Mindstormer

QUOTE(Irene_he @ Sep 15 2007, 03:56 PM) Ok thx for your reply Irene, I tried to put the snap function in a while loop, but the rate at which is snaps is rather low.Its for steering a robot and I want as little delay as possible. I want to get an image from webcam process and the as soon as processing is finished, I want to get another new image from the webcam. How is the best way to do this in Ivision?I tried the imaq snap function and that takes about 3 seconds to take a picture, why is this so long?how to decrease this time UPDATE: I used the continous function of imaq with a timeout of 10 ms and now I can track my object.

QUOTE(tcplomp @ Sep 3 2007, 09:53 AM) That post was what I was looking for I think, Now I did it with ASP. An example of asp code that is steering labview: Set lvApp = CreateObject("LabVIEW.Application") lvapp.BringToFront VIPath = "c:\inetpub\wwwroot\test.vi" Set VI = lvApp.GetVIReference(VIPath) VI.FPWinOpen=True%> <B>OS Name is :</B> <% =lvApp.OSName%><br> <B>Target CPU is :</B> <% =lvApp.AppTargetCPU%><br> <B>OS Version is :</B> <% =lvApp.OSVersion%><br> <B>OS UserName is :</B> <% =lvApp.UserName%><br> <%Set VI = lvApp.GetVIReference(VIPath) Call VI.Call(ParamNames, ParamVals)%> Degree C: <INPUT NAME="degc" SIZE="30" VALUE="<% =ParamVals(0)%>"><P> Degree F: <INPUT NAME="degf" SIZE="30" VALUE="<% =ParamVals(1)%>"><P> <INPUT TYPE=SUBMIT VALUE="Return"> <%set vi=nothing%>

I want to live track an object with an USB webcam. Which tool do I use best. I searched this forum a lot and I come up with a lot. I installed them all but I dont know what the advantages or disadvantages are. Grabbing the images: Videocapx (uses WDM driver?) Imaq for usb webcams (uses ..?) Ivision toolkit (uses video for windows driver?) Writing your own dll (with help of windows wia?) other.. Processing Vision assistance 8.0(can convert to labview vi's) Ivision toolkit other ... So what are the advantages or disadvantages? And how is the best method? Snap an Image --> process(search for object) --> snap next image ? thank you

QUOTE(TG @ Sep 2 2007, 03:47 AM) yes the server has the clones in its memory so I know there must be a way possible. But I only dont know what way. But maybe I gonna fix my solution with ASP.NET.I read that it cant be coupled to labview code. And I think with ASP it is possible to find out which user pressed a button

QUOTE(Ben @ Aug 31 2007, 03:42 PM) No no I am glad someone is trying to help me. I must leave now, but I will test this after I come back, and that will be monday. I will send u my email, and then you can add me to msn messenger

QUOTE(Ben @ Aug 31 2007, 03:06 PM) I dont exaclty understand how I should implement the template with the web publishing tool?And does the template need to be reentrant?

QUOTE(Ben @ Aug 31 2007, 12:58 PM) I tried this but the property from vi server "this vi" always references to the original vi. So how do I get the reference to the cloned vi's?

QUOTE(Ben @ Aug 31 2007, 12:24 PM) thanks for the reply The problem is that I searched in labview and on the internet how to get these reference to each instance. But I didnt found it. So you can narrow down my problem to just finding the instance reference from a clone from a reentrant vi. And then I probably can use this reference with vi server to monitor the status of the button. I never worked with templates so I also will look further how it works

QUOTE(JFM @ Aug 31 2007, 10:59 AM) Ok, First I will explain what i want to achieve I have a Reentrant vi and I published it with the web publishing tool. Now different clients can connect to it. To make it simple: on the vi is only a simple button. Now I want to know what the status of the button of every connected user/ip/client is. This information should be available at the server. I added a reentrant vi with just one button. thank you

How is it possible to find out at the server side which client pressed a button on a reentrant vi? thank you