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egui_plot: Improve default formatter of tick-marks (#4738)

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The default `Plot` formatter now picks precision intelligently based on
zoom level. The width of the Y axis are is now much smaller by default,
and expands as needed.

Also deprecates `Plot::y_axis_with`; replaced with `y_axis_min_width`.
This commit is contained in:
Emil Ernerfeldt
2024-06-30 14:20:41 +02:00
committed by GitHub
parent 17fd305967
commit b6fd1cfc99
6 changed files with 121 additions and 67 deletions
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11
crates/egui_demo_lib/src/demo/plot_demo.rs
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@@ -277,7 +277,6 @@ impl LineDemo {
};
let mut plot = Plot::new("lines_demo")
.legend(Legend::default())
.y_axis_width(2)
.show_axes(self.show_axes)
.show_grid(self.show_grid);
if self.square {
@@ -437,7 +436,6 @@ impl LegendDemo {
ui.end_row();
});
let legend_plot = Plot::new("legend_demo")
.y_axis_width(2)
.legend(config.clone())
.data_aspect(1.0);
legend_plot
@@ -530,7 +528,7 @@ impl CustomAxesDemo {
100.0 * y
}
let time_formatter = |mark: GridMark, _digits, _range: &RangeInclusive<f64>| {
let time_formatter = |mark: GridMark, _range: &RangeInclusive<f64>| {
let minutes = mark.value;
if minutes < 0.0 || 5.0 * MINS_PER_DAY <= minutes {
// No labels outside value bounds
@@ -544,7 +542,7 @@ impl CustomAxesDemo {
}
};
let percentage_formatter = |mark: GridMark, _digits, _range: &RangeInclusive<f64>| {
let percentage_formatter = |mark: GridMark, _range: &RangeInclusive<f64>| {
let percent = 100.0 * mark.value;
if is_approx_zero(percent) {
String::new() // skip zero
@@ -575,8 +573,7 @@ impl CustomAxesDemo {
let y_axes = vec![
AxisHints::new_y()
.label("Percent")
.formatter(percentage_formatter)
.max_digits(4),
.formatter(percentage_formatter),
AxisHints::new_y()
.label("Absolute")
.placement(egui_plot::HPlacement::Right),
@@ -673,7 +670,6 @@ impl LinkedAxesDemo {
.data_aspect(2.0)
.width(150.0)
.height(250.0)
.y_axis_width(2)
.y_axis_label("y")
.y_axis_position(egui_plot::HPlacement::Right)
.link_axis(link_group_id, self.link_x, self.link_y)
@@ -962,7 +958,6 @@ impl ChartsDemo {
Plot::new("Normal Distribution Demo")
.legend(Legend::default())
.clamp_grid(true)
.y_axis_width(2)
.allow_zoom(self.allow_zoom)
.allow_drag(self.allow_drag)
.allow_scroll(self.allow_scroll)