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In PAST4 data is stored in metafiles
that contain not only records with headers and data but also informations
about their relationship and dependencies. Additionally a PAST4 project
file contains program settings to allow for a total recall function. When
working on a dendrochronological project it is possible to save the
current status to project file and close down the computer. By reloading
the P4P file later the entire setup of the program and all contained
groups records and dynamic mean values will be restored.
A small example may clearify this new
concept. If you create a drawing with Corel Draw you would never consider
saving each line, box and bitmap of the image to individual files. Instead
you save and load one metafile that consists of all the necessary
informations to regenerate your drawing, including the paper size,
orientation etc.
In PAST4
the classic dendrochronological file formats are primarily used for data
import and export. At any time it is possible to import or export records
and mean values as Tucson, Hemmenhofen, Heidelberg or Catras files. |
