cflin wrote:
I second that. Some examples would be really helpful.
looo wrote:
Do you have a simple example or a short guide how to start?
One of the easiest examples to set up an optical system is:
Code: Select all
from pyrateoptics import build_rotationally_symmetric_optical_system
from pyrateoptics import draw
from pyrateoptics import raytrace
components = [(100, 0, 20, 1.5, "lens1front", {"is_stop": True}),
(-100, 0, 5, None, "lens1back", {}),
(0, 0, 100, None, "image", {})]
# (radius, cc, thickness, material, name, options)
(s, seq) = build_rotationally_symmetric_optical_system(components, name="my_opticalsystem")
r = raytrace(s, seq, 11, {"radius": 9.0})
draw(s, r) # show system + rays
It is stolen from the README.md and provides a lens with a refractive index of 1.5 with front and backside curvature radius of 100 mm. (As you can see in the components definition.) Further it generates the optical system, performs a raytrace of 11 rays in an xy fan and draws system together with the rays. The drawing function needs Matplotlib which is a good compromise if you don't want to use a GUI like FreeCAD.
In s there are several variables which provide access to the lens data. For e.g. modifying the tilt of on surface in comparison to another, just use:
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s.elements["stdelem"].surfaces["lens1front"].rootcoordinatesystem.tiltx.setvalue(0.1) # tilt first surface
s.rootcoordinatesystem.update() # update all coordinate systems
r = raytrace(s, seq, 21, {"radius": 9.0}) # trace again
draw(s, r) # show system + rays
I am not sure whether this code can be executed from the FreeCAD console, but on a plain python2.7 and python3.x console it should work.
Hope this helps for a first insight.
Best wishes
Johannes
(PS: Notice that the raytracing works, but some details are not tested and ready for production use, therefore do not rely too much on the results.)
Addon manager therefore to continue to work just fine. And pip approach being useful as an additional option/way to get modules/dependencies. Especially for modules relying on dependencies not provided by default.
