nsmc/contrib, branch unfinished-experiments n-sphere Monte Carlo method http://git.systemreboot.net/nsmc/atom?h=unfinished-experiments 2021-03-19T16:27:31+00:00 Demonstrate cone sampling with rejection sampling too. 2021-03-19T16:27:31+00:00 Arun Isaac 2021-03-19T16:23:48+00:00 urn:sha1:fa2d088d31faef95d7b96d681fbf0b14cd444afa * contrib/cone-vector.py (sample_code): Demonstrate cone sampling with rejection sampling too. Implement rejection sampling based cone sampling. 2021-03-19T16:27:31+00:00 Arun Isaac 2021-03-19T16:20:55+00:00 urn:sha1:e4ca0edf037b924b217bd5c2223e570a8e888ee9 * contrib/cone-vector.py: Import log. (random_planar_angle_pdf, random_vector_on_spherical_cap_pdf): New functions. Factor out random planar angle generation. 2021-03-19T16:16:38+00:00 Arun Isaac 2021-03-19T16:16:38+00:00 urn:sha1:5b8aa0c2cb6f187eba957de9400913b83bbf539a * contrib/cone-vector.py (random_planar_angle_cdf, random_vector_on_disk): New functions. (random_vector_on_spherical_cap): Rename to random_vector_on_spherical_cap_cdf. Call random_planar_angle_cdf and random_vector_on_disk. (sample_code): Call random_vector_on_spherical_cap_cdf instead of random_vector_on_spherical_cap. Put sample code in separate function. 2021-03-15T10:07:05+00:00 Arun Isaac 2021-03-15T10:07:05+00:00 urn:sha1:d3c68431fb8a1eb444d5635faa13fd4ffb0073f1 * contrib/cone-vector.py: Call sample_code when run as a script. (sample_code): New function. Remove unused imports. 2021-03-15T10:00:35+00:00 Arun Isaac 2021-03-15T09:58:22+00:00 urn:sha1:2b89e25cc18cd82df1a3720e7e4739b007f14879 * contrib/cone-vector.py: Don't import zeros from numpy and gamma from scipy.special. Add function docstrings. 2021-03-15T09:57:40+00:00 Arun Isaac 2021-03-15T09:55:48+00:00 urn:sha1:c50fc913662a88995f5e338764dbf4efcfa71f45 * contrib/cone-vector.py (random_vector_on_sphere, planar_angle2solid_angle_fraction, solid_angle_fraction2planar_angle, rotate_from_nth_canonical, random_vector_on_spherical_cap): Add docstrings. Remove space between function name and bracket. 2021-03-15T09:57:40+00:00 Arun Isaac 2021-03-15T09:30:00+00:00 urn:sha1:73cae57f5fab5e92032916c61523ec79427e8335 * contrib/cone-vector.py (random_vector_on_sphere, planar_angle2solid_angle_fraction, solid_angle_fraction2planar_angle, rotate_from_nth_canonical, random_vector_on_spherical_cap): Remove space between function name and bracket. Implement simplified cone sampling algorithm. 2021-03-15T09:57:24+00:00 Arun Isaac 2021-03-15T09:22:03+00:00 urn:sha1:d771e8524094493f8a7c8b25b660b18acf837f92 * contrib/cone-vector.py: Don't import tan. (random_vector_on_spherical_cap): Implement simplified algorithm that directly samples the surface of the sphere instead of sampling a disk and projecting it onto the surface. Vectorize functions. 2021-03-15T09:18:30+00:00 Arun Isaac 2021-03-15T09:17:09+00:00 urn:sha1:d5ab1ba4a4373821bc27a35f2a5f7dcb9e955dd4 * contrib/cone-vector.py: Import where. (planar_angle2solid_angle_fraction, solid_angle_fraction2planar_angle): Vectorize functions. Fix solid_angle_fraction2planar_angle for solid_angle_fraction > 1/2. 2021-03-15T09:13:22+00:00 Arun Isaac 2021-03-15T09:13:22+00:00 urn:sha1:8c08eff9dc4a46c9c0fb41330e45f4d0356ecdcb * contrib/cone-vector.py (solid_angle_fraction2planar_angle): Fix for solid_angle_fraction > 1/2.