Below is a table of all node classes in the system. For each node the following information is presented:
- Node class name (will be a link if documentation is available)
- Number of children (n/ch)
- A short description of the node;
- Example glish script with tree, if available.
Node |
n/ch |
Description |
Example Tree |
Math Nodes |
|||
MeqAbs |
1 |
... |
|
MeqAcos |
1 |
... |
|
MeqAdd |
1+ |
... |
|
MeqArg |
1 |
... |
|
MeqAsin |
1 |
... |
|
MeqAtan |
1 |
... |
|
MeqCeil |
1 |
... |
|
MeqConj |
1 |
... |
|
MeqConstant |
0 |
constant value |
|
MeqCos |
1 |
... |
|
MeqCosh |
1 |
... |
|
MeqDivide |
2 |
... |
|
MeqExp |
1 |
... |
|
MeqFabs |
1 |
... |
|
MeqImage |
1 |
All Nodes dealing with FITS Images, see MeqImage |
|
MeqFloor |
1 |
... |
|
MeqFMod |
2 |
... |
|
MeqGaussNoise |
0 |
... |
|
MeqImag |
1 |
... |
|
MeqInvert |
1 |
... |
|
MeqLog |
1 |
... |
|
MeqMultiply |
1+ |
... |
|
MeqNegate |
1 |
... |
|
!MeqNElements |
1+ |
... |
|
MeqNorm |
1 |
... |
|
0 |
a [possibly solvable] parameter |
||
MeqPolar |
2 |
express a complex number in polar coordinates (amplitude, phase) |
|
MeqPow2 |
1 |
... |
|
MeqPow3 |
1 |
... |
|
MeqPow4 |
1 |
... |
|
MeqPow5 |
1 |
... |
|
MeqPow6 |
1 |
... |
|
MeqPow7 |
1 |
... |
|
MeqPow8 |
1 |
... |
|
MeqPow |
2 |
... |
|
MeqRandomNoise |
0 |
... |
|
MeqReal |
1 |
... |
|
MeqSin |
1 |
... |
|
MeqSinh |
1 |
... |
|
MeqSqr |
1 |
... |
|
MeqSqrt |
1 |
... |
|
1 |
delete perturbed values from a Vellset |
||
MeqSubtract |
2 |
... |
|
MeqTan |
1 |
... |
|
MeqTanh |
1 |
... |
|
MeqToComplex |
2 |
... |
|
MeqWMean |
1+ |
... |
|
MeqWSum |
1+ |
... |
|
MeqTranspose |
1 |
matrix transpose |
|
4 |
create a 2x2 matrix |
||
MeqMatrixMultiply |
1+ |
matrix multiplication |
|
MeqMatrixInvert22 |
1 |
2x2 matrix inversion |
|
MeqComposer |
1+ |
compose tensors |
|
MeqSelector |
1 |
select tensor elements |
|
MeqPaster |
2 |
paste tensor elements |
|
MeqSum |
1+ |
sums the contents of cells |
|
MeqProduct |
1+ |
... |
|
MeqStdDev |
1 |
the standard deviation of cells contents |
|
MeqRms |
1 |
... |
|
MeqMean |
1+ |
The mean of the contents of cells |
|
MeqMax |
1+ |
... |
|
MeqMin |
1+ |
... |
|
2+ |
calculate Azimuth and Elevation from RA and DEC |
||
2 |
transforms coordinates |
||
MeqLMN |
. |
Calculate L, M, N from RA and DEC |
|
2 |
calculate RA, DEC from L and M |
||
0 |
Give RA,Dec of standard objects like SUN,MOON |
||
2 |
calculate Parallactic Angle from RA and DEC |
||
MeqAzElRADec |
2+ |
Calculates the RA,Dec given Az, El coordinates |
|
MeqUVW |
. |
... |
|
1 |
Calculates Longitude Lattitude and Length for a given ITRF xyz position |
||
I/O Nodes |
|||
Node |
n/ch |
Description |
|
0 |
read data |
||
1 |
make requests and write data |
||
Other Nodes |
|||
Node |
n/ch |
Description |
|
2 |
implement implicit (compound) functions |
||
MeqCondeq |
2 |
... |
|
MeqDataCollect |
1+ |
... |
|
MeqDataConcat |
1+ |
... |
|
1 |
collects history into a list |
||
MeqFreq |
0 |
... |
|
MeqMergeFlags |
1+ |
... |
|
MeqReqMux |
1+ |
... |
|
1+ |
sends a sequence of requests |
||
1 |
resamples the Result of its children |
||
1+ |
solve for parameters |
||
0 |
station beamformer |
|
|
MeqTime |
0 |
... |
|
MeqUVBrick |
. |
... |
|
MeqUVInterpol |
. |
... |
|
MeqVisPhaseShift |
. |
... |
|
MeqZeroFlagger |
1 |
... |
|