Crate lodviz_core 

lodviz_core

Core visualization primitives and data structures for lodviz-rs.

This crate provides the foundational building blocks for creating data visualizations, including a tidy data model, grammar of graphics-inspired encodings, and statistical algorithms.

Key Features

• Tidy Data Model: Flexible DataTable and DataRow structures for heterogeneous data.
• Grammar of Graphics: Encoding and Scale types for mapping data to visual properties.
• Statistical Algorithms: KDE (Kernel Density Estimation), box plot statistics, and more.

Example

use lodviz_core::core::field_value::{DataTable, DataRow, FieldValue};
use lodviz_core::core::encoding::{Encoding, Field};

// Create a simple data table
let mut row: DataRow = DataRow::new();
row.insert("x".to_string(), FieldValue::Numeric(10.0));
row.insert("y".to_string(), FieldValue::Numeric(20.0));
let table = DataTable::from_rows(vec![row]);

// Define an encoding
let enc = Encoding::new(Field::quantitative("x"), Field::quantitative("y"));

Modules

algorithms

Algorithms for data processing and downsampling

core

Core data structures, typestates, and theming

io

File parsing for CSV, Arrow IPC, and Parquet formats lodviz_core::io — file parsing for CSV, Arrow IPC, and Parquet formats.

Macros

data_row

Build a DataRow from key-value pairs.