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[Core] Ensure queryRenderedFeatures accounts for icons with *-offset … #13105

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merged 5 commits into from Oct 18, 2018

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ryanhamley
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Fixes #12909 and implements #11872

This is a pretty straightforward port of mapbox/mapbox-gl-js#6631 which allows icons with icon-rotate and icon-offset to show up in queryRenderedFeatures results as expected.

@ryanhamley ryanhamley added GL JS parity For feature parity with Mapbox GL JS Core The cross-platform C++ core, aka mbgl needs changelog Indicates PR needs a changelog entry prior to merging. labels Oct 16, 2018
@mollymerp
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looks like you need to update the tests in cross_tile_symbol_index.test.cpp – you can run the tests locally by using the mbgl-test scheme in xcode or make test in terminal

const Point<float> bl = util::rotate(Point<float>(x1, y2), rotateRadians);
const Point<float> br = util::rotate(Point<float>(x2, y2), rotateRadians);

const float xMin = std::min({tl.x, tr.x, bl.x, br.x});
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Could you bring over the comments from GL JS here or something similar? I think the "we have to represent on-axis geometry, so take the envelope of the rotated geometry" step is fairly non-obvious to someone casually browsing the code.

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I just copied over your comments

@ChrisLoer
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Overall this looks great to me! 🚀

@ryanhamley
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@mollymerp Thanks for pointing that out! I was having trouble figuring out why the tests broke once I rebased against master.

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🍏 after squashing the fixup commits

@ryanhamley ryanhamley merged commit 0c6b162 into master Oct 18, 2018
@ryanhamley ryanhamley deleted the fix-rotated-icon-query branch October 18, 2018 19:14
@friedbunny friedbunny removed needs changelog Indicates PR needs a changelog entry prior to merging. labels Oct 31, 2018
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4 participants