九点锚点

1# Gallery: positioning / anchors2page = canvas(name="Nine anchors", size=(120 mm, 80 mm), background="#f7f9fc")3font = "DejaVu Sans"4heading = text(content="Nine anchors", font_family=font, font_size=14 pt, color="#203864")5page.add(heading, target=page.top_left, offset=(7 mm, 5 mm))6# BEGIN DEMO7panel = rect(size=(72 mm, 45 mm), fill="#e6f2f3", border_color="#087f8c", border_width=0.5 mm)8placed = page.add(panel, target=page.top_left, offset=(24 mm, 26 mm))9dot = ellipse(size=(4 mm, 4 mm), fill="#df6e70")10page.add(dot, anchor=center, target=placed.top_left)11page.add(dot, anchor=center, target=placed.top_center)12page.add(dot, anchor=center, target=placed.top_right)13page.add(dot, anchor=center, target=placed.middle_left)14page.add(dot, anchor=center, target=placed.center)15page.add(dot, anchor=center, target=placed.middle_right)16page.add(dot, anchor=center, target=placed.bottom_left)17page.add(dot, anchor=center, target=placed.bottom_center)18page.add(dot, anchor=center, target=placed.bottom_right)19# END DEMO