Category Archives: Miscellaneous

Automatic Camera Clock Synchronization under Linux

The one feature I really wish my DSLR had was geotagging. Since my camera lacks this feature, I need to record a GPS track with an external device from which positions can be extracted based on timestamps for geotagging. This … Continue reading

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OpenStreetMap Baltimore City Buildings and Addresses Import

Two years ago, I started trying to import building footprints and addresses provided by the City of Baltimore into OpenStreetMap but was held up by red tape and eventually gave up.1 The City provides building footprints and parcel data on … Continue reading

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Another Beamer Theme Matrix

The Beamer package for creating presentation slides has hundreds of styles available between all of the combinations of its included themes and color themes. Therefore, it is helpful to be able to look through all the possibilities in order to … Continue reading

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Using Marine Gravity Anomaly Map with Mapbox GL

Yesterday, a paper was published in Science on the creation of new, higher resolution maps of the ocean floor using gravity anomaly data collected via satellite. The authors write, “at scales smaller than 200 km, variations in marine gravity primarily reflect … Continue reading

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10 Things that are Like Attributing a Photo on Wikipedia to Wikipedia

Often, people copy images from Wikipedia without citation. Of those who do cite their photos, many just cite “Wikipedia” or “Wikimedia Commons,” which does not attribute the photographer and therefore does not constitute a proper citation. Due to this common … Continue reading

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