OpenGeofiction

Crater Process

Posted by RubyIGuess on 8 February 2020 in English (English)

The way I started the process with this crater is by taking inspiration from a real crater, particularly the image in the bottom right.

This, by process of using the threshold effect on gimp plus some additional drawing, we get this image which forms the base of the crater.

This image, by use of a plugin in JOSM, can be placed in JOSM and traced. I think there might be an easier way to trace it in JOSM other than doing it by hand, but that's the way I did it.

This comes up with the resulting final sea-crater-thing.

Comment from iiEarth on 8 February 2020 at 10:00

That's traced beautifully... An excellent method for mapping such landmarks!

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Comment from Luciano on 8 February 2020 at 15:04

I have used this type of method many times for all kinds of natural features in my mapping. Well done.

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Comment from Lithium on 8 February 2020 at 16:46

Wow, that looks great!

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Comment from Bstn on 8 February 2020 at 22:31

For easier tracing one could also convert the black-white version into a vector file and load it into JOSM. Saves you some time :). However interesting approach!

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Comment from Alessa on 9 February 2020 at 00:06

Excellent job. I too have done tracing of images before, and the result is often quite good. Even the size is quite realistic. I also love that you're focusing on key physical features first instead of just jumping right into the human-development side of things.

One additional thing to consider is that craters of that size often have residual impacts, such as larger impact structures of smaller craters approaching (as the space object breaks apart) or could spur some interesting human development (e.g. Sudbury crater caused fissures in the crust that led to huge mining industries and development of an important city).

Excellent!

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Comment from iiEarth on 11 February 2020 at 23:34

Just saying; it isn't inspiration if you copied it.

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Comment from RubyIGuess on 12 February 2020 at 22:36

I guess I could have worded that a bit better.

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