complexType ZoomVisibilityConstraint
diagram mapping_p478.png
namespace http://www.mapinfo.com/midev/service/mappingcommon/v1
type extension of tns:VisibilityConstraint
properties
base tns:VisibilityConstraint
children tns:MaxZoom tns:MinZoom
annotation
documentation
Controls the display at certain zoom levels. Also known as zoom layering, the display of the theme or overlay is controlled to the display only when the map's zoom level falls within a preset distances. Setting visibility constraints is one of the most important factors to increase the performance of rendering maps.

element ZoomVisibilityConstraint/MaxZoom
diagram mapping_p479.png
namespace http://www.mapinfo.com/midev/service/mappingcommon/v1
type tns:Distance
properties
content complex
attributes
Name  Type  Use  Default  Fixed  Annotation
uom  tns:DistanceUnit  required      
documentation
The unit of measure for this distance.
annotation
documentation
The maximum zoom level to display the theme or overlay. Rendering will only occur at zoom levels less than the maximum zoom.

element ZoomVisibilityConstraint/MinZoom
diagram mapping_p480.png
namespace http://www.mapinfo.com/midev/service/mappingcommon/v1
type tns:Distance
properties
content complex
attributes
Name  Type  Use  Default  Fixed  Annotation
uom  tns:DistanceUnit  required      
documentation
The unit of measure for this distance.
annotation
documentation
The minimum zoom level to display the theme or overlay. Rendering will only occur at zoom levels greater than the minimum zoom.


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