Replace the C++ implementation with the Rust port

The Rust port (formerly gipfel-rs) is now the official successor to the
FLTK/GSL C++ code base. This squashes the port into a single commit and
removes the C++ sources (they remain in the git history below).

Layout:
  crates/gipfel-core  headless core: hills, panorama geometry, projections
                      (maxima-generated derivatives), pure-Rust LM fit,
                      gipfel: JPEG comment + EXIF I/O, profiles, stitching
  crates/gipfel-cli   command-line tools (export, info, stitch, profiles)
  crates/gipfel-app   Cosmic DE (libcosmic) GUI, binary name `gipfel`
  codegen/            maxima scripts + regen.sh for the projection code
  tests/              golden files + C++ reference harnesses (historical)

The original README is kept for now; it will be updated to describe the
Rust build. gipfel.dat, AUTHORS, ChangeLog and NEWS are unchanged.

1 files changed, 10 insertions, 0 deletions

diff --git a/tests/harness/build/cyl_funcs.cxx b/tests/harness/build/cyl_funcs.cxx
new file mode 100644
index 0000000..5143ba5
--- /dev/null
+++ b/tests/harness/build/cyl_funcs.cxx
@@ -0,0 +1,10 @@
+double cyl_mac_x ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 ; _1 = tan(c_nick) ; _2 = tan(m_nick) ; return (cos(c_tilt)*(m_view-c_view)-(sin(c_tilt)*(_2-_1))/(_1*_2+1))*scale ; } 
+double cyl_mac_y ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 ; _1 = tan(c_nick) ; _2 = tan(m_nick) ; return ((-sin(c_tilt)*(m_view-c_view))-(cos(c_tilt)*(_2-_1))/(_1*_2+1))*scale ; } 
+double cyl_mac_x_dc_view ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { return -cos(c_tilt)*scale ; } 
+double cyl_mac_x_dc_nick ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 , _3 , _4 , _5 ; _1 = pow(sec(c_nick),2) ; _2 = sin(c_tilt) ; _3 = tan(m_nick) ; _4 = tan(c_nick) ; _5 = _4*_3+1 ; return ((_1*_2*_3*(_3-_4))/pow(_5,2)+(_1*_2)/_5)*scale ; } 
+double cyl_mac_x_dc_tilt ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 ; _1 = tan(c_nick) ; _2 = tan(m_nick) ; return ((-sin(c_tilt)*(m_view-c_view))-(cos(c_tilt)*(_2-_1))/(_1*_2+1))*scale ; } 
+double cyl_mac_x_dscale ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 ; _1 = tan(c_nick) ; _2 = tan(m_nick) ; return cos(c_tilt)*(m_view-c_view)-(sin(c_tilt)*(_2-_1))/(_1*_2+1) ; } 
+double cyl_mac_y_dc_view ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { return sin(c_tilt)*scale ; } 
+double cyl_mac_y_dc_nick ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 , _3 , _4 , _5 ; _1 = pow(sec(c_nick),2) ; _2 = cos(c_tilt) ; _3 = tan(m_nick) ; _4 = tan(c_nick) ; _5 = _4*_3+1 ; return ((_1*_2*_3*(_3-_4))/pow(_5,2)+(_1*_2)/_5)*scale ; } 
+double cyl_mac_y_dc_tilt ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 ; _1 = tan(c_nick) ; _2 = tan(m_nick) ; return ((sin(c_tilt)*(_2-_1))/(_1*_2+1)-cos(c_tilt)*(m_view-c_view))*scale ; } 
+double cyl_mac_y_dscale ( double c_view, double c_nick, double c_tilt, double scale, double k0, double k1, double x0, double m_view, double m_nick ) { double _1 , _2 ; _1 = tan(c_nick) ; _2 = tan(m_nick) ; return (-sin(c_tilt)*(m_view-c_view))-(cos(c_tilt)*(_2-_1))/(_1*_2+1) ; }