diff options
Diffstat (limited to 'plugin/mesh_dialog.py')
| -rw-r--r-- | plugin/mesh_dialog.py | 131 |
1 files changed, 110 insertions, 21 deletions
diff --git a/plugin/mesh_dialog.py b/plugin/mesh_dialog.py index 94edf0c..3544fd0 100644 --- a/plugin/mesh_dialog.py +++ b/plugin/mesh_dialog.py @@ -185,7 +185,7 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog): zone_outline, *_rest = zone_outlines width_per_trace = settings.trace_width + settings.space_width - grid_cell_width = width_per_trace * settings.num_traces + grid_cell_width = width_per_trace * settings.num_traces * 2 zone_outline_rotated = affinity.rotate(zone_outline, -settings.mesh_angle, origin=zone_outline.centroid) bbox = zone_outline_rotated.bounds @@ -254,13 +254,21 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog): def iter_neighbors(x, y): if x > 0: - yield x-1, y + yield x-1, y, 0b0100 if x < grid_cols: - yield x+1, y + yield x+1, y, 0b0001 if y > 0: - yield x, y-1 + yield x, y-1, 0b1000 if y < grid_rows: - yield x, y+1 + yield x, y+1, 0b0010 + + def reciprocal(mask): + return { + 0b0001: 0b0100, + 0b0010: 0b1000, + 0b0100: 0b0001, + 0b1000: 0b0010 + }[mask] def random_iter(it): l = list(it) @@ -274,18 +282,24 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog): x, y = exit_cell[1] visited = 0 + key = 0 stack = [] - while not_visited: - for n_x, n_y in random_iter(iter_neighbors(x, y)): + while not_visited or stack: + for n_x, n_y, mask in random_iter(iter_neighbors(x, y)): if (n_x, n_y) in not_visited: - dbg.add(grid[n_y][n_x], color=virihex(visited, max=num_to_visit)) - stack.append((x, y)) + dbg.add(grid[n_y][n_x], color=virihex(visited, max=num_to_visit), opacity=0.2) + key |= mask + stack.append((x, y, key)) not_visited.remove((n_x, n_y)) visited += 1 - x, y = n_x, n_y + x, y, key = n_x, n_y, reciprocal(mask) break else: - *stack, (x, y) = stack + for segment in Pattern.render(key, settings.num_traces): + segment = affinity.scale(segment, grid_cell_width, grid_cell_width, origin=(0, 0)) + segment = affinity.translate(segment, grid_origin[0] + x*grid_cell_width, grid_origin[1] + y*grid_cell_width) + dbg.add(segment, stroke_width=settings.trace_width, color='#ff000000', stroke_color='#ff000080') + *stack, (x, y, key) = stack for foo in anchor_outlines: dbg.add(foo, color='#0000ff00', stroke_width=0.05, stroke_color='#000000ff') @@ -302,6 +316,72 @@ class MeshPluginMainDialog(mesh_plugin_dialog.MainDialog): def quit(self, evt): self.Destroy() + +class Pattern: + @staticmethod + def render(key, n): + yield from Pattern.LUT[key](n) + + def draw_I(n): + for i in range(2*n): + sp = (i+0.5) * (1/(2*n)) + yield geometry.LineString([(sp, 0), (sp, 1)]) + + def draw_U(n): + for i in range(n): + sp = (i+0.5) * (1/(2*n)) + yield geometry.LineString([(sp, 0), (sp, 1-sp), (1-sp, 1-sp), (1-sp, 0)]) + + def draw_L(n): + for i in range(2*n): + sp = (i+0.5) * (1/(2*n)) + yield geometry.LineString([(sp, 0), (sp, 1-sp), (1, 1-sp)]) + + def draw_T(n): + for i in range(n): + sp = (i+0.5) * (1/(2*n)) + yield geometry.LineString([(0, sp), (1, sp)]) + yield geometry.LineString([(0, 1-sp), (sp, 1-sp), (sp, 1)]) + yield geometry.LineString([(1-sp, 1), (1-sp, 1-sp), (1, 1-sp)]) + + def draw_X(n): + for i in range(n): + sp = (i+0.5) * (1/(2*n)) + yield geometry.LineString([(0, sp), (sp, sp), (sp, 0)]) + yield geometry.LineString([(1-sp, 0), (1-sp, sp), (1, sp)]) + yield geometry.LineString([(0, 1-sp), (sp, 1-sp), (sp, 1)]) + yield geometry.LineString([(1-sp, 1), (1-sp, 1-sp), (1, 1-sp)]) + + def rotate(pattern, deg): + def wrapper(n): + for segment in pattern(n): + yield affinity.rotate(segment, deg, origin=(0.5, 0.5)) + return wrapper + + def raise_error(n): + return [] + raise ValueError('Tried to render invalid cell. This is a bug.') + + LUT = { + 0b0000: raise_error, + 0b0001: rotate(draw_U, 90), + 0b0010: rotate(draw_U, 180), + 0b0011: rotate(draw_L, 90), + 0b0100: rotate(draw_U, -90), + 0b0101: rotate(draw_I, -90), + 0b0110: rotate(draw_L, 180), + 0b0111: draw_T, + 0b1000: draw_U, + 0b1001: draw_L, + 0b1010: draw_I, + 0b1011: rotate(draw_T, -90), + 0b1100: rotate(draw_L, -90), + 0b1101: rotate(draw_T, 180), + 0b1110: rotate(draw_T, 90), + 0b1111: draw_X + } + + def virihex(val, max=1.0, alpha=1.0): r, g, b, _a = matplotlib.cm.viridis(val/max) r, g, b, a = [ int(round(0xff*c)) for c in [r, g, b, alpha] ] @@ -319,21 +399,30 @@ class DebugOutputWrapper: self.f = f self.objs = [] - def add(self, obj, color=None, stroke_width=0, stroke_color=None): - self.objs.append((obj, (color, stroke_color, stroke_width))) + def add(self, obj, color=None, stroke_width=0, stroke_color=None, opacity=1.0): + self.objs.append((obj, (color, stroke_color, stroke_width, opacity))) - def gen_svg(self, obj, fill_color=None, stroke_color=None, stroke_width=None): + def gen_svg(self, obj, fill_color=None, stroke_color=None, stroke_width=None, opacity=1.0): fill_color = fill_color or '#ff0000aa' stroke_color = stroke_color or '#000000ff' stroke_width = 0 if stroke_width is None else stroke_width - exterior_coords = [ ["{},{}".format(*c) for c in obj.exterior.coords] ] - interior_coords = [ ["{},{}".format(*c) for c in interior.coords] for interior in obj.interiors ] - path = " ".join([ - "M {0} L {1} z".format(coords[0], " L ".join(coords[1:])) - for coords in exterior_coords + interior_coords]) - return (f'<path fill-rule="evenodd" fill="{fill_color}" stroke="{stroke_color}" ' - f'stroke-width="{stroke_width}" opacity="0.6" d="{path}" />') + if isinstance(obj, polygon.Polygon): + exterior_coords = [ ["{},{}".format(*c) for c in obj.exterior.coords] ] + interior_coords = [ ["{},{}".format(*c) for c in interior.coords] for interior in obj.interiors ] + all_coords = exterior_coords + interior_coords + path = " ".join([ + "M {0} L {1} z".format(coords[0], " L ".join(coords[1:])) + for coords in all_coords]) + elif isinstance(obj, geometry.LineString): + all_coords = [ ["{},{}".format(*c) for c in obj.coords] ] + path = " ".join([ + "M {0} L {1}".format(coords[0], " L ".join(coords[1:])) + for coords in all_coords]) + else: + raise ValueError(f'Unhandled shapely object type {type(obj)}') + return (f'<path fill-rule="evenodd" fill="{fill_color}" opacity="{opacity}" stroke="{stroke_color}" ' + f'stroke-width="{stroke_width}" d="{path}" />') def save(self, margin:'unit'=5, scale:'px/unit'=10): #specify margin in coordinate units |