colmap | COLMAP - Structure-from-Motion and Multi-View Stereo | 3D Printing library

When using jackson you most mutators are not defined on JsonNode but rather the specific sub-classes for that type of node (in your case ArrayNode for json arrays)

For example to add a string to the idCols array you would:

As already noted while I was typing this up, it is a pre-C++17 method to perform a fold expression.

It uses a local temporary array of int, along with the comma operator, to sneak a bunch of what would otherwise be:

After loading R and T try this and use quaternions for camera direction.

I was finally able to include colmap. I had not payed attention to the debugger version I was using. It was set to x86 and my colmap was compiled at x64, so it would never show up on my VS2019!

Don't use a dictionary at all. Use the HSV color model to calculate the colors. Divide H (hue) into n pieces. If that's still not sufficient in amount, you can change S (saturation) and V (value) as well to get brighter or darker colors of the same hue.

This should easily give you more than 50 colors. The image below has 96, but IMHO some of them already become indistinguishable (but that might be my monitor):

I haven't painted the colors from my code below, but it should give you an idea on how colors can be generated:

I found the solution on a different website. I had to copy the platforms folder containing the qwindows.dll into the bin folder. This works as a solution for many different applications executable with a .exe; subprocess.call was then able to find the qt platform plugin and the script ran without errors.

This is a weird error, and the fact that you get two figures is also weird. You can fix it by creating the axes explicitly, but then I don't think the way you are shifting your colormap is quite right. Here is the code I ended up with:

If you know the property names ahead of time, you could just create an anonymous type to serialize: