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Added properly the routines for the test of the Spherical Harmonics

This commit is contained in:
eginer 2024-04-25 20:00:42 +02:00
parent e9dccd2364
commit c3483df9a1
2 changed files with 227 additions and 210 deletions

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@ -0,0 +1,227 @@
subroutine test_cart
implicit none
BEGIN_DOC
! test for the cartesian --> spherical change of coordinates
!
! simple test such that the polar angle theta ranges in [0,pi]
!
! and the asymuthal angle phi ranges in [0,2pi]
END_DOC
include 'constants.include.F'
double precision :: r(3),theta,phi,r_abs
print*,''
r = 0.d0
r(1) = 1.d0
r(2) = 1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
print*,''
r = 0.d0
r(1) =-1.d0
r(2) = 1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
print*,''
r = 0.d0
r(1) =-1.d0
r(2) =-1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
print*,''
r = 0.d0
r(1) = 1.d0
r(2) =-1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
end
subroutine test_spher_harm
implicit none
BEGIN_DOC
! routine to test the spherical harmonics integration on a sphere with the grid.
!
! We test <Y_l1,m1|Y_l2,m2> = delta_m1,m2 delta_l1,l2
END_DOC
include 'constants.include.F'
integer :: l1,m1,i,l2,m2,lmax
double precision :: r(3),weight,accu_re, accu_im,accu
double precision :: re_ylm_1, im_ylm_1,re_ylm_2, im_ylm_2
l1 = 0
m1 = 0
l2 = 0
m2 = 0
lmax = 5
do l1 = 0,lmax
do m1 = -l1 ,l1
do l2 = 0,lmax
do m2 = -l2 ,l2
accu_re = 0.d0
accu_im = 0.d0
! <l1,m1|l2,m2> = \int dOmega Y_l1,m1^* Y_l2,m2
! = \int dOmega (re_ylm_1 -i im_ylm_1) * (re_ylm_2 +i im_ylm_2)
! = \int dOmega (re_ylm_1*re_ylm_2 + im_ylm_1*im_ylm_2) +i (im_ylm_2*re_ylm_1 - im_ylm_1*re_ylm_2)
accu = 0.d0
do i = 1, n_points_integration_angular
double precision :: theta,phi,r_abs
r(1:3) = angular_quadrature_points(i,1:3)
weight = weights_angular_points(i)
call cartesian_to_spherical(r,theta,phi,r_abs)
if(theta.gt.pi.or.theta.lt.0.d0)then
print*,'pb with theta',theta
print*,r
endif
if(phi.gt.2.d0*pi.or.phi.lt.0.d0)then
print*,'pb with phi',phi/pi
print*,r
endif
call spher_harm_func_r3(r,l1,m1,re_ylm_1, im_ylm_1)
call spher_harm_func_r3(r,l2,m2,re_ylm_2, im_ylm_2)
accu_re += weight * (re_ylm_1*re_ylm_2 + im_ylm_1*im_ylm_2)
accu_im += weight * (im_ylm_2*re_ylm_1 - im_ylm_1*re_ylm_2)
accu += weight
write(33,'(10(F16.10,X))')phi/pi
enddo
! Test for the delta l1,l2 and delta m1,m2
if(l1.ne.l2.or.m1.ne.m2)then
if(dabs(accu_re).gt.1.d-6.or.dabs(accu_im).gt.1.d-6)then
print*,'pb OFF DIAG !!!!! '
print*,'l1,m1,l2,m2',l1,m1,l2,m2
print*,'accu_re = ',accu_re
print*,'accu_im = ',accu_im
endif
endif
if(l1==l2.and.m1==m2)then
if(dabs(accu_re-1.d0).gt.1.d-5.or.dabs(accu_im).gt.1.d-6)then
print*,'pb DIAG !!!!! '
print*,'l1,m1,l2,m2',l1,m1,l2,m2
print*,'accu_re = ',accu_re
print*,'accu_im = ',accu_im
endif
endif
enddo
enddo
enddo
enddo
double precision :: x,dx,xmax,xmin
integer:: nx
nx = 10000
xmin = -5.d0
xmax = 5.d0
dx = (xmax - xmin)/dble(nx)
x = xmin
do i = 1, nx
write(34,*)x,datan(x),dacos(x)
x += dx
enddo
end
subroutine test_brutal_spheric
implicit none
include 'constants.include.F'
BEGIN_DOC
! test for the <Y_l1,m1|Y_l2,m2> = delta_m1,m2 delta_l1,l2 using a two dimentional integration
!
! \int_0^2pi d Phi \int_-1^+1 d(cos(Theta)) Y_l1,m1^*(Theta,Phi) Y_l2,m2(Theta,Phi)
!
!= \int_0^2pi d Phi \int_0^pi dTheta sin(Theta) Y_l1,m1^*(Theta,Phi) Y_l2,m2(Theta,Phi)
!
! Allows to test for the general functions spher_harm_func_m_pos with spher_harm_func_expl
END_DOC
integer :: itheta, iphi,ntheta,nphi
double precision :: theta_min, theta_max, dtheta,theta
double precision :: phi_min, phi_max, dphi,phi
double precision :: accu_re, accu_im,weight
double precision :: re_ylm_1, im_ylm_1 ,re_ylm_2, im_ylm_2,accu
integer :: l1,m1,i,l2,m2,lmax
phi_min = 0.d0
phi_max = 2.D0 * pi
theta_min = 0.d0
theta_max = 1.D0 * pi
ntheta = 1000
nphi = 1000
dphi = (phi_max - phi_min)/dble(nphi)
dtheta = (theta_max - theta_min)/dble(ntheta)
lmax = 3
do l1 = 0,lmax
do m1 = 0 ,l1
do l2 = 0,lmax
do m2 = 0 ,l2
accu_re = 0.d0
accu_im = 0.d0
accu = 0.d0
theta = theta_min
do itheta = 1, ntheta
phi = phi_min
do iphi = 1, nphi
! call spher_harm_func_expl(l1,m1,theta,phi,re_ylm_1, im_ylm_1)
! call spher_harm_func_expl(l2,m2,theta,phi,re_ylm_2, im_ylm_2)
call spher_harm_func_m_pos(l1,m1,theta,phi,re_ylm_1, im_ylm_1)
call spher_harm_func_m_pos(l2,m2,theta,phi,re_ylm_2, im_ylm_2)
weight = dtheta * dphi * dsin(theta)
accu_re += weight * (re_ylm_1*re_ylm_2 + im_ylm_1*im_ylm_2)
accu_im += weight * (im_ylm_2*re_ylm_1 - im_ylm_1*re_ylm_2)
accu += weight
phi += dphi
enddo
theta += dtheta
enddo
print*,'l1,m1,l2,m2',l1,m1,l2,m2
print*,'accu_re = ',accu_re
print*,'accu_im = ',accu_im
print*,'accu = ',accu
if(l1.ne.l2.or.m1.ne.m2)then
if(dabs(accu_re).gt.1.d-6.or.dabs(accu_im).gt.1.d-6)then
print*,'pb OFF DIAG !!!!! '
endif
endif
if(l1==l2.and.m1==m2)then
if(dabs(accu_re-1.d0).gt.1.d-5.or.dabs(accu_im).gt.1.d-6)then
print*,'pb DIAG !!!!! '
endif
endif
enddo
enddo
enddo
enddo
end
subroutine test_assoc_leg_pol
implicit none
BEGIN_DOC
! TODO : Put the documentation of the program here
END_DOC
print *, 'Hello world'
integer :: l1,m1,ngrid,i,l2,m2
l1 = 0
m1 = 0
l2 = 2
m2 = 0
double precision :: x, dx,xmax,accu,xmin
double precision :: plgndr,func_1,func_2,ortho_assoc_gaus_pol
ngrid = 100000
xmax = 1.d0
xmin = -1.d0
dx = (xmax-xmin)/dble(ngrid)
do l2 = 0,10
x = xmin
accu = 0.d0
do i = 1, ngrid
func_1 = plgndr(l1,m1,x)
func_2 = plgndr(l2,m2,x)
write(33,*)x, func_1,func_2
accu += func_1 * func_2 * dx
x += dx
enddo
print*,'l2 = ',l2
print*,'accu = ',accu
print*,ortho_assoc_gaus_pol(l1,m1,l2)
enddo
end

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@ -5,213 +5,3 @@ program spher_harm
! call test_brutal_spheric
end
subroutine test_cart
implicit none
include 'constants.include.F'
double precision :: r(3),theta,phi,r_abs
print*,''
r = 0.d0
r(1) = 1.d0
r(2) = 1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
print*,''
r = 0.d0
r(1) =-1.d0
r(2) = 1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
print*,''
r = 0.d0
r(1) =-1.d0
r(2) =-1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
print*,''
r = 0.d0
r(1) = 1.d0
r(2) =-1.d0
call cartesian_to_spherical(r,theta,phi,r_abs)
print*,r
print*,phi/pi
end
subroutine test_spher_harm
implicit none
include 'constants.include.F'
integer :: l1,m1,i,l2,m2,lmax
double precision :: r(3),weight,accu_re, accu_im,accu
double precision :: re_ylm_1, im_ylm_1,re_ylm_2, im_ylm_2
l1 = 0
m1 = 0
l2 = 0
m2 = 0
lmax = 5
do l1 = 0,lmax
do m1 = -l1 ,l1
do l2 = 0,lmax
do m2 = -l2 ,l2
accu_re = 0.d0
accu_im = 0.d0
! <l1,m1|l2,m2> = \int dOmega Y_l1,m1^* Y_l2,m2
! = \int dOmega (re_ylm_1 -i im_ylm_1) * (re_ylm_2 +i im_ylm_2)
! = \int dOmega (re_ylm_1*re_ylm_2 + im_ylm_1*im_ylm_2) +i (im_ylm_2*re_ylm_1 - im_ylm_1*re_ylm_2)
accu = 0.d0
do i = 1, n_points_integration_angular
double precision :: theta,phi,r_abs
r(1:3) = angular_quadrature_points(i,1:3)
weight = weights_angular_points(i)
call cartesian_to_spherical(r,theta,phi,r_abs)
if(theta.gt.pi.or.theta.lt.0.d0)then
print*,'pb with theta',theta
print*,r
endif
if(phi.gt.2.d0*pi.or.phi.lt.0.d0)then
print*,'pb with phi',phi/pi
print*,r
endif
call spher_harm_func_r3(r,l1,m1,re_ylm_1, im_ylm_1)
call spher_harm_func_r3(r,l2,m2,re_ylm_2, im_ylm_2)
! call spher_harm_func_m_pos(l1,m1,theta,phi,re_ylm_1, im_ylm_1)
! call spher_harm_func_m_pos(l2,m2,theta,phi,re_ylm_2, im_ylm_2)
! call spher_harm_func_expl(l1,m1,theta,phi,re_ylm_1, im_ylm_1)
! call spher_harm_func_expl(l2,m2,theta,phi,re_ylm_2, im_ylm_2)
! call spher_harm_func_expl(l1,m1,theta,phi,re_ylm_1, im_ylm_1)
! call spher_harm_func_expl(l2,m2,theta,phi,re_ylm_2, im_ylm_2)
accu_re += weight * (re_ylm_1*re_ylm_2 + im_ylm_1*im_ylm_2)
accu_im += weight * (im_ylm_2*re_ylm_1 - im_ylm_1*re_ylm_2)
accu += weight
write(33,'(10(F16.10,X))')phi/pi
enddo
if(l1.ne.l2.or.m1.ne.m2)then
if(dabs(accu_re).gt.1.d-6.or.dabs(accu_im).gt.1.d-6)then
print*,'pb OFF DIAG !!!!! '
print*,'l1,m1,l2,m2',l1,m1,l2,m2
print*,'accu_re = ',accu_re
print*,'accu_im = ',accu_im
endif
endif
if(l1==l2.and.m1==m2)then
if(dabs(accu_re-1.d0).gt.1.d-5.or.dabs(accu_im).gt.1.d-6)then
print*,'pb DIAG !!!!! '
print*,'l1,m1,l2,m2',l1,m1,l2,m2
print*,'accu_re = ',accu_re
print*,'accu_im = ',accu_im
endif
endif
enddo
enddo
enddo
enddo
double precision :: x,dx,xmax,xmin
integer:: nx
nx = 10000
xmin = -5.d0
xmax = 5.d0
dx = (xmax - xmin)/dble(nx)
x = xmin
do i = 1, nx
write(34,*)x,datan(x),dacos(x)
x += dx
enddo
end
subroutine test_brutal_spheric
implicit none
include 'constants.include.F'
integer :: itheta, iphi,ntheta,nphi
double precision :: theta_min, theta_max, dtheta,theta
double precision :: phi_min, phi_max, dphi,phi
double precision :: accu_re, accu_im,weight
double precision :: re_ylm_1, im_ylm_1 ,re_ylm_2, im_ylm_2,accu
integer :: l1,m1,i,l2,m2,lmax
phi_min = 0.d0
phi_max = 2.D0 * pi
theta_min = 0.d0
theta_max = 1.D0 * pi
ntheta = 1000
nphi = 1000
dphi = (phi_max - phi_min)/dble(nphi)
dtheta = (theta_max - theta_min)/dble(ntheta)
lmax = 3
do l1 = 0,lmax
do m1 = 0 ,l1
do l2 = 0,lmax
do m2 = 0 ,l2
accu_re = 0.d0
accu_im = 0.d0
accu = 0.d0
theta = theta_min
do itheta = 1, ntheta
phi = phi_min
do iphi = 1, nphi
! call spher_harm_func_expl(l1,m1,theta,phi,re_ylm_1, im_ylm_1)
! call spher_harm_func_expl(l2,m2,theta,phi,re_ylm_2, im_ylm_2)
call spher_harm_func_m_pos(l1,m1,theta,phi,re_ylm_1, im_ylm_1)
call spher_harm_func_m_pos(l2,m2,theta,phi,re_ylm_2, im_ylm_2)
weight = dtheta * dphi * dsin(theta)
accu_re += weight * (re_ylm_1*re_ylm_2 + im_ylm_1*im_ylm_2)
accu_im += weight * (im_ylm_2*re_ylm_1 - im_ylm_1*re_ylm_2)
accu += weight
phi += dphi
enddo
theta += dtheta
enddo
print*,'l1,m1,l2,m2',l1,m1,l2,m2
print*,'accu_re = ',accu_re
print*,'accu_im = ',accu_im
print*,'accu = ',accu
if(l1.ne.l2.or.m1.ne.m2)then
if(dabs(accu_re).gt.1.d-6.or.dabs(accu_im).gt.1.d-6)then
print*,'pb OFF DIAG !!!!! '
endif
endif
if(l1==l2.and.m1==m2)then
if(dabs(accu_re-1.d0).gt.1.d-5.or.dabs(accu_im).gt.1.d-6)then
print*,'pb DIAG !!!!! '
endif
endif
enddo
enddo
enddo
enddo
end
subroutine test_assoc_leg_pol
implicit none
BEGIN_DOC
! TODO : Put the documentation of the program here
END_DOC
print *, 'Hello world'
integer :: l1,m1,ngrid,i,l2,m2
l1 = 0
m1 = 0
l2 = 2
m2 = 0
double precision :: x, dx,xmax,accu,xmin
double precision :: plgndr,func_1,func_2,ortho_assoc_gaus_pol
ngrid = 100000
xmax = 1.d0
xmin = -1.d0
dx = (xmax-xmin)/dble(ngrid)
do l2 = 0,10
x = xmin
accu = 0.d0
do i = 1, ngrid
func_1 = plgndr(l1,m1,x)
func_2 = plgndr(l2,m2,x)
write(33,*)x, func_1,func_2
accu += func_1 * func_2 * dx
x += dx
enddo
print*,'l2 = ',l2
print*,'accu = ',accu
print*,ortho_assoc_gaus_pol(l1,m1,l2)
enddo
end