Merge 2D pictures

[mthheitor]

Trying to reproduce @wiebe's example

What is the name of the function used to transform the cluster and color box into a picture?

[Andrey_Dmitriev]

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@mthheitor wrote:

Trying to reproduce @wiebe's example

What is the name of the function used to transform the cluster and color box into a picture?

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[mthheitor]

I found it, it's the Draw Rectangle.vi

But now I have another question:

I'm using the "Get Image" invoke node to get image from two 2D graphics in the Front Panel

How can I merge these two images into a single png file?

[Andrey_Dmitriev]

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@mthheitor wrote:

I'm using the "Get Image" invoke node to get image from two 2D graphics in the Front Panel

How can I merge these two images into a single png file?

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It depends from what you needed. How to "merge" - side by side, or something else? Try to draw both images into single picture, then convert it to Pixmap, then save to PNG using Write PNG File, that is.

[mthheitor]

Yes, I want to get both XY Graphs in a single .png file, one above the other like in Fig.1

Fig. 1

LabVIEW can export one graph using the instructions "Get Image" + "Write PNG File.vi" (Fig. 2). This process it's very simple and uses only one wire.

My initial questions are:

1. Is there a way to combine the "Image Data" of both XY Graphs?

2. Or do I need to use the Invoke Node "Get Image", convert the "Image Data Cluster" using "Unflatten Pixmap.vi" (Fig. 3) before anything else?

Fig. 3

[Andrey_Dmitriev]

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@mthheitor wrote:

Yes, I want to get both XY Graphs in a single .png file, one above the other

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The simples way to do this is something like that:

In horizontal direction will be a little bit more complicated, but also possible, of course.

[Andrey_Dmitriev]

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@Andrey_Dmitriev wrote:

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@mthheitor wrote:

Yes, I want to get both XY Graphs in a single .png file, one above the other

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The simples way to do this is something like that:

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And this will work in assumption that you have exactly the same width of the both graphs. If not - then you have to copy line by line and fill the gap on smallest graph.

[zou]

Maybe you could put both graph on a Tab control, and call Get Image from the Tab instead of merge 2 images.