CoordArrTable class
The CoordArrTable class provides a way to describe X/Y coordinate data to the HLU library.
Synopsis
Header file: ncarg/hlu/CoordArrTable.h Class name: coordArrTableClass Class pointer: NhlcoordArrTableClass Fortran class function: <Not referenceable> Superclass: DataItem Composite classes: <None>Note: This object is only available from "C". Fortran programmers should use the CoordArrays object.
Resources
Local resources
+---------------------------------------------------------------+ | CoordArrTable resource set | |---------------------------------------------------------------| | NAME TYPE ACCESS | | CLASS DEFAULT | |===============================================================| | ctCopyTables NhlTBoolean RCSG | | diCopyData True | |---------------------------------------------------------------| | ctXTable NhlTPointerGenArray RCSG | | CtXTable NULL | |---------------------------------------------------------------| | ctXTableLengths NhlTIntegerGenArray RCSG | | CtXTableLengths NULL | |---------------------------------------------------------------| | ctXTableType NhlTString RCSG | | CtXTableType NULL | |---------------------------------------------------------------| | ctXElementSize NhlTInteger RCSG | | CtXElementSize <dynamic> | |---------------------------------------------------------------| | ctXMissingV NhlTVariable RCSG | | diMissingValue NULL | |---------------------------------------------------------------| | ctXMaxV NhlTVariable RCSG | | CtXMaxV <dynamic> | |---------------------------------------------------------------| | ctXMinV NhlTVariable RCSG | | CtXMinV <dynamic> | |---------------------------------------------------------------| | ctYTable NhlTPointerGenArray RCSG | | CtYTable NULL | |---------------------------------------------------------------| | ctYTableLengths NhlTIntegerGenArray RCSG | | CtYTableLengths NULL | |---------------------------------------------------------------| | ctYTableType NhlTString RCSG | | CtYTableType NULL | |---------------------------------------------------------------| | ctYElementSize NhlTInteger RCSG | | CtYElementSize <dynamic> | |---------------------------------------------------------------| | ctYMissingV NhlTVariable RCSG | | diMissingValue NULL | |---------------------------------------------------------------| | ctYMaxV NhlTVariable RCSG | | CtYMaxV <dynamic> | |---------------------------------------------------------------| | ctYMinV NhlTVariable RCSG | | CtYMinV <dynamic> | +---------------------------------------------------------------+
Superclass resources
There are no Superclass resources.
Description
The CoordArrTable object is used to describe X/Y coordinate data to the HLU library. It is usually used in combination with the XyPlot object.
The CoordArrTable object uses two "tables" to do
this: the ctXTable and the
ctYTable. These "table"
resources are actually arrays of arrays. The main array points to
something of type **var where type is
specified by the ctXTableType
and ctYTableType resources. The
easiest way to understand this is to think about the table as an array
of vectors. Therefore, the "type" for the ctXTable and ctYTable NhlGenArray is NhlPointer,
because each element of the NhlGenArray array is actually a pointer to
a vector. Each element of each vector is of type ctXTableType, and ctYTableType respectively. The ctXTableType and ctYTableType resources must be set for
their respective "Table" resource.
The Min and Max resources are computed if they are not set explicitly. If the ctXTable or ctYTable resources are reset to new values, the Min and Max values are recomputed unless the Min and Max values have been explicitly set by the user. If these resources are ever set, the programmer/user is taking responsibility for updating them if they need to be updated.
Support functions
There are no support functions for the CoordArrTable object, although all the support functions that are available for the DataItem class are available. Additionally, some of the DataComm functions are used with DataItem objects.See also
- NhlAddData function
- NhlRemoveData function
- DataComm object
- DataItem object