We can imagine the real world of the building as a vast assemblage of objects. Most of these elements in ArchiCAD ® are tools of construction: walls, columns, floors, screens, etc., Combined to make buildings.

Smart Objects:

ArchiCAD GDL objects ® are the universal standard in the world of CAD objects for construction. Already more than 100,000 architects in the world using the GDL objects, and more than 500 manufacturers to offer their products. You can get more information on GDL technology www.gdlcentral.com

Library Objects allow us to represent:

	Construction elements as catalogs and manufacturer's specifications.
	Furniture, leading manufacturers have all their products available for ArchiCAD ®
	Windows and Doors offer a wide variation of parameters and alternatives for constructive action, style, detail and 2D and 3D symbology, etc.
	Stairs, that allow for change not only their total constructive measures, but also the footprint, the riser, the thickness of the shank, the shape and dimensions of the rail, etc.
	Construction details are configurable objects that can adapt to fit our project.
	Lights, lighting.
	Images of people, trees, or even photographs of buildings in the project are inserted as objects.
	Drawing 2D objects and utilities that can increase productivity and care of the drawing.

Parametric objects ...

One of the main characteristics of objects ArchiCAD ® is its ability to change the default values, ie, its parameterization.

Objects created in GDL (Geometric Description Language) is easily modified to fit perfectly to the element it represents.Once inserted in the project can be changed as often as you like, we can place several times the same object but with different appearance. In other programs, once inserted the object, and can not change, we should delete it and create a new one.

... And "smart"

2D and 3D elements are all fully parametric type, not only in its overall dimensions (width, height and depth) but also in materials, the relative distances, variations in the design, etc. This allows for a virtually unlimited number of different library items and optionally sensitive to the drawing scale.

The simplicity of using objects

Learned one, learned them all.
ArchiCAD ® interface is intended primarily to be very comfortable, practical and easy to understand. Thus, this logic dictates that all objects present the same user interface, very intuitive and easy to use.

Preview of the object, 2D, 3D wireframe, color and render themselves. In 3D mode, you can examine the shape of the object from all sides using the small arrow that appears when you move the cursor around the object.All parameter changes are seen in the preview of the object.
The user can create their own objects with the tools you have the program, you can use objects and blocks imported from other CAD formats, ArchiCAD ® has specific commands for these jobs.