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Added support for linked axes. See comments.

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This commit adds support for linked axes between plots. One can specify
such linked limits using the new `linked_x_axis()` function (and the
variants for the Y axes) by specifying an `Rc<RefCell<ImPlotRange>>`
value, and passing clones of the same `Rc` to other plots.

The values within those `Rc` need to be kept persistent between frames,
hence the way to use this functionality is to keep a clone of the `Rc`
outside the frame-drawing function as part of the application state.

The regular limit setting API is unaffected.
This commit is contained in:
4bb4 2021-05-30 11:45:16 +02:00
parent ad80781f4d
commit 06cc3061c1
5 changed files with 570 additions and 391 deletions
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80
implot-examples/examples-shared/src/lib.rs
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@ -9,44 +9,64 @@ pub mod text_plots;
use imgui::{im_str, Condition, Ui, Window};
use implot::PlotUi;
pub fn show_demos(ui: &Ui, plot_ui: &PlotUi) {
Window::new(im_str!("implot-rs demo"))
.size([430.0, 450.0], Condition::FirstUseEver)
.build(ui, || {
ui.text(im_str!("Hello from implot-rs!"));
ui.text_wrapped(im_str!(
"The headers here demo the plotting features of the library.\
/// State of the demo code
pub struct DemoState {
/// State of the line plots demo
line_plots: line_plots::LinePlotDemoState,
}
impl DemoState {
/// Create a new demo code state object with default values in it.
pub fn new() -> Self {
Self {
line_plots: line_plots::LinePlotDemoState::new(),
}
}
/// Show all the demos
pub fn show_demos(&mut self, ui: &Ui, plot_ui: &PlotUi) {
// Most of the demos are currently still stateless, so the code here mostly just calls into
// the modules. The line plots demo is stateful though. Things will be refactored soon to
// make all the individual demos stateful to unify things more.
Window::new(im_str!("implot-rs demo"))
.size([430.0, 450.0], Condition::FirstUseEver)
.build(ui, || {
ui.text(im_str!("Hello from implot-rs!"));
ui.text_wrapped(im_str!(
"The headers here demo the plotting features of the library.\
Have a look at the example source code to see how they are implemented.\n\
Check out the demo from ImPlot itself first for instructions on how to\
interact with ImPlot plots."
));
));
ui.separator();
ui.text(im_str!("Bar plots:"));
bar_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Bar plots:"));
bar_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Line plots:"));
line_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Line plots:"));
// The line plots demo is stateful
self.line_plots.show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Scatter plots:"));
scatter_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Scatter plots:"));
scatter_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Text plots:"));
text_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Text plots:"));
text_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Stairs plots:"));
stairs_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Stairs plots:"));
stairs_plots::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Heatmaps:"));
heatmaps::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Heatmaps:"));
heatmaps::show_demo_headers(ui, plot_ui);
ui.separator();
ui.text(im_str!("Stem plots:"));
stem_plots::show_demo_headers(ui, plot_ui);
});
ui.separator();
ui.text(im_str!("Stem plots:"));
stem_plots::show_demo_headers(ui, plot_ui);
});
}
}