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Ilya Zverev

Tested SketchMapTool by @heigit, from the recent grant news. Printing a map works fine, GeoTIFF referencing works as expected (from a file, not a scanned copy). Still, nothing new over fieldpapers.org/

Was intrigued with its vector detection. The resulting GeoJSON was incorrect (not WGS-84 and polygons are wrong), but QGIS reads it. Scribbles are imported as polygons, so there's not much benefit over GeoTIFF.

Try it here: sketch-map-tool.heigit.org/

Map of a Saku town area printed with SketchMap. There are pink and green drawings on it.
Screenshot of QGIS with scribbles detected by SketchMap.
3 comments
HeiGIT

@zverik Hi, thanks a lot for testing our tool and getting in touch! In our next project phase, we will also work hard on improving the SMT, so your feedback helps us a great deal 🤝

We want to encourage our followers to test our tools and reach out to us for suggestions and constructive critique! 👍

Greetings from Heidelberg!

Ilya Zverev

@heigit great to hear from you, looking forward to meeting in person in Antwerp :)

Regarding the vectorization, I think it's important to tell lines from polygons — at least for waking papers-type of surveying, when we draw missing fences and roads.

Also, the requirement for different colors was weird. Again, that concerns polygons, I think. People usually use pens, blue and black. But then it'd be hard to know what is old and what is new. So a link to a source image might help.

HeiGIT

@zverik Thanks so much for your input, all is being forwarded to our SMT-team 🤝

Glad to hear we'll be meeting you in November :) #SOTMEU23

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