EnergyProfile

A reaction’s energy along its progress: the reactants’ level, the hump of the transition state and the products’ level, in unit. Arrows mark the activation energy (activation()) and the enthalpy change (enthalpy(), negative when the reaction releases heat). A dashed guide carries the reactants’ level across. A catalyst gives a second, lower peak. Its dashed path draws at catalyst_at. Gallery scene: EnergyProfile.

EnergyProfile 3.5 sPlayUnmuteCopy render command

use fframes_kit::prelude::*;

fn figure<'a>(ui: &mut Ui<'a, '_, '_>) -> Svgr<'a> {
    ui.show(EnergyProfile {
        reactants: 50.0,
        transition: 150.0,
        products: 10.0,
        catalyst: Some(95.0),
        catalyst_at: 2.0,
        enter: Some(Create::default().into()),
        ..ui.defaults()
    })
}

API

Components are plain structs. Set the fields you need and fill the rest with ..ui.defaults(): the defaults below come from the current theme (theme. values are fields of Theme).

EnergyProfile

Field	Type	Default	Description
reactants	f64	50.0	Energy of the reactants, the flat start of the path, in unit.
transition	f64	150.0	Energy at the top of the hump (the transition state), in unit; the activation energy is this less reactants.
products	f64	10.0	Energy of the products, the flat end of the path, in unit; the enthalpy change is this less reactants.
catalyst	Option<f64>	None	Energy at the top of a lower catalysed path, drawn dashed; None for no catalyst.
catalyst_at	f32	0.0	Seconds after the container’s start when the catalysed path draws.
unit	Cow<str>	Cow::Borrowed("kJ/mol")	Energy unit written after the Ea and ∆H values.
center	(f64, f64)	(0.0, 0.0)	The middle of the plot, in units of ui.space.
width	f32	1100.0	Width of the plot in pixels, axes included.
height	f32	620.0	Height of the plot in pixels, axes included.
labels	bool	true	Draws the Ea and ∆H arrows and the level and axis names; false for the bare path.
axis_color	Color	theme.colors.muted	Colour of the axes and the dashed level guide.
path_color	Color	theme.colors.accent	Colour of the energy path.
catalyst_color	Color	Color::hex("#69db7c")	Colour of the catalysed path.
arrow_color	Color	theme.colors.highlight	Colour of the Ea and ∆H arrows.
text_color	Color	theme.colors.text	Colour of the labels.
stroke_width	f32	theme.stroke.regular	Width in pixels of the energy path lines.
enter	Option<EnterAnim>	None	How the axes and the path draw; None shows them from the start.
exit	Option<ExitAnim>	None	How the axes and the path leave at the end of the container; None stays.
parts_enter	Option<FadeIn>	None	Fade in of the arrows and labels; None for none.
parts_exit	Option<FadeOut>	None	Fade out of the arrows and labels before the end; None for none.

Methods:

• fn activation(&self) -> f64: The activation energy: the transition state over the reactants.
• fn enthalpy(&self) -> f64: The enthalpy change: the products less the reactants, negative when it releases heat.

Feature chemistry · Source