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

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VirtualPixelCoordinate Field Name column Example { } "row": 1, "column": 8 VirtualPixelCoordinate 44 Type Integer Description The column number of the map tile. Column numbering starts at the top, at number 1. A VirtualPixelCoordinate object contains the x and y coordinates of a pixel in the virtual pixel space of the entire map image. 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. When a VirtualPixelCoordinate object is returned in an EnvinsaResponse JSON object, the VirtualPixel- Coordinate object is always located in a JSON field named virtualPixelCoord. Fields A VirtualPixelCoordinate object contains the following fields: Field Name virtualX virtualY Example { } "virtualX": 256, "virtualY": 300 Type Integer Integer Description The x coordinate of the virtual pixel. The x coordinate numbering starts at the left edge of the left-most tile of the map image, at number 0. The y coordinate of the virtual pixel. The y coordinate numbering starts at the top edge of the top-most tile of the map image, at number 0. MapInfo Spatial Server 1.0
Common Data Types This appendix describes the data types that can be passed as URL parameters to a Map Tiling Interface method, and which may be contained in the returned JSON object. In this section: • Request URL Data Types . . . . . . . . . . . . . . . . . . . . . . . . . .46 • Response JSON Data Types . . . . . . . . . . . . . . . . . . . . . . .47 A
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 and 42: Field Name minLevel coordSys descri
Page 43: } MapCoordinate "tileDown": 2, "vir
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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