Update the direction of diffuse streaking

[nksauter]

Per @mewall update cctbx_project so the diffuse anisotropy matches that given in the Wall paper. Manuscript states: In this case, streaked diffuse features were produced by multiplying γ by an anisotropy factor along the a–b and c unit cell directions in direct space (leaving a+b alone), and multiplying σ^2 by the same anisotropy factor along the a–b direction (leaving a+b and c alone). The Laue symmetry was then applied, leading to streaks along both the a*–b* and a*+b* directions in reciprocal space.

[mewall]

@nksauter see cctbx_project PR#866

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________________________________ From: nksauter ***@***.***> Sent: Wednesday, June 7, 2023 9:43:29 AM To: dermen/sim_erice Cc: Wall, Michael E; Assign Subject: [EXTERNAL] [dermen/sim_erice] Update the direction of diffuse streaking (Issue #57) Per @mewall<https://urldefense.com/v3/__https://github.com/mewall__;!!Bt8fGhp8LhKGRg!ABJ-tljx4eVrrLy3e2YVyRRZjQFyO-RJZ0RgefgZLFnSmw0Qc9ek9pyYB4feKKkG_SLPMeJNTGW5vOP68buhiDeo$> update cctbx_project so the diffuse anisotropy matches that given in the Wall paper. Manuscript states: In this case, streaked diffuse features were produced by multiplying γ by an anisotropy factor along the a–b and c unit cell directions in direct space (leaving a+b alone), and multiplying σ^2 by the same anisotropy factor along the a–b direction (leaving a+b and c alone). The Laue symmetry was then applied, leading to streaks along both the a*–b* and a*+b* directions in reciprocal space. — Reply to this email directly, view it on GitHub<https://urldefense.com/v3/__https://github.com/dermen/sim_erice/issues/57__;!!Bt8fGhp8LhKGRg!ABJ-tljx4eVrrLy3e2YVyRRZjQFyO-RJZ0RgefgZLFnSmw0Qc9ek9pyYB4feKKkG_SLPMeJNTGW5vOP68WB1HhaD$>, or unsubscribe<https://urldefense.com/v3/__https://github.com/notifications/unsubscribe-auth/AA67VEJYEZ52S4JSIZCMNQTXKCOSDANCNFSM6AAAAAAY6CDRXM__;!!Bt8fGhp8LhKGRg!ABJ-tljx4eVrrLy3e2YVyRRZjQFyO-RJZ0RgefgZLFnSmw0Qc9ek9pyYB4feKKkG_SLPMeJNTGW5vOP68cKzRpA_$>. You are receiving this because you were assigned.Message ID: ***@***.***>