Meteosat Images are generally imported as images in <filename>.png format. The Meteosat images constitute a time series of png images, that are geo-referenced by means of a specific world file. Each image needs its own world file, which in case of PNG carries the extension <filename>.pgw.
Import of images in another format, such as JPEG is also possible. The corresponding world file for a JPEG file has the extension <filename>.jpg.
The images are imported via a common time series import, for which a specific image parameter needs to be specified in a parameterGroup via the parameter id image.
<parameterGroup id="image">
<parameterType>instantaneous</parameterType>
<unit>-</unit>
<valueResolution>8</valueResolution>
<parameter id="image">
<shortName>image</shortName>
</parameter>
</parameterGroup>
The value resolution indicates the resolution of the values of the pixels (grey tones) in the Meteosat images. In this case 8 grey tones are resampled into a single grey tone for storage space reductions. In the module for the timemeseries import run for a Meteosat image the import is then configured as follows:
<import>
<general>
<importType>GrayScaleImage</importType>
<folder>$REGION_HOME$/Import/MeteoSat</folder>
<idMapId>IdImportMeteosat</idMapId>
</general>
<timeSeriesSet>
<moduleInstanceId>ImportMeteosat</moduleInstanceId>
<valueType>grid</valueType>
<parameterId>image</parameterId>
<locationId>meteosat</locationId>
<timeSeriesType>external historical</timeSeriesType>
<timeStep unit="minute" multiplier="15"/>
<readWriteMode>add originals</readWriteMode>
<synchLevel>4</synchLevel>
<expiryTime unit="day" multiplier="750"/>
</timeSeriesSet>
</import>
The goereferenced image can then be displayed in the grid display.
