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7c3800078e
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20 Commits

Author SHA1 Message Date
Alex Wilson
7c3800078e Make LinearProgramming::LinearSpec BReferenceable. 2012-05-03 08:44:53 +12:00
Clemens Zeidler
ef93b55df4 - Areas with same tabs are put in a column/row automtically. Move preferred size constraint from Area to the column/row. This avoids a "spring" effect of the 
quadratic solver if multiple Areas are in the same column/row.
- Replace GetString by ToString.
- some clean up



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40941 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2011-03-14 00:24:12 +00:00
Clemens Zeidler
8286779101 Make kp_solve interface work again. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40384 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2011-02-08 09:01:11 +00:00
Clemens Zeidler
a0ad88e002 Fix min/ max calculation by removing all soft constraints before doing so. Smaller fixes. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40297 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2011-01-26 22:06:02 +00:00
Clemens Zeidler
7583db5a1e Add an alternative solver to lp_solve. The solver based on Ingo's active set solver but is able to handle arbitrary hard and soft constraints. The advantage to lp_solve is that the active set solver can optimize variable in respect to a quadratic objective function. This makes it possible to minimise the quadratic derivation to a desired value e.g. \Sum_i(x_i - x_{i,pref})^2 -> min. 
The solver part has been refactored in this way that both solver can be used with the same layout specifications. The active set solver is default now; the performance is not as good as lp_solve, though.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@40285 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2011-01-25 04:59:40 +00:00
Clemens Zeidler
f108cdbfab Merge all linear programming types in one file an rename them. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39832 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-12-13 19:23:33 +00:00
Clemens Zeidler
5440f6fee3 Refactor the linear programming class to use a minimal solver interface class and implement the interface for lp_solve. As a result lp_solve is not visible to the outside any more. This interface could be used to use other solvers as well. Rename operator constants to no clash with lp_solve constants. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39829 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-12-13 18:41:58 +00:00
Clemens Zeidler
067f47a3ee Move lp_solve dependency completely into LinearSpec. Clean up and some more memory allocation checks. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@39681 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-11-30 02:08:10 +00:00
Clemens Zeidler
c2f0a314a0 Rename ReplaceObjectiveFunction to SwapObjectiveFunction I think this makes it more clear that the old function is not deleted. 
Cleanup Jamfile.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38960 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-10-13 05:44:52 +00:00
Clemens Zeidler
fc691d7de2 - Remove lp_solve dependencies form Variable class and put everything into LinearSpec. As a side effect Variable management is a bit more consistence now. We want to replace lp_solve soon so it will be easier to replace it just in LinearSpec. 
- Update copyrights.
- Lot of small things related to the Variable refactoring.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38892 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-10-05 20:15:55 +00:00
Clemens Zeidler
cad0c434c7 Refactor LinearSpec a bit, make it more difficult to leak the objective function. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38888 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-10-04 22:27:02 +00:00
Clemens Zeidler
cd88ee006d More cleanup and BList -> BObjectList. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38742 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-09-20 06:26:32 +00:00
Clemens Zeidler
601eded950 - Hide constraint header in Area file. 
- Start to replace BList with BObjectList.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38741 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-09-20 06:09:19 +00:00
Clemens Zeidler
4403274117 Some clean up (not complete). 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38736 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-09-20 04:23:27 +00:00
Clemens Zeidler
416aca7ac9 Fix some memory leaks. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@38735 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2010-09-20 03:45:04 +00:00
Stephan Aßmus
b8ec67f491 * Simplified and optimized a lot the "ToString()" debugging facilities. 
* *::Index() is now const, thanks to the BList improvements.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@34521 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2009-12-06 13:14:45 +00:00
Axel Dörfler
676ef01ba7 * Applied patch by Hong Yul Yang to update linprog. 
git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@33609 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2009-10-16 12:13:07 +00:00
Ingo Weinhold
5bced18eab ALM/linprog patch by Christof Lutteroth: 
* Got rid of class ObjFunctionSummand. Both the constraint summands and
  the objective function summands are now stored using class Summand.
* Some method names are more BeOS compliant now: SetX instead of ChangeX.
* linprog test code now uses new AddConstraint methods.
* CalculateMinSize and CalculateMaxSize did not free the memory they
  allocated.
* Removed inappropriate setter and getter methods.
* Memory allocated in class Constraint is freed now.
* Other small changes.



git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24351 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2008-03-10 21:43:32 +00:00
Ingo Weinhold
0306945545 Patch by Christof Lutteroth: 
* copyright headers for the files of the libraries linprog and alm
* new class Summand for representing summands in a linear constraint
* merged class SoftConstraint into class Constraint; Constraint now
  supports both soft and hard constraint functionality
* new AddConstraint methods in class LinearSpec for directly setting
  constraints with 1 to 4 summands
* code cleanups by using aforementioned AddConstraint methods
* a new very simple test application for alm
* some style corrections


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@24108 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2008-02-25 01:54:05 +00:00
Ingo Weinhold
a101e99aad Added libalm.so and its dependency liblinprog.so. libalm.so provides a 
BLayout implementation (BALMLayout) using the Auckland Layout Model
(ALM). The original ALM was implemented by Christof Lutteroth, the
Haiku/C++ version by James Kim.
The code needs some review, but the test programs seem to work fine.


git-svn-id: file:///srv/svn/repos/haiku/haiku/trunk@23889 a95241bf-73f2-0310-859d-f6bbb57e9c96
 2008-02-06 10:51:44 +00:00