Figure 150: Changing the vertical position to 7 [src]
As described above vertical positions are specified as a numeric value [0..n] where 'n' is an arbitrary constant. (For practical purposes n is most likely < 100)
Using our previous example we will illustrate this parameter by changing the position of our 'Project' activity to position 7. Therefor we change the call to GanttBar() to
$activity = new GanttBar(
7,"Project","2001-12-21"
,"2002-02-20"
);and we then get the chart as shown below in Figure 150.
Note that the height of each position (vertical position) will depend on the actual height of the bar.