PinholeCamera

class cherab.lhd.observer.imaging.PinholeCamera

Bases: CCDArray

Observer modeling an idealised CCD-like imaging sensor with pinhole.

A ray triggered from each pixel always goes through the arbitrary pinhole point. The distance from pinhole and imaging sensor represents focal length.

Parameters:

pixelstuple[int, int], optional

A tuple of pixel dimensions for the camera, by default (512, 512).

widthfloat, optional

The CCD sensor x-width in metres, by default 35 mm.

focal_lengthfloat, optional

The distance between pinhole and CCD sensor, by default 24 mm.

pinhole_pointtuple[float, float], optional

The position of pinhole point from the centre of CCD, which represents as (x, y) coordinate, by default (0, 0).

pipelineslist[Pipeline], optional

The list of pipelines that will process the spectrum measured at each pixel by the camera, by default [RGBPipeline2D()].

**kwargs

kwargs and properties from Observer2D and _ObserverBase.

Methods

observe	Ask this Camera to Observe its world.
to	Returns an affine transform that, when applied to a vector or point, transforms the vector or point from the co-ordinate space of the calling node to the co-ordinate space of the target node.
to_local	Returns an affine transform from world space into this nodes local coordinate space.
to_root	Returns an affine transform from local space into the parent node's coordinate space.

Attributes

children
focal_length	Focal length in metres.
frame_sampler	The FrameSampler2D class for this observer.
max_wavelength	Upper wavelength bound for sampled spectral range.
meta
min_wavelength	Lower wavelength bound for sampled spectral range.
name	The name of this node.
parent	The parent of this node in the scenegraph.
pinhole_point	Pinhole point from the centre of CCD
pipelines	A list of pipelines to process the output spectra of these observations.
pixel_samples	The number of samples to take per pixel.
pixels
quiet
ray_extinction_min_depth	Minimum number of paths before russian roulette style ray extinction.
ray_extinction_prob	Probability of ray extinction after every material intersection.
ray_importance_sampling
ray_important_path_weight	Relative weight of important path sampling.
ray_max_depth	Maximum number of Ray paths before terminating Ray.
render_complete
render_engine
root
spectral_bins	The number of spectral samples over the wavelength range.
spectral_rays	The number of smaller sub-spectrum rays the full spectrum will be divided into.
transform	The transform for this node's coordinate system in relation to the parent node.
width	The CCD sensor x-width in metres.