Contents
Overview
Sigraph is a new program which provides the functionality, previously available in GsGraf, for manipulation and display of time-history data, with a particular emphasis on seismic records.
Status
This is a validated version. The solver has passed the verification procedures.
New Features
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Data can be input from Sigraph native files (.sig), text files (tab (.txt)and comma (.csv)
delimited), Oasys T/HIS curve files (.cur) and GFA (binary (.gfd) and text (.gfa)) files.
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Full control over the display of curves, including all style information.
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Dockable gateway for quick access to individual curves.
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No limit on number of curves or number points per curve.
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Full range of manipulation options:
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arithmetic: addition, subtraction, multiplication, division, shifting, factoring
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mathematical: sum, mean, square root, power, reciprocal, normalize, modulus,
logarithms
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calculus: differentiation, integration
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general: interpolation, least squares fit, running RMS, FFT, inverse FFT,
filtering, power spectral density
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seismic: base-line correction, period/frequency exchange, spectrum broadening,
response spectrum generation, synthetic time history generation
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Scalar (real or complex), vector and tensor data types
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A complete list of changes and fixes in this version is given in the
Sigraph 8 Change Log.