hourgraph v1.0.4
hourgraph
Creates an SVG from a TOML definition of a time plan / gantt chart
Originally written for my PhD panel 1 topic project analysis report, as I realised that not only have I manually creates a number of these, but I'm going to have to create a bunch more in the future....
- Current version:
- Changelog: https://github.com/sbrl/hourgraph/blob/master/Changelog.md
Installation
Install with npm
:
sudo npm install --global hourgraph
Or locally:
npm install hourgraph
Usage
There are 2 parts to using hourgraph. First, you need a configuration / definition file for your time plan / gantt chart. Then, you need to call the CLI to render it to SVG (PNG is currently not supported, but Inkscape can be used to convert - see below).
Definition file
hourgraph takes a TOML file as input. Examples files can be found in the examples directory. In short, the format of a valid time plan file is as follows:
# Specify global options here
width = 1920
height = 1080
# Tasks are defined next. Each should be headed with "[[task]]" like so:
[[task]]
name = "Make apple juice"
start = 2
duration = 2
# The above are the minimum required properties.
# Detailed explanations can be found below.
# Optional section, allows customisation of the visual style of the resulting svg
[style]
# Styling options go in here. See default.toml in the src/ directory for more information as to supported properties here.
# Link: https://github.com/sbrl/hourgraph/blob/master/src/default.toml
Detailed explanation of the properties on a [[task]]
:
Property | Type | Required | Meaning |
---|---|---|---|
name | string | yes | The name of the task (multiline strings are not currently handled correctly) |
start | number | yes | The point at which the task starts |
duration | number | yes | The number of units which the task lasts for. |
colour | string | no | The colour of the bar on the graph for this task. Overrides the global value specified in the [style] section. |
ghost_colour | string | no | Specifies the colour of the ghost bar from the left-hand side up to the actual bar itself. Overrides the global value specified in the [style] section. |
CLI
If you've installed hourgraph
locally, substitute all instances of hourgraph
for path/to/node_modules/.bin/hourgraph
(basically the path to the hourgraph
entry point).
Once you've got your definition file written, you can now call hourgraph to render it. By default, hourgrah reads and writes from and to the standard input and output:
hourgraph <path/to/file.toml >path/to/file.svg
However, the --input
and --output
flags can be used to specify filenames to read from and/or write to instead:
hourgraph --input path/to/file.toml --output path/to/file.svg
Help text can be displayed using the --help
argument:
hourgraph --help
Once you've got your SVG, you're done! If you'd prefer a PNG though, you can use the Inkscape CLI to convert it:
inkscape -o path/to/output.png path/to/file.svg
You can also specify a custom width or height to render to (maintaining aspect ratio):
# Specify the width:
inkscape -w 3840 -e path/to/output.png path/to/file.svg
# Specify the height:
inkscape -h 2160 -e path/to/output.png path/to/file.svg
Read-world use
- I'm using it in reports for my PhD in Computer Science!
- (Are you using this project? Get in touch by opening an issue)
Contributing
Contributions are welcome as PRs! Don't forget to say that you donate your contribution under the Mozilla Public License 2.0 in your PR comment.
Licence
This project is licensed under the Mozilla Public License 2.0. See the LICENSE
file in this repository for the full text.