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*=======================================================================
* Copyright (C) 1999
* Associated Universities, Inc. Washington DC, USA.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library; if not, write to the Free
* Software Foundation, Inc., 675 Massachusetts Ave, Cambridge,
* MA 02139, USA.
*
* Correspondence concerning AIPS++ should be addressed as follows:
* Internet email: casa-feedback@nrao.edu.
* Postal address: AIPS++ Project Office
* National Radio Astronomy Observatory
* 520 Edgemont Road
* Charlottesville, VA 22903-2475 USA
*
* $Id$
*-----------------------------------------------------------------------
subroutine cgrd1d (ni, li, grid, value, support, sampling, posi,
$ convFunc)
implicit none
integer ni
integer li
integer support, sampling
complex value, grid(ni), nvalue
double precision convFunc(*), norm
double precision posi
integer i, loci
integer offi
offi=nint((dble(nint(posi))-posi)*sampling)
norm=0.0
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)
end do
nvalue=nvalue/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1)=grid(i+li+1)+nvalue*convFunc(loci+1)
end do
return
end
subroutine cgrd2d (ni, nj, li, lj, grid, value, support,
$ sampling, posi, posj, convFunc)
implicit none
integer ni, nj
integer li, lj
integer support, sampling
complex value, grid(ni, nj), nvalue
double precision convFunc(*), norm
double precision posi, posj
integer i, j, loci, locj
integer offi, offj
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
norm=0.0
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)
end do
end do
do j=-support,support
locj=abs(sampling*j+offj)
nvalue=value*convFunc(locj+1)/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1,j+lj+1)=grid(i+li+1,j+lj+1)+
$ nvalue*convFunc(loci+1)
end do
end do
return
end
subroutine cgrd3d (ni, nj, nk, li, lj, lk, grid, value, support,
$ sampling, posi, posj, posk, convFunc)
implicit none
integer ni, nj, nk
integer li, lj, lk
integer support, sampling
complex value, grid(ni, nj, nk), nvalue
double precision convFunc(*), norm
double precision posi, posj, posk
integer i, j, k, loci, locj, lock
integer offi, offj, offk
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
offk=nint((dble(nint(posk))-posk)*sampling)
norm=0.0
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)*
$ convFunc(lock+1)
end do
end do
end do
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
nvalue=value*convFunc(locj+1)*convFunc(lock+1)/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1,j+lj+1,k+lk+1)=grid(i+li+1,j+lj+1,k+lk+1)+
$ value*convFunc(loci+1)
end do
end do
end do
return
end
subroutine cdgrd1d (ni, li, grid, value, support, sampling,
$ posi, convFunc)
implicit none
integer ni
integer li
integer support, sampling
complex value, grid(ni)
double precision convFunc(*), norm
double precision posi
integer i, loci
integer offi
offi=nint((dble(nint(posi))-posi)*sampling)
norm=0.0
value=0.0
do i=-support,support
loci=abs(sampling*i+offi)
value=value+grid(i+li+1)*convFunc(loci+1)
norm=norm+convFunc(loci+1)
end do
value=value/norm
return
end
subroutine cdgrd2d (ni, nj, li, lj, grid, value, support,
$ sampling, posi, posj, convFunc)
implicit none
integer ni, nj
integer li, lj
integer support, sampling
complex value, grid(ni, nj)
double precision convFunc(*), norm
double precision posi, posj
integer i, j, loci, locj
integer offi, offj
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
norm=0.0
value=0.0
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
value=value+
$ grid(i+li+1,j+lj+1)*convFunc(loci+1)*convFunc(locj+1)
norm=norm+convFunc(loci+1)*convFunc(locj+1)
end do
end do
value=value/norm
return
end
subroutine cdgrd3d (ni, nj, nk, li, lj, lk, grid, value,
$ support, sampling, posi, posj, posk, convFunc)
implicit none
integer ni, nj, nk
integer li, lj, lk
integer support, sampling
complex value, grid(ni, nj, nk)
double precision convFunc(*), norm
double precision posi, posj, posk
integer i, j, k, loci, locj, lock
integer offi, offj, offk
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
offk=nint((dble(nint(posk))-posk)*sampling)
norm=0.0
value=0.0
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)*
$ convFunc(lock+1)
value=value+grid(i+li+1,j+lj+1,k+lk+1)*convFunc(loci+1)*
$ convFunc(locj+1)*convFunc(lock+1)
end do
end do
end do
value=value/norm
return
end
subroutine dgrd1d (ni, li, grid, value, support, sampling, posi,
$ convFunc)
implicit none
integer ni
integer li
integer support, sampling
double precision value, grid(ni), nvalue
double precision convFunc(*), norm
double precision posi
integer i, loci
integer offi
offi=nint((dble(nint(posi))-posi)*sampling)
norm=0.0
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)
end do
nvalue=nvalue/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1)=grid(i+li+1)+nvalue*convFunc(loci+1)
end do
return
end
subroutine dgrd2d (ni, nj, li, lj, grid, value, support,
$ sampling, posi, posj, convFunc)
implicit none
integer ni, nj
integer li, lj
integer support, sampling
double precision value, grid(ni, nj), nvalue
double precision convFunc(*), norm
double precision posi, posj
integer i, j, loci, locj
integer offi, offj
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
norm=0.0
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)
end do
end do
do j=-support,support
locj=abs(sampling*j+offj)
nvalue=value*convFunc(locj+1)/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1,j+lj+1)=grid(i+li+1,j+lj+1)+
$ nvalue*convFunc(loci+1)
end do
end do
return
end
subroutine dgrd3d (ni, nj, nk, li, lj, lk, grid, value, support,
$ sampling, posi, posj, posk, convFunc)
implicit none
integer ni, nj, nk
integer li, lj, lk
integer support, sampling
double precision value, grid(ni, nj, nk), nvalue
double precision convFunc(*), norm
double precision posi, posj, posk
integer i, j, k, loci, locj, lock
integer offi, offj, offk
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
offk=nint((dble(nint(posk))-posk)*sampling)
norm=0.0
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)*
$ convFunc(lock+1)
end do
end do
end do
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
nvalue=value*convFunc(locj+1)*convFunc(lock+1)/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1,j+lj+1,k+lk+1)=grid(i+li+1,j+lj+1,k+lk+1)+
$ value*convFunc(loci+1)
end do
end do
end do
return
end
subroutine ddgrd1d (ni, li, grid, value, support, sampling,
$ posi, convFunc)
implicit none
integer ni
integer li
integer support, sampling
double precision value, grid(ni)
double precision convFunc(*), norm
double precision posi
integer i, loci
integer offi
offi=nint((dble(nint(posi))-posi)*sampling)
norm=0.0
value=0.0
do i=-support,support
loci=abs(sampling*i+offi)
value=value+grid(i+li+1)*convFunc(loci+1)
norm=norm+convFunc(loci+1)
end do
value=value/norm
return
end
subroutine ddgrd2d (ni, nj, li, lj, grid, value, support,
$ sampling, posi, posj, convFunc)
implicit none
integer ni, nj
integer li, lj
integer support, sampling
double precision value, grid(ni, nj)
double precision convFunc(*), norm
double precision posi, posj
integer i, j, loci, locj
integer offi, offj
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
norm=0.0
value=0.0
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
value=value+
$ grid(i+li+1,j+lj+1)*convFunc(loci+1)*convFunc(locj+1)
norm=norm+convFunc(loci+1)*convFunc(locj+1)
end do
end do
value=value/norm
return
end
subroutine ddgrd3d (ni, nj, nk, li, lj, lk, grid, value,
$ support, sampling, posi, posj, posk, convFunc)
implicit none
integer ni, nj, nk
integer li, lj, lk
integer support, sampling
double precision value, grid(ni, nj, nk)
double precision convFunc(*), norm
double precision posi, posj, posk
integer i, j, k, loci, locj, lock
integer offi, offj, offk
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
offk=nint((dble(nint(posk))-posk)*sampling)
norm=0.0
value=0.0
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)*
$ convFunc(lock+1)
value=value+grid(i+li+1,j+lj+1,k+lk+1)*convFunc(loci+1)*
$ convFunc(locj+1)*convFunc(lock+1)
end do
end do
end do
value=value/norm
return
end
subroutine fgrd1d (ni, li, grid, value, support, sampling, posi,
$ convFunc)
implicit none
integer ni
integer li
integer support, sampling
real value, grid(ni), nvalue
double precision convFunc(*), norm
double precision posi
integer i, loci
integer offi
offi=nint((dble(nint(posi))-posi)*sampling)
norm=0.0
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)
end do
nvalue=nvalue/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1)=grid(i+li+1)+nvalue*convFunc(loci+1)
end do
return
end
subroutine fgrd2d (ni, nj, li, lj, grid, value, support,
$ sampling, posi, posj, convFunc)
implicit none
integer ni, nj
integer li, lj
integer support, sampling
real value, grid(ni, nj), nvalue
double precision convFunc(*), norm
double precision posi, posj
integer i, j, loci, locj
integer offi, offj
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
norm=0.0
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)
end do
end do
nvalue=value/norm
do j=-support,support
locj=abs(sampling*j+offj)
nvalue=value*convFunc(locj+1)/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1,j+lj+1)=grid(i+li+1,j+lj+1)+
$ nvalue*convFunc(loci+1)
end do
end do
return
end
subroutine fgrd3d (ni, nj, nk, li, lj, lk, grid, value, support,
$ sampling, posi, posj, posk, convFunc)
implicit none
integer ni, nj, nk
integer li, lj, lk
integer support, sampling
real value, grid(ni, nj, nk), nvalue
double precision convFunc(*), norm
double precision posi, posj, posk
integer i, j, k, loci, locj, lock
integer offi, offj, offk
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
offk=nint((dble(nint(posk))-posk)*sampling)
norm=0.0
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)*
$ convFunc(lock+1)
end do
end do
end do
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
nvalue=value*convFunc(locj+1)*convFunc(lock+1)/norm
do i=-support,support
loci=abs(sampling*i+offi)
grid(i+li+1,j+lj+1,k+lk+1)=grid(i+li+1,j+lj+1,k+lk+1)+
$ value*convFunc(loci+1)
end do
end do
end do
return
end
subroutine fdgrd1d (ni, li, grid, value, support, sampling,
$ posi, convFunc)
implicit none
integer ni
integer li
integer support, sampling
real value, grid(ni)
double precision convFunc(*), norm
double precision posi
integer i, loci
integer offi
offi=nint((dble(nint(posi))-posi)*sampling)
norm=0.0
value=0.0
do i=-support,support
loci=abs(sampling*i+offi)
value=value+grid(i+li+1)*convFunc(loci+1)
norm=norm+convFunc(loci+1)
end do
value=value/norm
return
end
subroutine fdgrd2d (ni, nj, li, lj, grid, value, support,
$ sampling, posi, posj, convFunc)
implicit none
integer ni, nj
integer li, lj
integer support, sampling
real value, grid(ni, nj)
double precision convFunc(*), norm
double precision posi, posj
integer i, j, loci, locj
integer offi, offj
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
norm=0.0
value=0.0
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
value=value+
$ grid(i+li+1,j+lj+1)*convFunc(loci+1)*convFunc(locj+1)
norm=norm+convFunc(loci+1)*convFunc(locj+1)
end do
end do
value=value/norm
return
end
subroutine fdgrd3d (ni, nj, nk, li, lj, lk, grid, value,
$ support, sampling, posi, posj, posk, convFunc)
implicit none
integer ni, nj, nk
integer li, lj, lk
integer support, sampling
real value, grid(ni, nj, nk)
double precision convFunc(*), norm
double precision posi, posj, posk
integer i, j, k, loci, locj, lock
integer offi, offj, offk
offi=nint((dble(nint(posi))-posi)*sampling)
offj=nint((dble(nint(posj))-posj)*sampling)
offk=nint((dble(nint(posk))-posk)*sampling)
norm=0.0
value=0.0
do k=-support,support
lock=abs(sampling*k+offk)
do j=-support,support
locj=abs(sampling*j+offj)
do i=-support,support
loci=abs(sampling*i+offi)
norm=norm+convFunc(loci+1)*convFunc(locj+1)*
$ convFunc(lock+1)
value=value+grid(i+li+1,j+lj+1,k+lk+1)*convFunc(loci+1)*
$ convFunc(locj+1)*convFunc(lock+1)
end do
end do
end do
value=value/norm
return
end
|
