I have a shapefile of Montreal which includes the geometry of buildings and some attributes like the year of construction. I also have the building's geometrical data from another source. So I know the latitude and longitude (also x y z coordinates) of each vertex of a building.
I want to extract building's features from this shapefile with latitude and longitude of the corresponding vertices. By this way, I can combine the data from both sources by geometrical data.
I imported the shapefile into QGIS and opened the attribute table. The attribute table only shows the building's features, not the coordinates.
I want to know how I can automatically extract features coordinates by QGIS or any other tool from this shapefile?