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

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LevelDescription } "outputTypes": [ "png" "gif" "jpeg" ] LevelDescription 42 A LevelDescription object contains information about the number of map tiles on the horizontal and vertical axes, and the width and height in virtual pixels of the map image created in memory, for a given map zoom level. When a LevelDescription object is returned in an EnvinsaResponse JSON object, the LevelDescription object is always located in a JSON field named levelDescription. Fields A LevelDescription object contains the following fields: Field Name tileAcross tileDown virtualImageHeight virtualImageWidth Type Integer Integer Integer Integer Description The number of map tiles on the horizontal axis in this zoom level. The number of map tiles on the vertical axis in this zoom level. The height of the map image created in memory, measured in the virtual pixel space of the entire map image. (See note below.) The width of the map image created in memory, measured in the virtual pixel space of the entire map image. (See note below.) Note: Do not confuse coordinates in the virtual pixel space of the entire map image with normal screen pixel coordinates. Normal screen pixel coordinates always start with (0, 0) at the top left corner of the screen, regardless of what section of the entire map image is currently displayed in the screen. In contrast, the virtual pixel space of the map image is constant at any particular zoom level, regardless of what part of the map is currently displayed in the screen. So, for example, if a map image is set to zoom level 3, the map image is composed of 4 tiles across and 4 tiles down. If each tile has dimensions of 512 by 256 pixels, then the dimensions of the entire map image are 2048 by 1024 pixels. This is referred to as the virtual pixel space of the map image, because only a subsection of the entire image may be displayed in the screen at any one time. Example { "tileAcross": 2, MapInfo Spatial Server 1.0
} MapCoordinate "tileDown": 2, "virtualImageHeight": 512, "virtualImageWidth": 512 A MapCoordinate object contains the map coordinates for a location, and the coordinate system in which they are expressed. When a MapCoordinate object is returned in an EnvinsaResponse JSON object, the MapCoordinate object is always located in a JSON field named mapCoord. Fields A MapCoordinate object contains the following fields: Field Name point coordSys Example { } TileCoordinate Type "point": { "x": -79.377366 "y": 43.64713, }, coordSys": "epsg:4326" Point object CoordSys Description The point location expressed as map coordinates. See Point on page 47. The coordinate system of the location points. A TileCoordinate object contains the row and column number of a map tile. When a TileCoordinate object is returned in an EnvinsaResponse JSON object, the TileCoordinate object is always located in a JSON field named tileCoord. Fields A TileCoordinate object contains the following fields: Field Name row Map Tiling Service Guide Type Integer Description Chapter 4: Legacy Map Tiling Interface The row number of the map tile. Row numbering starts at the left, at number 1. 43
Page 1 and 2: MapInfo Spatial Server Version 1.0
Page 3 and 4: Contents Chapter 1: Introduction...
Page 5 and 6: Introduction The Map Tiling Service
Page 7 and 8: Managing Map Tiling Resources and C
Page 9 and 10: Parameter MimeList MapResolution Ma
Page 11 and 12: Parameter MinEvictableIdle- TimeMil
Page 13 and 14: 6. In the Save As dialog box, enter
Page 15 and 16: Parameter MinimumLevel MaximumLevel
Page 17: There is one restriction when defin
Page 20 and 21: What Is the Map Tiling REST Interfa
Page 22 and 23: Tile Tile 22 Returns A MapDescripti
Page 24 and 25: Objects Objects This section descri
Page 27 and 28: Legacy Map Tiling Interface This ch
Page 29 and 30: Example http://localhost:8080/rest/
Page 31 and 32: getTile Description Returns generat
Page 33 and 34: getTileBounds Description Returns t
Page 35 and 36: Parameter level screenX screenY vie
Page 37 and 38: name=/NamedTiles/WorldTile &level=4
Page 39 and 40: Parameters of the screen, regardles
Page 41: Field Name minLevel coordSys descri
Page 45 and 46: Common Data Types This appendix des
Page 47 and 48: Name Description in this table. An
Page 49 and 50: Errors This appendix describes the
Page 51: Code 8000 8001 8002 Message Map Til
Page 54 and 55: Transforming a Pixel to a Map Coord

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