The graphic evolution of waveform details updated?

Hi all, hope everyone is having a wonderful July 4.

-Very well, so I'm new to labview and find my things around simple things well enough, but not having never taken an interest programming, Im a little behind in the logic of the machine, so I thought I would ask here.

EDIT: using labview 2009.  Vision package

The research that I do is to analyze the electron Speckle Pattern Interferometry (ESPI) images and their fringes to observe weaknesses points/potential fracture in different materials and others.  I made a simple VI which allows me to draw a line on the image the ESPI and exit of the intensity of the light to a waveform chart to make it easier to objectively determine the size of the area (area where the fracture is more likely to occur) plastic.

What I would like is to be able to draw or first set the coordinates of the line, then somehow, be able to move vertically - using just my mouse or a digital controller - and have the graphic waveform updated in real time, as I do.

Any suggestions?  Ive attatched my programs, one called "line.vi" uses digital input to determine the coordinates of the line.

Also, since I did not sem to be able to set the bitmap images, Ive uploaded a sample of image here http://img594.imageshack.us/img594/3566/espiimage.png I don't know why imageshack converted into a PNG image if

Thank you all

Hi itschad,

have you read the context-sensitive help for the chart? Here we show what kind of data you connect to draw more than one line on the graph of some...

"Does a weird issue where once I select the line, the intensity profile keeps itself adding time and time again on the end of the table, so a table that could have initially 100 datapoints, stop of is longer and longer."

That's how cards work. They keep a story (that you disable constantly). You can set the size of the history buffer. If the default value of 1024 points, it's too much for you, you can cut it to 100 - it is just a right click away... Otherwise, you must use a graph as a graph plots only the points that are currently wired to him (it does not keep a history of previous values).

Tags: NI Software

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