From 375d87a9b0ec1cf2fffd705adb870c86144d2400 Mon Sep 17 00:00:00 2001 From: Johannes Hofmann Date: Mon, 26 Oct 2026 20:05:20 +0100 Subject: 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. --- codegen/lsq_cylindrical.mac | 38 ++++++++++++++++++++++++++++++++++++++ 1 file changed, 38 insertions(+) create mode 100644 codegen/lsq_cylindrical.mac (limited to 'codegen/lsq_cylindrical.mac') diff --git a/codegen/lsq_cylindrical.mac b/codegen/lsq_cylindrical.mac new file mode 100644 index 0000000..316d3f9 --- /dev/null +++ b/codegen/lsq_cylindrical.mac @@ -0,0 +1,38 @@ +/* + * Copyright 2006-2009 Johannes Hofmann + */ + +/* + * cylindrical projection model + */ + +x : m_view - c_view$ +y : tan(c_pitch - m_elev)$ +x_rot : y * sin(c_roll) + x * cos(c_roll)$ +y_rot : y * cos(c_roll) - x * sin(c_roll)$ +x_scale : x_rot * scale$ +y_scale : y_rot * scale$ + +/* + * Some mangling for C code generation + */ + +load("expr2rust.mac")$ + +x_expand : trigexpand(x_scale)$ +y_expand : trigexpand(y_scale)$ + +args: "c_view: f64, c_pitch: f64, c_roll: f64, scale: f64, k0: f64, k1: f64, x0: f64, m_view: f64, m_elev: f64"$ + +expr2rust("mac_x", args, x_expand)$ +expr2rust("mac_y", args, y_expand)$ + +expr2rust("mac_x_dc_view", args, diff(x_expand, c_view))$ +expr2rust("mac_x_dc_pitch", args, diff(x_expand, c_pitch))$ +expr2rust("mac_x_dc_roll", args, diff(x_expand, c_roll))$ +expr2rust("mac_x_dscale", args, diff(x_expand, scale))$ +expr2rust("mac_y_dc_view", args, diff(y_expand, c_view))$ +expr2rust("mac_y_dc_pitch", args, diff(y_expand, c_pitch))$ +expr2rust("mac_y_dc_roll", args, diff(y_expand, c_roll))$ +expr2rust("mac_y_dscale", args, diff(y_expand, scale))$ + -- cgit v1.2.3