histogram_cell_label

defines the label inside a cell

start_date	Date	start date of the scale cell
end_date	Date	end date of the scale cell
resource	object	the resource object
tasks	Array <Task>	tasks that are assigned to the specified resource and overlap start/end dates of the cell
assignments	array	resource assignments that are assigned to the specified start/end dates of the task

Available only in PRO Edition

gantt.templates.histogram_cell_label = function(start_date,end_date,resource,tasks,
    assignments){
    return tasks.length * 8;
};

Details

This functionality is available in the PRO edition only.

The "assignments" argument is only available when the process_resource_assignments config is enabled.