java.lang.Object
- ucar.unidata.geoloc.ProjectionImpl
- - ucar.unidata.geoloc.projection.Orthographic

All Implemented Interfaces:

Serializable, Projection
```
public class Orthographic
extends ProjectionImpl
```
Orthographic Projection spherical earth.
See John Snyder, Map Projections used by the USGS, Bulletin 1532, 2nd edition (1983), p 145

See Also:

Projection, ProjectionImpl, Serialized Form

Field Summary
- Fields inherited from class ucar.unidata.geoloc.ProjectionImpl
  atts, defaultMapArea, defaultUnits, EARTH_RADIUS, INDEX_LAT, INDEX_LON, INDEX_X, INDEX_Y, isLatLon, name, PI, PI_OVER_2, PI_OVER_4, TOLERANCE

Constructor Summary

Constructors
Constructor	Description
`Orthographic()`	Constructor with default parameters
`Orthographic(double lat0, double lon0)`	Construct a Orthographic Projection.
`Orthographic(double lat0, double lon0, double earthRadius)`	Construct a Orthographic Projection, specify earth radius

Method Summary

All Methods Instance Methods Concrete Methods Deprecated Methods
Modifier and Type	Method	Description
`ProjectionImpl`	`constructCopy()`	copy constructor - avoid clone !!
`boolean`	`crossSeam(ProjectionPoint pt1, ProjectionPoint pt2)`	This returns true when the line between pt1 and pt2 crosses the seam.
`boolean`	`equals(Object o)`	Returns true if this represents the same Projection as proj.
`double`	`getOriginLat()`	Get the origin latitude in degrees
`double`	`getOriginLon()`	Get the origin longitude in degrees
`String`	`getProjectionTypeLabel()`	Get the label to be used in the gui for this type of projection
`int`	`hashCode()`
`double[][]`	`latLonToProj(double[][] from, double[][] to, int latIndex, int lonIndex)`	Convert lat/lon coordinates to projection coordinates.
`float[][]`	`latLonToProj(float[][] from, float[][] to, int latIndex, int lonIndex)`	Convert lat/lon coordinates to projection coordinates.
`ProjectionPoint`	`latLonToProj(LatLonPoint latLon, ProjectionPointImpl result)`	Convert a LatLonPoint to projection coordinates
`String`	`paramsToString()`	Create a String of the parameters.
`double[][]`	`projToLatLon(double[][] from, double[][] to)`	Convert lat/lon coordinates to projection coordinates.
`float[][]`	`projToLatLon(float[][] from, float[][] to)`	Convert lat/lon coordinates to projection coordinates.
`LatLonPoint`	`projToLatLon(ProjectionPoint world, LatLonPointImpl result)`	Convert projection coordinates to a LatLonPoint Note: a new object is not created on each call for the return value.
`void`	`setOriginLat(double lat)`	Deprecated.
`void`	`setOriginLon(double lon)`	Deprecated.
`String`	`toString()`	Get a String representation of this projection.

Methods inherited from class ucar.unidata.geoloc.ProjectionImpl
addParameter, addParameter, addParameter, findProjectionParameter, getClassName, getDefaultMapArea, getDefaultMapAreaLL, getDefaultUnits, getHeader, getName, getProjectionParameters, isLatLon, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProj, latLonToProjBB, projToLatLon, projToLatLon, projToLatLon, projToLatLonBB, projToLatLonBBold, setDefaultMapArea, setName

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface ucar.unidata.geoloc.Projection
latLonToProj, projToLatLon

- Constructor Detail
  - Orthographic
```
public Orthographic()
```
    Constructor with default parameters
  - Orthographic
```
public Orthographic(double lat0,
                    double lon0)
```
    Construct a Orthographic Projection.
    
    Parameters:
    
    lat0 - lat origin of the coord. system on the projection plane
    
    lon0 - lon origin of the coord. system on the projection plane
  - Orthographic
```
public Orthographic(double lat0,
                    double lon0,
                    double earthRadius)
```
    Construct a Orthographic Projection, specify earth radius
    
    Parameters:
    
    lat0 - lat origin of the coord. system on the projection plane
    
    lon0 - lon origin of the coord. system on the projection plane
    
    earthRadius - radius of the earth
    
    Throws:
    
    IllegalArgumentException - if lat0, par1, par2 = +/-90 deg
- Method Detail
  - constructCopy
```
public ProjectionImpl constructCopy()
```
    Description copied from class: ProjectionImpl
    
    copy constructor - avoid clone !!
    
    Specified by:
    
    constructCopy in class ProjectionImpl
    
    Returns:
    
    a copy of this Projection. TODO return Projection in ver6
  - equals
```
public boolean equals(Object o)
```
    Description copied from class: ProjectionImpl
    
    Returns true if this represents the same Projection as proj.
    
    Specified by:
    
    equals in interface Projection
    
    Specified by:
    
    equals in class ProjectionImpl
    
    Parameters:
    
    o - projection in question
    
    Returns:
    
    true if this represents the same Projection as proj.
  - hashCode
```
public int hashCode()
```
    Overrides:
    
    hashCode in class Object
  - getOriginLon
```
public double getOriginLon()
```
    Get the origin longitude in degrees
    
    Returns:
    
    the origin longitude.
  - getOriginLat
```
public double getOriginLat()
```
    Get the origin latitude in degrees
    
    Returns:
    
    the origin latitude.
  - setOriginLon
```
@Deprecated
public void setOriginLon(double lon)
```
    Deprecated.
    
    Set the origin longitude.
    
    Parameters:
    
    lon - the origin longitude.
  - setOriginLat
```
@Deprecated
public void setOriginLat(double lat)
```
    Deprecated.
    
    Set the origin latitude.
    
    Parameters:
    
    lat - the origin latitude.
  - getProjectionTypeLabel
```
public String getProjectionTypeLabel()
```
    Get the label to be used in the gui for this type of projection
    
    Overrides:
    
    getProjectionTypeLabel in class ProjectionImpl
    
    Returns:
    
    Type label
  - paramsToString
```
public String paramsToString()
```
    Create a String of the parameters.
    
    Specified by:
    
    paramsToString in interface Projection
    
    Specified by:
    
    paramsToString in class ProjectionImpl
    
    Returns:
    
    a String of the parameters
  - toString
```
public String toString()
```
    Description copied from class: ProjectionImpl
    
    Get a String representation of this projection.
    
    Overrides:
    
    toString in class ProjectionImpl
    
    Returns:
    
    the name of the projection. This is what gets displayed when you add the projection object to a UI widget (e.g. label, combobox)
  - crossSeam
```
public boolean crossSeam(ProjectionPoint pt1,
                         ProjectionPoint pt2)
```
    This returns true when the line between pt1 and pt2 crosses the seam. When the cone is flattened, the "seam" is lon0 +- 180.
    
    Specified by:
    
    crossSeam in interface Projection
    
    Specified by:
    
    crossSeam in class ProjectionImpl
    
    Parameters:
    
    pt1 - point 1
    
    pt2 - point 2
    
    Returns:
    
    true when the line between pt1 and pt2 crosses the seam.
  - latLonToProj
```
public ProjectionPoint latLonToProj(LatLonPoint latLon,
                                    ProjectionPointImpl result)
```
    Description copied from class: ProjectionImpl
    
    Convert a LatLonPoint to projection coordinates
    
    Specified by:
    
    latLonToProj in interface Projection
    
    Specified by:
    
    latLonToProj in class ProjectionImpl
    
    Parameters:
    
    latLon - convert from these lat, lon coordinates
    
    result - the object to write to
    
    Returns:
    
    the given destPoint
  - projToLatLon
```
public LatLonPoint projToLatLon(ProjectionPoint world,
                                LatLonPointImpl result)
```
    Description copied from class: ProjectionImpl
    
    Convert projection coordinates to a LatLonPoint Note: a new object is not created on each call for the return value.
    
    Specified by:
    
    projToLatLon in interface Projection
    
    Specified by:
    
    projToLatLon in class ProjectionImpl
    
    Parameters:
    
    world - convert from these projection coordinates
    
    result - the object to write to
    
    Returns:
    
    LatLonPoint convert to these lat/lon coordinates
  - latLonToProj
```
public float[][] latLonToProj(float[][] from,
                              float[][] to,
                              int latIndex,
                              int lonIndex)
```
    Convert lat/lon coordinates to projection coordinates.
    
    Overrides:
    
    latLonToProj in class ProjectionImpl
    
    Parameters:
    
    from - array of lat/lon coordinates: from[2][n], where from[0][i], from[1][i] is the (lat,lon) coordinate of the ith point
    
    to - resulting array of projection coordinates, where to[0][i], to[1][i] is the (x,y) coordinate of the ith point
    
    latIndex - index of latitude in "from"
    
    lonIndex - index of longitude in "from"
    
    Returns:
    
    the "to" array.
  - projToLatLon
```
public float[][] projToLatLon(float[][] from,
                              float[][] to)
```
    Convert lat/lon coordinates to projection coordinates.
    
    Overrides:
    
    projToLatLon in class ProjectionImpl
    
    Parameters:
    
    from - array of lat/lon coordinates: from[2][n], where (from[0][i], from[1][i]) is the (lat,lon) coordinate of the ith point
    
    to - resulting array of projection coordinates: to[2][n] where (to[0][i], to[1][i]) is the (x,y) coordinate of the ith point
    
    Returns:
    
    the "to" array
  - latLonToProj
```
public double[][] latLonToProj(double[][] from,
                               double[][] to,
                               int latIndex,
                               int lonIndex)
```
    Convert lat/lon coordinates to projection coordinates.
    
    Overrides:
    
    latLonToProj in class ProjectionImpl
    
    Parameters:
    
    from - array of lat/lon coordinates: from[2][n], where from[0][i], from[1][i] is the (lat,lon) coordinate of the ith point
    
    to - resulting array of projection coordinates, where to[0][i], to[1][i] is the (x,y) coordinate of the ith point
    
    latIndex - index of latitude in "from"
    
    lonIndex - index of longitude in "from"
    
    Returns:
    
    the "to" array.
  - projToLatLon
```
public double[][] projToLatLon(double[][] from,
                               double[][] to)
```
    Convert lat/lon coordinates to projection coordinates.
    
    Overrides:
    
    projToLatLon in class ProjectionImpl
    
    Parameters:
    
    from - array of lat/lon coordinates: from[2][n], where (from[0][i], from[1][i]) is the (lat,lon) coordinate of the ith point
    
    to - resulting array of projection coordinates: to[2][n] where (to[0][i], to[1][i]) is the (x,y) coordinate of the ith point
    
    Returns:
    
    the "to" array

Class Orthographic

Field Summary

Fields inherited from class ucar.unidata.geoloc.ProjectionImpl

Constructor Summary

Method Summary

Methods inherited from class ucar.unidata.geoloc.ProjectionImpl

Methods inherited from class java.lang.Object

Methods inherited from interface ucar.unidata.geoloc.Projection

Constructor Detail

Orthographic

Orthographic

Orthographic

Method Detail

constructCopy

equals

hashCode

getOriginLon

getOriginLat

setOriginLon

setOriginLat

getProjectionTypeLabel

paramsToString

toString

crossSeam

latLonToProj

projToLatLon

latLonToProj

projToLatLon

latLonToProj

projToLatLon