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//
// GENERATED FILE
//
use super::*;
use f2rust_std::*;
const NARGP: i32 = 8;
const NECC: i32 = 6;
const NINC: i32 = 7;
const NLNODE: i32 = 4;
const NM0: i32 = 8;
const NRP: i32 = 1;
const STRSIZ: i32 = 400;
const TIGHT: f64 = 0.0000000000001;
const MEDIUM: f64 = 0.000000000001;
const EASY: f64 = 0.0000000001;
const LOOSE: f64 = 0.00000001;
const VLOOSE: f64 = 0.000001;
const SLOPPY: f64 = 0.001;
const CLOSE: f64 = 0.0000000001;
//$Procedure F_OSCELT ( OSCELT routine tests )
pub fn F_OSCELT(OK: &mut bool, ctx: &mut Context) -> f2rust_std::Result<()> {
let mut TSTDSC = [b' '; STRSIZ as usize];
let mut ELTS = StackArray::<f64, 8>::new(1..=8);
let mut ET: f64 = 0.0;
let mut INELTS = StackArray::<f64, 8>::new(1..=8);
let mut MU: f64 = 0.0;
let mut STATE = StackArray::<f64, 6>::new(1..=6);
let mut STATE2 = StackArray::<f64, 6>::new(1..=6);
let mut TOL: f64 = 0.0;
let mut XARGP = StackArray::<f64, 8>::new(1..=NARGP);
let mut XECC = StackArray::<f64, 6>::new(1..=NECC);
let mut XELTS = StackArray::<f64, 8>::new(1..=8);
let mut XINC = StackArray::<f64, 7>::new(1..=NINC);
let mut XLNODE = StackArray::<f64, 4>::new(1..=NLNODE);
let mut XM0 = StackArray::<f64, 8>::new(1..=NM0);
let mut XRP = StackArray::<f64, 1>::new(1..=NRP);
let mut SUCCES: bool = false;
//
// Test Utility Functions
//
//
// SPICELIB Functions
//
// DOUBLE PRECISION VNORM
//
// Local Parameters
//
//
// The value of CLOSE must match that used in OSCELT.
//
//
// Local Variables
//
//
// Begin every test family with an open call.
//
testutil::TOPEN(b"F_OSCELT", ctx)?;
//
// Error tests:
//
for I in 1..=3 {
STATE[I] = (1000.0 * I as f64);
}
for I in 4..=6 {
STATE[I] = -(10.0 * I as f64);
}
testutil::TCASE(b"Invalid GM.", ctx)?;
spicelib::OSCELT(STATE.as_slice(), 100.0, 0.0, ELTS.as_slice_mut(), ctx)?;
testutil::CHCKXC(true, b"SPICE(NONPOSITIVEMASS)", OK, ctx)?;
testutil::TCASE(b"Specific angular momentum == 0", ctx)?;
for I in 4..=6 {
STATE[I] = 0.0;
}
spicelib::OSCELT(
STATE.as_slice(),
100.0,
10000000000.0,
ELTS.as_slice_mut(),
ctx,
)?;
testutil::CHCKXC(true, b"SPICE(DEGENERATECASE)", OK, ctx)?;
//
// Normal cases:
//
//
// Set up the expected element values.
//
//
// Expected argument of periapse:
//
for IARGP in 1..=NARGP {
XARGP[IARGP] = ((((IARGP - 1) as f64) * spicelib::TWOPI(ctx)) / NARGP as f64);
}
//
// Expected eccentricity:
//
XECC[1] = 0.0;
XECC[2] = 0.5;
XECC[3] = 0.999;
XECC[4] = 1.0;
XECC[5] = 1.001;
XECC[6] = 1.5;
//
// Expected inclination:
//
XINC[1] = 0.0;
XINC[2] = (CLOSE / 2 as f64);
XINC[3] = (0.25 * spicelib::PI(ctx));
XINC[4] = (0.5 * spicelib::PI(ctx));
XINC[5] = (0.75 * spicelib::PI(ctx));
XINC[6] = (spicelib::PI(ctx) - (CLOSE / 2 as f64));
XINC[7] = spicelib::PI(ctx);
//
// Expected longitude of the ascending node:
//
for ILNODE in 1..=NLNODE {
XLNODE[ILNODE] = ((((ILNODE - 1) as f64) * spicelib::TWOPI(ctx)) / NLNODE as f64);
}
//
// Expected mean anomaly:
//
for IM0 in 1..=NM0 {
XM0[IM0] = ((((IM0 - 1) as f64) * spicelib::TWOPI(ctx)) / NM0 as f64);
}
//
// Epoch:
//
ET = 100000000.0;
//
// Expected perifocal distance:
//
XRP[1] = f64::powi(2.0, 18);
//
// GM of central body (we make this the cube of RP so we may
// recover an eccentricity of zero when we have a circular orbit):
//
MU = f64::powi(2.0, 54);
//
// For a variety of element sets, we'll use CONICS to produce
// the equivalent state vector. We'll then try to recover
// the elements from the state vector.
//
for IARGP in 1..=NARGP {
for IECC in 1..=NECC {
for IINC in 1..=NINC {
for ILNODE in 1..=NLNODE {
for IM0 in 1..=NM0 {
//
// Assign the input elements for this test case.
//
INELTS[1] = XRP[1];
INELTS[2] = XECC[IECC];
INELTS[3] = XINC[IINC];
INELTS[4] = XLNODE[ILNODE];
INELTS[5] = XARGP[IARGP];
INELTS[6] = XM0[IM0];
INELTS[7] = ET;
INELTS[8] = MU;
//
// Set the expected elements.
//
for I in 1..=8 {
XELTS[I] = INELTS[I];
}
// In some cases, these are not the input
// elements, so adjust accordingly:
//
// If the input inclination is close to 0 or pi,
// the output inclination will be rounded. The
// longitude of the ascending node becomes 0.
//
if (f64::abs((INELTS[3] - 0.0)) < CLOSE) {
XELTS[3] = 0.0;
XELTS[4] = 0.0;
} else if (f64::abs((INELTS[3] - spicelib::PI(ctx))) < CLOSE) {
XELTS[3] = spicelib::PI(ctx);
XELTS[4] = 0.0;
}
//
// If the eccentricity is "close" to 1, make it 1.
//
XELTS[2] = spicelib::EXACT(XELTS[2], 1.0, CLOSE);
//
// Set up the test description for the TCASE call.
//
fstr::assign(&mut TSTDSC, b"RP = #; ECC = #; INC = #; LNODE = #; ARGP = #; M0 = #; ET = #;, MU = #");
for I in 1..=8 {
spicelib::REPMD(&TSTDSC.clone(), b"#", INELTS[I], 14, &mut TSTDSC, ctx);
}
testutil::TCASE(&TSTDSC, ctx)?;
//
// Obtain the equivalent state vector, then call
// OSCELT.
//
spicelib::CONICS(INELTS.as_slice(), ET, STATE.as_slice_mut(), ctx)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
spicelib::OSCELT(STATE.as_slice(), ET, MU, ELTS.as_slice_mut(), ctx)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
// WRITE (*,*) 'ELTS(2) = ', ELTS(2)
// WRITE (*,*) 'ELTS(3) = ', ELTS(3)
SUCCES = true;
//
// See how well we did.
//
// Set the tolerance to use for RP; acknowledge
// that we can't recover RP for nearly
// parabolic orbits.
//
if (INELTS[2] == 1.0) {
TOL = MEDIUM;
} else if (f64::abs((INELTS[2] - 1.0)) < CLOSE) {
TOL = SLOPPY;
} else if (f64::abs((INELTS[2] - 1.0)) < 0.0001) {
TOL = LOOSE;
} else {
TOL = EASY;
}
testutil::CHCKSD(b"RP", ELTS[1], b"~/", XELTS[1], TOL, OK, ctx)?;
SUCCES = (SUCCES && *OK);
//
// We use the same tolerances for eccentricity
// as for inclination.
//
testutil::CHCKSD(b"ECC", ELTS[2], b"~", XELTS[2], TOL, OK, ctx)?;
SUCCES = (SUCCES && *OK);
//
// We should always be able to recover inclination
// reasonably accurately.
//
TOL = EASY;
testutil::CHCKSD(b"INC", ELTS[3], b"~", XELTS[3], TOL, OK, ctx)?;
SUCCES = (SUCCES && *OK);
//
// When the inclination is not too close to 0
// or pi, we should be able to recover it
// reasonably accurately.
//
if (f64::sin(XELTS[4]) > CLOSE) {
TOL = EASY;
} else {
TOL = LOOSE;
}
if (f64::abs((ELTS[4] - XELTS[4])) <= spicelib::PI(ctx)) {
testutil::CHCKSD(b"LNODE", ELTS[4], b"~", XELTS[4], TOL, OK, ctx)?;
} else {
if (ELTS[4] > XELTS[4]) {
XELTS[4] = (XELTS[4] + spicelib::TWOPI(ctx));
} else {
XELTS[4] = (XELTS[4] - spicelib::TWOPI(ctx));
}
testutil::CHCKSD(b"LNODE", ELTS[4], b"~", XELTS[4], TOL, OK, ctx)?;
}
SUCCES = (SUCCES && *OK);
//
// Check ARGP:
//
// When the eccentricity is not too close to
// zero and the inclination is not too close to
// zero or pi, we can use a reasonably tight tolerance
// for ARGP. When the eccentricity is determined
// by OSCELT to be zero, we know exactly what
// ARGP is supposed to be. When the eccentricity
// is very close to but not equal to zero, ARGP
// can be almost anything. For these cases all
// we can do is check ARGP+M0.
//
// Note that our path is governed by the eccentricity
// found by OSCELT, since an input eccentricity of
// zero may not be recovered as such.
//
if ((INELTS[3] > CLOSE) && (INELTS[3] < (spicelib::PI(ctx) - CLOSE))) {
//
// These are the normal inclination cases.
//
if (f64::abs((ELTS[2] - 1.0)) <= CLOSE) {
TOL = spicelib::DPMAX();
} else if (ELTS[2] > 0.00001) {
TOL = MEDIUM;
} else if (ELTS[2] > 0.000001) {
TOL = EASY;
} else if (ELTS[2] == 0.0) {
TOL = MEDIUM;
} else {
TOL = spicelib::DPMAX();
}
} else if ((INELTS[3] == 0.0) || (INELTS[3] == spicelib::PI(ctx))) {
//
// These are exceptional, but reasonably
// well-behaved inclination cases.
//
if (f64::abs((ELTS[2] - 1.0)) <= CLOSE) {
TOL = spicelib::DPMAX();
} else if (f64::abs((INELTS[2] - 1.0)) <= 0.01) {
TOL = LOOSE;
} else if (ELTS[2] > 0.000001) {
TOL = MEDIUM;
} else if (ELTS[2] == 0.0) {
TOL = MEDIUM;
} else {
TOL = spicelib::DPMAX();
}
} else {
if (f64::abs((ELTS[2] - 1.0)) <= CLOSE) {
TOL = spicelib::DPMAX();
} else if ((ELTS[2] > CLOSE) || (ELTS[2] == 0.0)) {
TOL = EASY;
} else {
TOL = spicelib::DPMAX();
}
}
//
// When the eccentricity is zero, the argument of
// periapse is absorbed into the mean anomaly. This
// only happens if OSCELT is able to determine that
// the eccentricity is zero, so test ELTS(2).
//
if (ELTS[2] == 0.0) {
XELTS[6] = (XELTS[5] + XELTS[6]);
XELTS[5] = 0.0;
}
//
// Adjust our expected value of ARGP if
// LNODE has been set to zero and if the
// eccentricity is non-zero. The sign of
// the adjustment depends on INC.
//
if ((((ELTS[4] == 0.0) && (INELTS[4] != 0.0)) && (ELTS[2] != 0.0))
&& (ELTS[3] == 0.0))
{
XELTS[5] = (XELTS[5] + (INELTS[4] - ELTS[4]));
} else if ((((ELTS[4] == 0.0) && (INELTS[4] != 0.0)) && (ELTS[2] != 0.0))
&& (ELTS[3] == spicelib::PI(ctx)))
{
XELTS[5] = (XELTS[5] + (ELTS[4] - INELTS[4]));
}
if (XELTS[5] >= spicelib::TWOPI(ctx)) {
XELTS[5] = (XELTS[5] - spicelib::TWOPI(ctx));
} else if (XELTS[5] < 0.0) {
XELTS[5] = (XELTS[5] + spicelib::TWOPI(ctx));
}
if (f64::abs((ELTS[5] - XELTS[5])) <= spicelib::PI(ctx)) {
testutil::CHCKSD(b"ARGP", ELTS[5], b"~", XELTS[5], TOL, OK, ctx)?;
} else {
if (ELTS[5] > XELTS[5]) {
XELTS[5] = (XELTS[5] + spicelib::TWOPI(ctx));
} else {
XELTS[5] = (XELTS[5] - spicelib::TWOPI(ctx));
}
testutil::CHCKSD(b"ARGP", ELTS[5], b"~", XELTS[5], TOL, OK, ctx)?;
}
SUCCES = (SUCCES && *OK);
//
// Check M0:
//
if (f64::abs((ELTS[2] - 1.0)) <= CLOSE) {
TOL = spicelib::DPMAX();
} else if (f64::abs((ELTS[2] - 1.0)) <= 0.01) {
TOL = SLOPPY;
} else if (ELTS[2] > CLOSE) {
TOL = MEDIUM;
} else if (ELTS[2] == 0.0) {
TOL = MEDIUM;
} else {
TOL = spicelib::DPMAX();
}
SUCCES = (SUCCES && *OK);
//
// If the eccentricity is zero and the inclination
// is zero or pi, the original
// longitude of the ascending node is absorbed into
// M0.
//
if ((ELTS[2] == 0.0) && (ELTS[3] == 0.0)) {
//
// Eccentricity and inclination were both
// found to be zero by OSCELT. The input
// value of the argument of periapse is going
// to be added onto the mean anomaly.
//
XELTS[6] = (XELTS[6] + INELTS[4]);
} else if ((ELTS[2] == 0.0) && (ELTS[3] == spicelib::PI(ctx))) {
//
// Eccentricity was found to be zero and
// inclination was found to be pi by OSCELT.
// The input value of the argument of periapse
// is going to be subtracted from the mean anomaly.
//
XELTS[6] = (XELTS[6] - INELTS[4]);
}
if (f64::abs((ELTS[6] - XELTS[6])) <= spicelib::PI(ctx)) {
testutil::CHCKSD(b"M0", ELTS[6], b"~", XELTS[6], TOL, OK, ctx)?;
} else {
if (ELTS[6] > XELTS[6]) {
XELTS[6] = (XELTS[6] + spicelib::TWOPI(ctx));
} else {
XELTS[6] = (XELTS[6] - spicelib::TWOPI(ctx));
}
testutil::CHCKSD(b"M0", ELTS[6], b"~", XELTS[6], TOL, OK, ctx)?;
}
SUCCES = (SUCCES && *OK);
testutil::CHCKSD(b"MU", ELTS[8], b"=", XELTS[8], TIGHT, OK, ctx)?;
//
// Now that we've obtained elements, see whether
// we can use them to obtain the state we got
// back from CONICS the first time.
//
spicelib::CONICS(ELTS.as_slice(), ET, STATE2.as_slice_mut(), ctx)?;
//
// IF ( IECC .EQ. 3 .AND.VNORM(STATE(4)).GT.1D3) THEN
// WRITE (*,*) '-----------------'
// WRITE (*,*) 'XECC(IECC) = ', XECC(IECC)
// WRITE (*,*) 'INELTS(2) = ', INELTS(2)
// WRITE (*,*) 'STATE = ', STATE
// WRITE (*,*) 'STATE2 = ', STATE2
// WRITE (*,*) 'XM0(IM0) = ', XM0(IM0)
// END IF
//
if (f64::abs((INELTS[2] - 1.0)) <= 0.01) {
TOL = VLOOSE;
} else if ((INELTS[3] == 0.0) || (INELTS[3] >= spicelib::PI(ctx))) {
TOL = MEDIUM;
} else if ((INELTS[3] <= CLOSE)
|| (INELTS[3] >= (spicelib::PI(ctx) - CLOSE)))
{
TOL = EASY;
} else {
TOL = MEDIUM;
}
testutil::CHCKAD(
b"Position",
STATE2.as_slice(),
b"~~/",
STATE.as_slice(),
3,
TOL,
OK,
ctx,
)?;
testutil::CHCKAD(
b"Velocity",
STATE2.subarray(4),
b"~~/",
STATE.subarray(4),
3,
TOL,
OK,
ctx,
)?;
if !SUCCES {
// WRITE (*, *) 'ELTS: '
// WRITE (*, '(8(1X,E25.16))') ELTS
SUCCES = true;
}
}
}
}
}
}
testutil::T_SUCCESS(OK, ctx);
Ok(())
}