TGraphCurve

The TGraphCurve structure is used to store the contents of a graph curve.

Members

Size

Specifies the size, in bytes, of this data structure. Set this member to sizeof(TGraphCurve) before calling a function with a TGraphCurve parameter.

lpX

Points to a block of memory where the X values for the curve are returned.

It is the caller's responsibility to allocate (and deallocate) this memory.

• For frequency domain spectral density graphs, call C_GetFrequencyDomainSpectralDensityGraph passing NULL as the lpGraph parameter and use the value returned in lpNumOfGraphPoints to determine how much memory to allocate. The same pattern is used with C_GetFrequencyDomainSpectralDensityGraphFromProcess.
• For spectral response graphs, call C_GetSpectralResponseGraph passing NULL as the lpGraph parameter and use the value returned in lpNumOfGraphPoints to determine how much memory to allocate. The same pattern is used with C_GetFrequencyDomainSpectralResponseGraphFromProcess.

lpY

Points to a block of memory where the Y values for the curve are returned. This memory should be allocated and deallocated in the same way as the memory for lpX.

See also

C_GetFrequencyDomainSpectralDensityGraph, C_GetSpectralResponseGraph, C_GetFrequencyDomainSpectralDensityGraphFromProcess, C_GetFrequencyDomainSpectralResponseGraphFromProcess.