MapArguments¶
Namespace: ThinkGeo.Core
Contains important properties and methods of current map object.
public class MapArguments
Inheritance Object → MapArguments
Properties¶
MapUnit¶
Gets or sets the GeographyUnit for the map.
public GeographyUnit MapUnit { get; set; }
Property Value¶
The GeographyUnit object that indicates which geography unit the
map is currently using.
ScreenWidth¶
Gets or sets the width of current map object in screen coordinate.It would be the same as ScreenHeight if the map is in rotation
public double ScreenWidth { get; set; }
Property Value¶
ScreenHeight¶
Gets or sets the height of current map object in screen coordinate.It would be the same as ScreenHeight if the map is in rotation
public double ScreenHeight { get; set; }
Property Value¶
MapWidth¶
public double MapWidth { get; set; }
Property Value¶
MapHeight¶
public double MapHeight { get; set; }
Property Value¶
RotationAngle¶
public double RotationAngle { get; set; }
Property Value¶
ZoomLevelSet¶
This property gets or sets the ZoomLevelSet used for the MapView control.
public ZoomLevelSet ZoomLevelSet { get; set; }
Property Value¶
ZoomLevelSet
The zoom level set.
CustomData¶
Gets the custom data.
public Dictionary<string, object> CustomData { get; }
Property Value¶
Dictionary<String, Object>
The custom data.
PivotScreenPoint¶
public ScreenPointF PivotScreenPoint { get; set; }
Property Value¶
PivotWorldPoint¶
public PointShape PivotWorldPoint { get; set; }
Property Value¶
ZoomLevelScales¶
Gets a collection of double values that determines the zoomlevel scales.
public Collection<double> ZoomLevelScales { get; }
Property Value¶
A collection of double values that determines the openlayers' zoomlevel
scales.
CurrentResolution¶
Gets or sets a double value that indicates the current resolution of the map.
public double CurrentResolution { get; set; }
Property Value¶
Double
A double value that indicates the current resolution of the map.
CurrentScale¶
Gets or sets the scale factor, this is a value number of device pixels per logical coordinate point.
public double CurrentScale { get; set; }
Property Value¶
The scale factory value.
Remarks:
The coordinate space used by application developers is measured in logical points. High-resolution (Retina) displays will have more than a single physical pixel per logical point and this property specifies the scale factor.
MaximumScale¶
This property gets and sets a maximum scale when navigating the map.
When you keep zooming out, and the target scale is bigger than the maximum scale, the zooming operation will be stopped.
public double MaximumScale { get; set; }
Property Value¶
MinimumScale¶
This property gets and sets a minimum scale when navigating the map.
When you keep zooming in, and the target scale is smaller than the minimum scale, the zooming operation will be stopped.
public double MinimumScale { get; set; }
Property Value¶
CurrentExtent¶
Gets or sets the extent of current map.
public RectangleShape CurrentExtent { get; set; }
Property Value¶
CenterPoint¶
public PointShape CenterPoint { get; set; }
Property Value¶
MaxExtent¶
Gets or sets the max extent of current map.
public RectangleShape MaxExtent { get; set; }
Property Value¶
ScaleFactor¶
public float ScaleFactor { get; set; }
Property Value¶
ZoomLevelSnappingMode¶
public ZoomLevelSnappingMode ZoomLevelSnappingMode { get; set; }
Property Value¶
RotationEnabled¶
public bool RotationEnabled { get; set; }
Property Value¶
Constructors¶
MapArguments()¶
Constructor of MapArguments.
public MapArguments()
MapArguments(RectangleShape, GeographyUnit, Single, Single)¶
Initializes a new instance of the MapArguments class.
public MapArguments(RectangleShape currentExtent, GeographyUnit mapUnit, float screenWidth, float screenHeight)
Parameters¶
currentExtent RectangleShape
The current extent.
mapUnit GeographyUnit
The map unit.
screenWidth Single
Width of the screen.
screenHeight Single
Height of the screen.
Methods¶
ToWorldCoordinate(ScreenPointF)¶
Converts a point from screen coordinate to world coordinate.
public PointShape ToWorldCoordinate(ScreenPointF screenCoordinate)
Parameters¶
screenCoordinate ScreenPointF
A point in screen coordinate to be converted.
Returns¶
PointShape
A point in world coordinate.
GetSnappedZoomLevelIndex(RectangleShape)¶
Gets a snapped zoom level index from the provided extent.
public int GetSnappedZoomLevelIndex(RectangleShape extent)
Parameters¶
extent RectangleShape
An extent to be snapped.
Returns¶
Int32
An integar value that indicates the snapped zoom level index.
Remarks:
The extent will automatically snapped a closest scale from the ZoomLevelScale list, and create an extent back with the map's screen width and height.
GetSnappedZoomLevelIndex(Double)¶
Gets a snapped zoom level index from the provided scale.
public int GetSnappedZoomLevelIndex(double scale)
Parameters¶
scale Double
A scale to be snapped.
Returns¶
Int32
An integar value that indicates the snapped zoom level index.
Remarks:
The scale will automatically snapped a closest scale from the ZoomLevelScale list, and create an extent back with the map's screen width and height.
GetSnappedExtent(RectangleShape, ZoomSnapDirection)¶
public RectangleShape GetSnappedExtent(RectangleShape extent, ZoomSnapDirection zoomSnapDirection)
Parameters¶
extent RectangleShape
zoomSnapDirection ZoomSnapDirection