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I have written a very kludgey way to do this where I can use the Show Tools tool on a graph and make a 3-point polygon, then run a function or macro from the command line to analyze it. I fully understand Igor was not designed for this level of interactivity.

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If it did it wrong, it erases and lets me try again, and I would either do it slightly differently (if I had done a point, maybe do 3 points this time) or just skip it and I'll do the full rim in ArcMap.If it did it right, then it saves that feature and pauses for me to do the next one.It would present a dialog box where I can enter a simple 1 or 0 (yes/no) that it did it right.As soon as that is done, Igor would run a set of functions I've written that takes that input and runs the crater detection in that immediate location, finding the crater, and drawing it on that image.I could create a simple point in a crater center, or line, or 3 points by just clicking on the image, somehow.Igor would be on 'standby' waiting for me to do something.Overlaid would be all the craters already identified (simple scaled markers that are circles).I would have a graph window that shows my image or a portion of my image.I'd really like to be able to at least do the point identification in Igor and have it find my craters. What I'd Like to Do: Anyone who's worked with ArcMap knows it's a real pain. I then take those point data and the rims back into Igor to do the analysis.

My current workflow is to take the user-curated AI list back into ArcMap, create simple points in the middle of craters that I think the AI could find if I tell it where they are and a very rough size (I have three shapefiles for different size ranges), or do what I've done for 15 years and trace out crater rims for those features that an AI won't be able to do well. Once that's done, I then need to identify the craters it missed.

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I wrote further code in Igor that takes in the images, presents me with the location of each feature (one at a time), and lets me grade the feature as either a true positive or a false positive.

The AI code – originally written in Igor but converted to Python because it was faster – returns a list of what it thinks are craters, returning the lat/lon center and approximate size. I've upgraded last year writing a very naïve AI detection code that nonetheless has sped up my workflow by a factor of ~5x.

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I do the actual mapping in GIS (Geographic Information System) software (ArcMap) and export the data in simple lists of latitude and longitude that is then read into Igor for analysis. I've used Igor since around 2007 to analyze crater rims by doing basic circle fits to crater rims.

My inquiry requires a bit of background, so bear with me.īackground: I map out impact craters on other planetary surfaces. Wide-Angle Neutron Spin Echo Spectroscopy.

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