Python TriangleCollection Examples

Example #1

File: collection-triangles.py Project: glumpy/glumpy

    window.clear()
    triangles.draw()
    paths.draw()

@window.event
def on_init():
    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()))
triangles = TriangleCollection("agg", transform=transform, color='shared')
paths = PathCollection("agg", transform=transform, color='shared')
paths["linewidth"] = 10

P = star()
I = triangulate(P)

n = 64
for i in range(n):
    c = i/float(n)
    d = i
    x,y = np.random.uniform(0,800,2)
    s = 25
    triangles.append(P*s+(x,y,d), I, color=(0,0,0,.5))
    paths.append(P*s+(x,y,(d-1)), closed=True, color=(0,0,0,1))

Example #2

File: collection-triangles.py Project: tarwcz111111111/DashCam_python

    window.clear()
    triangles.draw()
    paths.draw()

@window.event
def on_init():
    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()))
triangles = TriangleCollection("agg", transform=transform, color='shared')
paths = PathCollection("agg", transform=transform, color='shared')
paths["linewidth"] = 10

P = star()
I = triangulate(P)

n = 64
for i in range(n):
    c = i/float(n)
    d = i
    x,y = np.random.uniform(0,800,2)
    s = 25
    triangles.append(P*s+(x,y,d), I, color=(0,0,0,.5))
    paths.append(P*s+(x,y,(d-1)), closed=True, color=(0,0,0,1))

Example #3

File: spherical-voronoi.py Project: drufat/glumpy

    gl.glEnable(gl.GL_BLEND)
    gl.glDepthMask(gl.GL_FALSE)
    outlines.draw()
    gl.glDepthMask(gl.GL_TRUE)


@window.event
def on_init():
    gl.glEnable(gl.GL_DEPTH_TEST)
    gl.glPolygonOffset(1, 1)
    gl.glEnable(gl.GL_LINE_SMOOTH)
    gl.glLineWidth(0.75)


transform = Trackball(Position())
cells = TriangleCollection("raw", transform=transform, color="shared")
outlines = PathCollection("raw", transform=transform, color="shared")

# Random points
n = 2000
points = np.random.normal(size=(n, 3))
points /= np.linalg.norm(points, axis=1)[:, np.newaxis]

# Voronoi cells
sv = SphericalVoronoi(points, 2, (0, 0, 0))
sv.sort_vertices_of_regions()

for region in sv.regions:
    z = np.random.uniform(0, 1)

    V = (1.0 + 0.1 * z) * sv.vertices[region]

Example #4

File: spherical-voronoi.py Project: tarwcz111111111/DashCam_python

    gl.glEnable(gl.GL_BLEND)
    gl.glDepthMask(gl.GL_FALSE)
    outlines.draw()
    gl.glDepthMask(gl.GL_TRUE)


@window.event
def on_init():
    gl.glEnable(gl.GL_DEPTH_TEST)
    gl.glPolygonOffset(1, 1)
    gl.glEnable(gl.GL_LINE_SMOOTH)
    gl.glLineWidth(0.75)


transform = Trackball(Position())
cells = TriangleCollection("raw", transform=transform, color='shared')
outlines = PathCollection("raw", transform=transform, color='shared')

# Random points
n = 2000
points = np.random.normal(size=(n, 3))
points /= np.linalg.norm(points, axis=1)[:, np.newaxis]

# Voronoi cells
sv = SphericalVoronoi(points, 2, (0, 0, 0))
sv.sort_vertices_of_regions()

for region in sv.regions:
    z = np.random.uniform(0, 1)

    V = (1.0 + 0.1 * z) * sv.vertices[region]