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//
// GENERATED FILE
//
use super::*;
use f2rust_std::*;
const TIGHT: f64 = 0.00000000000001;
const UBEL: i32 = 9;
const MSGLEN: i32 = 400;
const NRANDM: i32 = 5000;
//$Procedure F_NPELPT ( NPELPT tests )
pub fn F_NPELPT(OK: &mut bool, ctx: &mut Context) -> f2rust_std::Result<()> {
let mut TITLE = [b' '; MSGLEN as usize];
let mut CENTER = StackArray::<f64, 3>::new(1..=3);
let mut DIST: f64 = 0.0;
let mut ELLIPS = StackArray::<f64, 9>::new(1..=UBEL);
let mut POINT = StackArray::<f64, 3>::new(1..=3);
let mut PNEAR = StackArray::<f64, 3>::new(1..=3);
let mut SFACTR: f64 = 0.0;
let mut SMAJOR = StackArray::<f64, 3>::new(1..=3);
let mut SMINOR = StackArray::<f64, 3>::new(1..=3);
let mut V1 = StackArray::<f64, 3>::new(1..=3);
let mut V2 = StackArray::<f64, 3>::new(1..=3);
let mut XDIST: f64 = 0.0;
let mut XPT = StackArray::<f64, 3>::new(1..=3);
let mut I: i32 = 0;
let mut SEED: i32 = 0;
let mut VALPT: bool = false;
//
// Other functions
//
//
// Local Parameters
//
//
// Local Variables
//
//
// Saved values
//
//
// Initial values
//
//
// In this test family, we encapsulate some of the geometric
// tests within functions defined in this file. The function
//
// T_ISNPEL
//
// tests whether a 3-dpoint is on a specified ellipse embedded in
// 3-dimensional space:
//
// - A point P = (p1,p2,p3) is "on" the ellipse with center C
// and semi-axes SMAJOR and SMINOR if P lies in the plane
// of the ellipse and if the "level surface parameter"
//
// lambda = x**2/A**2 + y**2/B**2
//
// is sufficiently close to 1, where
//
// A = ||SMAJOR||
// B = ||SMINOR||
//
// x = <P-C, SMAJOR/A> * SMAJOR / A
// y = <P-C, SMINOR/B> * SMINOR / B
//
//
// The function
//
// T_ISNPEL
//
// test whether the near point found by NPELPT has the property
// that the outward normal at the near point can be extended to
// intersect the input line at right angles.
//
// T_ISNPEL also checks the distance of the near point from the line:
// the distance is checked against the value obtained from NPLNPT.
//
//
//
// Open the test family.
//
testutil::TOPEN(b"F_NPELPT", ctx)?;
//
// Run some simple tests where the correct results can be
// determined by inspection.
//
//
// --- Case: ------------------------------------------------------
//
fstr::assign(
&mut TITLE,
b"Ellipse is unit circle in x-y plane. Point is (1,0,1)",
);
spicelib::REPMI(&TITLE.clone(), b"#", I, &mut TITLE, ctx);
testutil::TCASE(&TITLE, ctx)?;
spicelib::VPACK(1.0, 0.0, 1.0, POINT.as_slice_mut());
spicelib::VPACK(1.0, 0.0, 0.0, V1.as_slice_mut());
spicelib::VPACK(0.0, 1.0, 0.0, V2.as_slice_mut());
spicelib::VPACK(0.0, 0.0, 0.0, CENTER.as_slice_mut());
spicelib::CGV2EL(
CENTER.as_slice(),
V1.as_slice(),
V2.as_slice(),
ELLIPS.as_slice_mut(),
ctx,
)?;
spicelib::NPELPT(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice_mut(),
&mut DIST,
ctx,
)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
//
// Test results.
//
spicelib::VEQU(V1.as_slice(), XPT.as_slice_mut());
XDIST = 1.0;
testutil::CHCKAD(
b"PNEAR",
PNEAR.as_slice(),
b"~~/",
XPT.as_slice(),
3,
TIGHT,
OK,
ctx,
)?;
testutil::CHCKSD(b"DIST", DIST, b"~", XDIST, 0.0, OK, ctx)?;
//
// --- Case: ------------------------------------------------------
//
fstr::assign(
&mut TITLE,
b"Ellipse is unit circle in z=5 plane. Point is (4,0,1)",
);
spicelib::REPMI(&TITLE.clone(), b"#", I, &mut TITLE, ctx);
testutil::TCASE(&TITLE, ctx)?;
spicelib::VPACK(4.0, 0.0, 1.0, POINT.as_slice_mut());
spicelib::VPACK(1.0, 0.0, 0.0, V1.as_slice_mut());
spicelib::VPACK(0.0, 1.0, 0.0, V2.as_slice_mut());
spicelib::VPACK(0.0, 0.0, 5.0, CENTER.as_slice_mut());
spicelib::CGV2EL(
CENTER.as_slice(),
V1.as_slice(),
V2.as_slice(),
ELLIPS.as_slice_mut(),
ctx,
)?;
spicelib::NPELPT(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice_mut(),
&mut DIST,
ctx,
)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
//
// Test results.
//
spicelib::VPACK(1.0, 0.0, 5.0, XPT.as_slice_mut());
XDIST = 5.0;
testutil::CHCKAD(
b"PNEAR",
PNEAR.as_slice(),
b"~~/",
XPT.as_slice(),
3,
TIGHT,
OK,
ctx,
)?;
testutil::CHCKSD(b"DIST", DIST, b"~", XDIST, 0.0, OK, ctx)?;
//
// --- Case: ------------------------------------------------------
//
fstr::assign(
&mut TITLE,
b"Ellipse is unit circle in z=5 plane. Point is (0,0,5)",
);
spicelib::REPMI(&TITLE.clone(), b"#", I, &mut TITLE, ctx);
testutil::TCASE(&TITLE, ctx)?;
spicelib::VPACK(0.0, 0.0, 5.0, POINT.as_slice_mut());
spicelib::VPACK(1.0, 0.0, 0.0, V1.as_slice_mut());
spicelib::VPACK(0.0, 1.0, 0.0, V2.as_slice_mut());
spicelib::VPACK(0.0, 0.0, 5.0, CENTER.as_slice_mut());
spicelib::CGV2EL(
CENTER.as_slice(),
V1.as_slice(),
V2.as_slice(),
ELLIPS.as_slice_mut(),
ctx,
)?;
spicelib::NPELPT(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice_mut(),
&mut DIST,
ctx,
)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
//
// Test results.
//
// For this case, we don't know which point will be selected
// as the near point. Just check that it's a valid solution.
//
//
VALPT = T_ISNPEL(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice(),
DIST,
OK,
ctx,
)?;
testutil::CHCKSL(b"Is near point on ellipse?", VALPT, true, OK, ctx)?;
//
// Now for some more difficult cases. We'll generate the ellipses
// and planes using random numbers. There are four components to
// generate:
//
// - random points
// - random ellipse axes
// - random ellipse centers
// - random scale factors for the ellipse and point; these are
// used to create a wide range of scales
//
SEED = -1;
{
let m1__: i32 = 1;
let m2__: i32 = NRANDM;
let m3__: i32 = 1;
I = m1__;
for _ in 0..((m2__ - m1__ + m3__) / m3__) as i32 {
//
// --- Case: ------------------------------------------------------
//
//
// Get a scale factor.
//
SFACTR = f64::powf(10.0, testutil::T_RANDD(-290.0, 290.0, &mut SEED, ctx)?);
//
// Make up ellipse vectors.
//
for J in 1..=3 {
CENTER[J] = (SFACTR * testutil::T_RANDD(-1.0, 1.0, &mut SEED, ctx)?);
V1[J] = (SFACTR * testutil::T_RANDD(-1.0, 1.0, &mut SEED, ctx)?);
V2[J] = (SFACTR * testutil::T_RANDD(-1.0, 1.0, &mut SEED, ctx)?);
}
//
// Pack the ellipse.
//
spicelib::CGV2EL(
CENTER.as_slice(),
V1.as_slice(),
V2.as_slice(),
ELLIPS.as_slice_mut(),
ctx,
)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
//
// Find the semi-axes of this ellipse.
//
spicelib::SAELGV(
V1.as_slice(),
V2.as_slice(),
SMAJOR.as_slice_mut(),
SMINOR.as_slice_mut(),
ctx,
)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
//
// We also need a point.
//
POINT[1] = (SFACTR * testutil::T_RANDD(-1.0, 1.0, &mut SEED, ctx)?);
POINT[2] = (SFACTR * testutil::T_RANDD(-1.0, 1.0, &mut SEED, ctx)?);
POINT[3] = (SFACTR * testutil::T_RANDD(-1.0, 1.0, &mut SEED, ctx)?);
fstr::assign(&mut TITLE, b"NPELPT Random case #. CENTER = (#, #, #); V1 = (#, #, #); V2 = (#, #, #); POINT = (#, #, #)");
spicelib::REPMI(&TITLE.clone(), b"#", I, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", CENTER[1], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", CENTER[2], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", CENTER[3], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", V1[1], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", V1[2], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", V1[3], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", V2[1], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", V2[2], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", V2[3], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", POINT[1], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", POINT[2], 14, &mut TITLE, ctx);
spicelib::REPMD(&TITLE.clone(), b"#", POINT[3], 14, &mut TITLE, ctx);
testutil::TCASE(&TITLE, ctx)?;
//
// Cross our fingers and toes and let 'er rip.
//
spicelib::NPELPT(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice_mut(),
&mut DIST,
ctx,
)?;
testutil::CHCKXC(false, b" ", OK, ctx)?;
//
// Make sure point we found lies on the ellipse.
//
VALPT = T_ISNPEL(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice(),
DIST,
OK,
ctx,
)?;
testutil::CHCKSL(b"Is near point on ellipse?", VALPT, true, OK, ctx)?;
I += m3__;
}
}
//
// NPELPT error cases:
//
//
// --- Case: ------------------------------------------------------
//
testutil::TCASE(b"NPELPT: ellipse has one zero-length axis.", ctx)?;
spicelib::FILLD(10.0, 3, POINT.as_slice_mut());
spicelib::VPACK(0.0, 0.0, 0.0, V1.as_slice_mut());
spicelib::VPACK(0.0, 1.0, 0.0, V2.as_slice_mut());
spicelib::VPACK(2.0, 2.0, 2.0, CENTER.as_slice_mut());
spicelib::CGV2EL(
CENTER.as_slice(),
V1.as_slice(),
V2.as_slice(),
ELLIPS.as_slice_mut(),
ctx,
)?;
spicelib::NPELPT(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice_mut(),
&mut DIST,
ctx,
)?;
testutil::CHCKXC(true, b"SPICE(DEGENERATECASE)", OK, ctx)?;
//
// Swap the semi-axes and repeat.
//
spicelib::CGV2EL(
CENTER.as_slice(),
V2.as_slice(),
V1.as_slice(),
ELLIPS.as_slice_mut(),
ctx,
)?;
spicelib::NPELPT(
POINT.as_slice(),
ELLIPS.as_slice(),
PNEAR.as_slice_mut(),
&mut DIST,
ctx,
)?;
testutil::CHCKXC(true, b"SPICE(DEGENERATECASE)", OK, ctx)?;
//
// Close out the test family.
//
testutil::T_SUCCESS(OK, ctx);
Ok(())
}