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NASAWorldWind / WorldWindJava

The NASA WorldWind Java SDK (WWJ) is for building cross-platform 3D geospatial desktop applications in Java.
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Unable to drag shapes over the antimeridian on 2D globe #44

Closed zglueck closed 7 years ago

zglueck commented 7 years ago

Use the DraggingShapes example and switch to flat globe. Attempt to drag shape across the antemeridian, shape will stop on the antemeridian.

zglueck commented 7 years ago

It does work using the WorldWind.ABSOLUTE altitude mode. Perhaps this is a intersection calculation issue with terrain in a flat globe.

zglueck commented 7 years ago

Noticed the offset coordinate determination in computeScreenOffsetFromReferencePosition used a pattern that would break in certain cases, specifically when an altitude mode other than absolute was used and the click offset to the reference position spanned the antimeridian. Correcting to match the pattern used in 8c127c1.