window.clear()
polys.draw()
paths.draw()
Albers = ConicEqualArea(scale=2 * 1285,
parallels=(29.5, 45.5),
rotate=(96, 0),
translate=(0, 0),
center=(0.38, -0.41))
transform = PanZoom(OrthographicProjection(Albers(Position()), aspect=1))
paths = PathCollection("agg+",
transform=transform,
linewidth='shared',
color="shared")
polys = PolygonCollection("raw", transform=transform, color="shared")
with open(data.get("us.json"), 'r') as file:
topology = json.load(file)
scale = topology['transform']['scale']
translate = topology['transform']['translate']
arcs = topology["arcs"]
linewidth = 2.5
color = 0.0, 0.0, 0.0, 1.0
land = topology["objects"]["land"]
for coords in geometry(land, arcs, scale, translate)["coordinates"]:
for path in coords:
V = np.zeros((len(path), 3))
V[:, :2] = np.array(path)
gl.glEnable(gl.GL_DEPTH_TEST)
@window.event
def on_key_press(key, modifiers):
if key == app.window.key.SPACE:
transform.reset()
transform = PanZoom(OrthographicProjection(Position(), yinvert=True),
aspect=None)
paths = PathCollection("agg+",
transform=transform,
linewidth='shared',
color="shared")
polygons = PolygonCollection("agg", transform=transform)
z = 0
for path in tiger.paths:
for vertices, closed in path.vertices:
if len(vertices) < 3:
continue
if path.style.stroke is not None:
vertices[:, 2] = z + 0.5
if path.style.stroke_width:
stroke_width = path.style.stroke_width.value
else:
stroke_width = 2.0
paths.append(vertices,
closed=closed,
color=path.style.stroke.rgba,
@window.event
def on_mouse_release(x, y, button):
global P
if len(paths) > 0: del paths[0]
if len(polys) > 0: del polys[0]
if len(P):
paths.append(np.array(P), closed=True)
polys.append(np.array(P))
@window.event
def on_mouse_drag(x, y, dx, dy, button):
global P
P.append((x, window.height - y, 0))
if len(paths) > 0: del paths[0]
paths.append(np.array(P), closed=False)
transform = OrthographicProjection(Position())
paths = PathCollection(mode="agg", transform=transform)
polys = PolygonCollection(mode="agg", transform=transform, color="global")
paths["linewidth"] = 1.0
paths["color"] = 0.0, 0.0, 0.0, 1.00
polys["color"] = 0.0, 0.0, 0.0, 0.10
window.attach(paths["transform"])
window.attach(paths["viewport"])
app.run()
