KMLRegionSetter

This parameter specifies whether or not the bounding box of the region should be computed from the bounding box of the feature's geometry.

If the value is Yes, the bounding box will be computed; if necessary, the calculated bounding box will be reprojected to the LL84 coordinate system. A valid coordinate system is required for the bounding box to be calculated.

Note:Setting a value of Yes on point features is not recommended because they have no area and will generate an infinitely small bounding box.

This parameter is only available when the region bounding box is being calculated from the bounding box of the feature geometry. It may be used to make the bounding box of the KML region larger (or smaller) than the bounding box of the geometry. The geometry bounding box will be expanded (or decreased if the value is negative) on all sides, by the value of the parameter. The parameter value should be given in degrees of latitude/longitude.

Minimum Pixels specifies the minimum size, in pixels, in the user's Google Earth view, that the region's bounding box must occupy before the region will become active – that is, when zooming in, at what point the feature should appear.

The smaller the value, the sooner the feature will appear when zooming into the view. A value in the range of 256 to 512 is recommended.

Maximum Pixels specifies the maximum size, in pixels, in the user's Google Earth view, that the region's bounding box may occupy before the region will be deactivated – that is, when zooming in, at what point the feature should disappear again.

The smaller the value, the sooner the feature will disappear when zooming into the view. A value of -1 (infinite) is recommended. It means there is no maximum size and, once the feature has appeared, zooming in further will not cause it to disappear.

This parameter specifies an offset to Minimum Pixels, in pixels, that determines the rate at which the region will be activated, and its contents displayed.

A value of 0 (immediate transition) is recommended.

该参数指定偏移到最大像素，以像素为单位，以确定该区域将被停用的速率及其内容隐藏的速率。

A value of 0 (immediate transition) is recommended.

这些参数在LL84坐标系中指定坐标，该系列定义区域边界框的边界。