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

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Parameter<br />

level<br />

screenX<br />

screenY<br />

view<br />

output<br />

Example<br />

Type<br />

Integer<br />

Integer<br />

Integer<br />

Bounds<br />

String<br />

Required<br />

yes<br />

yes<br />

yes<br />

yes<br />

yes<br />

Description<br />

Specifies the map zoom level.<br />

This parameter must be set to a value greater than<br />

or equal to the minLevel value and less than or<br />

equal to the maxLevel value for the named map.<br />

You can determine these values by calling the<br />

getDescription method and examining the returned<br />

<strong>Map</strong>Description object. For more information, see<br />

getDescription on page 29 and <strong>Map</strong>Description<br />

on page 40.<br />

Specifies the x coordinate value of the point in the<br />

view to be converted. This point is specified from<br />

the upper left corner of the view in pixels.<br />

Specifies the y coordinate value of the point in the<br />

view to be converted. This point is specified from<br />

the upper left corner of the view in pixels.<br />

Specifies the geographic bounds of the view that<br />

displays the map, expressed in terms of the map's<br />

coordinate system.<br />

Specifies the response format. Must be json.<br />

http://localhost:8080/rest/Enterprise<strong>Map</strong>ping/Legacy<strong>Map</strong><strong>Tiling</strong><strong>Service</strong>/convertScreenTo<strong>Map</strong>Coord?<br />

name=/NamedTiles/WorldTile<br />

&level=4<br />

&screenX=100<br />

&screenY=100<br />

&view=-20000000,20000000,20000000,-20000000<br />

&output=json<br />

The above example will return the following JSON response object:<br />

{"EnvinsaResponse":{"mapCoord":{"coordSys":"epsg:41001","point":{"x":-<br />

1.8045920859794818E7,"y":1.8045920859794818E7}},"type":"<strong>Map</strong><strong>Tiling</strong>Response"}}<br />

Returns<br />

A <strong>Map</strong>Coordinate object as seen in the above sample. See <strong>Map</strong>Coordinate on page 43.<br />

<strong>Map</strong> <strong>Tiling</strong> <strong>Service</strong> Guide<br />

Chapter 4: Legacy <strong>Map</strong> <strong>Tiling</strong> Interface<br />

35

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