Re: [ccp4bb] Clipper: Agarwal density gradients and AtomShapeFn::rho_grad

2007-11-13 Thread Kevin Cowtan
OK, that's a good question. Unfortunately the answer is hard, otherwise I would have done it already. The a[] and b[] coeffs are the Gaussian coefficients used for calculating an atomic shape function in reciprocal space, i.e. for use in a structure factor calculation. The aw[] and bw[]

[ccp4bb] Clipper: Agarwal density gradients and AtomShapeFn::rho_grad

2007-11-12 Thread Athanasios Dousis
Hello all, I have the latest Clipper libraries (v2.0), and I'd like to calculate the Agarwal density gradients for anisotropic atomic displacement parameters. Unfortunately, the method clipper::AtomShapeFn::rho_grad(...) only works for the isotropic ADP's. Is there code available for the