CGA: Geometry modifications CGA：几何修改

Traditionally, CGA rules allowed you to construct and manipulate geometry only through built-in operations, often resulting in rigid, orthogonal forms. Now, we are entering a new era with novel geometry modification capabilities, enabling you to transform geometry components and recombine subdivided shapes directly within CGA. Create beautiful designs with intricate layouts, custom massing models, and complex roofs. With these improvements, procedural modeling continues to evolve in-step with the expressive needs of contemporary architecture.传统上，CGA规则只允许通过内置操作来构建和操纵几何体，这往往会产生僵硬的正交形式。现在，我们正迈入一个拥有新型几何修改能力的新时代，使您能够直接在CGA中转换几何组件并重新组合细分后的形状。您可以创建具有复杂布局、自定义体量模型和复杂屋顶的精美设计。随着这些改进，程序性建模将继续发展，以满足当代建筑的表达需求。

New features:新功能：

• The new modify operation allows you to manipulate selected parts of the geometry, for example with transformations or splits, and then reconnects the edited parts with the original mesh topology.新的修改操作允许你处理几何体的选定部分（例如通过变换或分割），然后将编辑后的部分与原始网格拓扑重新连接。
• The new recompose strategy for inline can be used to directly reconnect subdivided shapes. For example, splitting a surface into a connected grid and then applying modify to move the new vertices into a parametric surface.新的内联重组策略可用于直接重新连接细分后的形状。例如，将一个曲面分割成相连的网格，然后应用修改操作将新顶点移动到参数化曲面中。

Visual CGA: No-code building facades可视化CGA：无代码建筑立面

With the addition of facade components to ESRI.lib, planners and designers can now turn schematic massing studies into realistic visualizations.随着ESRI.lib中新增了外观组件，规划人员和设计师现在可以将示意性的体量研究转化为逼真的可视化效果。

Through visual programming and the growing component library, procedural modelling of rich facades is now simplified and does not require any programming knowledge.借助可视化编程和不断扩充的组件库，丰富立面的程序化建模如今已得到简化，并且无需任何编程知识。

You can now split massing volumes into floors, arrange facade patterns, and add out-of-the box architectural elements, such as windows or shading devices, to create a complete and realistic building design.现在，你可以将体量分割为楼层，布置立面图案，并添加现成的建筑元素（如窗户或遮阳装置），从而创建完整且逼真的建筑设计。

The Visual CGA Editor now includes powerful new features that make it both more capable and convenient to use. With parameter connections, you can share information between components, such as floor numbers or window heights, unlocking greater variety and control in your procedural designs. Furthermore, the Visual CGA Editor now includes built-in documentation. Each component provides immediate access to a general description, and tooltips explain each attribute slot and extension point.Visual CGA编辑器现在新增了强大的功能，使其不仅功能更强大，使用也更便捷。通过参数连接，您可以在组件之间共享信息，例如楼层号或窗户高度，从而在程序性设计中获得更多样化的效果和更精准的控制。此外，Visual CGA编辑器现在还包含内置文档。每个组件都能让您直接获取其通用描述，而工具提示则会解释每个属性槽和扩展点。

Street Designer: More lane information街道设计工具：更多车道信息

Street Designer continues to improve. To enhance the distinction between the roadbed lanes and the sidewalk shapes, the sidewalk shapes are now displayed in a slightly darker shade. Additionally, the separator lines between the sidewalk shapes and roadbed lanes are highlighted when the Street Designer tools are active.Street Designer 持续改进。为增强路基车道与人行道形状之间的区分度，人行道形状现在以稍深的色调显示。此外，当 Street Designer 工具处于激活状态时，人行道形状与路基车道之间的分隔线会被高亮显示。

We refined the Street Designer pointer icons in the Viewport window to make it easier to understand the currently active tool. The minimum lane width is now 0.1 meters for both the Edit Lane tool and the Lane Parameters section in the Inspector window.我们优化了视口窗口中的“街道设计器”指针图标，以便更轻松地识别当前激活的工具。现在，编辑车道工具和检查器窗口中的车道参数部分的最小车道宽度均为0.1米。

Introducing the Python 3 API (Beta)介绍Python 3 API（测试版）

Python 3 transforms our Python integration from a closed automation tool into an open platform for developers to build custom solutions and applications using the CityEngine API.Python 3 将我们的 Python 集成从一个封闭的自动化工具转变为一个开放平台，供开发者使用 CityEngine API 构建定制解决方案和应用程序。

You can now integrate CityEngine with other Esri APIs such as ArcPy and the ArcGIS API for Python, as well as with thousands of third-party libraries. This enables diverse use cases including street network analyses, AI-powered scene modifications, and custom UI data entry forms.现在，您可以将CityEngine与其他Esri API（如ArcPy和ArcGIS Python API）以及数千个第三方库集成。这支持多种使用场景，包括街道网络分析、人工智能驱动的场景修改以及自定义用户界面数据输入表单。

A new UI allows you to manage multiple Python interpreters and virtual environments. Projects and the interactive Python Console can each be configured to use specific interpreters or virtual environments. See Working with Python 3 for more information.新的用户界面允许你管理多个Python解释器和虚拟环境。项目和交互式Python控制台都可以配置为使用特定的解释器或虚拟环境。有关更多信息，请参见使用Python 3。

The Python 3 API and its supporting UI are available in beta. See the list of known limitations.Python 3 API及其配套用户界面已处于测试阶段。请查看已知限制列表。

Tutorials and documentation 教程和文档

We updated our current tutorial series catalog with new content and improved visuals:我们用新内容和改进的视觉效果更新了当前的教程系列目录：

• Try ArcGIS CityEngine 尝试 ArcGIS CityEngine
• Learn about ArcGIS CityEngine integration了解ArcGIS CityEngine的集成
• Discover ArcGIS CityEngine in real-world scenarios在实际场景中探索ArcGIS CityEngine

We expanded our catalog with two new tutorial series, each offering a sequence of tutorials with step-by-step guidance through essential CityEngine workflows:我们在目录中新增了两个新的教程系列，每个系列都包含一系列教程，通过逐步指导介绍CityEngine的基本工作流程：

• Learn procedural modeling with CGA 学习使用CGA进行程序化建模

  Learn how to write CGA rules to generate attribute-driven and adaptable 3D models in real time.了解如何编写CGA规则，以实时生成由属性驱动且具有适应性的3D模型。

• Import data in ArcGIS CityEngine 在ArcGIS CityEngine中导入数据

  Learn how to import, clean-up, calculate, format, and report data in your ArcGIS CityEngine projects.了解如何在您的ArcGIS CityEngine项目中导入、清理、计算、格式化和报告数据。

We refurbished the following tutorials by adding fresh workflows and updated visuals:我们通过添加全新的工作流和更新的视觉效果，对以下教程进行了翻新：

• Tutorial 10: Python scripting 教程10：Python脚本

  Updated the scripts in the project and documentation to follow better coding practices and removed the Change Street Widths subsection due to incompatibility with Street Designer.更新了项目中的脚本和文档，以遵循更好的编码规范，并因与街道设计器不兼容而移除了“更改街道宽度”子部分。

• Tutorial 14b: Modeling on terrain 教程14b：地形建模

  Learn the essentials of modeling streets and shapes on terrain.学习在地形上建模街道和形状的基本要点。

• Tutorial 21: CSV import 教程21：CSV导入

  Learn how to import data from a .csv file and use it in CGA code arrays.了解如何从.csv文件导入数据并在CGA代码数组中使用它。