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java.lang.Objectgov.sandia.gnem.slbmjni.GridWeight
public class GridWeight
Stores the weight assigned to each grid node that was touched by the
GreatCircle
that was in memory the last time
SlbmInterface.getWeights()
was called.
When SlbmInterface.getWeights()
is called, a map which associates an instance of a
GreatCircle
object with a double weight is initialized. Then every
LayerProfile
on the head wave interface between the source and
receiver is visited and the angular distance, d, that the ray
traveled in the horizontal segment is retreived. If d > 0,
then the neighboring
GridProfile
objects that contributed to the interpolated value of the
LayerProfile
are visited. The product of d * R * C is added to the weight associated with that
GridProfile
object, where R is the radius of the head wave interface for the
LayerProfile
object being evaluated, and C is the interpolation coefficient for the
GridProfile - LayerProfile pair under consideration. Then, all the
GridProfile
objects in the map are visited, the grid node IDs extracted into int array node,
and the weight extracted into double array weight.
Note: Only grid nodes touched by the GreatCircle currently in memory are included in the output. Each grid node is included only once, even though more than one LayerProfile object may have contributed some weight to it. The sum of all the weights will equal the horizontal distance traveled by the ray along the head wave interface, from the source pierce point to the receiver pierce point, in km.
Field Summary | |
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int[] |
node
The IDs of the grid nodes that were 'touched' by the current GreatCircle. |
double[] |
weight
The weight accumulated by each node. |
Constructor Summary | |
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GridWeight()
|
Method Summary | |
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double |
getSum()
Retrieve the sum of the weights. |
java.lang.String |
toString()
Retrieve a formatted String representation of the information in this GridProfile object. |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait |
Field Detail |
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public int[] node
public double[] weight
Constructor Detail |
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public GridWeight()
Method Detail |
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public double getSum()
public java.lang.String toString()
toString
in class java.lang.Object
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