How can postGIS improve the durability of MicroStation projects?

2 How to integrate postGIS with MicroStation?

MicroStation is a CAD software that allows you to create and manage complex infrastructure projects, such as roads, bridges, buildings, and utilities. MicroStation supports various data formats and sources, including GIS data. To integrate postGIS with MicroStation, you need to use a data provider that can connect to your postGIS database and access the spatial data. One of the options is to use Bentley Map, a GIS application that works within MicroStation and provides tools for creating, editing, and analyzing spatial data. Bentley Map can connect to postGIS using the ODBC data source, and you can import and export data between postGIS and MicroStation using the FME format.

3 How to store spatial data in postGIS?

To store spatial data in postGIS, you need to create a table that has a column with the geometry or geography data type. The geometry data type stores spatial data in a flat coordinate system, such as UTM or EPSG, while the geography data type stores spatial data in a geodetic coordinate system, such as WGS84 or NAD83. You can use the PostGIS functions to create, modify, or validate the spatial data in your table, such as ST_GeomFromText, ST_Transform, or ST_IsValid. You can also create spatial indexes on your table to improve the performance of your queries and operations.

4 How to query spatial data in postGIS?

To query spatial data in postGIS, you need to use the SQL language and the PostGIS functions that perform spatial operations. For example, you can use the ST_Intersects function to find the features that intersect with a given geometry, or the ST_Distance function to calculate the distance between two features. You can also use the spatial operators, such as &&, <#>, or <->, to filter or sort your results based on spatial criteria. You can use the pgAdmin tool or the psql command line interface to execute your queries and view the results.

5 How to analyze spatial data in postGIS?

To analyze spatial data in postGIS, you need to use the SQL language and the PostGIS functions that perform spatial analysis. For example, you can use the ST_Buffer function to create a buffer around a feature, or the ST_Union function to merge overlapping features. You can also use the ST_Area, ST_Length, or ST_Perimeter functions to measure the size, length, or perimeter of your features. You can use the pgAdmin tool or the psql command line interface to execute your analysis and view the results.