Attached is t1.vb which is glpk/examples/t1.cs converted from C# to Visual
Basic.
C:\Users\Nigel\DevVB>
C:\Users\Nigel\DevVB>vbc t1.vb
Microsoft (R) Visual Basic Compiler version 9.0.30729.1
Copyright (c) Microsoft Corporation. All rights reserved.
C:\Users\Nigel\DevVB>t1 2424 772
a = 2424, b = 772
Hello Nigel
Trying 772
0: obj = 0.000000000e+000 infeas = 1.000e+000 (0)
* 1: obj = 0.000000000e+000 infeas = 0.000e+000 (0)
OPTIMAL SOLUTION FOUND
Integer optimization begins...
+ 1: mip = not found yet >= -inf (1; 0)
+ 3: >>>>> 0.000000000e+000 >= 0.000000000e+000 0.0% (3; 0)
+ 3: mip = 0.000000000e+000 >= tree is empty 0.0% (0; 5)
INTEGER OPTIMAL SOLUTION FOUND
x = 1, y = -3, a*x + b*y = 108
Trying 108
* 3: obj = 0.000000000e+000 infeas = 0.000e+000 (0)
OPTIMAL SOLUTION FOUND
Integer optimization begins...
+ 3: mip = not found yet >= -inf (1; 0)
+ 7: >>>>> 0.000000000e+000 >= 0.000000000e+000 0.0% (3; 1)
+ 7: mip = 0.000000000e+000 >= tree is empty 0.0% (0; 7)
INTEGER OPTIMAL SOLUTION FOUND
x = -7, y = 22, a*x + b*y = 16
Trying 16
* 7: obj = 0.000000000e+000 infeas = 0.000e+000 (0)
OPTIMAL SOLUTION FOUND
Integer optimization begins...
+ 7: mip = not found yet >= -inf (1; 0)
+ 21: >>>>> 0.000000000e+000 >= 0.000000000e+000 0.0% (3; 6)
+ 21: mip = 0.000000000e+000 >= tree is empty 0.0% (0; 17)
INTEGER OPTIMAL SOLUTION FOUND
x = -50, y = 157, a*x + b*y = 4
Trying 4
Solution is 4
GoodBye Nigel
C:\Users\Nigel\DevVB>
----- Original Message -----
From: "Greig Oldford"
To: address@hidden
Subject: [Help-glpk] Integrating GNU GPLK with .NET
Date: Thu, 7 Jan 2010 22:24:08 +0300
Hi!
Looking for some info on how to access GPLK libraries from within a
VB.NET framework. I am doing embedded GIS programming and would
like access to the GNU GLPK math libraries for doing optimization.
Any suggestions for starting-points?
Greig
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t1.zip