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Terrenus HRPT v2.2 | ||||||||
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java.lang.Objectterrenus.instrument.LineScannerLocator
public abstract class LineScannerLocator
The LineScannerLocator
class computes
image scanner earth locations for a cross-track line scanner
similar to NOAA AVHRR.
Field Summary | |
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protected EllipsoidModel |
earthModel
The ellipsoid model. |
protected double |
scanStep
The line scanner stepping angle in radians. |
protected SensorModel |
sensorModel
The sensor model. |
protected Spacecraft |
spacecraft
The spacecraft for orbital computations. |
Constructor Summary | |
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LineScannerLocator()
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Method Summary | |
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protected abstract java.util.Date |
getLineDate(int line)
Gets the date for the specified scan line. |
void |
getLocations(int line,
int[] samples,
double[] latitude,
double[] longitude,
double[] satZenith,
double[] solZenith,
double[] relAzimuth)
Computes the scanner location and angle data for the specified scan line. |
double[] |
getViewVector(double[] satPosition)
Gets the view vector from a spacecraft position to its geodetic subpoint. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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protected Spacecraft spacecraft
protected EllipsoidModel earthModel
protected SensorModel sensorModel
protected double scanStep
Constructor Detail |
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public LineScannerLocator()
Method Detail |
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protected abstract java.util.Date getLineDate(int line)
line
- the scan line to query.
public double[] getViewVector(double[] satPosition)
satPosition
- the spacecraft position as [x,y,z] in
radians.
public void getLocations(int line, int[] samples, double[] latitude, double[] longitude, double[] satZenith, double[] solZenith, double[] relAzimuth)
line
- the desired scan line.samples
- the samples to generate locations and angles for,
starting at 0.latitude
- the output latitude array.longitude
- the output longitude array.satZenith
- the output spacecraft zenith array.solZenith
- the output solar zenith array.relAzimuth
- the output relative azimuth array.
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Terrenus HRPT v2.2 | ||||||||
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