The DISTCARTESIAN
field specifier allows you to find documents whose X/Y position is within a specified distance from a specified point.
FieldText=DISTCARTESIAN{coordX,coordY,dist}:X:Y
coordX
|
The specified x coordinate. |
coordY
|
The specified y coordinate. |
dist
|
The distance in kilometers from the specified x/y coordinates. |
X
|
The document field containing the X coordinate. |
Y
|
The document field containing the Y coordinate. |
You must specify two fields, in the order X:Y.
You can optimize the field specifier speed by restricting the coordinate fields to the
FieldText=DISTCARTESIAN{10,11,5}:X:Y
This example matches all documents whose (X,Y) position is within a distance of 5 units of the point (10,11).
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