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A layout of the schema that defines this format is shown below:
Domain
Parameter domain axes
A pi time series file can contain 1D (single domain axis) or 2D (two domain axes) data like spectra. The domain axes are non-spatial and non-temporary like frequency and direction. Grids and longitudinal profiles can not be store in a pi time series file at this moment. 1D values are displayed as XY chart per point in time like longitudinal profiles. For 2D value the second domain axis is used as direction to display a polar plot per time. axes. Multiple dimensional values
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<?xml version="1.0" encoding="UTF-8"?>
<TimeSeries xmlns="http://www.wldelft.nl/fews/PI" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.wldelft.nl/fews/PI http://fews.wldelft.nl/schemas/version1.0/pi-schemas/pi_timeseries.xsd" version="1.2">
<timeZone>0.0</timeZone>
<series>
<header>
<type>instantaneous</type>
<locationId>CRKW-001_N</locationId>
<parameterId>Wave.variancedensity.voorspeld</parameterId>
<timeStep unit="nonequidistant"/>
<startDate date="2011-06-05" time="00:00:00"/>
<endDate date="2011-06-05" time="00:00:20"/>
<missVal>-999</missVal>
<stationName>Burg.Korstanjestraat</stationName>
<units>m2/Hz</units>
<domainAxis parameterId="f" units="Hz"/>
<domainAxis parameterId="dir" units="degrees"/>
</header>
<event date="2011-06-05" time="00:00:00" flag="9"/>
<domainAxisValues parameterId="f">
1.0
2.0
3.0
4.0
</domainAxisValues>
<domainAxisValues parameterId="dir">
0.0 180.0
</domainAxisValues>
<event date="2011-06-05" time="00:00:10" flag="0">
1.0 2.0
3.0 4.0
-999 6.0
7.0 8.0
</event>
<event date="2011-06-05" time="00:00:20" flag="0">
8.0 7.0
6.0 5.0
4.0 3.0
2.0 1.0
</event>
</series>
</TimeSeries>
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