TerraView 5.x - Main concepts and its correspondence in previous version
The new concepts adopted in TerraLib/TerraView 5.x are summarized here in a way users of TerraView 4.2.2 will quickly understand what to get when converting a database created in previous version to TerraView-5.x.
| From: TerraView 4.2.2 | To: terraView 5.x | Rationale |
| DataSource | Data Source is a location from where to pick up data (Postgis Database, Microsoft Access Database, Directory of Vector files, Directory of Raster files and URL) | |
| Connector | It is used to registry an existing datasource (or to create an empty one) into a file called datasource.xml |
|
| Project File (*.tview) | It keep a list of all DataSources registered and for each Layer it keep a reference to a dataset, SRID and style of visualization (point/line/polygon style) | |
| Layer Explorer | It lists all Layers referenced in a Project | |
| Projection | SRID | It is a code given by EPSG to each known projection |
| Infolayer-Vector | Vector Dataset | It is a dataset stored into the datasource defined by the user |
| Infolayer-Raster | Raster Dataset | It is a raster file stored in a Directory defined by the user (outside the database) |
| Tabular Layer | Tabular | It is a dataset stored into the datasource defined by the user |
| External Tables | Tabular | It is a dataset stored as a tabular layer into the datasource defined by the user |
| View | Map Display | A View can be compared to the Map Display (the view projection is the Map Display SRID adopted to visualize all layers) |
| Theme | Layer | Layer showed in a Map Display (reprojected to the Map Display SRID) |
| Theme Visual | Layer Style | The Visual concept is the Layer Style stored inside the Project file |
The diagram bellow shows the main concepts adopted and the relationship between them.
