Gantt Charts

Introduction

A Gantt chart is a horizontal bar chart providing a graphical illustration of a schedule that helps to plan, coordinate, and track specific tasks in a project.

Davisor Chart allows you to create Gantt charts by using bar chart with specific attributes.

Data Model

Mandatory channels: two value channels.

Optional channels: label channel, other value channels.

The first value channel must contain TIMESTAMP, DATE, or TIME data. Other value channels may contain CALENDARFIELD or MOMENT data.

In the typical use case the first value channels stands for the starting time of the task. The next are cumulated to it using series cumulative attribute. Cumulated values can be exact moments or time durations given as calendar fields. It is also possible to combine these so, that the second value channel stands for the actual time used the third value channel contains estimated end dates for the tasks.

Attributes

The following attribute specifications are needed to create Gantt charts:

Used chart type is 'bar'.
The first value channel needs to be 'hidden'.
Other value channels belonging to the same Gantt bar must be cumulative.
Point stroke is recommended to be zero.
Category axis (dim="category") is usually reversed in order to get tasks in top-down order.

Examples

A project schedule - estimated and elapsed time.

A work shift timetable example with cumulative times.