X-Git-Url: https://git.ao2.it/experiments/RadialSymmetry.git/blobdiff_plain/350bd1d7d169f60f20ab95e1d7a117d48dea3b87..196017eff649c1cf75cb08647d30e086176bb26a:/Diagram.py?ds=inline diff --git a/Diagram.py b/Diagram.py index 74c3bb2..aa6e659 100755 --- a/Diagram.py +++ b/Diagram.py @@ -106,7 +106,7 @@ class Diagram(object): cr.line_to(v[0], v[1]) cr.close_path() - def draw_polygon(self, verts, fill_color=None, stroke_color=[0, 0, 0]): + def draw_polygon_by_verts(self, verts, fill_color=None, stroke_color=[0, 0, 0]): cr = self.cr if fill_color: @@ -121,7 +121,12 @@ class Diagram(object): cr.set_source_rgba(r, g, b, a) cr.stroke() - def draw_star(self, cx, cy, verts, stroke_color=[0, 0, 0]): + def draw_polygon(self, cx, cy, sides, r, theta=0.0, fill_color=None, stroke_color=[0, 0, 0]): + verts = self.get_regular_polygon(cx, cy, sides, r, theta) + self.draw_polygon_by_verts(verts, fill_color, stroke_color) + return verts + + def draw_star_by_verts(self, cx, cy, verts, stroke_color=[0, 0, 0]): cr = self.cr for v in verts: @@ -132,6 +137,14 @@ class Diagram(object): cr.set_source_rgba(r, g, b, a) cr.stroke() + def draw_star(self, cx, cy, sides, r, theta=0.0, stroke_color=[0, 0, 0]): + apothem = r * cos(pi / sides) + apothem_angle = theta + pi / sides + + verts = self.get_regular_polygon(cx, cy, sides, apothem, apothem_angle) + self.draw_star_by_verts(cx, cy, verts, stroke_color) + return verts + def draw_circle(self, cx, cy, size=10.0, fill_color=[0, 0, 0, 0.5], stroke_color=None): cr = self.cr @@ -163,8 +176,7 @@ class Diagram(object): cr.stroke() def draw_rect_from_center(self, cx, cy, width, height, theta=0, - fill=True, fill_color=[1, 1, 1, 0.8], - stroke=False, stroke_color=[0, 0, 0, 0.5]): + fill_color=[1, 1, 1, 0.8], stroke_color=None): cr = self.cr # the position of the center of a rectangle at (0,0) @@ -176,24 +188,23 @@ class Diagram(object): rx = cx - (mx * cos(theta) - my * sin(theta)) ry = cy - (mx * sin(theta) + my * cos(theta)) - self.draw_rect(rx, ry, width, height, theta, fill, fill_color, stroke, - stroke_color) + self.draw_rect(rx, ry, width, height, theta, fill_color, stroke_color) - def draw_rect(self, x, y, width, height, theta=0, fill=True, fill_color=[1, 1, 1, 0.8], - stroke=False, stroke_color=[0, 0, 0, 0.5]): + def draw_rect(self, x, y, width, height, theta=0, + fill_color=[1, 1, 1, 0.8], stroke_color=None): cr = self.cr cr.save() cr.translate(x, y) cr.rotate(theta) - if fill: + if fill_color: cr.rectangle(0, 0, width, height) r, g, b, a = self.color_to_rgba(fill_color) cr.set_source_rgba(r, g, b, a) cr.fill() - if stroke: + if stroke_color: cr.rectangle(0, 0, width, height) r, g, b, a = self.color_to_rgba(stroke_color) cr.set_source_rgba(r, g, b, a) @@ -204,8 +215,8 @@ class Diagram(object): def draw_centered_text(self, cx, cy, text, theta=0, color=[0, 0, 0], align_baseline=False, - bb_fill=True, bb_fill_color=[1, 1, 1, 0.8], - bb_stroke=False, bb_stroke_color=[0, 0, 0, 0.5]): + bb_fill_color=[1, 1, 1, 0.8], + bb_stroke_color=None): cr = self.cr x_bearing, y_bearing, width, height, x_advance = cr.text_extents(text)[:5] @@ -236,8 +247,8 @@ class Diagram(object): cr.translate(rx, ry) cr.rotate(theta) - if bb_fill or bb_stroke: - self.draw_rect(bb[0], bb[1], bb[2], bb[3], 0, bb_fill, bb_fill_color, bb_stroke, bb_stroke_color) + if bb_fill_color or bb_stroke_color: + self.draw_rect(bb[0], bb[1], bb[2], bb[3], 0, bb_fill_color, bb_stroke_color) r, g, b, a = self.color_to_rgba(color) cr.set_source_rgba(r, g, b, a) @@ -261,36 +272,36 @@ if __name__ == "__main__": theta = 0 - advance = diagram.draw_centered_text(x_offset, y, "Ciao", theta, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "Ciao", theta, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance - advance = diagram.draw_centered_text(x_offset, y, "____", theta + pi / 4, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "____", theta + pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance - advance = diagram.draw_centered_text(x_offset, y, "jxpqdlf", theta + pi / 2, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "jxpqdlf", theta + pi / 2, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance - advance = diagram.draw_centered_text(x_offset, y, "pppp", theta + 3 * pi / 4, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "pppp", theta + 3 * pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance - advance = diagram.draw_centered_text(x_offset, y, "dddd", theta + pi, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "dddd", theta + pi, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance - advance = diagram.draw_centered_text(x_offset, y, "Jjjj", theta + 5 * pi / 4, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "Jjjj", theta + 5 * pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance - advance = diagram.draw_centered_text(x_offset, y, "1369", theta + 3 * pi / 2, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "1369", theta + 3 * pi / 2, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance - advance = diagram.draw_centered_text(x_offset, y, "qqqq", theta + 7 * pi / 4, align_baseline=True, bb_stroke=True) + advance = diagram.draw_centered_text(x_offset, y, "qqqq", theta + 7 * pi / 4, align_baseline=True, bb_stroke_color=[0, 0, 0, 0.5]) x_offset += advance diagram.draw_line(0, y, 400, y, [0, 0, 1, 0.2]) - diagram.draw_rect(40, 40, 300, 100, stroke=True) - diagram.draw_rect(40, 40, 300, 100, pi / 30, stroke=True) + diagram.draw_rect(40, 40, 300, 100, stroke_color=[0, 0, 0, 0.8]) + diagram.draw_rect(40, 40, 300, 100, pi / 30, stroke_color=[0, 0, 0, 0.8]) - diagram.draw_rect(40, 250, 300, 100, stroke=True) - diagram.draw_rect_from_center(40 + 150, 250 + 50, 300, 100, theta=pi / 40, stroke=True, stroke_color=[1, 0, 0], fill=False) + diagram.draw_rect(40, 250, 300, 100, stroke_color=[0, 0, 0, 0.8]) + diagram.draw_rect_from_center(40 + 150, 250 + 50, 300, 100, theta=(pi / 40), stroke_color=[1, 0, 0], fill_color=None) diagram.show()