Stacks and Total Sheet Count

[vicki]

When using stacks and sheet counts I'm having a problem getting the correct total sheet count after the 2nd stack.

 

I've attached the small test files I've been using – 2up, stacks of 10.

 

If I run 20 records it comes out fine. Slugline reads F. 1 of 10, F. 2 of 10, etc. If I run 17 records it comes out fine .... F. 1 of 9, 2 of 9, etc.

BUT if I run 26 records I get ... 1 of 15, 2 of 15, 3 of 15, like it's a full stack when it isn't. It should read 1 of 13, 2 of 13, etc.

FP Stack Sheet Count Test.zip

Edited July 21, 2021 by vicki
add attachment

[Dan Korn]

I don't see any attachment.

[vicki]

Helped to hit "upload".

FP Stack Sheet Count Test.zip

Edited July 23, 2021 by vicki

[vicki]

I've uploaded the files.

 

Thanks.

FP Stack Sheet Count Test.zip

[Dan Korn]

Thanks for creating a great sample job which demonstrates the problem clearly.

 

This is a bug in the calculation of the total number of imposed sheets when one or more stacks are "short", i.e. there are not enough composed output records/pages to completely fill the number of sheets defined for the stack. Typically, as in this case, it's the last sheet that's short.

 

You can work around this by calculating the number of sheets based on the total record count and the number of sheets in a stack. In this job, you can modify the rule "Slugline Rule" like so:

var sheet = FusionPro.Composition.impositionSheetNumber || 1;

//var totalSheets = FusionPro.Composition.impositionTotalSheets;
// Work around bug with calculating the total number of sheets when stacks (such as the last) are incomplete.
var recordsPerSheet = 2; // for "stack test.fpi"
var totalRecs = FusionPro.Composition.totalRecordCount || 1;
var totalSheets = Math.ceil(totalRecs / recordsPerSheet);

return "F. " + sheet + " of " + totalSheets;

I've entered a case about this, FP-508.

[vicki]

Thanks so much.