Coloring a 3D Graph using measured Data

Hey there,
at first: Sorry for my "bad" english...I dont even know how to explain my problem in german, so english will be tough
I made a programm that can read the coordinates of NC Programms (X,Y,Z) and plots it into a 3D Graph (so I am plotting an five achsis milling process). This works fine. But: I have an array full of Data that has been measured while milling (e.g. acoustic emission, cutting forces..etc). I have to color the 3D Plot using this measured data.
For Example: While milling the cutting forces raises and the plot should color using the cutting forces from green to red (green: cutting forces below certain limit, red above). So when I read the coordinates/the plot (which describe the contour the tool runs) I can see by its color if everything (the measured process parameter) is fine.
I checked the 3D Plot's color vector but I just didnt get how it works. I read that the coloring is mostly affected by the Z- Coordinates (If it would be just affected by the color vector itself!)
I hope I could describe my problem properly. Thanks & best regards
Bastian

man1ac wrote:
Its me again.
I just used try and error at the 4D Acc example and somehow I made it work. BUT:
I just can use this settings, otherwise the lines are combined or the surface just doenst work (if I choose this).
PointStyle: cwPoint3DSolidCircle (I can use other Point structures, but this one looks the best)
PointColor: It set onto blue, but has no effect
LineStyle: no actual effect (what does it?)
LineColor: the same
ContourLevels: Whats this feature?
PlotStyle: cwPoint
Transparency: 20
Can anyone explain to me what these name features acutally do?
The result is not quite bad, the plotted Points change their color dependend on the W-Vector (I just filled one with 0 and replaced 2 values, so that only 2 Points will me Colored).
But the result would be nicer if I dont see any points, but a line which is colored. I didnt find any working combination of the possible settings.
Again thank you very much, 90% of the work are done *happy*
Well the other 10% is something you will have to get yourself by playing with the various options.
Line setting only have an effect if you are using a plot with line.
Point color is derived from the W vector and the color mapping.
Contour levels will draw lines throug hte surface where the Z plane intersect the surface.
I never got the help to work corectly and lerned everything I know by playing with the code.
Have fun!
Ben
Ben Rayner
I am currently active on.. MainStream Preppers
Rayner's Ridge is under construction

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http://venus.ni.com/stage/we/niepd_web_display.DISPLAY_EPD4?p_guid=B45EACE3E95556A4E034080020E74861&p_node=DZ52038&p_submitted=N&p_rank=&p_answer=&p_source=Internal
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Hello !
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ChrisMessage Edited by C. Minnella on 04-15-2005 02:42 PM
Attachments:
Convert Unscaled to Scaled.jpg ‏81 KB

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Fix for "Graph Acquired Binary Data.vi" in daqmx 7.4's "Measure Voltage.llb". (factory gains are reversed)

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I am a little confused by your statement "I have cFP-2120 with one RS-485 Port, One RS-422 and one RS-232 Port available". The cFP-2120 has 3 RS-232 ports and only 1 RS-485 (or RS-422).
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Step using old measurement data

I have a strange problem.
I have a test sequence which runs correctly for several previous steps, using VI's
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I know the VI is returning the correct data, beacuse i put in a break point & watched it.
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Labview 2010, TestStand 2010

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Can I acquire data with VB from my DAQCard without using Measurment Studio?

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The absolute quickest and easiest way to get started using an NI-DAQ card in VB.NET is through the DAQ Assistant and Measurement Studio Professional or Enterprise edition.
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Color XY gra[h using a gradient?

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Go to Solution.
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Profile_SIM.vi ‏28 KB

sasko wrote:
It seems that my question belongs here.
No, it doesn't! This is a thread with a marked solution. Even though the topics are related, you now cannot mark a reply to your question as solution, because it is not your thread. Also, this thread is half a year old. So, next time start a new thread. Insert a link to this thread if you think it provides additional information.
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LabVIEW Champion . Do more with less code and in less time .
Attachments:
BilinearGraph.png ‏53 KB
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How does waveform graph downsamples the data before it is plotted

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I'm interested in how does waveform graph downsamples the data before it is plotted and what algorithm is used for this purpose? My goal is to plot 30 plots that have 1M samples each and I would like to downsample them before plotting onto a graph. I tried several VIs/algorithms for resampling and none of them gave the same result as seen by waveform graph (when all the samples are plotted).
For example, if only one sample of 1M samples is 1 and all others are 0, then after downsampling to 1k samples the sample is not visible on the graph anymore. However, if I plot all 1M samples directly onto the graph, then also this 1 sample is visible (see attached example).
Solved!
Go to Solution.
Attachments:
WFGDownsampling.vi ‏19 KB

Hi andrej,
LabVIEW draws plots in the way that draw every pixel affected by signal. So for example if there is zero-valued 1M samples and even one equals to 1, you will see the peak. That is the reason why you do not get the exactly same behavior comparing to interpolating. But if you set FIR as interpolation mode in Resample Waveforms (single shot).vi, result is really similar, but of course amplitude is 1000-times smaller than original one (because there is dt set to 1000). Keep also in mind that in Graph 2, there is different Y-scale and it should be considered as noise, not relevant data, I would expect 1000-times smaller amplitude as in Graph 3, it is many more times smaller.
I would also like to say something about downsampling (decimating) the data. If you have 1M samples, you can see the peak even that there is only one value. But bigger problem is that with this graph resolution (I guess that is not more than 1000px), it is problem to find position of this peak. It means that still the zoom is needed to know where the peak is. Usually, when there is that big set of data, you are extracting different data (statistical information, peaks in FFT, etc.) not just visual data in graph.
Mariaaa:
I do not understand your question, can you please describe more your needs? You mentioned saving the data into a file, you can use Write to Measurement File express VI or see Write to Text File.vi in Example Finder and try to appropriately modify it.
Best regards,
Martin

Programming Marker Color in XY Graph

Hello Everyone,
In Igor by Wavemetrics, I can plot XY graph with marker only, the marker color can be tied to the corresponding value in a third data column. In some sense, this is similar to but not quite like an intensity graph. Is it possible to do this in Labview?
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Fang

Fang,
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Linking lines on a graph with missing data

Hi
I am trying to produce line charts for a series of events. The way it will work is there are 15 days, and measurements are taken at uneven intervals, such as day 1, 2, 3, 7, 12, 13, 14. When I plot these, the line links the plot marks where they are just a day apart, like 1,2,3, leave a dot for 7 and then have a line between 13 and 14. How do I link the line so it can jump the days without any measured data?
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Stuart

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