Error from Hell: Overflow
in [Visual Basic]
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From: Brian Shafer on 21 Oct 2005 23:58 You would need a good error trapping method. But just from a quick glance, you may be using a 3rd party graphing component that is not installed, registered, or licensed on the other computer. Brian "Athena" <girit(a)comcast.net> wrote in message news:uFoTCbq1FHA.3660(a)TK2MSFTNGP15.phx.gbl... > Hi, > > My VB6 (SP6) app produces an Overflow error and bombs. I use Win XP > (Sp2). > > 1) Program has Option Explicit. So every variable is typed. > 2) Program works fine on one computer, but not on another! > 3) Error is intermittent. > 4) Sometimes it overflows even on VB timer function. > > I am using a dll that was created from another program. In the calling > statement, there are 13 output arguments (x1,y1,z1,...) defined as > Variant. They are arrays with no priory knowledge of their size. And there > are several input arguments (in1,in2...) typed as double. > > Dim b as variant > Dim x1 as variant > Dim y1 as variant > ...... > > call subroutine(13, > b,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4,in1,in2,in3,in4,...) > > These arrays used to plot a 3D graph: > > with Graph3D > > for i=1 to ubound(a1,1) > PlotXYZ x1(i,1),y1(i,1),z1(i,1),0 > next > for i=1 to ubound(a1,1) > PlotXYZ x2(i,1),y2(i,1),z2(i,1),1 > next > for i=1 to ubound(a1,1) > PlotXYZ x3(i,1),y3(i,1),z3(i,1),2 > next > for i=1 to ubound(a1,1) > PlotXYZ x4(i,1),y4(i,1),z4(i,1),3 > next > .autorange > > end with > > I believe the overflow is caused by somewhere in these for loops. If I > remove the last two or three loops it goes away! What the hell is going > on? > > Is there a way to detect/trap overflow? I run MS code advisor, it is > useless. Any help greatly be appreciated. Please help. > > Cem > > > > > > >
From: Kevin Provance on 22 Oct 2005 00:13 Seriously buddy, it's hard to take you serious with a handle like "someone". Any reason why you won't use a real name? - Kev "Someone" <nobody(a)cox.net> wrote in message news:uyVMYNr1FHA.3816(a)TK2MSFTNGP14.phx.gbl... > See my post here about how to add error handling to all routines that > pinpoints the line number: > > http://groups.google.com/group/microsoft.public.vb.general.discussion/msg/da28c493c61c6b60 > > Also, it looks like you typed your code instead of using Copy&Paste. > Please post code fragments and also the Dim statement. How a variable > appears in a Dim statement is very important. > > In this example: > > Dim Num1, Num2 As Double > > Num1 is a Variant, Num2 is a Double. In VB6 and prior, use the following > syntax: > > Dim Num1 As Double, Num2 As Double > > > > > "Athena" <girit(a)comcast.net> wrote in message > news:uFoTCbq1FHA.3660(a)TK2MSFTNGP15.phx.gbl... >> Hi, >> >> My VB6 (SP6) app produces an Overflow error and bombs. I use Win XP >> (Sp2). >> >> 1) Program has Option Explicit. So every variable is typed. >> 2) Program works fine on one computer, but not on another! >> 3) Error is intermittent. >> 4) Sometimes it overflows even on VB timer function. >> >> I am using a dll that was created from another program. In the calling >> statement, there are 13 output arguments (x1,y1,z1,...) defined as >> Variant. They are arrays with no priory knowledge of their size. And >> there are several input arguments (in1,in2...) typed as double. >> >> Dim b as variant >> Dim x1 as variant >> Dim y1 as variant >> ...... >> >> call subroutine(13, >> b,x1,y1,z1,x2,y2,z2,x3,y3,z3,x4,y4,z4,in1,in2,in3,in4,...) >> >> These arrays used to plot a 3D graph: >> >> with Graph3D >> >> for i=1 to ubound(a1,1) >> PlotXYZ x1(i,1),y1(i,1),z1(i,1),0 >> next >> for i=1 to ubound(a1,1) >> PlotXYZ x2(i,1),y2(i,1),z2(i,1),1 >> next >> for i=1 to ubound(a1,1) >> PlotXYZ x3(i,1),y3(i,1),z3(i,1),2 >> next >> for i=1 to ubound(a1,1) >> PlotXYZ x4(i,1),y4(i,1),z4(i,1),3 >> next >> .autorange >> >> end with >> >> I believe the overflow is caused by somewhere in these for loops. If >> I remove the last two or three loops it goes away! What the hell is going >> on? >> >> Is there a way to detect/trap overflow? I run MS code advisor, it is >> useless. Any help greatly be appreciated. Please help. >> >> Cem >> >> >> >> >> >> >> > >
From: DanS on 22 Oct 2005 00:17 Athena <Athena(a)devdex.com> wrote in news:ek8Ot6q1FHA.3204 @TK2MSFTNGP14.phx.gbl: > > Mike, > > What I want is to plot a pointcloud data in 3D. Different parts of > the data is to have different colors. I should be able to rotate the > plot by using mouse. For this I have to write a piece of code either in > DirectX or OpenGL. Since I am not a professional programmer such as > yourself, my solution was to find a nice dll (NTGraph3d)and plot for x,y > and z sets (12 variables) using this dll. Do you know a VB code that > would plot >50000 data points in less than 1s and capable of rotating > the plot? I would be happy to use it right away. > > Otherwise I am stuck with this "overflow" error. > > Do you know how to find the origin of an overflow error? In my case > not only it is intermitent, but it pops up from different parts of the > program. This is what I want to find out from MVP's such as you. > > > Athena > > *** Sent via Developersdex http://www.developersdex.com *** Athena, I'm not going to attempt to help you with your code but I would like to thank you for pointing out this DLL. At first glance, it has SERIOUS power. Regards DanS
From: Ralph on 22 Oct 2005 00:33 Perhaps... Sumwun, Dramatis Personae, Personage, ABeing, ...
From: J French on 22 Oct 2005 04:05
On Fri, 21 Oct 2005 23:58:21 -0400, "Brian Shafer" <bsgallatin(a)community.nospam> wrote: >You would need a good error trapping method. But just from a quick glance, >you may be using a 3rd party graphing component that is not installed, >registered, or licensed on the other computer. Or maybe the other computer has a funny screen size or resolution |