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How to get Data from an Android phone and visualise it with terraink.app and Inkscape

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In 2024, Google announced that they would begin storing your Timeline data (i.e. your Location History) locally on your device rather than in the cloud on their systems. The desktop version of the Timeline viewer was also discontinued since the data is now stored on your phone. But you are still able to export your timeline data How to obtain your Timeline JSON file: The most reliable way to obtain a compatible JSON file appears to be via your Android device's system settings, as direct export from the Google Maps app's main interface may no longer be available or straightforward: Navigate to your Android device's Settings . Go to Location . Select Location Services (or a similar entry, this may vary slightly by Android version/manufacturer). Tap on Google Location History or Timeline . Select your Google Account (if you have multiple). Look for and click on an option like "Export Timeline Data" or "Download a copy of ...

Pimp your IKEA LAMPAN with Inkscape

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You can easily pimp your IKEA LAMPAN by adding a paper cutting inside: The Math First we have to do some math. The lampshade is a geometric shape, a truncated cone. The pattern is part of a circular ring, i.e. a circular sector from which a second sector is cut out: The theorem of Pythagoras gives m = √ h²+(R-r)² and from the theorem of rays we get the equation R/r = M/(M-m). Thus: M = m-R/(R-r) applies. The sketch also shows: 2R-π = 2M-π-(α/α) and from this follows α = 2π-R/M - that is 360-R/M degrees. With this information you can create something like this in Inkscape: Bending a rectangular You can now start editing. But I like it more to work on an rectangular shape. Therefore I'll add some helping lines. I insert an additional node on the left and on the right: Then I create a centre line as helper for the next steps and use the extension "Draw Handles": I changed the colour to grey to make the handles more visible: Now I can start t...