Two questions

[Liviu Lalescu]

Hello, crow,

You said that you lowered the weight for Cat/Geo to 99%
Question what is the implication(s) of that?

This means that FET might skip this constraint in ~1/100 of cases. This was to prove that your data is impossible, since the timetable of Comp Room is almost full but there remained many activities which were supposed to be but were not placed in this room.

I have created virtual rooms for the other subject combinations LS/His
and Maths/Maths Lit.

Yes, but you did not use them in these subjects preferred room constraints.

I have now found that some in some periods (For Cat/Geo) the room numbers
appear and in other periods the room numbers does not appear.

Yes, because the constraint preferred room was skipped in some cases (it has <100.0% weight).

Ps. When I started out learning FET, the idea was just to get a timetable first
and later on start experimenting with constraints! Clearly that was not to be!

I am sorry for the inconveniences.

[crow]

Hi Liviu

I am gonna get my act together make corrections and come back to you.

Don't worry, I am learning!

crow

[crow]

Hi  Liviu

I actually do have a timetable. For now I will just go without virtual rooms (meaning the
room names/room numbers for e.g. a Physics/Business Stud, will not appear on the timetable.

I have one question though. In my time table I have 3 breaks. The first one, at the start of day
is actually an Admin period. I suppose I can 7 Admin periods to each class group, but what is the easiest
way of making the very first "break" (07:30 - 07:40, start of day) an "Admin period" for ALL class
groups and ALL teachers?

I could really use some advice.

Thanks

crow

[Liviu Lalescu]

Hello, crow,

I think you mean you only need to add an activity (split into 7) with all the 6 years (add 6 students sets, the 6 years you have) and all the teachers you have, and constrain it to be only at the first slot.

[crow]

Hi Iviu

I had done this for  and the following message pops up.
Activity with id=716 has no allowed slot - please correct that

I have done this for Day 1 – Day 7

Time constraint
Activity with id=716 (T:J. Brown,S. Fanekiso,Z. Nombevu,M. Nokonya,V. Ndudane,L. Jacobs,N. Luwaca,M. Cupido,S. Rigala,L. Mahote,A. Mbawuli,D. Stephens,P. Suys,X. Nluvo,Z. Mana,J. Treurnicht,G. Soldaat,S. Gwanya,ZZ,Z. Bobela, S:Admin, AT:Periods, St:Gr 7,Gr 8,Gr 10,Gr 9,Gr 11,Gr 12)
has a preferred starting time:
Day=Day 7
Hour=07:30 - 07:40
Weight (percentage)=100%
This activity is permanently locked, which means you cannot unlock it from the 'Timetable' menu (you can unlock this activity by removing the constraint from the constraints dialog or by setting the 'permanently locked' attribute false when editing this constraint)

[Liviu Lalescu]

Could you please show me your file?

[crow]

Hi Liviu

Here it is.

Thanks

crow

[Liviu Lalescu]

Easy. See my attached file, my last 8 constraints' comments (the last constraint is active, the other 7 not).

[crow]

Hi Luviu

Please note the insert.


How do I get X - Act id?
I only get as far as Act id when I add the activity constraint "preferred starting times.


Hope you can see the image


crow


Previously I had the same problem.

[Liviu Lalescu]

Hello, crow,

You can only activate/deactivate constraints in the all time/space constraints dialogs. You can also activate there a filter and sort the constraints alphabetically.

[crow]

Hi Liviu

Thank you for all help you provided thus far.

Sometimes I forget to say thank you.

I saw a post somewhere where someone asked to get rid of the
activity tags in the timetable.  To circumvent the problem, I simply added
an "empty" activity tag, that is, instead of writing a tag, press the space bar once
and save as an activity tag.

When you select the tag to add to an activity, it may be difficult to know where the tag is.

So I positioned the activity tag between two other tags like so:

Tag 1: periods
Tag 2:            This is where the empty tag is.
Tag 3: lectures

Hope this makes someone's life easier.

Thanks

crow

[Liviu Lalescu]

Hello, crow,

No problem 

Your solution is interesting, but newer FET versions have a property for tags, Printable or Not printable, in their dialog.

[crow]

Hi Luviu

Thank you for your unwavering support!

What exactly does the following Mean?

"Timetable breaks 3 soft constraints, has 2.85 soft conflicts total,
and was generated in 0 hours, 0 minutes and 14 seconds."

If you generate multiple timetables, does it imply the the timetable with
the fewest soft constraints and soft conflict total is the best timetable?

Thanks

crow

[Liviu Lalescu]

You can see the soft conflicts in the conflicts list (timetable view conflicts or in a text file in the results).

Not necessarily lower conflicts timetables are better. Depends on your opinion.

You might want to increase the weight of your constraints from 95% to 99%, to 99.75%, or even 100% if it still solves. You can change multiple constraints min days between activities weights with a single click, in the dialog of the constraints min days between activities.

[crow]

Hi Liviu

Thanks again for your support.

Can you perhaps direct me to pdf FET manual?

I checked the Internet and a site wants me to pay for a download.

Thanks

crow