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Showing posts with the label Digital Twin

[014] How to Use First Edge & Street Edge Attributes in Esri CityEngine

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Learn how to define shape edges and control procedural building orientations using street attributes. In Esri CityEngine, First Edge and Street Edge attributes are essential for procedural modeling workflows because they define how buildings interact with surrounding streets. In this tutorial, we will explore the core concepts of the Shapes Menu in Esri CityEngine. You will learn how to configure First Edges and Street Edges, which are essential for aligning procedural buildings to street networks and generating highly realistic Digital Twins. The following short demonstration shows how First Edge orientation can be manually changed inside Esri CityEngine using the Set First Edge tool. Video Demonstration: Changing the First Edge orientation manually inside Esri CityEngine using the Set First Edge tool. Introduction to the CityEngine Shapes Menu Shapes are arguably the most important element in City...

[013] How to Use Facade Wizard in Esri CityEngine for Procedural Facades

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Subdivide facade images into procedural components to generate automated CGA code. In this tutorial, you will learn how to leverage the Facade Wizard in Esri CityEngine to transform 2D images into 3D procedural building skins. This tool is particularly effective for modeling high-rise buildings and apartments where repetitive patterns are common, providing a foundational workflow for Digital Twin creation. CGA Efficiency and the Facade Wizard Define the efficiency of CGA for repetitive building structures. The types of building forms that can be created efficiently using CGA are those where the same shapes are simply repeated. While you could create single-family houses or even gas stations, it is most efficient when creating simple, repetitive forms with slight variations, such as high-rise buildings and apartments. When working on such forms, you can also use the Facade Wizard . To be honest, you might won...

010] CityEngine Layer Types Explained (Graph, Shape, Map & More)

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This is a beginner-friendly guide to understanding CityEngine layer types. In this tutorial, you will explore the 10 distinct layer types in Esri CityEngine. Understanding how to categorize data into Graphs, Shapes, Static Models, and Maps is the most crucial step for maintaining an organized and efficient 3D urban modeling workflow. CityEngine fundamentally categorizes object properties into five main layer types. Since the 'Map Layer' is further subdivided into five specific functions, there are a total of 10 layer types you can utilize. We will only do a broad overview today. For highly technical details on each layer, it is always best to refer to the official CityEngine Help documentation. When you import a specific file, CityEngine automatically reads its geometric properties and generates the appropriate layer. You can also create these layers manually from the top menu. Lines → Graph Layer Faces/...

[007] How to Perform Viewshed Analysis in CityEngine

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In this tutorial, you will learn how to use the built-in Viewshed Creation tool in CityEngine. We will move beyond traditional 2D line-of-sight mapping to perform highly accurate 3D visibility analysis, taking into account terrain, building heights, and precise camera angles. In landscape review reports or environmental impact assessments, viewshed analysis is a methodology you will frequently encounter. Originally used in telecommunications to identify radio wave shadow areas, it has been widely adopted in landscape architecture to evaluate changes in visual obstruction before and after a construction project. Let's look at a common visual example of how viewshed analysis is typically presented. [img 1 : Traditional 2D viewshed analysis example showing red visible areas] This is a viewshed analysis conducted from position 1, where the red areas indicate the regions that are visible from that specific point. ...