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from pyglet.window import key
from pyglet.window.mouse import LEFT, RIGHT, MIDDLE
from sympy.plotting.pygletplot.util import get_direction_vectors, get_basis_vectors
class PlotController:
normal_mouse_sensitivity = 4.0
modified_mouse_sensitivity = 1.0
normal_key_sensitivity = 160.0
modified_key_sensitivity = 40.0
keymap = {
key.LEFT: 'left',
key.A: 'left',
key.NUM_4: 'left',
key.RIGHT: 'right',
key.D: 'right',
key.NUM_6: 'right',
key.UP: 'up',
key.W: 'up',
key.NUM_8: 'up',
key.DOWN: 'down',
key.S: 'down',
key.NUM_2: 'down',
key.Z: 'rotate_z_neg',
key.NUM_1: 'rotate_z_neg',
key.C: 'rotate_z_pos',
key.NUM_3: 'rotate_z_pos',
key.Q: 'spin_left',
key.NUM_7: 'spin_left',
key.E: 'spin_right',
key.NUM_9: 'spin_right',
key.X: 'reset_camera',
key.NUM_5: 'reset_camera',
key.NUM_ADD: 'zoom_in',
key.PAGEUP: 'zoom_in',
key.R: 'zoom_in',
key.NUM_SUBTRACT: 'zoom_out',
key.PAGEDOWN: 'zoom_out',
key.F: 'zoom_out',
key.RSHIFT: 'modify_sensitivity',
key.LSHIFT: 'modify_sensitivity',
key.F1: 'rot_preset_xy',
key.F2: 'rot_preset_xz',
key.F3: 'rot_preset_yz',
key.F4: 'rot_preset_perspective',
key.F5: 'toggle_axes',
key.F6: 'toggle_axe_colors',
key.F8: 'save_image'
}
def __init__(self, window, *, invert_mouse_zoom=False, **kwargs):
self.invert_mouse_zoom = invert_mouse_zoom
self.window = window
self.camera = window.camera
self.action = {
# Rotation around the view Y (up) vector
'left': False,
'right': False,
# Rotation around the view X vector
'up': False,
'down': False,
# Rotation around the view Z vector
'spin_left': False,
'spin_right': False,
# Rotation around the model Z vector
'rotate_z_neg': False,
'rotate_z_pos': False,
# Reset to the default rotation
'reset_camera': False,
# Performs camera z-translation
'zoom_in': False,
'zoom_out': False,
# Use alternative sensitivity (speed)
'modify_sensitivity': False,
# Rotation presets
'rot_preset_xy': False,
'rot_preset_xz': False,
'rot_preset_yz': False,
'rot_preset_perspective': False,
# axes
'toggle_axes': False,
'toggle_axe_colors': False,
# screenshot
'save_image': False
}
def update(self, dt):
z = 0
if self.action['zoom_out']:
z -= 1
if self.action['zoom_in']:
z += 1
if z != 0:
self.camera.zoom_relative(z/10.0, self.get_key_sensitivity()/10.0)
dx, dy, dz = 0, 0, 0
if self.action['left']:
dx -= 1
if self.action['right']:
dx += 1
if self.action['up']:
dy -= 1
if self.action['down']:
dy += 1
if self.action['spin_left']:
dz += 1
if self.action['spin_right']:
dz -= 1
if not self.is_2D():
if dx != 0:
self.camera.euler_rotate(dx*dt*self.get_key_sensitivity(),
*(get_direction_vectors()[1]))
if dy != 0:
self.camera.euler_rotate(dy*dt*self.get_key_sensitivity(),
*(get_direction_vectors()[0]))
if dz != 0:
self.camera.euler_rotate(dz*dt*self.get_key_sensitivity(),
*(get_direction_vectors()[2]))
else:
self.camera.mouse_translate(0, 0, dx*dt*self.get_key_sensitivity(),
-dy*dt*self.get_key_sensitivity())
rz = 0
if self.action['rotate_z_neg'] and not self.is_2D():
rz -= 1
if self.action['rotate_z_pos'] and not self.is_2D():
rz += 1
if rz != 0:
self.camera.euler_rotate(rz*dt*self.get_key_sensitivity(),
*(get_basis_vectors()[2]))
if self.action['reset_camera']:
self.camera.reset()
if self.action['rot_preset_xy']:
self.camera.set_rot_preset('xy')
if self.action['rot_preset_xz']:
self.camera.set_rot_preset('xz')
if self.action['rot_preset_yz']:
self.camera.set_rot_preset('yz')
if self.action['rot_preset_perspective']:
self.camera.set_rot_preset('perspective')
if self.action['toggle_axes']:
self.action['toggle_axes'] = False
self.camera.axes.toggle_visible()
if self.action['toggle_axe_colors']:
self.action['toggle_axe_colors'] = False
self.camera.axes.toggle_colors()
if self.action['save_image']:
self.action['save_image'] = False
self.window.plot.saveimage()
return True
def get_mouse_sensitivity(self):
if self.action['modify_sensitivity']:
return self.modified_mouse_sensitivity
else:
return self.normal_mouse_sensitivity
def get_key_sensitivity(self):
if self.action['modify_sensitivity']:
return self.modified_key_sensitivity
else:
return self.normal_key_sensitivity
def on_key_press(self, symbol, modifiers):
if symbol in self.keymap:
self.action[self.keymap[symbol]] = True
def on_key_release(self, symbol, modifiers):
if symbol in self.keymap:
self.action[self.keymap[symbol]] = False
def on_mouse_drag(self, x, y, dx, dy, buttons, modifiers):
if buttons & LEFT:
if self.is_2D():
self.camera.mouse_translate(x, y, dx, dy)
else:
self.camera.spherical_rotate((x - dx, y - dy), (x, y),
self.get_mouse_sensitivity())
if buttons & MIDDLE:
self.camera.zoom_relative([1, -1][self.invert_mouse_zoom]*dy,
self.get_mouse_sensitivity()/20.0)
if buttons & RIGHT:
self.camera.mouse_translate(x, y, dx, dy)
def on_mouse_scroll(self, x, y, dx, dy):
self.camera.zoom_relative([1, -1][self.invert_mouse_zoom]*dy,
self.get_mouse_sensitivity())
def is_2D(self):
functions = self.window.plot._functions
for i in functions:
if len(functions[i].i_vars) > 1 or len(functions[i].d_vars) > 2:
return False
return True
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