import numpy as np
from vispy import app
from vispy import gloo
from vispy.gloo import gl
app.use('glfw')
vertex = """
attribute float x;
attribute float y;
attribute float a;
varying float v_a;
void main (void)
{
v_a = a;
gl_Position = vec4(x, y, 0.0, 1.0);
}
"""
fragment = """
varying float v_a;
void main()
{
gl_FragColor = vec4(1.0-v_a);
}
"""
class Window(app.Canvas):
def __init__(self, n=50):
This example shows how to actively select and test the glut backend.
You should see a black window and any mouse or keyboard event should be
detected. A timer is also run every second and it should print "tick !"
every second.
Notes
-----
Depending on on your glut implementation (native or freeglut), the mouse wheel
event may or may not be detected. Furthermore, glut has no utf-8 support and
non ascii-key will most likely produces garbage.
"""
from vispy import app
from vispy.gloo import gl
app.use('glut')
class Canvas(app.Canvas):
def __init__(self, *args, **kwargs):
app.Canvas.__init__(self, *args, **kwargs)
timer = app.Timer(1.0)
timer.connect(self.on_timer)
timer.start()
def on_initialize(self, event):
gl.glClearColor(0, 0, 0, 1)
print('on_initialize')
def on_close(self, event):
This example shows how to actively select and test the glut backend.
You should see a black window and any mouse or keyboard event should be
detected. A timer is also ran every second and it should print "tick !"
every second.
Note:
====
Depending on on your glut implementation (native or freeglut), the mouse wheel
event may or may not be detected. Furthermore, glut has no utf-8 support and
non ascii-key will most likely produces garbage.
"""
from vispy import app
from vispy.gloo import gl
app.use('glut')
class Canvas(app.Canvas):
def __init__(self, *args, **kwargs):
app.Canvas.__init__(self, *args, **kwargs)
timer = app.Timer(1.0)
timer.connect(self.on_timer)
timer.start()
def on_initialize(self, event):
gl.glClearColor(0, 0, 0, 1)
print('on_initialize')
def on_close(self, event):
print('on_close')
# !/usr/bin/env python
# -*- coding: utf-8 -*-
"""
This example shows how to actively select and test the qt backend.
You should see a black window and any mouse or keyboard event should be
detected. A timer is also run every second and it should print "tick !"
every second.
"""
from vispy import app
from vispy.gloo import gl
app.use('qt')
class Canvas(app.Canvas):
def __init__(self, *args, **kwargs):
app.Canvas.__init__(self, *args, **kwargs)
timer = app.Timer(1.0)
timer.connect(self.on_timer)
timer.start()
def on_initialize(self, event):
gl.glClearColor(0, 0, 0, 1)
print('on_initialize')
def on_close(self, event):
print('on_close')
def on_resize(self, event):
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
This example shows how to actively select and test the pyglet backend.
You should see a black window and any mouse or keyboard event should be
detected. A timer is also ran every second and it should print "tick !"
every second.
"""
from vispy import app
from vispy.gloo import gl
app.use('pyglet')
class Canvas(app.Canvas):
def __init__(self, *args, **kwargs):
app.Canvas.__init__(self, *args, **kwargs)
timer = app.Timer(1.0)
timer.connect(self.on_timer)
timer.start()
def on_initialize(self, event):
gl.glClearColor(0,0,0,1)
print('on_initialize')
def on_close(self, event):
print('on_close')
def on_resize(self, event):
print('on_resize (%dx%d)' % event.size)
import numpy as np
from vispy import app
from vispy import gloo
from vispy.gloo import gl
app.use('glfw')
vertex = """
attribute float x;
attribute float y;
void main (void)
{
gl_Position = vec4(x, y, 0.0, 1.0);
}
"""
fragment = """
void main()
{
gl_FragColor = vec4(0.0, 0.0, 0.0, 1.0);
}
"""
class Window(app.Canvas):
def __init__(self, n=50):
app.Canvas.__init__(self)
self.program = gloo.Program(vertex, fragment, n)
gl.glClearColor(1, 1, 1, 1)
self.program['x'] = np.linspace(-1.0, +1.0, n)
self.program['y'] = np.random.uniform(-0.5, +0.5, n)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
This example shows how to actively select and test the pyglet backend.
You should see a black window and any mouse or keyboard event should be
detected. A timer is also ran every second and it should print "tick !"
every second.
"""
from vispy import app
from vispy.gloo import gl
app.use('pyglet')
class Canvas(app.Canvas):
def __init__(self, *args, **kwargs):
app.Canvas.__init__(self, *args, **kwargs)
timer = app.Timer(1.0)
timer.connect(self.on_timer)
timer.start()
def on_initialize(self, event):
gl.glClearColor(0, 0, 0, 1)
print('on_initialize')
def on_close(self, event):
print('on_close')
def on_resize(self, event):
print('on_resize (%dx%d)' % event.size)
#!/usr/bin/env python
# -*- coding: utf-8 -*-
"""
A GLSL sandbox application based on the spinning cube. Requires PySide
or PyQt4.
"""
import numpy as np
from vispy import app, gloo, dataio
from vispy.util.transforms import perspective, translate, rotate
# Force using qt and take QtCore+QtGui from backend module,
# since we do not know whether PySide or PyQt4 is used
app.use("qt")
QtCore = (app.default_app.backend_module.QtCore,)
QtGui = app.default_app.backend_module.QtGui
VERT_CODE = """
uniform mat4 u_model;
uniform mat4 u_view;
uniform mat4 u_projection;
attribute vec3 a_position;
attribute vec2 a_texcoord;
varying vec2 v_texcoord;
void main()
{
v_texcoord = a_texcoord;