C1.Win.Map.IMapVirtualSource.Request
Request Method
Request(double, double, Point, Point)
Called from VirtualLayer when new items are needed for a map region.
Declaration
IEnumerable<VectorItem> Request(double minZoom, double maxZoom, Point lowerLeft, Point upperRight)Parameters
| Type | Name | Description |
|---|---|---|
| double | minZoom | The minimum zoom of the region. |
| double | maxZoom | The maximum zoom of the region. |
| Point | lowerLeft | The lower left coordinate of the region, in geographic coordinates. |
| Point | upperRight | The upper right coordinate of the region, in geographic coordinates. |
Returns
| Type | Description |
|---|---|
| IEnumerable<VectorItem> | The items in the region. |