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mitchell
2026-06-04 19:08:13 -05:00
commit 0102ffa18d
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/target
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[package]
name = "new_plaster_calc"
version = "0.1.0"
edition = "2024"
[dependencies]
clap = { version = "4.0", features = ["derive"] }
colored = "3.1.1"
src/main.rs
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use clap::{Parser, ValueEnum};
use colored::*;
/// Concentration of plaster slurry
/// in parts of water per 100 parts plaster by weight
const DEFAULT_CONCENTRATION: f64 = 70.0;
/// Density of plaster slurry (g/L).
const DEFAULT_DENSITY: f64 = 1674.0;
const PERCENT: f64 = 100.0;
/// The amount of slack added
const SLACK: f64 = 0.10;
/// The multiplier for the water that becomes part of the mold
///
/// 18 parts water for every part plaster becomes part
/// of the mold.
const DRY_WEIGHT_MULTIPLIER: f64 = 1.18;
// Color and Styling Configurations
const COLOR_PARAM: Color = Color::Yellow;
const COLOR_PLASTER: Color = Color::Green;
const COLOR_WATER: Color = Color::Blue;
const COLOR_TARGET: Color = Color::Magenta;
#[derive(ValueEnum, Clone, Copy, Debug, PartialEq, Eq)]
enum ColorChoice {
Never,
Auto,
Always,
}
#[derive(Parser, Debug)]
#[command(author, version, about = "Calculates plaster mixing weights", long_about = None)]
struct Args {
/// Volume in cm³ or ml
volume: f64,
/// Concentration (parts water per 100 parts plaster by weight)
#[arg(short, long, default_value_t = 70.0)]
concentration: f64,
/// Density in grams per liter (defaults to 1674 if concentration is 70)
#[arg(short, long)]
density: Option<f64>,
/// Control terminal color output
#[arg(long, default_value = "auto")]
color: ColorChoice,
}
fn main() {
let args = Args::parse();
// Configure color output globally based on the CLI argument
match args.color {
ColorChoice::Always => colored::control::set_override(true),
ColorChoice::Never => colored::control::set_override(false),
ColorChoice::Auto => {} // Respects standard stream capabilities (default)
}
// Determine density and target wet weight
let density = args.density.or_else(|| {
if (args.concentration - DEFAULT_CONCENTRATION).abs() < f64::EPSILON {
Some(DEFAULT_DENSITY)
} else {
None
}
});
let target_wet_weight = density.map(|d| (args.volume / 1000.0) * d);
let (plaster_nominal, water_nominal) = match target_wet_weight {
Some(wet_weight) => {
let plaster = wet_weight / (1.0 + (args.concentration / PERCENT));
let water = plaster * (args.concentration / PERCENT);
(Some(plaster), Some(water))
}
None => (None, None),
};
// Output Header
println!("--- Plaster Calculation Parameters ---");
println!(
"Volume: {}ml",
format!("{}", args.volume).color(COLOR_PARAM).bold()
);
println!(
"Concentration: {}g water per 100g plaster",
format!("{}", args.concentration).color(COLOR_PARAM).bold()
);
let density_str = density.map_or("Not provided/calculated".to_string(), |d| {
format!("{}g/L", format!("{}", d).color(COLOR_PARAM).bold())
});
println!("Density: {}", density_str);
println!("--------------------------------------");
// Output Mixing Amounts and Target Weights
if let (Some(p_nom), Some(w_nom)) = (plaster_nominal, water_nominal) {
let p_slack = p_nom * (1.0 + SLACK);
let w_slack = w_nom * (1.0 + SLACK);
let dry_weight = p_nom * DRY_WEIGHT_MULTIPLIER;
println!("Mixing Amounts:");
println!(" Nominal:");
println!(
" Plaster: {}g",
format!("{:.1}", p_nom).color(COLOR_PLASTER)
);
println!(
" Water: {}g",
format!("{:.1}", w_nom).color(COLOR_WATER)
);
println!(" {:2}% Slack:", SLACK * PERCENT);
println!(
" Plaster: {}g",
format!("{:.1}", p_slack).color(COLOR_PLASTER).bold()
);
println!(
" Water: {}g",
format!("{:.1}", w_slack).color(COLOR_WATER).bold()
);
println!("\nTarget Weights:");
println!(
" Wet Cast: {}g",
format!("{:.1}", target_wet_weight.unwrap())
.color(COLOR_TARGET)
.bold()
);
println!(
" Dry Cast: {}g",
format!("{:.1}", dry_weight).color(COLOR_TARGET).bold()
);
} else {
println!("{}",
"Target weights and mixing amounts cannot be calculated. Please specify a density with `-d` for any non-70 concentration.".red()
);
}
}