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fegyi001 / mangol

Maps created with Angular & OpenLayers using Material design
http://188.166.116.137/mangol/
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Measured line length error #38

Closed szoki-moki closed 4 years ago

szoki-moki commented 4 years ago

Measure a line in Mangol and do the same in QGIS/Google Earth - the measurement in Mangol is much longer than in other softwares with the same projection.

fegyi001 commented 4 years ago

@szoki-moki thanks for this issue. This was quite an interesting one. As it turned out the problem was that the drawed geometry's built-in getLength() and getArea() functions were not returning precise values at all. Instead of using the built-in functions I had to use the getArea(geom) and getLength(geom) functions of the ol/sphere class as it resulted the correct values. Weird.

There is a new version out now (9.1.10-0.3) or visit the demo page at http://188.166.116.137/mangol/#/demo-measure, you can try it and close the issue if it works for you.

szoki-moki commented 4 years ago

The measurement results are correct now, also for area and radius measurements. Thanks for the quick fix!