Well known data types, such as integers, floating point numbers, complex numbers, strings, vectors (1-dimensional) and arrays (multi-dimensional) are used in ODIN. For all types discussed in this section, there exists a corresponding JCAMP-DX type (
JCAMP-DX implementation (odinpara library)). This JCAMPD-DX type is prefixed by 'JDX' and then the data type, e.g. 'STD_string' has a JCAMP-DX counterpart 'JDXstring' with the same functionality. In addition, JCAMP-DX parameters can be assigned a label, grouped together with other JCAMP-DX parameters, etc.
Vectors are implemented by the
tjvector template class which is derived from the STL vector class. Its interface is therefore equivalent to that of the std::vector class. In addition, some useful functions are added. Some predefined vector classes are created by using the
tjvector template class:
- fvector: vector of float numbers
- dvector: vector of double precision float numbers
- ivector: vector of int numbers
- svector: vector of strings (STD_string objects)
- cvector: vector of complex numbers (STD_complex objects)
Multidimensional arrays are covered by the
tjarray template class. It is derived from the
tjvector class to store the data. In addition, the information about the dimensionality and extent in each dimension is stored separately in the class by an
ndim object. Some predefined array classes and their corresponding JCAMP-DX type are created by using the
tjarray template class:
- farray / JDXfloatArr: array of float numbers
- darray / JDXdoubleArr: array of double precision float numbers
- iarray / JDXintArr: array of int numbers
- sarray / JDXstringArr: array of strings (STD_string objects)
- carray / JDXcomplexArr: array of complex numbers (STD_complex objects)
Some examples on how to use these arrays:
farray fa1(3,3); // creates a 2-dimensional 3x3 array
fa1(0,1)=5.7; // assigns 5.7 to the second element in the firs row
farray fa2(3,3); // creates another 2-dimensional 3x3 array
fa1+fa2; // returns the element-wise sum of the two arrays
fa1.redim(1,2,3); // resizes fa1 to a 3-dimensional 1x2x3 array
Please see the class documention for a complete reference.
