ActionPotential

ActionPotential traces the membrane potential of an action potential on axes of time (0 to 6 ms) against millivolts, drawing it in duration seconds from delay, a dot at its head. The dashed threshold (-55 mV) and resting (-70 mV) lines are there from the start, and each phase is named as the trace reaches it: resting potential, stimulus, depolarization, the peak, repolarization and hyperpolarization. membrane_potential(ms) gives the curve. Gallery scene: ActionPotential.

ActionPotential 7 sPlayUnmuteCopy render command

use fframes_kit::prelude::*;
use fframes_kit::kits::biology::membrane_potential;

assert_eq!(membrane_potential(0.0), -70.0);
assert!((membrane_potential(2.3) - 40.0).abs() < 1e-6); // the peak

fn spike<'a>(ui: &mut Ui<'a, '_, '_>) -> Svgr<'a> {
    ui.show(ActionPotential { duration: 3.0, ..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).

ActionPotential

Field	Type	Default	Description
delay	f32	0.0	Seconds after the container’s start before the trace begins to draw.
duration	f32	5.0	Seconds the trace takes to draw from 0 to 6 ms.
center	(f64, f64)	(0.0, -0.3)	The middle of the axes, in units of ui.space.
x_length	f64	9.0	Width of the axes, in units of ui.space.
y_length	f64	5.2	Height of the axes, in units of ui.space.
trace_color	Color	Color::hex("#ffd43b")	Colour of the trace and the dot at its head.
threshold_color	Color	Color::hex("#ff8787")	Colour of the dashed threshold line (-55 mV).
axis_color	Color	theme.colors.muted	Colour of the axes and the dashed resting line (-70 mV).
label_style	TextStyle	label_style	The font of the axis labels and numbers: family, size in pixels and weight.
phase_style	TextStyle	theme.typography.caption	The font of the phase names along the trace: family, size in pixels and weight.
text_color	Color	theme.colors.text	Colour of the phase names.
enter	Option<FadeIn>	None	Fade in at the start; None for none.
exit	Option<FadeOut>	None	Fade out before the end; None for none.

Feature biology · Source