add a metersPerPixel method, will transition constants to it (better for fractional zoom)
add a metersPerPixel method, will transition constants to it (better for fractional zoom)

tangrams/tangram,ceseale/tangram,taylorhxu/tangram,ceseale/tangram,TitoAgudelo/tangram,DHaylock/tangram,rosamcgee/tangram,TitoAgudelo/tangram,taylorhxu/tangram,xvilan/tangram,DHaylock/tangram,DHaylock/tangram,xvilan/tangram,tangrams/tangram,rosamcgee/tangram,taylorhxu/tangram,TitoAgudelo/tangram,rosamcgee/tangram,zerebubuth/tangram,zerebubuth/tangram,ceseale/tangram,zerebubuth/tangram,xvilan/tangram