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Object vs Shapes

AbeleGiandoso

Hi people.

Can someone help me understanding what is the difference between objects and shapes? I read the manual but I still can not figure it out exactly.

I have some trouble understanding what is what.

I see there are Object attributes AND shapes attributes. Is it the same thing?

Many thanks

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AbeleGiandoso

Hi Thomas Fuchs . I stumbled into this passage in the manual. Apparently there ARE shape attributes. I am confused again lol

AbeleGiandoso

Got it!

Thanks Thomas

ThomasFuchs

There are Object Attributes and Shape Parameters, there are no Shape Attributes.

The Connection Editor displayed for attribute minArcRadius

Shape parameters define the dynamic shape generated by CityEngine.
Please read the CE help on Creation of Shapes from Graph Networks .

Also Note: Shape Parameters can also be connected to Object Attributes.

AbeleGiandoso

I see! Thanks Thomas Fuchs‌

If shapes are a type of object, can I then ask what is the difference between a Object attribute and a Shape Attribute?

Is a shape attribute simply an object attribute of a shape?

This is the passage from the manual which is confusing me:

"Attributes, Sources and Connections
attributes can have different sources, which allows connecting the values of the attributes in various ways. Sources can be of the types
Object
The value is taken from the corresponding object attribute. The value is displayed in italic, and marked with (Object).
Shape
A rule attribute can use a shape source to take its value from the parent shape. For example a street shape may sample the street segment's streetWidth. The value is displayed in italic, and marked with (Shape).
"

Luiz_AmadeuCoutinho

Here a printscreen of my project. There´s a "layer" with 28 objects, but not all the same.

Some objects are Collada Models (.dae file extesion from Trimble Sketchup ). Could be files like.obj, .fbx....

Some others are Shapes with attributes like Type of Space, Area SQM, Floor, building name.... - Shapes where it´s possible to apply Rules to create 3D models using CityEngine.

ThomasFuchs

Thank you for your question.

Objects is generic term that comprises (Shapes, Models, Graphs, Terrains, Viewsheds ...)

Some of these Objects like Shapes or Graphs can have Object Attributes.

I hope this clarifies the semantic.

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