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/*******************************************************************************
*
* McStas, neutron ray-tracing package
* Copyright 1997-2002, All rights reserved
* Risoe National Laboratory, Roskilde, Denmark
* Institut Laue Langevin, Grenoble, France
*
* Component: Flex_monitor_2D
*
* %I
* Written by: Erik B Knudsen & Peter Willendrup
* Date: Oct '20
* Origin: DTU Physics
*
* Flexible monitor.
*
* %D
* A square 2D single monitor that measures intensity (or something else) as a function of two selectable variables or parameters.
*
* Example: Flex_monitor_2D(nU1=20, nU2=20, filename="Output", ustring1="x", ustring2="y", Umin1=-.1, Umax1=.1, Umin2=-.1, Umax2=.1)
*
* %P
* INPUT PARAMETERS:
*
* Umin1: [] Minimum U1 to detect
* Umax1: [] Maximum U1 to detect
* nU1: [1] Number of U1 channels
* Umin2: [] Minimum U1 to detect
* Umax2: [] Maximum U1 to detect
* nU2: [1] Number of U1 channels
* filename: [string] Name of file in which to store the detector image
* restore_neutron: [1] If set, the monitor does not influence the neutron state
* uid1: [1] Integer index of uservar to be monitored. Overrides ustring1.
* uid2: [1] Integer index of uservar to be monitored. Overrides ustring2.
* ustring1: [string] Name of variable U1 (user or neutron state parameter as a string) to be monitored.
* ustring2: [string] Name of variable U2 (user or neutron state parameter as a string) to be monitored.
* signal: [string] Name of variable to be used as an additive signal to be monitored. Default is intensity.
* nowritefile: [1] Flag to indicate if monitor should not save any data.
*
* CALCULATED PARAMETERS:
*
* %E
*******************************************************************************/
DEFINE COMPONENT Flex_monitor_2D
SETTING PARAMETERS (int nU1=20, int nU2=20, string filename=0,
Umin1, Umax1, uid1=-1, string ustring1="", Umin2, Umax2, uid2=-1, string ustring2="", int restore_neutron=0, string signal="p", int nowritefile=0)
/* Neutron parameters: (x,y,z,vx,vy,vz,t,sx,sy,sz,p) */
DECLARE
%{
DArray2d U_N;
DArray2d U_p;
DArray2d U_p2;
char username1[128];
char username2[128];
char signalname[128];
%}
INITIALIZE
%{
U_N = create_darr2d(nU1,nU2);
U_p = create_darr2d(nU1,nU2);
U_p2 = create_darr2d(nU1,nU2);
if(uid1!=-1){
snprintf(username1,127,"uservar%d",uid1);
}else{
snprintf(username1,127,"%s",ustring1);
}
if(uid2!=-1){
snprintf(username2,127,"uservar%d",uid2);
}else{
snprintf(username2,127,"%s",ustring2);
}
snprintf(signalname,127,"%s",signal);
// Use instance name for monitor output if no input was given
if (!strcmp(filename,"\0")) sprintf(filename,"%s",NAME_CURRENT_COMP);
%}
TRACE
%{
double U1,U2;
int suc1,suc2,suc3;
if(uid1!=-1){
U1 = particle_getuservar_byid(_particle,uid1,&suc1);
}else{
U1 = particle_getvar(_particle,ustring1,&suc1);
}
if(uid2!=-1){
U2 = particle_getuservar_byid(_particle,uid2,&suc2);
}else{
U2 = particle_getvar(_particle,ustring2,&suc2);
}
int i = floor((U1-Umin1)*nU1/(Umax1-Umin1));
int j = floor((U2-Umin2)*nU2/(Umax2-Umin2));
if(!suc1 && i >= 0 && i < nU1)
{
if(!suc2 && j >= 0 && j < nU2)
{
double pp=particle_getvar(_particle,signal,&suc3);
double p2 = pp*pp;
#pragma acc atomic
U_N[i][j] = U_N[i][j] +1;
#pragma acc atomic
U_p[i][j] = U_p[i][j] + pp;
#pragma acc atomic
U_p2[i][j] = U_p2[i][j] + p2;
SCATTER;
}
}
if (restore_neutron) {
RESTORE_NEUTRON(INDEX_CURRENT_COMP, x, y, z, vx, vy, vz, t, sx, sy, sz, p);
}
%}
SAVE
%{
if (!nowritefile) {
DETECTOR_OUT_2D(
"Flex monitor 2D",
username1, username2,
Umin1, Umax1, Umin2, Umax2, nU1, nU2,
&U_N[0][0],&U_p[0][0],&U_p2[0][0],
filename);
}
%}
FINALLY
%{
destroy_darr2d(U_N);
destroy_darr2d(U_p);
destroy_darr2d(U_p2);
%}
MCDISPLAY
%{
%}
END
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