com.bbn.openmap.proj
Class OrthographicView

java.lang.Object
  |
  +--com.bbn.openmap.proj.Proj
        |
        +--com.bbn.openmap.proj.Azimuth
              |
              +--com.bbn.openmap.proj.Orthographic
                    |
                    +--com.bbn.openmap.proj.OrthographicView

All Implemented Interfaces:

java.lang.Cloneable, Projection, java.io.Serializable

public class OrthographicView

extends Orthographic

Implements the OrthographicView projection.

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class com.bbn.openmap.proj.Azimuth

Azimuth.AzimuthVar

Field Summary

protected int	dUSX
protected int	dUSY
static java.lang.String	OrthographicViewName The OrthographicView name.
static int	OrthographicViewType The OrthographicView type of projection.
protected int	sCtrX
protected int	sCtrY
protected LatLonPoint	uCtr
protected float	uCtrLat
protected float	uCtrLon
protected int	uCtrX
protected int	uCtrY

Fields inherited from class com.bbn.openmap.proj.Orthographic

cosCtrLat, epsilon, hy, NORTH_BOUNDARY, OrthographicName, OrthographicType, sinCtrLat, SOUTH_BOUNDARY, wx

Fields inherited from class com.bbn.openmap.proj.Azimuth

clockwise, spaceColor, world

Fields inherited from class com.bbn.openmap.proj.Proj

ctrLat, ctrLon, DATELINE, height, maxscale, mercator, MIN_HEIGHT, MIN_WIDTH, minscale, NORTH_POLE, NUM_DEFAULT_CIRCLE_VERTS, NUM_DEFAULT_GREAT_SEGS, pixelsPerMeter, planetPixelCircumference, planetPixelRadius, planetRadius, projID, scale, scaled_radius, SOUTH_POLE, type, width, XSCALE_THRESHOLD, XTHRESHOLD

Constructor Summary

OrthographicView(LatLonPoint center, float scale, int width, int height)
Construct an OrthographicView projection.

Method Summary

protected java.awt.Point	_forward(float phi, float lambda, java.awt.Point p, Azimuth.AzimuthVar azVar) Forward project a point.
protected void	computeParameters() Called when some fundamental parameters change.
void	drawBackground(java.awt.Graphics g) Assume that the Graphics has been set with the Paint/Color needed, just render the shape of the background.
void	drawBackground(java.awt.Graphics2D g, java.awt.Paint paint) Draw the background for the projection.
LatLonPoint	getLowerRight() Get the lower right (southeast) point of the projection.
LatLonPoint	getUpperLeft() Get the upper left (northernmost and westernmost) point of the projection.
LatLonPoint	inverse(int x, int y, LatLonPoint llp) Inverse project x,y coordinates into a LatLonPoint.
LatLonPoint	inverse(java.awt.Point pt, LatLonPoint llp) Inverse project a Point.
void	setCenter(float lat, float lon) Set center point of projection.
void	setCenter(LatLonPoint pt) Set center point of projection.
java.lang.String	toString() Return stringified description of this projection.

Methods inherited from class com.bbn.openmap.proj.Orthographic

getName, hemisphere_clip, isPlotable, normalize_latitude

Methods inherited from class com.bbn.openmap.proj.Azimuth

_forwardPoly, _panE, _panN, _panNE, _panNW, _panS, _panSE, _panSW, _panW, forward, forward, forward, forwardRaw, isClockwiseTraversal, overNorthPole, overPoint, overSouthPole, pan, setClockwiseTraversal

Methods inherited from class com.bbn.openmap.proj.Proj

clone, doPolyDispatch, equals, forward, forward, forwardArc, forwardArc, forwardArc, forwardCircle, forwardCircle, forwardCircle, forwardGreatPoly, forwardLine, forwardLine, forwardPoly, forwardPoly, forwardRaster, forwardRect, forwardRect, forwardRect, forwardRhumbPoly, getCenter, getHeight, getMaxScale, getMinScale, getPlanetPixelCircumference, getPlanetPixelRadius, getPlanetRadius, getPPM, getProjectionID, getProjectionType, getScale, getScale, getWidth, hashCode, inverse, inverse, isComplicatedLineType, isPlotable, makeClone, pan, panE, panE, panN, panN, panNE, panNE, panNW, panNW, panS, panS, panSE, panSE, panSW, panSW, panW, panW, setHeight, setMaxScale, setMinScale, setParms, setPlanetRadius, setPPM, setProjectionID, setScale, setWidth, wrap_longitude

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Field Detail

OrthographicViewName

public static final transient java.lang.String OrthographicViewName

The OrthographicView name.

See Also:

Constant Field Values

OrthographicViewType

public static final transient int OrthographicViewType

The OrthographicView type of projection.

See Also:

Constant Field Values

uCtr

protected LatLonPoint uCtr

uCtrLat

protected float uCtrLat

uCtrLon

protected float uCtrLon

sCtrX

protected int sCtrX

sCtrY

protected int sCtrY

uCtrX

protected int uCtrX

uCtrY

protected int uCtrY

dUSX

protected int dUSX

dUSY

protected int dUSY

Constructor Detail

OrthographicView

public OrthographicView(LatLonPoint center,
                        float scale,
                        int width,
                        int height)

Construct an OrthographicView projection.

Parameters:

center - LatLonPoint center of projection

scale - float scale of projection

width - width of screen

height - height of screen

Method Detail

toString

public java.lang.String toString()

Return stringified description of this projection.

Overrides:

toString in class Orthographic

Returns:

String

See Also:

Projection.getProjectionID()

setCenter

public void setCenter(float lat,
                      float lon)

Set center point of projection.

Overrides:

setCenter in class Proj

Parameters:

lat - float latitude in decimal degrees

lon - float longitude in decimal degrees

setCenter

public void setCenter(LatLonPoint pt)

Set center point of projection.

Overrides:

setCenter in class Proj

Parameters:

pt - LatLonPoint

computeParameters

protected void computeParameters()

Called when some fundamental parameters change.

Each projection will decide how to respond to this change. For instance, they may need to recalculate "constant" paramters used in the forward() and inverse() calls.

Overrides:

computeParameters in class Orthographic

_forward

protected java.awt.Point _forward(float phi,
                                  float lambda,
                                  java.awt.Point p,
                                  Azimuth.AzimuthVar azVar)

Forward project a point. If the point is not within the viewable hemisphere, return flags in AzimuthVar variable if specified.

Overrides:

_forward in class Orthographic

Parameters:

phi - float latitude in radians

lambda - float longitude in radians

p - Point

azVar - AzimuthVar or null

Returns:

Point pt

inverse

public LatLonPoint inverse(int x,
                           int y,
                           LatLonPoint llp)

Inverse project x,y coordinates into a LatLonPoint.

Specified by:

inverse in interface Projection

Overrides:

inverse in class Orthographic

Parameters:

x - integer x coordinate

y - integer y coordinate

llp - LatLonPoint

Returns:

LatLonPoint llp

See Also:

Proj.inverse(Point)

inverse

public LatLonPoint inverse(java.awt.Point pt,
                           LatLonPoint llp)

Inverse project a Point.

Specified by:

inverse in interface Projection

Overrides:

inverse in class Orthographic

Parameters:

pt - x,y Point

llp - resulting LatLonPoint

Returns:

LatLonPoint llp

drawBackground

public void drawBackground(java.awt.Graphics2D g,
                           java.awt.Paint paint)

Draw the background for the projection.

Overrides:

drawBackground in class Azimuth

Parameters:

g - Graphics2D

paint - java.awt.Paint to use for the background

drawBackground

public void drawBackground(java.awt.Graphics g)

Assume that the Graphics has been set with the Paint/Color needed, just render the shape of the background.

Overrides:

drawBackground in class Azimuth

getUpperLeft

public LatLonPoint getUpperLeft()

Description copied from class: Orthographic

Get the upper left (northernmost and westernmost) point of the projection.

Returns the upper left point (or closest equivalent) of the projection based on the center point and height and width of screen.

Specified by:

getUpperLeft in interface Projection

Overrides:

getUpperLeft in class Orthographic

Returns:

LatLonPoint

getLowerRight

public LatLonPoint getLowerRight()

Description copied from class: Orthographic

Get the lower right (southeast) point of the projection.

Returns the lower right point (or closest equivalent) of the projection based on the center point and height and width of screen.

This is trivial for most cylindrical projections, but much more complicated for azimuthal projections.

Specified by:

getLowerRight in interface Projection

Overrides:

getLowerRight in class Orthographic

Returns:

LatLonPoint