v_fg_color = fg_color;
v_bg_color = bg_color;
v_orientation = vec2(cos(orientation), sin(orientation));
gl_Position = <transform(position)>;
float scale = (3.5 - length(gl_Position.xyz)/length(vec3(1.5)));
v_fg_color.a = scale;
v_bg_color.a = scale;
scale=1;
v_size = scale * size;
gl_PointSize = M_SQRT2 * size * scale + 2.0 * (linewidth + 1.5*antialias);
<viewport.transform>;
}
"""
markers = MarkerCollection(marker="disc", vertex=vertex,
viewport = viewport, transform=transform)
C, La, Lo = [], [], []
with open(data.get("capitals.csv"), 'r') as file:
reader = csv.reader(file, delimiter=',')
next(reader, None) # skip the header
for row in reader:
capital = row[1]
latitude = np.pi/2 + float(row[2])*np.pi/180
longitude = np.pi + float(row[3])*np.pi/180
C.append(capital)
La.append(latitude)
Lo.append(longitude)
P = spheric_to_cartesian(Lo, La, radius*1.01)
markers.append(P, bg_color = (1,1,1,1), fg_color=(.25,.25,.25,1), size = 10)
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_FILL)
polygon.draw(gl.GL_TRIANGLE_FAN)
gl.glLineWidth(1.0)
polygon["color"] = 0.50, 0.50, 0.50, 1.00
gl.glPolygonMode(gl.GL_FRONT_AND_BACK, gl.GL_LINE)
polygon.draw(gl.GL_TRIANGLE_FAN)
gl.glLineWidth(3.0)
polygon["color"] = 0.00, 0.00, 0.00, 1.00
polygon.draw(gl.GL_LINE_LOOP, O)
points.draw()
np.random.seed(1)
P = 0.95 * np.random.uniform(-1, 1, (50, 3))
H = P[scipy.spatial.ConvexHull(P[:, :2]).vertices]
points = MarkerCollection(marker="disc")
points.append(H, bg_color=(1, 1, 1, 1), size=16)
points.append(P, bg_color=(0, 0, 0, 1), size=4)
P = P[scipy.spatial.ConvexHull(P[:, :2]).vertices]
polygon = gloo.Program(vertex, fragment, count=len(P))
polygon["position"] = P
O = scipy.spatial.ConvexHull(P[:, :2]).vertices
O = O.astype(np.uint32).view(gloo.IndexBuffer)
app.run()
import numpy as np
from glumpy import app
from glumpy.graphics.collections import MarkerCollection
window = app.Window(1024, 1024, color=(1, 1, 1, 1))
@window.event
def on_draw(dt):
window.clear()
markers.draw()
markers['orientation'] += np.random.uniform(0.0, 0.1, len(markers))
del markers[0]
if not len(markers):
app.quit()
n = 256
markers = MarkerCollection(orientation='local')
markers.append(np.random.uniform(-1, 1, (n, 3)),
bg_color=np.random.uniform(0, 1, (n, 4)),
size=64,
fg_color=(0, 0, 0, 1))
window.attach(markers["transform"])
window.attach(markers["viewport"])
app.run()