(Skip to the demo?) I remember when it was a big deal when web maps started allowed arbitrary slipping and sliding, instead of moving in fixed increments. Then, it was super cool once we could rotate a map an arbitrary direction – north didn’t have to be up anymore! Then GPS navigation made everyone familiar with the pitch of a map as an adjustable quantity too. But there are more ways of adjusting a projection! Since Mapbox GL renders everything using WebGL on a canvas natively, it is st...
