From 0d5ace819208be1ad9c75a878bf4ae1dfe581a38 Mon Sep 17 00:00:00 2001
From: Helge Eichhorn <git@helgeeichhorn.de>
Date: Mon, 10 Jun 2024 15:25:34 +0200
Subject: [PATCH] Remove `lox-comms` crate (#112)

---
 Cargo.lock                       |  4 ---
 Cargo.toml                       |  1 -
 README.md                        |  5 ----
 crates/lox-comms/Cargo.toml      | 11 --------
 crates/lox-comms/src/antennae.rs | 46 --------------------------------
 crates/lox-comms/src/lib.rs      |  1 -
 6 files changed, 68 deletions(-)
 delete mode 100644 crates/lox-comms/Cargo.toml
 delete mode 100644 crates/lox-comms/src/antennae.rs
 delete mode 100644 crates/lox-comms/src/lib.rs

diff --git a/Cargo.lock b/Cargo.lock
index 49555284..e24f648f 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -375,10 +375,6 @@ dependencies = [
  "thiserror",
 ]
 
-[[package]]
-name = "lox-comms"
-version = "0.1.0"
-
 [[package]]
 name = "lox-coords"
 version = "0.1.0"
diff --git a/Cargo.toml b/Cargo.toml
index 8c1e292c..3b609c14 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -11,7 +11,6 @@ authors = ["Helge Eichhorn and the lox-space contributors"]
 
 [workspace.dependencies]
 lox-bodies = { path = "crates/lox-bodies" }
-lox-comms = { path = "crates/lox-comms" }
 lox-coords = { path = "crates/lox-coords" }
 lox-earth = { path = "crates/lox-earth" }
 lox-ephem = { path = "crates/lox-ephem" }
diff --git a/README.md b/README.md
index 905419a3..04d2ff75 100644
--- a/README.md
+++ b/README.md
@@ -20,7 +20,6 @@ and `lox-coords` provide tools for advanced users and scientific computing.
 * Python bindings for easy integration with industry standard tools.
 * Tools for working with time in UTC, TAI, UT1, TT, TCB, TCG and TDB, in wall clock, Julian and high-precision
   representations.
-* An RF communication toolkit.
 * Work with fixed and rotating frames in Cartesian and Keplerian coordinate systems.
 * Ephemeris, size and shape data for all major celestial bodies.
 * Ingest and interpolate Earth orientation parameters with ease.
@@ -43,10 +42,6 @@ representations. Offers leap-second aware conversion from UTC to continuous time
 Provides structs representing all major celestial bodies, conveniently categorized by a variety of traits exposing
 SPICE-dervied data.
 
-### lox-comms
-
-Tools for planning and analysing RF communication links between spacecraft and ground stations.
-
 ### lox-coords
 
 Tools for working with fixed and inertial coordinate systems, including transformations between them.
diff --git a/crates/lox-comms/Cargo.toml b/crates/lox-comms/Cargo.toml
deleted file mode 100644
index 7e830564..00000000
--- a/crates/lox-comms/Cargo.toml
+++ /dev/null
@@ -1,11 +0,0 @@
-[package]
-name = "lox-comms"
-version = "0.1.0"
-rust-version.workspace = true
-edition.workspace = true
-license.workspace = true
-authors.workspace = true
-
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
-
-[dependencies]
diff --git a/crates/lox-comms/src/antennae.rs b/crates/lox-comms/src/antennae.rs
deleted file mode 100644
index dc5f3c97..00000000
--- a/crates/lox-comms/src/antennae.rs
+++ /dev/null
@@ -1,46 +0,0 @@
-/*
- * Copyright (c) 2023. Helge Eichhorn and the LOX contributors
- *
- * This Source Code Form is subject to the terms of the Mozilla Public
- * License, v. 2.0. If a copy of the MPL was not distributed with this
- * file, you can obtain one at https://mozilla.org/MPL/2.0/.
- */
-
-use std::f64::consts::PI;
-
-pub trait Antenna {
-    fn gain(&self, frequency: f64) -> f64;
-    fn beam_width(&self, frequency: f64) -> f64;
-}
-
-pub struct Parabolic {
-    diameter: f64,
-    efficiency: f64,
-}
-
-impl Antenna for Parabolic {
-    fn gain(&self, frequency: f64) -> f64 {
-        let a = area(self.diameter);
-        let lambda = wavelength(frequency);
-        let g = to_db(4.0 * PI * a / lambda.powi(2));
-        g + to_db(self.efficiency)
-    }
-
-    fn beam_width(&self, frequency: f64) -> f64 {
-        70.0 * wavelength(frequency) / self.diameter
-    }
-}
-
-fn area(diameter: f64) -> f64 {
-    PI * diameter.powi(2) / 4.0
-}
-
-const C0: f64 = 2.99792458e8;
-
-fn wavelength(frequency: f64) -> f64 {
-    C0 / frequency
-}
-
-fn to_db(val: f64) -> f64 {
-    10.0 * val.log10()
-}
diff --git a/crates/lox-comms/src/lib.rs b/crates/lox-comms/src/lib.rs
deleted file mode 100644
index 31f432b8..00000000
--- a/crates/lox-comms/src/lib.rs
+++ /dev/null
@@ -1 +0,0 @@
-pub mod antennae;