MapInfo Spatial Server Map Tiling Service - Product Documentation ...

How Pixels, Tiles, and Map
Coordinates are
Transformed
The following sections provide background information on the underlying process
used by the Map Tiling Interface methods to perform transformations between
pixels, tiles and coordinate systems. These transformations enable applications
to return, pan, zoom, and display the appropriate tile.
The Map Tiling Interface methods convertScreenToMapCoord, convertScreenToTileCoord,
convertMapToVirtualPixelCoord and convertMapToTileCoord
provide a much easier way to perform the transformations
described in the following sections. For information on these methods, see convertScreenToMapCoord
on page 34, convertScreenToTileCoord on page 36,
convertMapToVirtualPixelCoord on page 38 and convertMapToTileCoord on
page 37.
In this section:
• Transforming a Pixel to a Map Coordinate . . . . . . . . . . . .54
• Transforming a Pixel to a Tile Coordinate . . . . . . . . . . . .54
• Transforming a Map Coordinate to a Tile Coordinate . . .55
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