EquidistantCylindricalProjection Class
A map projection, also known as Equirectangular, Simple Cylindrical, or Plate Carrée.
NuGet/Assembly: Carmenta.Engine.5.16.2.nupkg (in the CECore assembly)
Syntax
public class EquidistantCylindricalProjection : ProjectionRemarks
This is the simplest map projection. It is normally used in its spherical variant, where easting is proportional to longitude, and northing is proportional to latitude. When the standard parallel is the equator, small geographic features keep their shape near the equator, and the projection is also known as Plate Carrée (meaning flat and square). If you use a different standard parallel, the map will be squeezed in the west-east direction to ensure that small features keep their shape near the standard parallel.
There is also an ellipsoid variant, where easting is still proportional to longitude, but northing is proportional to the distance to the equator along a meridian, which is a measure that is not quite proportional to latitude (due to the flattening of the ellipsoid).
Like most other kinds of Projection, this one requires an ordinary LengthUnit. If you instead want your projected coordinates to be expressed in an angle unit like degree or gon, you should use the similar projection EquidistantCylindricalAngularProjection.
Inheritance Hierarchy
System.Object (not available in C#)
EngineObject
ResourceObject
Projection
EquidistantCylindricalProjection
Platforms
Windows, Linux, Android
EquidistantCylindricalProjection Members
The EquidistantCylindricalProjection type has the following members.
Constructors
| Name | Description |
|---|---|
| EquidistantCylindricalProjection | Initializes a new instance of the EquidistantCylindricalProjection class. |
Properties
| Name | Description |
|---|---|
| Authority | Gets the name of an authority, which is often "epsg". Inherited from Projection |
| AuthorityCode | Gets the unique code for the projection instance, according to the Authority, for example "19883". Inherited from Projection |
| CentralLongitude | The central longitude, also known as central meridian or longitude of origin. |
| FalseEasting | Offset for the x coordinates. |
| FalseNorthing | Offset for the y coordinates. |
| IsDisposed | Gets a value that tells whether the current EquidistantCylindricalProjection has been disposed. Inherited from EngineObject |
| LengthUnit | The length unit of the projected coordinates. |
 LongLat | Gets a pre-defined LongLatProjection instance. Inherited from Projection |
| Name | Gets or sets the name of the EquidistantCylindricalProjection. Inherited from ResourceObject |
| NativeHandle | Gets the native Carmenta Engine kernel object the current EquidistantCylindricalProjection represents. Inherited from EngineObject |
| Shape | Tells whether the earth is modelled as an ellipsoid or as a sphere. |
| SphereRadius | Gets an explicitly specified sphere radius. |
| SphereRadiusSource | Gets a value that tells how the sphere radius is determined. |
| StandardParallel | Gets the latitude of the standard parallel, on which the scale is true. |
| IUserProperties.UserProperties | Gets the AttributeSet that contains the user properties. Inherited from IUserProperties |
Methods
| Name | Description |
|---|---|
| Clone | Creates a copy of an object. Inherited from EngineObject |
| Dispose | Releases the reference to the native Carmenta Engine kernel instance the EngineObject represents. Inherited from EngineObject |
| Equals | Determines whether this instance is equal to another. Inherited from EngineObject |
| Utm | Returns one of the 120 predefined instances of Universal Transverse Mercator. Inherited from Projection |