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// SPDX-License-Identifier: MIT OR Apache-2.0
//
// Copyright 2022-2026, John McNamara, jmcnamara@cpan.org
//! A demo of the various Excel chart data tools that are available via the
//! `rust_xlsxwriter` library.
use rust_xlsxwriter::{
Chart, ChartDataLabel, ChartErrorBars, ChartErrorBarsType, ChartMarker, ChartSolidFill,
ChartTrendline, ChartTrendlineType, ChartType, Format, Workbook, XlsxError,
};
fn main() -> Result<(), XlsxError> {
let mut workbook = Workbook::new();
let worksheet = workbook.add_worksheet();
let bold = Format::new().set_bold();
// Add the worksheet data that the charts will refer to.
worksheet.write_with_format(0, 0, "Number", &bold)?;
worksheet.write_with_format(0, 1, "Data 1", &bold)?;
worksheet.write_with_format(0, 2, "Data 2", &bold)?;
let data = [
[2, 3, 4, 5, 6, 7],
[10, 40, 50, 20, 10, 50],
[30, 60, 70, 50, 40, 30],
];
for (col_num, col_data) in data.iter().enumerate() {
for (row_num, row_data) in col_data.iter().enumerate() {
worksheet.write(row_num as u32 + 1, col_num as u16, *row_data)?;
}
}
// -----------------------------------------------------------------------
// Trendline example
// -----------------------------------------------------------------------
// Create a new Line chart.
let mut chart = Chart::new(ChartType::Line);
// Configure the first series with a polynomial trendline.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$B$2:$B$7")
.set_trendline(ChartTrendline::new().set_type(ChartTrendlineType::Polynomial(3)));
// Configure the second series with a linear trendline.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$C$2:$C$7")
.set_trendline(ChartTrendline::new().set_type(ChartTrendlineType::Linear));
// Add a chart title.
chart.title().set_name("Chart with Trendlines");
// Add the chart to the worksheet.
worksheet.insert_chart_with_offset(1, 3, &chart, 25, 10)?;
// -----------------------------------------------------------------------
// Data Labels and Markers example.
// -----------------------------------------------------------------------
// Create a new Line chart.
let mut chart = Chart::new(ChartType::Line);
// Configure the first series with data labels and markers.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$B$2:$B$7")
.set_data_label(ChartDataLabel::new().show_value())
.set_marker(ChartMarker::new().set_automatic());
// Configure the second series as default.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$C$2:$C$7");
// Add a chart title.
chart.title().set_name("Chart with Data Labels and Markers");
// Add the chart to the worksheet.
worksheet.insert_chart_with_offset(17, 3, &chart, 25, 10)?;
// -----------------------------------------------------------------------
// Error Bar example.
// -----------------------------------------------------------------------
// Create a new Line chart.
let mut chart = Chart::new(ChartType::Line);
// Configure the first series with error bars.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$B$2:$B$7")
.set_y_error_bars(ChartErrorBars::new().set_type(ChartErrorBarsType::StandardError));
// Configure the second series as default.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$C$2:$C$7");
// Add a chart title.
chart.title().set_name("Chart with Error Bars");
// Add the chart to the worksheet.
worksheet.insert_chart_with_offset(33, 3, &chart, 25, 10)?;
// -----------------------------------------------------------------------
// Up-Down Bar example.
// -----------------------------------------------------------------------
// Create a new Line chart.
let mut chart = Chart::new(ChartType::Line);
// Configure the first series.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$B$2:$B$7");
// Configure the second series.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$C$2:$C$7");
// Add the chart up-down bars.
chart
.set_up_down_bars(true)
.set_up_bar_format(ChartSolidFill::new().set_color("#00B050"))
.set_down_bar_format(ChartSolidFill::new().set_color("#FF0000"));
// Add a chart title.
chart.title().set_name("Chart with Up-Down Bars");
// Add the chart to the worksheet.
worksheet.insert_chart_with_offset(49, 3, &chart, 25, 10)?;
// -----------------------------------------------------------------------
// High-Low Lines example.
// -----------------------------------------------------------------------
// Create a new Line chart.
let mut chart = Chart::new(ChartType::Line);
// Configure the first series.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$B$2:$B$7");
// Configure the second series.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$C$2:$C$7");
// Add the chart High-Low lines.
chart.set_high_low_lines(true);
// Add a chart title.
chart.title().set_name("Chart with High-Low Lines");
// Add the chart to the worksheet.
worksheet.insert_chart_with_offset(65, 3, &chart, 25, 10)?;
// -----------------------------------------------------------------------
// Drop Lines example.
// -----------------------------------------------------------------------
// Create a new Line chart.
let mut chart = Chart::new(ChartType::Line);
// Configure the first series.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$B$2:$B$7");
// Configure the second series.
chart
.add_series()
.set_categories("Sheet1!$A$2:$A$7")
.set_values("Sheet1!$C$2:$C$7");
// Add the chart Drop lines.
chart.set_drop_lines(true);
// Add a chart title.
chart.title().set_name("Chart with Drop Lines");
// Add the chart to the worksheet.
worksheet.insert_chart_with_offset(81, 3, &chart, 25, 10)?;
// -----------------------------------------------------------------------
// Save and close the file.
// -----------------------------------------------------------------------
workbook.save("chart_data_tools.xlsx")?;
Ok(())
}