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distrot.c
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/**
@file distrot.c
@brief Subroutines that control the integration of the obliquity model.
@author Russell Deitrick ([deitrr](https://github.com/deitrr/))
@date July 7 2015
*/
/* lines where something like iBody == 0 occurs
* ~149
* ~227
*/
#include "vplanet.h"
#include <assert.h>
#include <math.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
void BodyCopyDistRot(BODY *dest, BODY *src, int iTideModel, int iNumBodies,
int iBody) {
int iIndex, iPert;
dest[iBody].dXobl = src[iBody].dXobl;
dest[iBody].dYobl = src[iBody].dYobl;
dest[iBody].dZobl = src[iBody].dZobl;
dest[iBody].dDynEllip = src[iBody].dDynEllip;
dest[iBody].bForcePrecRate = src[iBody].bForcePrecRate;
dest[iBody].dPrecRate = src[iBody].dPrecRate;
dest[iBody].iCurrentStep = src[iBody].iCurrentStep;
dest[iBody].bReadOrbitData = src[iBody].bReadOrbitData;
dest[iBody].bCalcDynEllip = src[iBody].bCalcDynEllip;
dest[iBody].dSpecMomInertia = src[iBody].dSpecMomInertia;
}
void InitializeUpdateTmpBodyDistRot(BODY *body, CONTROL *control,
UPDATE *update, int iBody) {
if (body[iBody].bReadOrbitData) {
int iLine;
control->Evolve.tmpBody[iBody].daSemiSeries =
malloc(body[iBody].iNLines * sizeof(double));
control->Evolve.tmpBody[iBody].daHeccSeries =
malloc(body[iBody].iNLines * sizeof(double));
control->Evolve.tmpBody[iBody].daKeccSeries =
malloc(body[iBody].iNLines * sizeof(double));
control->Evolve.tmpBody[iBody].daPincSeries =
malloc(body[iBody].iNLines * sizeof(double));
control->Evolve.tmpBody[iBody].daQincSeries =
malloc(body[iBody].iNLines * sizeof(double));
for (iLine = 0; iLine < body[iBody].iNLines; iLine++) {
control->Evolve.tmpBody[iBody].daSemiSeries[iLine] =
body[iBody].daSemiSeries[iLine];
control->Evolve.tmpBody[iBody].daHeccSeries[iLine] =
body[iBody].daHeccSeries[iLine];
control->Evolve.tmpBody[iBody].daKeccSeries[iLine] =
body[iBody].daKeccSeries[iLine];
control->Evolve.tmpBody[iBody].daPincSeries[iLine] =
body[iBody].daPincSeries[iLine];
control->Evolve.tmpBody[iBody].daQincSeries[iLine] =
body[iBody].daQincSeries[iLine];
}
}
}
/**************** DISTROT options ********************/
void ReadForcePrecRate(BODY *body, CONTROL *control, FILES *files,
OPTIONS *options, SYSTEM *system, int iFile) {
int lTmp = -1, bTmp;
AddOptionBool(files->Infile[iFile].cIn, options->cName, &bTmp, &lTmp,
control->Io.iVerbose);
if (lTmp >= 0) {
NotPrimaryInput(iFile, options->cName, files->Infile[iFile].cIn, lTmp,
control->Io.iVerbose);
/* Option was found */
body[iFile - 1].bForcePrecRate = bTmp;
UpdateFoundOption(&files->Infile[iFile], options, lTmp, iFile);
} else {
body[iFile - 1].bForcePrecRate = options->dDefault;
}
}
void ReadPrecRate(BODY *body, CONTROL *control, FILES *files, OPTIONS *options,
SYSTEM *system, int iFile) {
/* Cannot exist in primary file */
int lTmp = -1;
double dTmp;
AddOptionDouble(files->Infile[iFile].cIn, options->cName, &dTmp, &lTmp,
control->Io.iVerbose);
if (lTmp >= 0) {
/* Option was found */
NotPrimaryInput(iFile, options->cName, files->Infile[iFile].cIn, lTmp,
control->Io.iVerbose);
body[iFile - 1].dPrecRate = dTmp;
UpdateFoundOption(&files->Infile[iFile], options, lTmp, iFile);
} else {
AssignDefaultDouble(options, &body[iFile - 1].dPrecRate, files->iNumInputs);
}
}
void ReadSpecMomInertia(BODY *body, CONTROL *control, FILES *files,
OPTIONS *options, SYSTEM *system, int iFile) {
/* Cannot exist in primary file */
int lTmp = -1;
double dTmp;
AddOptionDouble(files->Infile[iFile].cIn, options->cName, &dTmp, &lTmp,
control->Io.iVerbose);
if (lTmp >= 0) {
/* Option was found */
NotPrimaryInput(iFile, options->cName, files->Infile[iFile].cIn, lTmp,
control->Io.iVerbose);
body[iFile - 1].dSpecMomInertia = dTmp;
UpdateFoundOption(&files->Infile[iFile], options, lTmp, iFile);
} else {
AssignDefaultDouble(options, &body[iFile - 1].dSpecMomInertia,
files->iNumInputs);
}
}
void ReadOrbitData(BODY *body, CONTROL *control, FILES *files, OPTIONS *options,
SYSTEM *system, int iFile) {
int lTmp = -1, bTmp;
AddOptionBool(files->Infile[iFile].cIn, options->cName, &bTmp, &lTmp,
control->Io.iVerbose);
if (lTmp >= 0) {
NotPrimaryInput(iFile, options->cName, files->Infile[iFile].cIn, lTmp,
control->Io.iVerbose);
/* Option was found */
body[iFile - 1].bReadOrbitData = bTmp;
UpdateFoundOption(&files->Infile[iFile], options, lTmp, iFile);
} else {
body[iFile - 1].bReadOrbitData = options->dDefault;
}
}
void ReadFileOrbitData(BODY *body, CONTROL *control, FILES *files,
OPTIONS *options, SYSTEM *system, int iFile) {
int lTmp = -1;
char cTmp[OPTLEN];
AddOptionString(files->Infile[iFile].cIn, options->cName, cTmp, &lTmp,
control->Io.iVerbose);
if (lTmp >= 0) {
/* Cannot exist in primary input file -- Each body has an output file */
NotPrimaryInput(iFile, options->cName, files->Infile[iFile].cIn, lTmp,
control->Io.iVerbose);
strcpy(body[iFile - 1].cFileOrbitData, cTmp);
UpdateFoundOption(&files->Infile[iFile], options, lTmp, iFile);
} else if (iFile > 0) {
// sprintf(body[iFile-1].cFileOrbitData,"%s",options[OPT_FILEORBITDATA].cDefault);
strcpy(body[iFile - 1].cFileOrbitData, options->cDefault);
}
}
void InitializeOptionsDistRot(OPTIONS *options, fnReadOption fnRead[]) {
sprintf(options[OPT_DYNELLIP].cName, "dDynEllip");
sprintf(options[OPT_DYNELLIP].cDescr, "Planet's dynamical ellipticity");
sprintf(options[OPT_DYNELLIP].cDefault, "0.00328");
sprintf(options[OPT_DYNELLIP].cDimension, "nd");
options[OPT_DYNELLIP].dDefault = 0.00328;
options[OPT_DYNELLIP].iType = 2;
options[OPT_DYNELLIP].bMultiFile = 1;
fnRead[OPT_DYNELLIP] = &ReadDynEllip;
sprintf(options[OPT_CALCDYNELLIP].cName, "bCalcDynEllip");
sprintf(options[OPT_CALCDYNELLIP].cDescr,
"Calculate dynamical ellipticity from RotRate");
sprintf(options[OPT_CALCDYNELLIP].cDefault, "0");
options[OPT_CALCDYNELLIP].dDefault = 0;
options[OPT_CALCDYNELLIP].iType = 0;
options[OPT_CALCDYNELLIP].bMultiFile = 1;
fnRead[OPT_CALCDYNELLIP] = &ReadCalcDynEllip;
sprintf(
options[OPT_CALCDYNELLIP].cLongDescr,
"In DistRot, set this to 1 to force the equilibrium shape (dynamical \n"
"ellipticity) to be calculated based on the current rotation rate and "
"\n"
"hydrostatic equilibrium. Note that once the planet's rotation period "
"\n"
"exceeds 13 days, then the dynamical ellipticity will be held fixed \n"
"to match Venus' value. This calculation does not include tides. "
"Setting \n"
"this to 1 overrides %s.",
options[OPT_DYNELLIP].cName // XXX Check this!
);
sprintf(options[OPT_FORCEPRECRATE].cName, "bForcePrecRate");
sprintf(options[OPT_FORCEPRECRATE].cDescr,
"Set the axial precession to a fixed rate?");
sprintf(options[OPT_FORCEPRECRATE].cDefault, "0");
options[OPT_FORCEPRECRATE].dDefault = 0;
options[OPT_FORCEPRECRATE].iType = 0;
options[OPT_FORCEPRECRATE].bMultiFile = 1;
fnRead[OPT_FORCEPRECRATE] = &ReadForcePrecRate;
sprintf(options[OPT_FORCEPRECRATE].cLongDescr,
"In DisRot, set the axial precession rate to a fixed value. This "
"option \n"
"can mimic the forcing of a natural satellite, or be used for "
"testing.");
sprintf(options[OPT_PRECRATE].cName, "dPrecRate");
sprintf(options[OPT_PRECRATE].cDescr,
"Fixed rate of axial precession (angle/s)");
sprintf(options[OPT_PRECRATE].cDefault, "7.7261e-12");
sprintf(options[OPT_PRECRATE].cDimension, "angle/time");
options[OPT_PRECRATE].dDefault = 7.7261e-12;
options[OPT_PRECRATE].iType = 2;
options[OPT_PRECRATE].bMultiFile = 1;
fnRead[OPT_PRECRATE] = &ReadPrecRate;
sprintf(options[OPT_READORBITDATA].cLongDescr,
"Value of the body's axial precession frequency if %s is set to 1.\n"
"Default value is the modern Earth's value as driven by the Moon.",
options[OPT_FORCEPRECRATE].cName);
sprintf(options[OPT_SPECMOMINERTIA].cName, "dSpecMomInertia");
sprintf(options[OPT_SPECMOMINERTIA].cDescr,
"Specific moment of inertia of polar axis");
sprintf(options[OPT_SPECMOMINERTIA].cDefault, "0.33");
sprintf(options[OPT_SPECMOMINERTIA].cDimension, "nd");
options[OPT_SPECMOMINERTIA].dDefault = 0.33;
options[OPT_SPECMOMINERTIA].iType = 2;
options[OPT_SPECMOMINERTIA].bMultiFile = 1;
fnRead[OPT_SPECMOMINERTIA] = &ReadSpecMomInertia;
sprintf(options[OPT_FILEORBITDATA].cName, "sFileOrbitData");
// Define OPT_READORBITDATA so it can be used in the long help
sprintf(options[OPT_READORBITDATA].cName, "bReadOrbitData");
sprintf(options[OPT_FILEORBITDATA].cDescr,
"Name of file containing orbit time series");
sprintf(options[OPT_FILEORBITDATA].cDefault, "orbit.txt");
options[OPT_FILEORBITDATA].iType = 3;
fnRead[OPT_FILEORBITDATA] = &ReadFileOrbitData;
sprintf(
options[OPT_FILEORBITDATA].cLongDescr,
"File containing pre-computed orbital data. The file must have the \n"
"following format: Time SemiMajorAxis Eccentricity Inclination \n"
"ArgPericenter LongAscNode MeanAnomaly. The units of those \n"
"parameters is assumed to be the same as body being simulated. When \n"
"using this option, the integration must used a fixed timestep \n"
"(%s = 0), and the timestep (%s) must equal the cadence in the file, \n"
"with time units in the %s file assumed to be the same as for the \n"
"body file. See %s for more information.",
options[OPT_VARDT].cName, options[OPT_TIMESTEP].cName,
options[OPT_FILEORBITDATA].cName, options[OPT_READORBITDATA].cName);
// cName defined above
sprintf(options[OPT_READORBITDATA].cDescr,
"Read in orbital data for use with distrot?");
sprintf(options[OPT_READORBITDATA].cDefault, "0");
options[OPT_READORBITDATA].dDefault = 0;
options[OPT_READORBITDATA].iType = 0;
options[OPT_READORBITDATA].bMultiFile = 1;
fnRead[OPT_READORBITDATA] = &ReadOrbitData;
sprintf(options[OPT_READORBITDATA].cLongDescr,
"Rather than calculate orbital evolution with DistOrb or SpiNBody, "
"users \n"
"may read in a previously run simulation. See %s for more \n"
"information.",
options[OPT_FILEORBITDATA].cName);
}
void ReadOptionsDistRot(BODY *body, CONTROL *control, FILES *files,
OPTIONS *options, SYSTEM *system, fnReadOption fnRead[],
int iBody) {
int iOpt;
for (iOpt = OPTSTARTDISTROT; iOpt < OPTENDDISTROT; iOpt++) {
if (options[iOpt].iType != -1) {
fnRead[iOpt](body, control, files, &options[iOpt], system, iBody + 1);
}
}
}
/******************* Verify DISTROT ******************/
/* In the following, iBody is the current body number that is getting assigned,
iPert counts the number of bodies perturbing iBody, and iBodyPert is the
body number of the current perturbing body. */
/* The indexing gets REEAAALLY confusing here. iPert = 0 to iGravPerts-1
correspond to all perturbing planets, iPert = iGravPerts corresponds to the
stellar torque, and
iPert = iGravPerts+1 to the stellar general relativistic correction, if
applied */
void InitializeXoblDistRot(BODY *body, UPDATE *update, int iBody, int iPert) {
update[iBody]
.iaType[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]] = 2;
update[iBody].padDXoblDtDistRot[iPert] =
&update[iBody].daDerivProc[update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]];
update[iBody]
.iNumBodies[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]] =
2;
update[iBody]
.iaBody[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]] =
malloc(update[iBody].iNumBodies[update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]] *
sizeof(int));
update[iBody]
.iaBody[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]][0] =
iBody;
update[iBody]
.iaBody[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]][1] =
body[iBody].iaGravPerts[iPert];
}
void InitializeYoblDistRot(BODY *body, UPDATE *update, int iBody, int iPert) {
update[iBody]
.iaType[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]] = 2;
update[iBody].padDYoblDtDistRot[iPert] =
&update[iBody].daDerivProc[update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]];
update[iBody]
.iNumBodies[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]] =
2;
update[iBody]
.iaBody[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]] =
malloc(update[iBody].iNumBodies[update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]] *
sizeof(int));
update[iBody]
.iaBody[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]][0] =
iBody;
update[iBody]
.iaBody[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]][1] =
body[iBody].iaGravPerts[iPert];
}
void InitializeZoblDistRot(BODY *body, UPDATE *update, int iBody, int iPert) {
update[iBody]
.iaType[update[iBody].iZobl][update[iBody].iaZoblDistRot[iPert]] = 2;
update[iBody].padDZoblDtDistRot[iPert] =
&update[iBody].daDerivProc[update[iBody].iZobl]
[update[iBody].iaZoblDistRot[iPert]];
update[iBody]
.iNumBodies[update[iBody].iZobl][update[iBody].iaZoblDistRot[iPert]] =
2;
update[iBody]
.iaBody[update[iBody].iZobl][update[iBody].iaZoblDistRot[iPert]] =
malloc(update[iBody].iNumBodies[update[iBody].iZobl]
[update[iBody].iaZoblDistRot[iPert]] *
sizeof(int));
update[iBody]
.iaBody[update[iBody].iZobl][update[iBody].iaZoblDistRot[iPert]][0] =
iBody;
update[iBody]
.iaBody[update[iBody].iZobl][update[iBody].iaZoblDistRot[iPert]][1] =
body[iBody].iaGravPerts[iPert];
}
void InitializeXoblDistRotStar(BODY *body, UPDATE *update, int iBody,
int iPert) {
update[iBody]
.iaType[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]] = 2;
update[iBody].padDXoblDtDistRot[iPert] =
&update[iBody].daDerivProc[update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]];
update[iBody]
.iNumBodies[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]] =
2;
update[iBody]
.iaBody[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]] =
malloc(update[iBody].iNumBodies[update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]] *
sizeof(int));
update[iBody]
.iaBody[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]][0] =
iBody;
update[iBody]
.iaBody[update[iBody].iXobl][update[iBody].iaXoblDistRot[iPert]][1] = 0;
}
void InitializeYoblDistRotStar(BODY *body, UPDATE *update, int iBody,
int iPert) {
update[iBody]
.iaType[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]] = 2;
update[iBody].padDYoblDtDistRot[iPert] =
&update[iBody].daDerivProc[update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]];
update[iBody]
.iNumBodies[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]] =
2;
update[iBody]
.iaBody[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]] =
malloc(update[iBody].iNumBodies[update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]] *
sizeof(int));
update[iBody]
.iaBody[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]][0] =
iBody;
update[iBody]
.iaBody[update[iBody].iYobl][update[iBody].iaYoblDistRot[iPert]][1] = 0;
}
void VerifyOrbitData(BODY *body, CONTROL *control, OPTIONS *options,
int iBody) {
int iNLines, iLine, c, iNumColsFound, bFoo, iNumCols = 7;
double dttmp, datmp, detmp, ditmp, daptmp, dlatmp, dmatmp;
FILE *fileorb;
char cLine[LINE], cFoo[MAXARRAY][OPTLEN];
if (body[iBody].bReadOrbitData) {
if (options[OPT_FILEORBITDATA].iLine[iBody + 1] == -1) {
fprintf(stderr, "ERROR: Must set %s if using %s for file %s\n",
options[OPT_FILEORBITDATA].cName,
options[OPT_READORBITDATA].cName, body[iBody].cName);
exit(EXIT_INPUT);
} else {
fileorb = fopen(body[iBody].cFileOrbitData, "r");
if (fileorb == NULL) {
printf("ERROR: File %s not found.\n", body[iBody].cFileOrbitData);
exit(EXIT_INPUT);
}
// Check file has exactly 7 columns
if (fgets(cLine, LINE, fileorb) == NULL) {
fprintf(stderr, "ERROR: Unable to read line from orbit data file.");
exit(EXIT_INPUT);
}
GetWords(cLine, cFoo, &iNumColsFound, &bFoo);
if (iNumCols != iNumColsFound) {
if (control->Io.iVerbose >= VERBERR) {
fprintf(stderr,
"ERROR: Incorrect number of columns (%d) in %s file %s. "
"Must be exactly %d.\n",
iNumColsFound, options[OPT_READORBITDATA].cName,
body[iBody].cFileOrbitData, iNumCols);
}
exit(EXIT_INPUT);
}
iNLines = 1;
while ((c = getc(fileorb)) != EOF) {
if (c == '\n') {
iNLines++; // add 1 for each new line
}
}
rewind(fileorb);
body[iBody].iNLines = iNLines;
body[iBody].daTimeSeries = malloc(iNLines * sizeof(double));
body[iBody].daSemiSeries = malloc(iNLines * sizeof(double));
body[iBody].daEccSeries = malloc(iNLines * sizeof(double));
body[iBody].daIncSeries = malloc(iNLines * sizeof(double));
body[iBody].daArgPSeries = malloc(iNLines * sizeof(double));
body[iBody].daLongASeries = malloc(iNLines * sizeof(double));
body[iBody].daMeanASeries = malloc(iNLines * sizeof(double));
body[iBody].daHeccSeries = malloc(iNLines * sizeof(double));
body[iBody].daKeccSeries = malloc(iNLines * sizeof(double));
body[iBody].daPincSeries = malloc(iNLines * sizeof(double));
body[iBody].daQincSeries = malloc(iNLines * sizeof(double));
iLine = 0;
while (feof(fileorb) == 0) {
if (fscanf(fileorb, "%lf %lf %lf %lf %lf %lf %lf\n", &dttmp, &datmp,
&detmp, &ditmp, &daptmp, &dlatmp, &dmatmp) != 7) {
fprintf(stderr, "ERROR: Incorrect number of columns in orbit file.");
exit(EXIT_INPUT);
}
body[iBody].daTimeSeries[iLine] =
dttmp * fdUnitsTime(control->Units[iBody + 1].iTime);
body[iBody].daSemiSeries[iLine] =
datmp * fdUnitsLength(control->Units[iBody + 1].iLength);
body[iBody].daEccSeries[iLine] = detmp;
if (control->Units[iBody + 1].iAngle == 0) {
body[iBody].daIncSeries[iLine] = ditmp;
body[iBody].daArgPSeries[iLine] = daptmp;
body[iBody].daLongASeries[iLine] = dlatmp;
body[iBody].daMeanASeries[iLine] = dmatmp;
} else {
body[iBody].daIncSeries[iLine] = ditmp * DEGRAD;
body[iBody].daArgPSeries[iLine] = daptmp * DEGRAD;
body[iBody].daLongASeries[iLine] = dlatmp * DEGRAD;
body[iBody].daMeanASeries[iLine] = dmatmp * DEGRAD;
}
body[iBody].daHeccSeries[iLine] = body[iBody].daEccSeries[iLine] *
sin(body[iBody].daArgPSeries[iLine] +
body[iBody].daLongASeries[iLine]);
body[iBody].daKeccSeries[iLine] = body[iBody].daEccSeries[iLine] *
cos(body[iBody].daArgPSeries[iLine] +
body[iBody].daLongASeries[iLine]);
body[iBody].daPincSeries[iLine] =
sin(0.5 * body[iBody].daIncSeries[iLine]) *
sin(body[iBody].daLongASeries[iLine]);
body[iBody].daQincSeries[iLine] =
sin(0.5 * body[iBody].daIncSeries[iLine]) *
cos(body[iBody].daLongASeries[iLine]);
iLine++;
}
fclose(fileorb);
}
body[iBody].iCurrentStep = 0;
if (control->Evolve.bVarDt) {
fprintf(stderr,
"ERROR: Cannot use variable time step (%s = 1) if %s = 1\n",
options[OPT_VARDT].cName, options[OPT_READORBITDATA].cName);
exit(EXIT_INPUT);
}
if (control->Evolve.bDoForward) {
if (body[iBody].daTimeSeries[1] != control->Evolve.dTimeStep) {
fprintf(stderr,
"ERROR: Time step size (%s = %lf) must match orbital data "
"output time "
"(%lf) if %s = 1\n",
options[OPT_TIMESTEP].cName, control->Evolve.dTimeStep,
body[iBody].daTimeSeries[1], options[OPT_READORBITDATA].cName);
exit(EXIT_INPUT);
}
} else if (control->Evolve.bDoBackward) {
if (body[iBody].daTimeSeries[1] != -1 * control->Evolve.dTimeStep) {
fprintf(stderr,
"ERROR: Time step size (%s = %lf) must match orbital data "
"output time "
"(%lf) if %s = 1\n",
options[OPT_TIMESTEP].cName, control->Evolve.dTimeStep,
body[iBody].daTimeSeries[1], options[OPT_READORBITDATA].cName);
exit(EXIT_INPUT);
}
}
if (iNLines < (control->Evolve.dStopTime / control->Evolve.dTimeStep + 1)) {
fprintf(stderr,
"ERROR: Final time in %s is less than %s; simulation cannot be "
"completed.\n",
options[OPT_FILEORBITDATA].cName, options[OPT_STOPTIME].cName);
exit(EXIT_INPUT); // Should really be a DoubleLineExit
}
}
}
void AssignDistRotDerivatives(BODY *body, EVOLVE *evolve, UPDATE *update,
fnUpdateVariable ***fnUpdate, int iBody) {
int i, j = 0, iPert = 0, jBody = 0;
/* The indexing gets REEAAALLY confusing here. iPert = 0 to iGravPerts-1
* correspond to all perturbing planets, iPert = iGravPerts corresponds to the
* stellar torque, and iPert = iGravPerts+1 to the stellar general
* relativistic correction, if applied */
if (iBody >= 1) {
if (body[iBody].bReadOrbitData) {
fnUpdate[iBody][update[iBody].iXobl][update[iBody].iaXoblDistRot[0]] =
&fndDistRotExtDxDt;
fnUpdate[iBody][update[iBody].iYobl][update[iBody].iaYoblDistRot[0]] =
&fndDistRotExtDyDt;
fnUpdate[iBody][update[iBody].iZobl][update[iBody].iaZoblDistRot[0]] =
&fndDistRotExtDzDt;
} else {
if (evolve->iDistOrbModel == RD4) {
/* Body updates */
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]] = &fndDistRotRD4DxDt;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]] = &fndDistRotRD4DyDt;
/* z = cos(obl) */
fnUpdate[iBody][update[iBody].iZobl]
[update[iBody].iaZoblDistRot[iPert]] = &fndDistRotRD4DzDt;
}
/* Body updates for stellar torque, treating star as "perturber" (only
* needed for x and y -> pA) */
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[body[iBody].iGravPerts]] =
&fndDistRotRD4DxDt;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[body[iBody].iGravPerts]] =
&fndDistRotRD4DyDt;
} else if (evolve->iDistOrbModel == LL2) {
/* Body updates */
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]] = &fndDistRotLL2DxDt;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]] = &fndDistRotLL2DyDt;
/* z = cos(obl) */
fnUpdate[iBody][update[iBody].iZobl]
[update[iBody].iaZoblDistRot[iPert]] = &fndDistRotLL2DzDt;
}
/* Body updates for stellar torque, treating star as "perturber" (only
* needed for x and y -> pA) */
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[body[iBody].iGravPerts]] =
&fndDistRotLL2DxDt;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[body[iBody].iGravPerts]] =
&fndDistRotLL2DyDt;
}
}
if (body[iBody].bGRCorr) {
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[body[iBody].iGravPerts + 1]] =
&fndAxialGRDxDt;
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[body[iBody].iGravPerts + 1]] =
&fndAxialGRDyDt;
}
}
}
void NullDistRotDerivatives(BODY *body, EVOLVE *evolve, UPDATE *update,
fnUpdateVariable ***fnUpdate, int iBody) {
int i, j = 0, iPert = 0, jBody = 0;
/* The indexing gets REEAAALLY confusing here. iPert = 0 to iGravPerts-1
* correspond to all perturbing planets, iPert = iGravPerts corresponds to the
* stellar torque, and iPert = iGravPerts+1 to the stellar general
* relativistic correction, if applied */
if (iBody >= 1) {
if (body[iBody].bReadOrbitData) {
fnUpdate[iBody][update[iBody].iXobl][update[iBody].iaXoblDistRot[0]] =
&fndUpdateFunctionTiny;
fnUpdate[iBody][update[iBody].iYobl][update[iBody].iaYoblDistRot[0]] =
&fndUpdateFunctionTiny;
fnUpdate[iBody][update[iBody].iZobl][update[iBody].iaZoblDistRot[0]] =
&fndUpdateFunctionTiny;
} else {
if (evolve->iDistOrbModel == RD4) {
/* Body updates */
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]] = &fndUpdateFunctionTiny;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]] = &fndUpdateFunctionTiny;
/* z = cos(obl) */
fnUpdate[iBody][update[iBody].iZobl]
[update[iBody].iaZoblDistRot[iPert]] = &fndUpdateFunctionTiny;
}
/* Body updates for stellar torque, treating star as "perturber" (only
* needed for x and y -> pA) */
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[body[iBody].iGravPerts]] =
&fndUpdateFunctionTiny;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[body[iBody].iGravPerts]] =
&fndUpdateFunctionTiny;
} else if (evolve->iDistOrbModel == LL2) {
/* Body updates */
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[iPert]] = &fndUpdateFunctionTiny;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[iPert]] = &fndUpdateFunctionTiny;
/* z = cos(obl) */
fnUpdate[iBody][update[iBody].iZobl]
[update[iBody].iaZoblDistRot[iPert]] = &fndUpdateFunctionTiny;
}
/* Body updates for stellar torque, treating star as "perturber" (only
* needed for x and y -> pA) */
/* x = sin(obl)*cos(pA) */
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[body[iBody].iGravPerts]] =
&fndUpdateFunctionTiny;
/* y = sin(obl)*sin(pA) */
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[body[iBody].iGravPerts]] =
&fndUpdateFunctionTiny;
}
}
if (body[iBody].bGRCorr) {
fnUpdate[iBody][update[iBody].iXobl]
[update[iBody].iaXoblDistRot[body[iBody].iGravPerts + 1]] =
&fndUpdateFunctionTiny;
fnUpdate[iBody][update[iBody].iYobl]
[update[iBody].iaYoblDistRot[body[iBody].iGravPerts + 1]] =
&fndUpdateFunctionTiny;
}
}
}
void VerifyDistRot(BODY *body, CONTROL *control, FILES *files, OPTIONS *options,
OUTPUT *output, SYSTEM *system, UPDATE *update, int iBody,
int iModule) {
int i, j = 0, iPert = 0, jBody = 0;
VerifyOrbitData(body, control, options, iBody);
/* The indexing gets REEAAALLY confusing here. iPert = 0 to iGravPerts-1
* correspond to all perturbing planets, iPert = iGravPerts corresponds to the
* stellar torque, and iPert = iGravPerts+1 to the stellar general
* relativistic correction, if applied */
if (iBody >= 1) {
control->fnPropsAux[iBody][iModule] = &PropsAuxDistRot;
VerifyDynEllip(body, control, options, files->Infile[iBody + 1].cIn, iBody,
control->Io.iVerbose);
if (body[iBody].bReadOrbitData) {
if (control->Io.iVerbose >= VERBINPUT) {
fprintf(
stderr,
"INFO: When reading in using %s to calculate "
"rotational evolution, Cassini parameters may not be correct.\n",
options[OPT_READORBITDATA].cName);
}
system->daLOrb = malloc(3 * sizeof(double));
body[iBody].daLOrb = malloc(3 * sizeof(double));
body[iBody].daLOrbTmp = malloc(3 * sizeof(double));
}
CalcXYZobl(body, iBody);
body[iBody].daLRot = malloc(3 * sizeof(double));
body[iBody].daLRotTmp = malloc(3 * sizeof(double));
if (body[iBody].bReadOrbitData) {
InitializeXoblDistRot(body, update, iBody, 0);
InitializeYoblDistRot(body, update, iBody, 0);
InitializeZoblDistRot(body, update, iBody, 0);
} else {
if (control->Evolve.iDistOrbModel == RD4) {
/* Body updates */
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
/* x = sin(obl)*cos(pA) */
InitializeXoblDistRot(body, update, iBody, iPert);
/* y = sin(obl)*sin(pA) */
InitializeYoblDistRot(body, update, iBody, iPert);
/* z = cos(obl) */
InitializeZoblDistRot(body, update, iBody, iPert);
}
/* Body updates for stellar torque, treating star as "perturber" (only
* needed for x and y -> pA) */
/* x = sin(obl)*cos(pA) */
InitializeXoblDistRotStar(body, update, iBody, body[iBody].iGravPerts);
/* y = sin(obl)*sin(pA) */
InitializeYoblDistRotStar(body, update, iBody, body[iBody].iGravPerts);
} else if (control->Evolve.iDistOrbModel == LL2) {
/* Body updates */
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
/* x = sin(obl)*cos(pA) */
InitializeXoblDistRot(body, update, iBody, iPert);
/* y = sin(obl)*sin(pA) */
InitializeYoblDistRot(body, update, iBody, iPert);
/* z = cos(obl) */
InitializeZoblDistRot(body, update, iBody, iPert);
}
/* Body updates for stellar torque, treating star as "perturber" (only
* needed for x and y -> pA) */
/* x = sin(obl)*cos(pA) */
InitializeXoblDistRotStar(body, update, iBody, body[iBody].iGravPerts);
/* y = sin(obl)*sin(pA) */
InitializeYoblDistRotStar(body, update, iBody, body[iBody].iGravPerts);
}
}
if (body[iBody].bGRCorr) {
InitializeXoblDistRotStar(body, update, iBody,
body[iBody].iGravPerts + 1);
InitializeYoblDistRotStar(body, update, iBody,
body[iBody].iGravPerts + 1);
}
}
control->fnForceBehavior[iBody][iModule] = &ForceBehaviorDistRot;
control->Evolve.fnBodyCopy[iBody][iModule] = &BodyCopyDistRot;
}
/***************** DISTROT Update *****************/
void InitializeUpdateDistRot(BODY *body, UPDATE *update, int iBody) {
if (iBody > 0) {
if (body[iBody].bReadOrbitData) {
body[iBody].iGravPerts = 0;
body[iBody].iaGravPerts = malloc(1 * sizeof(int));
body[iBody].iaGravPerts[0] = 0;
}
if (update[iBody].iNumXobl == 0) {
update[iBody].iNumVars++;
}
update[iBody].iNumXobl += body[iBody].iGravPerts + 1;
if (update[iBody].iNumYobl == 0) {
update[iBody].iNumVars++;
}
update[iBody].iNumYobl += body[iBody].iGravPerts + 1;
if (update[iBody].iNumZobl == 0) {
update[iBody].iNumVars++;
}
update[iBody].iNumZobl += body[iBody].iGravPerts;
if (body[iBody].bGRCorr) {
update[iBody].iNumXobl += 1;
update[iBody].iNumYobl += 1;
}
if (body[iBody].bReadOrbitData) {
update[iBody].iNumZobl += 1;
}
}
}
void FinalizeUpdateXoblDistRot(BODY *body, UPDATE *update, int *iEqn, int iVar,
int iBody, int iFoo) {
int iPert;
/* The indexing gets REEAAALLY confusing here. iPert = 0 to iGravPerts-1
* correspond to all perturbing planets, iPert = iGravPerts corresponds to the
* stellar torque, and iPert = iGravPerts+1 to the stellar general
* relativistic correction, if applied */
if (body[iBody].bGRCorr) {
update[iBody].padDXoblDtDistRot =
malloc((body[iBody].iGravPerts + 2) * sizeof(double *));
update[iBody].iaXoblDistRot =
malloc((body[iBody].iGravPerts + 2) * sizeof(int));
for (iPert = 0; iPert < body[iBody].iGravPerts + 2; iPert++) {
update[iBody].iaModule[iVar][*iEqn] = DISTROT;
update[iBody].iaXoblDistRot[iPert] = (*iEqn)++;
}
} else {
update[iBody].padDXoblDtDistRot =
malloc((body[iBody].iGravPerts + 1) * sizeof(double *));
update[iBody].iaXoblDistRot =
malloc((body[iBody].iGravPerts + 1) * sizeof(int));
for (iPert = 0; iPert < body[iBody].iGravPerts + 1; iPert++) {
update[iBody].iaModule[iVar][*iEqn] = DISTROT;
update[iBody].iaXoblDistRot[iPert] = (*iEqn)++;
}
}
}
void FinalizeUpdateYoblDistRot(BODY *body, UPDATE *update, int *iEqn, int iVar,
int iBody, int iFoo) {
int iPert;
/* The indexing gets REEAAALLY confusing here. iPert = 0 to iGravPerts-1
* correspond to all perturbing planets, iPert = iGravPerts corresponds to the
* stellar torque, and iPert = iGravPerts+1 to the stellar general
* relativistic correction, if applied */
if (body[iBody].bGRCorr) {
update[iBody].padDYoblDtDistRot =
malloc((body[iBody].iGravPerts + 2) * sizeof(double *));
update[iBody].iaYoblDistRot =
malloc((body[iBody].iGravPerts + 2) * sizeof(int));
for (iPert = 0; iPert < body[iBody].iGravPerts + 2; iPert++) {
update[iBody].iaModule[iVar][*iEqn] = DISTROT;
update[iBody].iaYoblDistRot[iPert] = (*iEqn)++;
}
} else {
update[iBody].padDYoblDtDistRot =
malloc((body[iBody].iGravPerts + 1) * sizeof(double *));
update[iBody].iaYoblDistRot =
malloc((body[iBody].iGravPerts + 1) * sizeof(int));
for (iPert = 0; iPert < body[iBody].iGravPerts + 1; iPert++) {
update[iBody].iaModule[iVar][*iEqn] = DISTROT;
update[iBody].iaYoblDistRot[iPert] = (*iEqn)++;
}
}
}
void FinalizeUpdateZoblDistRot(BODY *body, UPDATE *update, int *iEqn, int iVar,
int iBody, int iFoo) {
int iPert;
if (body[iBody].bReadOrbitData) {
update[iBody].padDZoblDtDistRot = malloc(1 * sizeof(double *));
update[iBody].iaZoblDistRot = malloc(1 * sizeof(int));
update[iBody].iaModule[iVar][*iEqn] = DISTROT;
update[iBody].iaZoblDistRot[0] = (*iEqn)++;
} else {
update[iBody].padDZoblDtDistRot =
malloc((body[iBody].iGravPerts) * sizeof(double *));
update[iBody].iaZoblDistRot =
malloc((body[iBody].iGravPerts) * sizeof(int));
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
update[iBody].iaModule[iVar][*iEqn] = DISTROT;
update[iBody].iaZoblDistRot[iPert] = (*iEqn)++;
}
}
}
/***************** DISTROT Halts *****************/
void CountHaltsDistRot(HALT *halt, int *iNumHalts) {
}
void VerifyHaltDistRot(BODY *body, CONTROL *control, OPTIONS *options,
int iBody, int *iHalt) {
}
/************* DISTROT Outputs ******************/
void WriteBodyDOblDtDistRot(BODY *body, CONTROL *control, OUTPUT *output,
SYSTEM *system, UNITS *units, UPDATE *update,
int iBody, double *dTmp, char cUnit[]) {
double dDeriv, dObldx, dObldy, dObldz;
int iPert;
if ((body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl) > 0) {
dObldx = body[iBody].dXobl * body[iBody].dZobl /
(sqrt(body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl) *
(body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl +
body[iBody].dZobl * body[iBody].dZobl));
dObldy = body[iBody].dYobl * body[iBody].dZobl /
(sqrt(body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl) *
(body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl +
body[iBody].dZobl * body[iBody].dZobl));
} else {
dObldx = 0.0;
dObldy = 0.0;
}
dObldz = -sqrt(body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl) /
(body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl +
body[iBody].dZobl * body[iBody].dZobl);
/* Ensure that we don't overwrite derivative */
dDeriv = 0;
for (iPert = 0; iPert < body[iBody].iGravPerts; iPert++) {
dDeriv += dObldx * (*(update[iBody].padDXoblDtDistRot[iPert])) +
dObldy * (*(update[iBody].padDYoblDtDistRot[iPert])) +
dObldz * (*(update[iBody].padDZoblDtDistRot[iPert]));
}
*dTmp = dDeriv;
if (output->bDoNeg[iBody]) {
*dTmp *= output->dNeg;
strcpy(cUnit, output->cNeg);
} else {
*dTmp *= fdUnitsTime(units->iTime);
fsUnitsRate(units->iTime, cUnit);
*dTmp /= fdUnitsAngle(units->iAngle);
fsUnitsAngle(units->iAngle, cUnit);
}
}
void WriteOblTimeDistRot(BODY *body, CONTROL *control, OUTPUT *output,
SYSTEM *system, UNITS *units, UPDATE *update,
int iBody, double *dTmp, char cUnit[]) {
double dDeriv, dObldx, dObldy, dObldz;
int iPert;
if ((body[iBody].dXobl * body[iBody].dXobl +
body[iBody].dYobl * body[iBody].dYobl) > 0) {
dObldx = body[iBody].dXobl * body[iBody].dZobl /