# PyChart Reference Manual

## Table of Contents

- Copying
- Introduction
  - Line plot
  - Bar plot
- PyChart Options
  - PYCHART_OPTIONS
  - Command-line options
  - Setting variables manually
- Anatomy of a chart
- Attributes
- Unit of length and the coordinate System
- Input data
- Area
  - Specifying the coordinate system
  - Axes
- Bar Plots
- Line and scatter plots
  - Tick marks
  - Error Bars
- Range Plots
- Pie Plots
- Legends
- Line Styles
- Colors
- Fill Styles
- Drawing texts
- Annotation
- Arrows
- Tricks
  - Drawing arbitrary objects on canvas
  - Clipping
  - Redirecting output
- Index

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- Copying: Your rights.
- Introduction: Overview of pychart, along with examples.
- Options: Controlling pychart via env variable and cmdline.
- Anatomy: Overview of chart components
- Attributes: Setting and reading object attributes.
- Unit: Unit of length and scaling chart.
- chart_data: Reading CSV files and transforming data.
- area:
- bar_plot: Drawing a bunch of bars.
- line_plot: Line and scatter plots.
- range_plot: Range-fill plots.
- pie_plot: Pie plots to show shares of things.
- legend: A small box that describes lines or bars.
- line_style: Specifying width, color, and dash style of lines.
- color: Red, green, yellow, etc.
- fill_style: Specfiying background patterns
- font: Changing font name, size, and angle
- text_box: Drawing "callout box" with texts and arrows
- arrow: Drawing arrows.
- Tricks: A few tricks you can do using internal modules.
- Index:

  --- The Detailed Node Listing ---

  Area

- coord: Specifying the coordinate system. Linear, log, etc.
- axis: Displaying X and Y axes.

  Line and scatter plots

- tick_mark: Drawing a funny symbol drawn at each sample point.
- error_bar: Drawing error bars

  Tricks

- canvas: Drawing arbitrary objects on canvas
- Clipping:
- Redirecting output: Drawing multiple graphs.