バイナリデータの取得について

[ikeda_kaoru]

Thank you for your reply.

Is there a function or something that swaps the values of two cluster elements?

I have not studied enough and do not understand the ArrayToCluster function very well... sorry!

[altenbach]

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@ikeda_kaoru wrote:

Thank you for your reply.

Is there a function or something that swaps the values of two cluster elements?

I have not studied enough and do not understand the ArrayToCluster function very well... sorry!

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You could just reverse the array before converting to a cluster or you can rewrite the earlier logic so the elements are in the correct order already

(When using "array to cluster", it is also important to define the number of elements of the output. If you don't understand a function, read the help! Is there anything not clear?)

[altenbach]

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@altenbach wrote:
... or you can rewrite the earlier logic so the elements are in the correct order already

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For example, if you swap the inputs to the two "built array" nodes as follows, the cluster element values would be swapped.

[ikeda_kaoru]

Data is taken at intervals of 1 μs while moving the tip of the scanning tunneling microscope.

The number of data is 198 x 256 x 256 = 12976128.

From this data, I want to extract data from this data at intervals of 198, such as 1,199,397,595....

Then 65536 data should be extracted.

I want to create an image by placing this at 256 x 256 pixels.

The first step is to place the image from 0 pixel to 255 pixels in the x-axis direction. Next, move 1 pixel in the y-axis direction and place. Then, from 255 pixels back to 0 pixels in the x-axis direction. Then move 1 pixel in the y-axis direction and repeat the process. Please refer to the file(scan1.pdf).

[ikeda_kaoru]

Thank you very much.
It worked.

[ikeda_kaoru]

I would like to add a program to the attached program to retrieve binary data.
The number of data being read from the FIFO is 198 x 256 x 256 = 12976128. I want to get this data as an array as binary data.
Thank you in advance for your help.

[ikeda_kaoru]

添付したプログラムに、バイナリデータを取得するプログラムを追加したいです。
FIFOから読み取っているデータ数は198×256×256=12976128です。

このデータを配列としてバイナリデータとして取得したいです。
よろしくお願いいたします。

[Bob_Schor]

I'm still very confused about what hardware you are using.  Do you really have an FPGA that can save all those images?  Why/how are you using the FPGA?

I'm assuming that you are saving the 3D data (the first dimension being X, the second Y, and the third Image # (or Z), with indexing on alternate X and Y possibly alternating (increasing/decreasing), the first thing to do is to transform the linear scan to a 3D (XY images x Image # = video) representation that you should be able to view in an IMAQdx Window display.  You'll read the data in 256 pixels-at-a-time, reversing every other scan (assuming you are using a "back-and-forth" scanning motion (and possibly also "flipping" every other 256 x 256 images, if you not only scanned left-rignt but also down-up Y scannng).  Juat read the image data 256 elements at a time and with the same logic that you used to run the scan, use it to reassemble the video images.

Bob Schor

[altenbach]

I computers, everything is "binary" one way or another, so you need to be much more specific.

Most of your code is highly disorganized and flawed. For example connecting a local variable to its own terminal is completely senseless. Then you have plenty of interactive greedy loops. Who wrote this? Does it work well?

[altenbach]

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@ikeda_kaoru wrote:

I would like to add a program to the attached program to retrieve binary data.
The number of data being read from the FIFO is 198 x 256 x 256 = 12976128. I want to get this data as an array as binary data.
Thank you in advance for your help.

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Your code is highly flawed and shows a glaring misunderstanding of many LabVIEW concepts. I already responded in your other thread containing the same question.