification = LEFT_JUSTIFIED t.show_text('text'=>'\texttt{\textbackslash begin\{tabular\}...}', 'x'=> x-0.05, 'y' => t.bounds_ymin + 0.925 * t.bounds_height) t.show_text('text'=>'\texttt{...\textbackslash end\{tabular\}}', 'x'=> x-0.05, 'y' => t.bounds_ymin + 0.07 * t.bounds_height) t.rescale_text(0.6) str2 = ' \renewcommand{\arraystretch}{1.5} \begin{tabular}{|r|l|c|} \hline & \itshape Name & \itshape Code \\\ \hline 1 & \textcolor{Red}{Alice} & 7 \\\ \hline 2 & \textcolor{Green}{Bob} & 3 \\\ \hline 3 & \textcolor{Blue}{Charlie} & 5 \\\ \hline \end{tabular}' str2 = '\parbox{15em}{' + str2 + '}' t.show_text('text'=>str2, 'x'=> x, 'y' => t.bounds_ymin + 0.7 * t.bounds_height) t.show_text('text'=>str2, 'x'=> x, 'y' => t.bounds_ymin + 0.29 * t.bounds_height, 'angle' => 14) end def squares(opacity) t.stroke_color = SlateGray t.fill_opacity = opacity t.line_width = 1.5 t.fill_color = LemonChiffon t.fill_and_stroke_rect(0.05, 0.05, 0.9, 0.9) t.fill_color = DarkSlateGray width = height = 0.5 x = y = 0.1 t.fill_and_stroke_rect(x, y, width, height) t.fill_color = CadetBlue width *= 0.9; height *= 0.9; x += 0.1; y+= 0.1 t.fill_and_stroke_rect(x, y, width, height) t.fill_color = OrangeRed width *= 0.9; height *= 0.9; x += 0.1; y+= 0.1 t.fill_and_stroke_rect(x, y, width, height) t.fill_color = Aquamarine width *= 0.9; height *= 0.9; x += 0.1; y+= 0.1 t.fill_and_stroke_rect(x, y, width, height) t.fill_color = Lavender width *= 0.9; height *= 0.9; x += 0.1; y+= 0.1 t.fill_and_stroke_rect(x, y, width, height) t.fill_color = NavajoWhite width *= 0.9; height *= 0.9; x += 0.1; y+= 0.1 t.fill_and_stroke_rect(x, y, width, height) end def opaque_squares squares(1.0) end def transparent_squares squares(0.6) end def jpg_image t.show_image( # Cassini image of Jupiter with Io in foreground 'jpg' => "data/cassini.jpg", 'width' => 999, 'height' => 959, 'll' => [0.01, 0.01], 'lr' => [0.99, 0.01], 'ul' => [0.01, 0.99]) end def jpg_image_transparent t.show_image( 'jpg' => "data/cassini.jpg", 'width' => 999, 'height' => 959, 'll' => [0.01, 0.01], 'lr' => [0.99, 0.01], 'ul' => [0.01, 0.99]) t.fill_opacity = 0.6 t.show_image( # Lucy amazed by Io 'jpg' => "data/lucy.jpg", 'width' => 148, 'height' => 164, 'll' => [0.52, 0.97], 'lr' => [0.41, 0.52], 'ul' => [0.12, 0.97]) end def rgb_image background samples = "\277" "\000" "\000" "\000" "\277" "\000" "\000" "\000" "\277" "\237" "\237" "\237" t.show_image( 'll' => [0.1, 0.1], 'lr' => [0.9, 0.1], 'ul' => [0.1, 0.9], 'color_space' => 'RGB', 'w' => 2, 'h' => 2, 'data' => samples) end def hls_image background samples = t.string_rgb_to_hls("\277" "\000" "\000" "\000" "\277" "\000" "\000" "\000" "\277" "\237" "\237" "\237") t.show_image( 'll' => [0.1, 0.1], 'lr' => [0.9, 0.1], 'ul' => [0.1, 0.9], 'color_space' => 'HLS', 'w' => 2, 'h' => 2, 'data' => samples) end def mono_image_table(light, dark) num_cols = 6 num_rows = 6 table = Dtable.new(num_cols, num_rows) row0 = Dvector[light, dark, light, dark, light, dark] row1 = Dvector[dark, light, dark, light, dark, light] table.set_row(0,row0) table.set_row(1,row1) table.set_row(2,row0) table.set_row(3,row1) table.set_row(4,row0) table.set_row(5,row1) return table end def mono_image samples = t.create_monochrome_image_data(mono_image_table(0.1, 0.9), 'boundary' => 0.5) background t.fill_color = Black t.show_image( 'width' => 6, 'height' => 6, 'color_space' => 'mono', 'data' => samples, 'interpolate' => false, 'll' => [0.1, 0.1], 'lr' => [0.9, 0.1], 'ul' => [0.1, 0.9]) end def build_table(light, dark) num_cols = 8 num_rows = 8 table = Dtable.new(num_cols, num_rows) row0 = Dvector[light, dark, light, dark, light, dark, light, dark] row1 = Dvector[dark, light, dark, light, dark, light, dark, light] table.set_row(0,row0) table.set_row(1,row1) table.set_row(2,row0) table.set_row(3,row1) table.set_row(4,row0) table.set_row(5,row1) table.set_row(6,row0) table.set_row(7,row1) return table end def stencil_mask t.show_image( 'jpg' => "data/lucy.jpg", 'width' => 148, 'height' => 164, 'll' => [0.99, 0.01], 'lr' => [0.01, 0.01], 'ul' => [0.99, 0.99]) samples = t.create_monochrome_image_data(build_table(0.1, 0.9), 'boundary' => 0.5) dict = Hash.new dict['interpolate'] = false dict['ll'] = [0.1, 0.1] dict['lr'] = [0.9, 0.1] dict['ul'] = [0.1, 0.9] dict['color_space'] = 'mono' dict['w'] = 8 dict['h'] = 8 dict['data'] = samples t.show_image( 'jpg' => "data/cassini.jpg", 'width' => 999, 'height' => 959, 'stencil_mask' => dict, 'll' => [0.01, 0.01], 'lr' => [0.99, 0.01], 'ul' => [0.01, 0.99]) end def axial_shading t.landscape background t.clip_rect(0, 0, 1, 1) t.axial_shading( 'start_point' => [0, 0], 'end_point' => [1, 1], 'colormap' => t.mellow_colormap ) end def radial_shading t.landscape background t.clip_rect(0, 0, 1, 1) t.radial_shading( 'x_hat' => [0.5, 0.2], 'y_hat' => [0.0, 0.75], 'start_circle' => [0.75, 0.65, 0.9], 'end_circle' => [0.75, 0.65, 0.0], 'colormap' => t.intense_colormap, 'extend_start' => true) end def subfigures t.rescale_text(0.45) t.subfigure('right' => 0.5, 'bottom' => 0.5) { icon } t.subfigure('right' => 0.5, 'top' => 0.5) { t.stroke_color = White; math_typesetting } t.subfigure('left' => 0.5, 'bottom' => 0.5) { transparent_squares } t.subfigure('left' => 0.5, 'top' => 0.5) { jpg_image_transparent } end def star(eo_flag) t.fill_color = LightBlue t.line_width = 1 t.stroke_color = Black c = cos(4*PI/5) s = sin(4*PI/5) dx = 0; dy = 0.15 x = 0.25; y = 0.7 t.move_to_point(x+dx, y+dy) tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp t.append_point_to_path(x+dx, y+dy) tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp t.append_point_to_path(x+dx, y+dy) tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp t.append_point_to_path(x+dx, y+dy) tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp t.append_point_to_path(x+dx, y+dy) t.close_path if eo_flag t.eofill else t.fill end t.fill_color = Black dx = 0; dy = 0.15 x = 0.25; y = 0.7 tail = [x+dx, y+dy] tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx*c - dy*s; dy = dx*s + dy*c; dx = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') end def square1(eo_flag) x = 0.5; y = 0.3; dx = 0; dy = 0.15 t.move_to_point(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) t.close_path x = 0.5; y = 0.3; dx = 0; dy = 0.1 t.move_to_point(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) t.close_path t.fill_color = LightBlue if eo_flag t.eofill else t.fill end t.fill_color = Black x = 0.5; y = 0.3; dx = 0; dy = 0.15 tail = [x+dx, y+dy] tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') x = 0.5; y = 0.3; dx = 0; dy = 0.1 tail = [x+dx, y+dy] tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') end def square2(eo_flag) x = 0.75; y = 0.705; dx = 0; dy = 0.15 t.move_to_point(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = dy; dy = -tmp t.append_point_to_path(x+dx, y+dy) t.close_path x = 0.75; y = 0.705; dx = 0; dy = -0.1 t.move_to_point(x+dx, y+dy) tmp = dx; dx = -dy; dy = tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = -dy; dy = tmp t.append_point_to_path(x+dx, y+dy) tmp = dx; dx = -dy; dy = tmp t.append_point_to_path(x+dx, y+dy) t.close_path t.fill_color = LightBlue if eo_flag t.eofill else t.fill end t.fill_color = Black x = 0.75; y = 0.705; dx = 0; dy = 0.15 tail = [x+dx, y+dy] tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = dy; dy = -tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head x = 0.75; y = 0.705; dx = 0; dy = -0.1 tail = [x+dx, y+dy] tmp = dx; dx = -dy; dy = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = -dy; dy = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = -dy; dy = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head tmp = dx; dx = -dy; dy = tmp head = [x+dx, y+dy] t.show_arrow('tail' => tail, 'head' => head, 'tail_marker' => 'None') tail = head end def winding_number_rule background t.show_text('text' => "Winding Number Fill Rule", 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 0.7, 'position' => 0.5) t.rescale(0.3) star(false) square1(false) square2(false) end def even_odd_rule background t.show_text('text' => "Even-Odd Fill Rule", 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'scale' => 0.7, 'position' => 0.5) t.rescale(0.3) star(true) square1(true) square2(true) end def fill_rules t.subfigure('right_margin' => 0.5, 'top_margin' => 0.5) { winding_number_rule } t.subfigure('left_margin' => 0.5, 'top_margin' => 0.5) { even_odd_rule } end def line_type_example(y, type, type_name, txt) t.context do x_type_name = 0.6; x0 = 0.05; x1 = 1 - x0; x_description = x_type_name dy = -t.default_text_height_dy t.show_text('text' => type_name, 'x' => x_type_name, 'y' => y, 'justification' => RIGHT_JUSTIFIED, 'scale' => 0.8) t.show_text('text' => ' = ' + txt, 'x' => x_description, 'y' => y, 'justification' => LEFT_JUSTIFIED, 'scale' => 0.8) t.stroke_color = DarkBlue t.line_cap = LINE_CAP_BUTT t.line_type = type t.line_width = 2 y += 0.5 * dy t.stroke_line(x0, y, x1, y) end end def line_types t.landscape background y = 0.9; dy = -0.135 t.rescale(0.8) line_type_example(y, Line_Type_Solid, 'Line\_Type\_Solid', '[[ ], 0]') y += dy line_type_example(y, Line_Type_Dot, 'Line\_Type\_Dot', '[[1, 2], 0]') y += dy line_type_example(y, Line_Type_Dash, 'Line\_Type\_Dash', '[[4, 2], 0]') y += dy line_type_example(y, Line_Type_Long_Dash, 'Line\_Type\_Long\_Dash', '[[6, 2], 0]') y += dy line_type_example(y, Line_Type_Dot_Dash, 'Line\_Type\_Dot\_Dash', '[[1, 2, 4, 2], 0]') y += dy line_type_example(y, Line_Type_Dot_Long_Dash, 'Line\_Type\_Dot\_Long\_Dash', '[[1, 2, 6, 2], 0]') y += dy line_type_example(y, Line_Type_Short_Dash_Long_Dash, 'Line\_Type\_Short\_Dash\_Long\_Dash', '[[4, 2, 6, 2], 0]') end def line_cap_example(y, cap, cap_name) t.context do x_cap_name = 0.6; x0 = 0.3; x1 = 0.85; x_description = 0.15 dy = t.default_text_height_dy t.show_text('text' => cap_name, 'x' => x_cap_name, 'y' => y, 'justification' => RIGHT_JUSTIFIED) t.stroke_color = DarkBlue t.line_cap = cap t.line_width = 12 y -= 1.6*dy t.stroke_line(x0, y, x1, y) t.stroke_color = White t.line_cap = LINE_CAP_BUTT t.line_width = 1 t.stroke_line(x0, y, x1, y) t.show_marker('marker' => Bullet, 'scale' => 0.4, 'x' => x0, 'y' => y, 'color' => White) t.show_marker('marker' => Bullet, 'scale' => 0.4, 'x' => x1, 'y' => y, 'color' => White) end end def line_caps t.landscape background y = 0.8; dy = -0.27 t.rescale(0.9) line_cap_example(y, LINE_CAP_BUTT, 'LINE\_CAP\_BUTT') y += dy line_cap_example(y, LINE_CAP_ROUND, 'LINE\_CAP\_ROUND') y += dy line_cap_example(y, LINE_CAP_SQUARE, 'LINE\_CAP\_SQUARE') end def line_join_example(y, join, join_name) t.context do line_dy = 0.17 x_join_name = 0.65; x0 = 0.3; x2 = 0.75; x1 = 0.8; x_description = 0.15 dy = -t.default_text_height_dy t.show_text('text' => join_name, 'x' => x_join_name, 'y' => y+1.3*dy, 'justification' => RIGHT_JUSTIFIED) t.stroke_color = DarkBlue t.line_cap = LINE_CAP_BUTT t.line_join = join t.line_width = 12 y -= 0.5*dy t.move_to_point(x0, y) t.append_point_to_path(x1, y) t.append_point_to_path(x2, y-line_dy) t.stroke t.stroke_color = White t.line_width = 1 t.move_to_point(x0, y) t.append_point_to_path(x1, y) t.append_point_to_path(x2, y-line_dy) t.stroke t.show_marker('marker' => Bullet, 'scale' => 0.4, 'x' => x0, 'y' => y, 'color' => White) t.show_marker('marker' => Bullet, 'scale' => 0.4, 'x' => x1, 'y' => y, 'color' => White) t.show_marker('marker' => Bullet, 'scale' => 0.4, 'x' => x2, 'y' => y-line_dy, 'color' => White) end end def line_joins t.landscape background y = 0.8; dy = -0.27 t.rescale(0.9) line_join_example(y, LINE_JOIN_MITER, 'LINE\_JOIN\_MITER') y += dy line_join_example(y, LINE_JOIN_ROUND, 'LINE\_JOIN\_ROUND') y += dy line_join_example(y, LINE_JOIN_BEVEL, 'LINE\_JOIN\_BEVEL') end def rendering_mode_example(y, mode, mode_name, clipping, description) t.context do x_mode_name = 0.65; x_example = 0.8 t.show_text('text' => mode_name, 'x' => x_mode_name, 'y' => y-0.01, 'justification' => RIGHT_JUSTIFIED, 'scale' => 1.4) t.show_marker('marker' => HeartWide, 'scale' => 3.2, 'fill_color' => Blue, 'stroke_color' => Black, 'mode' => mode, 'x' => x_example, 'y' => y+0.01) return unless clipping t.context do t.line_width = 2 t.stroke_color = Red y -= 0.02 7.times { |i| t.stroke_line(x_mode_name, y+i*0.01, 1, y+i*0.01) } end end end def rendering_modes t.landscape background t.show_text('text' => "Marker Rendering Modes", 'side' => TOP, 'shift' => 0.6, 'justification' => CENTERED, 'position' => 0.5, 'scale' => 0.9) y = 0.89; dy = -0.11 t.rescale(0.6) t.stroke_color = White rendering_mode_example(y, FILL, 'FILL', false, 'Fill path with current fill\_color') y += dy rendering_mode_example(y, STROKE, 'STROKE', false, 'Stroke path with current stroke\_color') y += dy rendering_mode_example(y, FILL_AND_STROKE, 'FILL\_AND\_STROKE', false, 'Fill path, then stroke') y += dy rendering_mode_example(y, DISCARD, 'DISCARD', false, 'Neither fill nor stroke') y += dy rendering_mode_example(y, FILL_AND_CLIP, 'FILL\_AND\_CLIP', true, 'Fill and add to path for clipping') y += dy rendering_mode_example(y, STROKE_AND_CLIP, 'STROKE\_AND\_CLIP', true, 'Stroke and add to path for clipping') y += dy rendering_mode_example(y, FILL_STROKE_AND_CLIP, 'FILL\_STROKE\_AND\_CLIP', true, 'Fill, stroke, and add for clipping') y += dy rendering_mode_example(y, CLIP, 'CLIP', true, 'Add to path for clipping') end def background clr = t.rgb_to_hls(Tan) clr[1] = 0.97 t.fill_color = t.hls_to_rgb(clr) t.line_width = 2 t.fill_and_stroke_frame end def show_marker(name, x, y) x_name = x - 0.02 x_marker = x + 0.02 dy = t.default_text_height_dy * 0.4 t.show_text('text' => name, 'x' => x_name, 'y' => y, 'justification' => RIGHT_JUSTIFIED) t.show_marker('x' => x_marker, 'y' => y+dy, 'marker' => eval(name), 'scale' => 1.8, 'justification' => CENTERED); end def marker_names t.set_portrait background t.rescale(0.45) dy = -t.default_text_height_dy * 1.95 t.fill_color = Black x = 0.24; y = y_init = 0.94 list = [ 'Arrow', 'Arrowhead', 'Asterisk', 'Bar', 'BarThick', 'BarThin', 'Box', 'Bullet', 'Check', 'Circle', 'Club', 'Diamond', 'Semicircle', 'Heart', 'HeartWide', 'Spade', 'Square', 'Star', 'TriangleUp', 'TriangleDown', 'Plus', 'Times'] list.each { |name| show_marker(name, x, y); y += dy } x = 0.61; y = y_init list = [ 'ArrowOpen', 'ArrowheadOpen', 'AsteriskOpen', 'BarOpen', 'BarThickOpen', 'BarThinOpen', 'BoxOpen', 'BulletOpen', 'CheckOpen', 'CircleOpen', 'ClubOpen', 'DiamondOpen', 'SemicircleOpen', 'HeartOpen', 'HeartWideOpen', 'SpadeOpen', 'SquareOpen', 'StarOpen', 'TriangleUpOpen', 'TriangleDownOpen', 'PlusOpen', 'TimesOpen'] list.each { |name| show_marker(name, x, y); y += dy } x = 0.89; y = y_init list = [ 'Circled1', 'Circled2', 'Circled3', 'Circled4', 'Circled5', 'Circled6', 'Circled7', 'Circled8', 'Circled9', 'Circled10', 'SolidBall1', 'SolidBall2', 'SolidBall3', 'SolidBall4', 'SolidBall5', 'SolidBall6', 'SolidBall7', 'SolidBall8', 'SolidBall9', 'SolidBall10', 'Hand', 'OtherHand' ] list.each { |name| show_marker(name, x, y); y += dy } end end MyFigures.new