Initial Project Roadmap

[EiffL]

This issue is to discuss the various aspects of the roadmap necessary to reach a minimal implementation following the guidelines of the design document and reaching our initial target of replicating demo1.py.

Feel free to comment below if you see important missing steps.

Feature implementation

Adding necessary objects:

• Minimal base class GSObject compatible with JAX tracing, and Sum, Gaussian, Exponentional #6
• Adds jittable Position object #11
• Adds jittable wcs and Transformation #12
• Adds jittable Bounds #15
• Adds jittable Image #16
• InterpolatedImage
• Implement GalSim Shear object #18
• Implement BaseNoise and GaussianNoise #19
• GaussianNoise

Adding core functionalities:

• Implement xValue kValue functions for Gaussian and Exponential light profiles
• Implement drawImage and drawkImage for Gaussian and Exponential light profiles
• Implement Fourier convolution

Infrastructure

• Adding CONTRIBUTING document and related infrastructure #8
• Build a framework to automatically reuse the GalSim test suite #13
• Setup CI system using GitHub actions
• Setup documentation system to keep track of implemented API #17