setduration

Purpose

A cptask is represented by three cpvar:

• 'start' representing the start time of the task
• 'end' representing the completion time of the task
• 'duration' representing the duration of the task.

These three structural variables are linked with the following constraint: task + duration ≤ end. The duration variable represents two specific parameters of the task: The minimum task duration (Dmin, represented by its lower bound) and the maximum task duration (Dmax, represented by its upper bound). The graphic below illustrates these properties.
When the resource is given as an argument, the duration of the task will be effective only if the task is assigned to the given resource: (task.assign(r) = 1) => task.duration = duration.

Synopsis

procedure setduration(task:cptask, duration:integer)

procedure setduration(task:cptask, durationMin:integer, durationMax:integer)

procedure setduration(resource: cpresource, task:cptask, duration:integer)

Arguments

task	a task
duration	fixed duration of the task
durationMin	minimum duration for the task
durationMax	maximum duration for the task
resource	a resource ( e.g. for alternative resources)

Related topics

getduration set_start_based_duration update_duration_with_idle_times set_duration_with_idle_times get_start_based_duration

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