MillerCylindricalProjection Class
Represents a cylindrical map projection, intended for world maps.
NuGet/Assembly: Carmenta.Engine.5.16.2.nupkg (in the CECore assembly)
Syntax
public class MillerCylindricalProjection : ProjectionRemarks
In 1942, Osborn Maitland Miller designed a cylindrical projection for world maps. It is similar to Mercator, but its polar areas are less enlarged, so that the poles appear at a finite distance from the equator. It can be regarded as a compromise between the Mercator projection and the equidistant cylindrical one.
The MillerCylindricalProjection of Carmenta Engine is more general than what it normally called the "Miller cylindrical". But as long as you use the default values for the StandardParallel and the Compromise parameters, you will get a traditional Miller cylindrical.
The shape of the Earth is assumed to be a sphere, with a radius equal to the equatorial radius of the ellipsoid of the geodetic datum that is used with the projection. But since the Miller projection is intended for displaying world maps, not for storing geodata, the exact choice of sphere radius is seldom important.
For sample maps, see Compromise and StandardParallel.
Inheritance Hierarchy
System.Object (not available in C#)
EngineObject
ResourceObject
Projection
MillerCylindricalProjection
Platforms
Windows, Linux, Android
MillerCylindricalProjection Members
The MillerCylindricalProjection type has the following members.
Constructors
| Name | Description |
|---|---|
| MillerCylindricalProjection | Initializes a new instance of the MillerCylindricalProjection class from parameters. |
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 | Gets the central longitude, also known as central meridian or longitude of origin. |
| Compromise | Gets the number that controls how Miller is blended from Mercator and Equidistant Cylindrical. |
| FalseEasting | Gets the offset added to the projected x coordinates (the eastings). |
| FalseNorthing | Gets the offset added to the projected y coordinates (the northings). |
| IsDisposed | Gets a value that tells whether the current MillerCylindricalProjection has been disposed. Inherited from EngineObject |
| LengthUnit | Gets 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 MillerCylindricalProjection. Inherited from ResourceObject |
| NativeHandle | Gets the native Carmenta Engine kernel object the current MillerCylindricalProjection represents. Inherited from EngineObject |
| StandardParallel | 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 |