madgui.survey.camera module

Utilities for dealing with coordinate system / camera transformations.

Classes

Camera()

class madgui.survey.camera.Camera

Bases: PyQt5.QtCore.QObject

Attributes

distance	int(x=0) -> integer
far	int(x=0) -> integer
fov	float(x) -> floating point number
near	float(x) -> floating point number
phi	int(x=0) -> integer
psi	int(x=0) -> integer
theta	int(x=0) -> integer
updated(*args, **kwargs)	Call self as a function.

Methods

look_from(theta, phi[, psi])	Set camera position by rotating camera around its view target.
look_toward(theta, phi[, psi])	Rotate camera at fixed position.
projection(width, height)	Return a perspective projection matrix for a viewport with the given size.
translate(dx, dy, dz)	Move camera position and its view center along the local coordinate system.
zoom(scale)	Scale the figure uniformly along both axes.

distance = 1

far = 1000

fov = 70.0

look_from(theta, phi, psi=0)

Set camera position by rotating camera around its view target. The angles are the coordinates of the camera relative to the target, at a distance self.distance.

look_toward(theta, phi, psi=0)

Rotate camera at fixed position. The center of view is recalculated to be at distance self.distance from the camera position in the direction given by the angles.

near = 0.01

phi = 0

projection(width, height)

Return a perspective projection matrix for a viewport with the given size.

psi = 0

theta = 0

translate(dx, dy, dz)

Move camera position and its view center along the local coordinate system. Keeps angles fixed.

updated(*args, **kwargs)

Call self as a function.

zoom(scale)

Scale the figure uniformly along both axes.