Arch SHP/it: Difference between revisions

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(Created page with "FreeCAD è in grado di importare [https://en.wikipedia.org/wiki/Shapefile shapefiles]")
(Created page with "L'importatore utilizza la libreria shapefile.py da https://github.com/GeospatialPython/pyshp, che non si trova nel proprio sistema al primo avvio, ma che l'importatore proporr...")
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FreeCAD è in grado di importare [https://en.wikipedia.org/wiki/Shapefile shapefiles]
FreeCAD è in grado di importare [https://en.wikipedia.org/wiki/Shapefile shapefiles]


The importer uses the shapefile.py library from https://github.com/GeospatialPython/pyshp, it is not found on your system on first run, the importer will propose to download and install it for you.
L'importatore utilizza la libreria shapefile.py da https://github.com/GeospatialPython/pyshp, che non si trova nel proprio sistema al primo avvio, ma che l'importatore proporrà di scaricare e installare.


Shapefiles are composed of 3 files (a .shp, a .shx and a .dbf file), any of them can be used with this importer. They are composed of 2D objects of one geometry type, that can be polygons/faces, polylines or point cloud (all 3 types are supported by this importer), and custom fields, for which each face, polyline or point in the shapefile has a value. This is the real gem of GIS, to bind a database with geometry. The most common use is to have one field to represent the elevation coordinate of each shape in the file. On opening the file, the importer will ask you what field to get shape elevations from.
Shapefiles are composed of 3 files (a .shp, a .shx and a .dbf file), any of them can be used with this importer. They are composed of 2D objects of one geometry type, that can be polygons/faces, polylines or point cloud (all 3 types are supported by this importer), and custom fields, for which each face, polyline or point in the shapefile has a value. This is the real gem of GIS, to bind a database with geometry. The most common use is to have one field to represent the elevation coordinate of each shape in the file. On opening the file, the importer will ask you what field to get shape elevations from.

Revision as of 20:57, 17 May 2020

FreeCAD è in grado di importare shapefiles

L'importatore utilizza la libreria shapefile.py da https://github.com/GeospatialPython/pyshp, che non si trova nel proprio sistema al primo avvio, ma che l'importatore proporrà di scaricare e installare.

Shapefiles are composed of 3 files (a .shp, a .shx and a .dbf file), any of them can be used with this importer. They are composed of 2D objects of one geometry type, that can be polygons/faces, polylines or point cloud (all 3 types are supported by this importer), and custom fields, for which each face, polyline or point in the shapefile has a value. This is the real gem of GIS, to bind a database with geometry. The most common use is to have one field to represent the elevation coordinate of each shape in the file. On opening the file, the importer will ask you what field to get shape elevations from.

One shape will be created from each shapefile in FreeCAD.

Note that all the question of georeferenced units, with hundreds of projection systems used worldwide, is not treated at the moment. The coordinates from the file are used "as is".

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