When the first reader reaches the end of its data, the second reader is activated. How the Multi-Reader Worksĭuring an FME run, the Multi-Reader cycles through each individual reader and sends features on to the rest of FME as they are read. Note: For folder-based datasets (for example, Shapefiles), you are actually selecting feature types, not datasets, but the process is the same. For additional information, see Adding Readers to the Workspace in FME Workbench help. It is also available on the Add Reader dialog. The button will not activate until a format is set.Īccess the advanced file browser tool from dialog by clicking the Advanced Browser button. All datasets to be selected must be the same format, and that format must be defined before the advanced browser can be used. This option is particularly useful when the source datasets are in different folders. The file browser is commonly used to select single datasets but you can also use it to select multiple datasets when they are all stored in the same location. There are several ways to select multiple formats, but the File Browser and the Advanced Browser are the most common. The Multi-Reader is not listed as a "format" in Workbench – it is automatically enabled when you select multiple formats when you create a workspace, or when you modify a workspace to include additional readers. The Multi-Reader allows FME to combine several datasets, possibly of different types and different coordinate systems, into one logical input dataset.Īlthough this capability is most often used to merge data from adjacent mapsheet datasets into a single dataset, it is also used to integrate data from several different sources.įor example, linework from a MicroStation (IGDS) Design file could be formed into polygons using the AreaBuilder transformer, merged with point data and attributes from a Shape file using the PointOnAreaOverlayer, and output to Esri’s Spatial Database Engine (SDE).
0 kommentar(er)
