88 lines
3.7 KiB
Rust
88 lines
3.7 KiB
Rust
//! This example demonstrates how scatter plots are to be used. For more general
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//! features of the libray, see the line_plots example.
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use imgui::{im_str, CollapsingHeader, Condition, Ui, Window};
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use implot::{push_style_var_f32, push_style_var_u32, Marker, Plot, PlotScatter, StyleVar};
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mod support;
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fn show_basic_plot(ui: &Ui) {
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ui.text(im_str!(
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"This header just draws a scatter plot with as little code as possible."
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));
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let content_width = ui.window_content_region_width();
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Plot::new("Simple scatter plot")
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// The size call could also be omitted, though the defaults don't consider window
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// width, which is why we're not doing so here.
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.size(content_width, 300.0)
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.build(|| {
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// If this is called outside a plot build callback, the program will panic.
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let x_positions = vec![0.1, 0.2, 0.1, 0.5, 0.9];
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let y_positions = vec![0.1, 0.1, 0.3, 0.3, 0.9];
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PlotScatter::new("legend label").plot(&x_positions, &y_positions);
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});
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}
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fn show_custom_markers_plot(ui: &Ui) {
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ui.text(im_str!(
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"This header just plots a line with as little code as possible."
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));
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let content_width = ui.window_content_region_width();
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Plot::new("Simple scatter plot")
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// The size call could also be omitted, though the defaults don't consider window
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// width, which is why we're not doing so here.
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.size(content_width, 300.0)
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.build(|| {
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// Change to cross marker for one scatter plot call
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let x_positions = vec![0.1, 0.2, 0.1, 0.5, 0.9];
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let y_positions = vec![0.1, 0.1, 0.3, 0.3, 0.9];
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let markerchoice = push_style_var_u32(&StyleVar::Marker, Marker::CROSS.bits());
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PlotScatter::new("legend label 1").plot(&x_positions, &y_positions);
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markerchoice.pop();
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// One can combine things like marker size and markor choice
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let x_positions = vec![0.4, 0.1];
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let y_positions = vec![0.5, 0.3];
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let marker_choice = push_style_var_u32(&StyleVar::Marker, Marker::DIAMOND.bits());
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let marker_size = push_style_var_f32(&StyleVar::MarkerSize, 12.0);
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PlotScatter::new("legend label 2").plot(&x_positions, &y_positions);
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// TODO(4bb4) check if these have to be in reverse push order
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marker_size.pop();
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marker_choice.pop();
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});
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}
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fn main() {
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let system = support::init(file!());
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let mut showing_demo = false;
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system.main_loop(move |_, ui| {
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Window::new(im_str!("Line plots example"))
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.size([430.0, 450.0], Condition::FirstUseEver)
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.build(ui, || {
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ui.text(im_str!("Hello from implot-rs!"));
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ui.text_wrapped(im_str!(
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"The headers here demo the scatter plotting features of the library. \
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Have a look at the example source code to see how they are implemented.\n\
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Check out the demo from ImPlot itself first \
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(by enabling the 'Show demo' checkbox) for instructions \
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on how to interact with ImPlot plots."
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));
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ui.checkbox(im_str!("Show demo"), &mut showing_demo);
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// Show individual examples in collapsed headers
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if CollapsingHeader::new(im_str!("Basic scatter plot")).build(&ui) {
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show_basic_plot(&ui);
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}
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if CollapsingHeader::new(im_str!("Custom markers")).build(&ui) {
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show_custom_markers_plot(&ui);
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}
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});
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if showing_demo {
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implot::show_demo_window(&mut showing_demo);
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}
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});
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}
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