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Fix mouse events on overzoomed canvas tiles #252

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Fix mouse events on overzoomed canvas tiles #252

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Commits on Dec 12, 2020

  1. Fix mouse events on overzoomed canvas tiles 

    When using maxZoom and maxNativeZoom to "overzoom" tiles to higher zoom
levels, the existing Canvas.Tile logic incorrectly calculates where the
mouse is within the tile, because it does not scale the real pixels to
the canvas' pixels, which are now 2, 4, 8, etc times larger. This means
that features cannot be hovered or clicked on.

This commit adds logic to scale offsets and mouse locations according to
the overzoom factor, which restores the behavior of non-overzoomed tiles.
    @zmbc
    zmbc committed Dec 12, 2020
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