void gen_bulge(int nptcl, int myseed, float *buffer, int verbose)
{
int i, j, k, nobj=10000;
int seed= -123;
int icofm=1;
float q=0.9, rtrunc=5.0;
float rhoran, massapp;
float x, y, z, vx, vy, v, v2, R, vmax, vmax2;
float phi, cph, sph, cth, sth, vR, vp, vz;
float E, Lz, rad, rad2;
float f0, frand, fmax, psi;
float t, mass;
float dr;
float u1, v1, u1max, v1max;
float xcm, ycm, zcm, vxcm, vycm, vzcm;
float zip = 0.0, psicut;
float rhomax=0.15, rhomin, rhotst;
float rhomax1;
float stream=0.5;
float bulgedens_(), pot_(), dfbulge_();
float ran1();
char harmfile[80];
float fcut, fac, ebh, psic_bh;
float dfmax, emax, psibh;
float b, c, d, int_const, sig2, aeff;
float v02, vb2, coef1, coef2;
float arg;
float psi_n, psic_bulge_n;
int itest;
if (verbose)
fprintf(stderr,"The Bulge\n");
(void) strcpy(harmfile,"dbh.dat");
stream = 0.5;
nobj = nptcl;
seed = myseed;
icofm = 1;
mysrand(myseed);
if (nobj <= 0)
{
fquery("Enter streaming fraction",&stream);
iquery("Enter the number of particles",&nobj);
iquery("Enter negative integer seed",&seed);
iquery("Center particles (0=no, 1=yes)",&icofm);
cquery("Enter harmonics file",harmfile);
}
readmassrad(); /* reads in mass and truncation radius of components */
readharmfile_(harmfile,&gparam,&cparam,&bparam,&flags);
itest = flags.ibulgeflag;
if (itest == 0) {return 0;}
readdenspsibulge_();
c = gparam.c; v0 = gparam.v0; a = gparam.a;
abulge = gparam.abulge;
cbulge = gparam.cbulge; v0bulge=gparam.v0bulge;
psi0 = gparam.psi0; bulgeconst = gparam.bulgeconst;
psic_bulge = cparam.psic_bulge;
psic_halo=cparam.psic_halo;
bhmass = bparam.bhmass;
rtrunc = bulgeedge;
mass = bulgemass/nobj;
sig2 = -psi0;
u1max = rtrunc;
v1max = 0.5*M_PI;
psic_bulge_n = -psic_bulge;
fcut = dfbulge_(&psic_bulge_n);
dfmaximumbulge_(&emax,&dfmax);
r = (phase *) calloc(nobj,sizeof(phase));
if(bhmass != 0 ) {
psic_bh = bhmass/rtrunc;
effectivescalelength_(&aeff);
d = bhmass/aeff;
int_const = d/(1-psic_bulge_n/sig2)-psic_bh;
} else {
psic_bh = 0.;
d = 0.;
int_const = 0.;
}
/* Find maximum of rho*r^2 */
dr = rtrunc/100;
rhomax1 = 0.0;
for(i=0; i<1000; i++) {
float z, rcyl, rhocur;
rcyl = i*dr;
z = 0;
rhocur = bulgedens_(&rcyl,&z);
/*
fprintf(stdout,"%g %g %g\n",i*dr,rhocur,pot_(&rcyl,&z));
*/
rhocur *= (rcyl*rcyl);
if( rhocur > rhomax1 )
rhomax1 = rhocur;
}
if (verbose)
fprintf(stderr,"rhomax1 = %g\n",rhomax1);
rhomax = 1.5*rhomax1;
rhomin = 1.0e-10*rhomax; /* define density contour cutoff */
if (verbose)
fprintf(stderr,"Calculating bulge particles positions and velocities\n");
for(i=0; i<nobj;) {
u1 = u1max*ran1(&seed);
v1 = 2.0*v1max*(ran1(&seed) - 0.5);
R = u1;
z = R*tan(v1);
rhotst = bulgedens_(&R,&z);
rhotst = rhotst*(R*R + z*z);
j++;
if( rhotst < rhomin )
continue;
rhoran = (rhomax - rhomin)*ran1(&seed);
if( rhoran > rhotst )
continue;
phi = 2.0*M_PI*ran1(&seed);
x = R*cos(phi);
y = R*sin(phi);
psi = pot_(&R,&z);
psi_n = -psi;
psibh = bhmass/sqrt(R*R+z*z);
vmax2 = 2.0*(psi_n + psibh - psic_bulge_n - psic_bh);
vmax = sqrt(vmax2);
if( psi_n > emax ) {
fmax = dfmax;
}
else {
dfcorrectionbulge_(&psi_n,&fac);
fmax = (dfbulge_(&psi_n)-fcut)/fac;
}
f0 = 0.0; frand = 1.0; /* dummy starters */
j = 0;
while( frand > f0 ) {
/* select a random speed < the escape speed */
v2 = 1.1*vmax2;
while( v2 > vmax2 ) {
vx = 2*vmax*(ran1(&seed) - 0.5);
vy = 2*vmax*(ran1(&seed) - 0.5);
vz = 2*vmax*(ran1(&seed) - 0.5);
v2 = vx*vx + vy*vy + vz*vz;
}
ebh = psi_n + psibh - 0.5*v2;
b = sig2 + ebh + int_const;
c = sig2 - ebh - int_const;
E = 0.5*(b-sqrt(c*c+4.*d));
dfcorrectionbulge_(&E,&fac);
f0 = (dfbulge_(&E)-fcut)/fac;
frand = fmax*ran1(&seed);
j++;
}
/* Streaming of the bulge */
vR = (vx*x + vy*y)/R;
vp = (-vx*y + vy*x)/R;
if( ran1(&seed) < stream )
vp = fabs(vp);
else
vp = -fabs(vp);
vx = (vR*x - vp*y)/R;
vy = (vR*y + vp*x)/R;
/* sanity check */
if (isnan(x)) continue;
if (isnan(y)) continue;
if (isnan(z)) continue;
if (isnan(vx)) continue;
if (isnan(vy)) continue;
if (isnan(vz)) continue;
const float RMAX = 200;
const float VMAX = 10;
if (abs(x) > RMAX) continue;
if (abs(y) > RMAX) continue;
if (abs(z) > RMAX) continue;
if (abs(vx) > VMAX) continue;
if (abs(vy) > VMAX) continue;
if (abs(vz) > VMAX) continue;
r[i].x = (float) x;
r[i].y = (float) y;
r[i].z = (float) z;
r[i].vx = (float)vx;
r[i].vy = (float)vy;
r[i].vz = (float)vz;
i++;
if (verbose)
if( i % 1000 == 0 ) fprintf(stderr,".");
}
if (verbose)
fprintf(stderr,"\n");
if( icofm ) {
xcm = ycm =zcm = vxcm =vycm =vzcm = 0;
for(i=0; i<nobj; i++) {
xcm += r[i].x;
ycm += r[i].y;
zcm += r[i].z;
vxcm += r[i].vx;
vycm += r[i].vy;
vzcm += r[i].vz;
}
xcm /= nobj; ycm /=nobj; zcm /= nobj;
vxcm /= nobj; vycm /=nobj; vzcm /= nobj;
for(i=0; i<nobj; i++) {
r[i].x -= xcm;
r[i].y -= ycm;
r[i].z -= zcm;
r[i].vx -= vxcm;
r[i].vy -= vycm;
r[i].vz -= vzcm;
}
}
if (buffer == NULL)
{
#ifdef ASCII
t = 0.0;
fprintf(stdout,"%d\n",nobj);
for(i=0; i<nobj; i++) {
fprintf(stdout,"% 15.7e % 15.7e % 15.7e % 15.7e % 15.7e % 15.7e % 15.7e\n", mass, r[i].x, r[i].y, r[i].z, r[i].vx, r[i].vy, r[i].vz);
}
#else
for(i=0; i<nobj; i++) {
fwrite(&mass,sizeof(float),1,stdout);
fwrite(r+i,sizeof(phase),1,stdout);
}
#endif
}
else
{
const int min_bulge = 100000000;
const int max_bulge = 200000000;
int NEL = 8;
int i,pc;
for (i = 0, pc= 0; i < nobj; i++, pc += NEL)
{
*((int*)&buffer[pc]) = min_bulge + (i%(max_bulge-min_bulge));
buffer[pc+1] = mass;
buffer[pc+2] = r[i].x;
buffer[pc+3] = r[i].y;
buffer[pc+4] = r[i].z;
buffer[pc+5] = r[i].vx;
buffer[pc+6] = r[i].vy;
buffer[pc+7] = r[i].vz;
}
}
}
// import old diseqc configuration into tree
bool convert_diseqc_db(void)
{
MSqlQuery cquery(MSqlQuery::InitCon());
cquery.prepare(
"SELECT cardid, dvb_diseqc_type "
"FROM capturecard"
"WHERE dvb_diseqc_type IS NOT NULL AND "
" diseqcid IS NULL");
// iterate through cards
if (!cquery.exec())
return false;
MSqlQuery iquery(MSqlQuery::InitCon());
iquery.prepare(
"SELECT cardinputid, diseqc_port, diseqc_pos, "
" lnb_lof_switch, lnb_lof_hi, lnb_lof_lo "
"FROM cardinput "
"WHERE cardinput.cardid = :CARDID");
while (cquery.next())
{
uint cardid = cquery.value(0).toUInt();
OLD_DISEQC_TYPES type = (OLD_DISEQC_TYPES) cquery.value(1).toUInt();
DiSEqCDevTree tree;
DiSEqCDevDevice *root = NULL;
uint add_lnbs = 0;
DiSEqCDevLNB::dvbdev_lnb_t lnb_type =
DiSEqCDevLNB::kTypeVoltageAndToneControl;
// create root of tree
switch (type)
{
case DISEQC_SINGLE:
{
// single LNB
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeLNB);
break;
}
case DISEQC_MINI_2:
{
// tone switch + 2 LNBs
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeSwitch);
DiSEqCDevSwitch *sw = dynamic_cast<DiSEqCDevSwitch*>(root);
if (sw)
{
sw->SetType(DiSEqCDevSwitch::kTypeTone);
sw->SetNumPorts(2);
add_lnbs = 2;
}
break;
}
case DISEQC_SWITCH_2_1_0:
case DISEQC_SWITCH_2_1_1:
{
// 2 port diseqc + 2 LNBs
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeSwitch);
DiSEqCDevSwitch *sw = dynamic_cast<DiSEqCDevSwitch*>(root);
if (sw)
{
sw->SetType(DiSEqCDevSwitch::kTypeDiSEqCCommitted);
sw->SetAddress(0x10);
sw->SetNumPorts(2);
add_lnbs = 2;
}
break;
}
case DISEQC_SWITCH_4_1_0:
case DISEQC_SWITCH_4_1_1:
{
// 4 port diseqc + 4 LNBs
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeSwitch);
DiSEqCDevSwitch *sw = dynamic_cast<DiSEqCDevSwitch*>(root);
if (sw)
{
sw->SetType(DiSEqCDevSwitch::kTypeDiSEqCCommitted);
sw->SetAddress(0x10);
sw->SetNumPorts(4);
add_lnbs = 4;
}
break;
}
case DISEQC_POSITIONER_1_2:
{
// non-usals positioner + LNB
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeRotor);
DiSEqCDevRotor *rotor = dynamic_cast<DiSEqCDevRotor*>(root);
if (rotor)
{
rotor->SetType(DiSEqCDevRotor::kTypeDiSEqC_1_2);
add_lnbs = 1;
}
break;
}
case DISEQC_POSITIONER_X:
{
// usals positioner + LNB (diseqc_pos)
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeRotor);
DiSEqCDevRotor *rotor = dynamic_cast<DiSEqCDevRotor*>(root);
if (rotor)
{
rotor->SetType(DiSEqCDevRotor::kTypeDiSEqC_1_3);
add_lnbs = 1;
}
break;
}
case DISEQC_POSITIONER_1_2_SWITCH_2:
{
// 10 port uncommitted switch + 10 LNBs
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeSwitch);
DiSEqCDevSwitch *sw = dynamic_cast<DiSEqCDevSwitch*>(root);
if (sw)
{
sw->SetType(DiSEqCDevSwitch::kTypeDiSEqCUncommitted);
sw->SetNumPorts(10);
add_lnbs = 10;
}
break;
}
case DISEQC_SW21:
{
// legacy SW21 + 2 fixed lnbs
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeSwitch);
DiSEqCDevSwitch *sw = dynamic_cast<DiSEqCDevSwitch*>(root);
if (sw)
{
sw->SetType(DiSEqCDevSwitch::kTypeLegacySW21);
sw->SetNumPorts(2);
add_lnbs = 2;
lnb_type = DiSEqCDevLNB::kTypeFixed;
}
break;
}
case DISEQC_SW64:
{
// legacy SW64 + 3 fixed lnbs
root = DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeSwitch);
DiSEqCDevSwitch *sw = dynamic_cast<DiSEqCDevSwitch*>(root);
if (sw)
{
sw->SetType(DiSEqCDevSwitch::kTypeLegacySW64);
sw->SetNumPorts(3);
add_lnbs = 3;
lnb_type = DiSEqCDevLNB::kTypeFixed;
}
break;
}
default:
{
LOG(VB_GENERAL, LOG_ERR, "Unknown DiSEqC device type " +
QString("%1 ignoring card %2").arg(type).arg(cardid));
break;
}
}
if (!root)
continue;
tree.SetRoot(root);
// create LNBs
for (uint i = 0; i < add_lnbs; i++)
{
DiSEqCDevLNB *lnb = dynamic_cast<DiSEqCDevLNB*>
(DiSEqCDevDevice::CreateByType(
tree, DiSEqCDevDevice::kTypeLNB));
if (lnb)
{
lnb->SetType(lnb_type);
lnb->SetDescription(QString("LNB #%1").arg(i+1));
if (!root->SetChild(i, lnb))
delete lnb;
}
}
// save the tree to get real device ids
tree.Store(cardid);
// iterate inputs
DiSEqCDevSettings set;
iquery.bindValue(":CARDID", cardid);
if (!iquery.exec())
return false;
while (iquery.next())
{
uint inputid = iquery.value(0).toUInt();
uint port = iquery.value(1).toUInt();
double pos = iquery.value(2).toDouble();
DiSEqCDevLNB *lnb = NULL;
// configure LNB and settings
switch (type)
{
case DISEQC_SINGLE:
lnb = dynamic_cast<DiSEqCDevLNB*>(root);
break;
case DISEQC_MINI_2:
case DISEQC_SWITCH_2_1_0:
case DISEQC_SWITCH_2_1_1:
case DISEQC_SWITCH_4_1_0:
case DISEQC_SWITCH_4_1_1:
case DISEQC_SW21:
case DISEQC_SW64:
case DISEQC_POSITIONER_1_2_SWITCH_2:
lnb = dynamic_cast<DiSEqCDevLNB*>(root->GetChild(port));
set.SetValue(root->GetDeviceID(), port);
break;
case DISEQC_POSITIONER_1_2:
case DISEQC_POSITIONER_X:
lnb = dynamic_cast<DiSEqCDevLNB*>(root->GetChild(0));
set.SetValue(root->GetDeviceID(), pos);
break;
default:
break;
}
// configure lnb
if (lnb)
{
lnb->SetLOFSwitch(iquery.value(3).toUInt());
lnb->SetLOFHigh(iquery.value(4).toUInt());
lnb->SetLOFLow(iquery.value(5).toUInt());
}
// save settings
set.Store(inputid);
}
// save any LNB changes
tree.Store(cardid);
// invalidate cached devices
DiSEqCDev trees;
trees.InvalidateTrees();
}
return true;
}
static unsigned long Evaluate_Expression(struct expValueTable_data *vtable_data)
{
struct header_complex_index *hcindex;
struct expObjectTable_data *objstorage, *objfound;
struct expValueTable_data *const valstorage = vtable_data;
const char *expression;
char *result, *resultbak;
char *temp, *tempbak;
int i = 0, j, l;
unsigned long result_u_long = 0;
static int level;
temp = malloc(100);
result = malloc(100);
tempbak = temp;
memset(result, 0, 100);
*result = '\0';
resultbak = result;
level++;
if (level > 1) {
snmp_log(LOG_ERR, "%s: detected recursion\n", __func__);
goto out;
}
expression = vtable_data->expression_data->expExpression;
DEBUGMSGTL(("expValueTable", "%s(%s.%s): evaluating %s\n", __func__,
valstorage->expExpressionOwner, valstorage->expExpressionName,
expression));
while (*expression != '\0') {
if (*expression == '$') {
objfound = NULL;
i++;
for (j = 1; j < 100; j++) {
if ((*(expression + j) == '+') ||
(*(expression + j) == '-') ||
(*(expression + j) == '*') ||
(*(expression + j) == '/') ||
(*(expression + j) == '(') ||
(*(expression + j) == ')') ||
*(expression + j) == '\0') {
break;
}
}
sprintf(temp, "%.*s", j - 1, expression + 1);
l = atoi(temp);
expression = expression + j;
/*
* here use snmpget to get value
*/
for (hcindex = expObjectTableStorage; hcindex != NULL;
hcindex = hcindex->next) {
objstorage = (struct expObjectTable_data *) hcindex->data;
if (!strcmp
(objstorage->expExpressionOwner,
valstorage->expExpressionOwner)
&& (objstorage->expExpressionOwnerLen ==
valstorage->expExpressionOwnerLen)
&& !strcmp(objstorage->expExpressionName,
valstorage->expExpressionName)
&& (objstorage->expExpressionNameLen ==
valstorage->expExpressionNameLen)
&& (l == objstorage->expObjectIndex)) {
objfound = objstorage;
break;
}
}
if (!objfound) {
snmp_log(LOG_ERR, "%s: lookup of expression %s.%s failed\n",
__func__, valstorage->expExpressionOwner,
valstorage->expExpressionName);
goto out;
}
DEBUGMSGTL(("expValueTable", "%s: Found OID ", __func__));
DEBUGMSGOID(("expValueTable", objfound->expObjectID,
objfound->expObjectIDLen));
DEBUGMSG(("expValueTable", "%s\n",
objfound->expObjectIDWildcard ==
EXPOBJCETIDWILDCARD_TRUE ? "(wildcard)" : ""));
oid anOID[MAX_OID_LEN];
size_t anOID_len;
memcpy(anOID, objfound->expObjectID,
objfound->expObjectIDLen * sizeof(oid));
anOID_len = objfound->expObjectIDLen;
if (objfound->expObjectIDWildcard == EXPOBJCETIDWILDCARD_TRUE) {
anOID_len =
anOID_len + valstorage->expValueInstanceLen - 2;
memcpy(anOID + objfound->expObjectIDLen,
valstorage->expValueInstance + 2,
(valstorage->expValueInstanceLen -
2) * sizeof(oid));
}
struct variable_list *vars;
int rc;
rc = iquery(&vars,
(char *)vtable_data->expression_data->pdu_community,
vtable_data->expression_data->pdu_version,
anOID, anOID_len);
if (rc != SNMP_ERR_NOERROR)
snmp_log(LOG_ERR, "Error in packet: %s\n", snmp_errstring(rc));
sprintf(result, "%lu", rc == SNMP_ERR_NOERROR ?
*(vars->val.integer) : 0);
result += strlen(result);
} else {
*result++ = *expression++;
}
}
result_u_long = get_result(resultbak);
DEBUGMSGTL(("expValueTable", "%s(%s.%s): evaluated %s into %ld\n", __func__,
valstorage->expExpressionOwner, valstorage->expExpressionName,
resultbak, result_u_long));
out:
free(tempbak);
free(resultbak);
level--;
return result_u_long;
}
static void build_valuetable(void)
{
struct expExpressionTable_data *expstorage;
struct expObjectTable_data *objstorage, *objfound = NULL;
struct header_complex_index *hcindex, *object_hcindex;
const char *expression;
oid *index;
int i = 0, j, l;
DEBUGMSGTL(("expValueTable", "building valuetable... \n"));
for (hcindex = expExpressionTableStorage; hcindex != NULL;
hcindex = hcindex->next) {
expstorage = (struct expExpressionTable_data *) hcindex->data;
if (expstorage->expExpressionEntryStatus == RS_ACTIVE) {
expression = expstorage->expExpression;
while (*expression != '\0') {
if (*expression == '$') {
i++;
for (j = 1; j < 100; j++) {
if ((*(expression + j) == '+') ||
(*(expression + j) == '-') ||
(*(expression + j) == '*') ||
(*(expression + j) == '/') ||
(*(expression + j) == '(') ||
(*(expression + j) == ')') ||
*(expression + j) == '\0') {
break;
}
}
{
char temp[100];
sprintf(temp, "%.*s", j - 1, expression + 1);
l = atoi(temp);
}
for (object_hcindex = expObjectTableStorage;
object_hcindex != NULL;
object_hcindex = object_hcindex->next) {
objstorage =
(struct expObjectTable_data *) object_hcindex->
data;
if (!strcmp
(objstorage->expExpressionOwner,
expstorage->expExpressionOwner)
&& (objstorage->expExpressionOwnerLen ==
expstorage->expExpressionOwnerLen)
&& !strcmp(objstorage->expExpressionName,
expstorage->expExpressionName)
&& (objstorage->expExpressionNameLen ==
expstorage->expExpressionNameLen)
&& (l == objstorage->expObjectIndex)) {
if (objfound == NULL) {
objfound = objstorage;
}
if (objstorage->expObjectIDWildcard ==
EXPOBJCETIDWILDCARD_TRUE)
objfound = objstorage;
}
}
expression = expression + j;
} else {
expression++;
}
};
}
if (!objfound) {
continue;
}
if (objfound->expObjectIDWildcard == EXPOBJCETIDWILDCARD_FALSE) {
index = calloc(1, MAX_OID_LEN);
*index = 0;
*(index + 1) = 0;
*(index + 2) = 0;
expValueTable_set(expstorage, objfound->expExpressionOwner,
objfound->expExpressionOwnerLen,
objfound->expExpressionName,
objfound->expExpressionNameLen, index, 3);
} else {
oid *targetOID = objfound->expObjectID;
size_t taggetOID_len = objfound->expObjectIDLen;
oid *next_OID;
size_t next_OID_len;
struct variable_list *vars;
int rc;
next_OID = targetOID;
next_OID_len = taggetOID_len;
do {
index = calloc(1, MAX_OID_LEN);
rc = iquery(&vars, (char *)expstorage->pdu_community,
expstorage->pdu_version, next_OID, next_OID_len);
if (rc == SNMP_ERR_NOERROR) {
if (((vars->type >= SNMP_NOSUCHOBJECT &&
vars->type <= SNMP_ENDOFMIBVIEW)
|| snmp_oid_compare(targetOID, taggetOID_len,
vars->name,
taggetOID_len) != 0)) {
break;
}
/* add to expValueTable */
*index = 0;
*(index + 1) = 0;
memcpy(index + 2, vars->name + taggetOID_len,
(vars->name_length - taggetOID_len) * sizeof(oid));
expValueTable_set(expstorage,
objfound->expExpressionOwner,
objfound->expExpressionOwnerLen,
objfound->expExpressionName,
objfound->expExpressionNameLen,
index,
vars->name_length -
taggetOID_len + 2);
next_OID = vars->name;
next_OID_len = vars->name_length;
} else {
snmp_log(LOG_ERR, "Error in packet: %s\n",
snmp_errstring(rc));
}
} while (TRUE);
}
}
}
void gen_disk(int nptcl, int myseed, float *buffer, int verbose)
{
dotalk = verbose;
int i, j, k, nobj=10000;
int seed= -123;
int icofm=1;
float q=0.9, rtrunc=5.0;
float rhoran, massapp;
float x, y, z, vx, vy, v, v2, R, vmax, vmax2;
float phi, cph, sph, cth, sth, vR, vp, vz;
float E, Lz, rad, rad2;
float f0, frand, fmax, fmax1, vphimax1, psi, fnorm;
float Fdisk();
float ran1();
float invu();
float dr, rhomax1;
float t, mass;
float u1, v1, u1max, v1max;
float xcm, ycm, zcm, vxcm, vycm, vzcm;
float zip = 0.0, psi0;
float rhomax=0.15, rhomin, rhotst;
float rhoguess, zcon;
float stream=0.5;
float con, outdisk, drtrunc;
float omega, kappa;
float dv, v0;
float broadcon=1.0;
float vfacR, vfacz;
float f1;
float gr, gp, gz, g2;
float vsigmax, vmean, vsig2;
float gasdev();
float diskdensf_(), sigr2_(), sigz2_();
float FindMax(), FindMax1(), Fmax();
float simpson(), massring();
float velocityfactors_();
// FILE *rhoout;
// FILE *errfile;
char harmfile[80];
// errfile = fopen("errmsg.dat","w");
if(verbose)
fprintf(stderr,"The Disk\n");
strcpy(harmfile,"dbh.dat");
nobj = nptcl;
seed = myseed;
mysrand(myseed);
icofm = 1;
if (nobj <= 0)
{
iquery("Enter the number of particles",&nobj);
iquery("Enter negative integer seed",&seed);
iquery("Center the simulation (0=no,1=yes)",&icofm);
cquery("Enter harmonics file",harmfile);
}
r = (phase *) calloc(nobj,sizeof(phase));
readdiskdf_(harmfile,&gparam);
mdisk = gparam.mdisk; rdisk = gparam.rdisk; zdisk = gparam.zdisk;
outdisk = gparam.outdisk; drtrunc = gparam.drtrunc;
rd = 1.2*rdisk;
zd = 1.2*zdisk;
rtrunc = (outdisk + 2.0*drtrunc);
diskmass = 4.0*M_PI*simpson(massring,0.0,rtrunc,128);
mass = diskmass/nobj;
dr = rtrunc/100.;
rhomax = 0.0;
// rhoout = fopen("rhotst.dat","w");
for(i=0; i<100; i++) {
R = i*dr;
z = 0.0;
rhoguess = exp(-R/rd);
rhotst = diskdensf_(&R,&z);
rhotst /= rhoguess;
if( rhotst > rhomax ) rhomax = rhotst;
// fprintf(rhoout,"%g %g\n",R, rhotst);
}
rhomin = 0.0;
rhomax *=1.2;
#if 0
{
FILE *disksig;
float rad, vsigR, vsigp;;
disksig = fopen("disksig.dat","w");
for(rad=0.1; rad<30.0; rad+=0.1) {
omekap_(&rad,&omega,&kappa);
vsigR = sqrt(sigr2_(&rad));
vsigp = kappa/(2.0*omega)*vsigR;
fprintf(disksig,"%g %g %g %g %g\n",rad,vsigp,vsigR,omega,kappa);
}
fclose(disksig);
}
#endif
/*
tstFdisk();
*/
if (verbose)
fprintf(stderr,"Calculating disk positions and velocities\n");
vmean = 0; vsig2 = 0;
for(i=0, j=0, k=0; i<nobj;) {
u1 = -ran1(&seed);
v1 = 2.0*(ran1(&seed) - 0.5);
R = rd*invu(u1);
z = zd*atanh(v1);
zcon = cosh(z/zd);
rhoguess = exp(-R/rd)/(zcon*zcon);
/* Guess at the approximate functional form of the density */
rhotst = diskdensf_(&R,&z);
rhotst /= rhoguess;
k++;
if( rhotst < rhomin )
continue;
rhoran = (rhomax - rhomin)*ran1(&seed);
if( rhoran > rhotst )
continue;
phi = 2.0*M_PI*ran1(&seed);
x = R*cos(phi);
y = R*sin(phi);
omekap_(&R, &omega, &kappa);
vphimax = omega*R;
vsigR = sqrt(sigr2_(&R));
vsigp = kappa/(2.0*omega)*vsigR;
vsigz = sqrt(sigz2_(&R));
vsigmax = vsigR;
if( vsigp > vsigmax ) vsigmax = vsigp;
if( vsigz > vsigmax ) vsigmax = vsigz;
fmax = 1.1*FindMax(R,z,&vphimax);
/*
fmax1 = 1.1*FindMax1(R,z,&vphimax1);
fprintf(stderr,"fmax %g fmax1 %g vphimax %g vphimax1 %g\n",
fmax, fmax1, vphimax, vphimax1);
*/
f0 = 0.0; frand = 1.0; /* dummy starters */
while( frand > f0 ) {
/*
g2 = 999.;
while( g2 > 1.0) {
gr = 2.*(ran1(&seed) - 0.5);
gp = 2.*(ran1(&seed) - 0.5);
gz = 2.*(ran1(&seed) - 0.5);
g2 = (gr*gr + gp*gp + gz*gz);
}
*/
gr = 6.0*(ran1(&seed) - 0.5)*vsigR;
gp = 6.0*(ran1(&seed) - 0.5)*vsigp;
gz = 6.0*(ran1(&seed) - 0.5)*vsigz;
/*
gp = (vphimax + 3.0*vsigp)*ran1(&seed) - vphimax;
*/
/*
gr = 3.0*vsigmax;
gp = 3.0*vsigmax;
gz = 3.0*vsigmax;
*/
vR = gr;
vp = vphimax + gp;
vz = gz;
f0 = Fdisk(vR, vp, vz, R, z);
frand = fmax*ran1(&seed);
#if 0
if( f0 > fmax ) {
float vpmax;
fprintf(errfile,"f0 > fmax at R=%g z=%g\nvr=%g vp=%g, vz=%g vphimax=%g f0=%g, fmax=%g\n",
R,z,
vR*broadcon/vsigR,
(vp - vphimax)*broadcon/vsigp,
vz*broadcon/vsigz, vphimax, f0, fmax);
fflush(errfile);
}
#endif
j++;
}
velocityfactors_(&R, &z, &vfacR, &vfacz);
vphimax = vp - gp;
vphimax *= vfacR;
vp = vphimax + gp;
vz *= vfacz;
/*
fprintf(stdout,"%g %g\n",vp,frand);
*/
cph = x/R; sph = y/R;
vx = vR*cph - vp*sph;
vy = vR*sph + vp*cph;
/* vz stays the same */
/* sanity check */
if (isnan(x)) continue;
if (isnan(y)) continue;
if (isnan(z)) continue;
if (isnan(vx)) continue;
if (isnan(vy)) continue;
if (isnan(vz)) continue;
const float RMAX = 200;
const float VMAX = 10;
if (abs(x) > RMAX) continue;
if (abs(y) > RMAX) continue;
if (abs(z) > RMAX) continue;
if (abs(vx) > VMAX) continue;
if (abs(vy) > VMAX) continue;
if (abs(vz) > VMAX) continue;
r[i].x = (float) x;
r[i].y = (float) y;
r[i].z = (float) z;
r[i].vx = (float)vx;
r[i].vy = (float)vy;
r[i].vz = (float)vz;
i++;
if (verbose)
if( i % 1000 == 0 ) {
fprintf(stderr,".");
fflush(stderr);
}
}
if (verbose)
{
fprintf(stderr,"\n");
fprintf(stderr,"number of density trials %d\n",k);
fprintf(stderr,"number of velocity trials %d\n",j);
}
if( icofm ) {
xcm = ycm =zcm = vxcm =vycm =vzcm = 0;
for(i=0; i<nobj; i++) {
xcm += r[i].x;
ycm += r[i].y;
zcm += r[i].z;
vxcm += r[i].vx;
vycm += r[i].vy;
vzcm += r[i].vz;
}
xcm /= nobj; ycm /=nobj; zcm /= nobj;
vxcm /= nobj; vycm /=nobj; vzcm /= nobj;
for(i=0; i<nobj; i++) {
r[i].x -= xcm;
r[i].y -= ycm;
r[i].z -= zcm;
r[i].vx -= vxcm;
r[i].vy -= vycm;
r[i].vz -= vzcm;
}
}
if (buffer == NULL)
{
t = 0.0;
#ifdef ASCII
fprintf(stdout,"%d\n",nobj);
for(i=0; i<nobj; i++) {
fprintf(stdout,"% 15.7e % 15.7e % 15.7e % 15.7e % 15.7e % 15.7e % 15.7e\n", mass, r[i].x, r[i].y, r[i].z, r[i].vx, r[i].vy, r[i].vz);
}
#else
for(i=0; i<nobj; i++) {
fwrite(&mass,sizeof(float),1,stdout);
fwrite(r+i,sizeof(phase),1,stdout);
}
#endif
}
else
{
const int min_disk = 000000000;
const int max_disk = 100000000;
int NEL = 8;
int i,pc;
for (i = 0, pc= 0; i < nobj; i++, pc += NEL)
{
*((int*)&buffer[pc]) = min_disk + (i%(max_disk-min_disk));
buffer[pc+1] = mass;
buffer[pc+2] = r[i].x;
buffer[pc+3] = r[i].y;
buffer[pc+4] = r[i].z;
buffer[pc+5] = r[i].vx;
buffer[pc+6] = r[i].vy;
buffer[pc+7] = r[i].vz;
}
}
}
