ODA Summit 2021 - Part 2: Complete BIM Interoperability

Summary

本视频介绍了ODA的IFC SDK，这是业界首个专业且经济实惠的IFC解决方案，已被广泛用于数据访问、几何处理和高质量可视化。今年，ODA新增了高级验证和协作工具，包括新的验证引擎、支持MVD和BCF的XML和REST API，以及新开发的IDS标准。此外，还介绍了强大的Express解释器，无需依赖第三方技术。ODA的IFC SDK与ISO 1030和STEP标准紧密相关，提供了多种ISO兼容特性。视频还展示了如何使用ODA库将Revit模型转换为IFC格式，并在Navisworks中查看，以及如何使用ODA SDK处理和可视化点云数据。

Takeaways

• 🚀 Oda的IFC SDK作为业界首个专业且经济实惠的IFC解决方案，已被广泛采用并用于数据访问、几何处理和高质量可视化。
• 🔧 今年Oda新增了高级验证和协作工具，包括新的验证引擎，支持MVD和BCF的XML和REST API，以及新开发的IDS标准。
• 📈 支持开放BIM标准，包括BSI标准，以及对Revit和KNIFES Fox文件的支持，以及DWG的架构、土木和地图扩展。
• 🌐 实施IFC SDK与ISO 1030和3标准的实施密切相关，引入了几个与ISO兼容的功能，如比较应用程序实例、从模型中删除实例等。
• 🔍 引入了强大的新的Express解释器，根据ISO 1030和3标准第11部分实现，无需依赖第三方技术。
• 📊 Express解释器的主要部分包括解析器、语义分析器和解释器，可以处理任何基于Express的格式，并已针对多个STEP和IFC进行了测试。
• 🔄 IFC XML 2x3的读写支持自22.6版本以来已在Oda FC SDK中提供，文件大小通常是源IFC文件的5倍。
• 📚 根据会员的请求，还增加了对旧版IFC模式的支持，如IFC TWIX Final和Type C2X2 Final，使旧文件可以由FC SDK生成。
• 🛠️ Oda通过与领域专家和软件供应商的合作，参与了新IFC 4.3标准的制定，该标准支持铁路和道路相关领域的正式化。
• 🔄 通过Oda的SDK，可以轻松地将IFC文件转换为DWG或DXF文件，以便集成到项目中，如铁路隧道计划等。

Q & A

ODA的IFC SDK是什么？

ODA的IFC SDK是业界首个专业且经济实惠的IFC解决方案，它已被成员公司广泛采用，用于数据访问、几何处理和高质量可视化。

IFC SDK新增了哪些功能？

IFC SDK新增了高级验证和协作工具，包括新的验证引擎、对MVD和BCF的支持以及XML和REST API，还有新开发的IDS标准。

ODA的IFC SDK与ISO 1030和3标准有何关联？

ODA的IFC SDK的实现与ISO 1030和3标准的实施密切相关，SDK引入了几个与ISO兼容的功能，包括比较应用程序实例、从模型中删除实例、复制实例以及简化的早期绑定API等。

新的Express解释器是如何工作的？

新的Express解释器根据ISO 1030和3标准第11部分实现，无需依赖第三方技术。解释器包括一个解析器，它将.x文件作为输入并创建表达式的抽象语法树；一个语义分析器，检查变量、类型和字段；以及一个解释器，它使用晚期绑定访问属性值来评估派生属性和WHERE规则。

IFC XML 2x3的读写支持是如何实现的？

IFC XML 2x3的读写支持在ODA FC SDK的22.6版本中已经可用。通过演示可以看到，IFC文件可以被导出为IFC XML格式，尽管文件大小通常会比原始IFC文件大五倍。

ODA如何支持IFC 4.3新标准？

ODA通过与BuildingSMART Rail的合作，实现了IFC 4.3标准候选版本4的早期实施，该版本支持铁路和道路相关领域的正式化。

Web Infinity公司的核心业务是什么？

Web Infinity的核心业务是计算机辅助设计，拥有20多年的应用开发和CAD计划自动化经验。它的旗舰产品Side View是一款独立的软件，不需要任何其他CAD软件，就可以将CAD解决方案集成到用户的开发中。

如何使用Side View将IFC文件导入到DWG格式中？

使用Side View打开IFC文件，然后选择将其转换为DWG或DXF文件，以便能够将其集成到项目中。用户可以设置Side View来导入IFC实体，可以选择作为块导入或将其分解为层并命名。

BMrb和Bmrv是什么？

BMrb是ODA独立的工具包，用于导入、可视化和创建Revit模型。Bmrv是一个活跃的开发产品，用于提供更广泛的支持元素创建和编辑的公共API。

ODA的SDK如何支持城市信息建模（CIM）？

ODA的SDK通过结合绘图SDK和架构SDK，以及对GIS数据的支持，可以帮助创建CIM解决方案。这使得用户能够在一个应用程序中结合来自多个源的数据，并利用这些数据优化任何给定的开发项目。

ODA的SDK如何处理点云数据？

ODA的SDK提供了一套工具来处理点云数据，这些工具可以读取RCS和RCP点云格式，将非结构化格式（如PTS或XYZ）转换为结构化的RCS文件，并可视化点云。ODA的点云引擎在可视化过程中会检查点云的可见性，并选择适当的细节级别。

Outlines

00:00

🚀 介绍ODA的互操作性和IFC SDK

本段落介绍了ODA的互操作性基础，特别是IFC SDK的开发和应用。去年推出的IFC SDK是业界首个专业且经济实惠的IFC解决方案，已被广泛采用于数据访问、几何处理和高质量可视化。今年，ODA在其BEAM产品中增加了高级验证和协作工具，包括新的验证引擎、对MVD和BCF的支持以及新的IDS标准。ODA对BIM行业的开放BEAM标准的支持，包括对Revit和Knives Fox文件的支持，以及对DWG文件的架构、土木和地图扩展，使得ODA在BIM行业中提供了独特的服务。

05:00

🌐 支持新标准和改进的IFC SDK功能

本段落讨论了ODA对新标准的实施，包括ISO 1030和STEP标准的兼容特性，以及IFC SDK的改进。新特性包括比较应用程序实例、从模型中删除实例、复制实例等。特别强调了新的Express解释器，它根据ISO 1030-3标准第11部分实现，无需依赖第三方技术。解释器可以处理复杂的功能，如表达式模式、运行时初始化、派生属性和WHERE规则评估。此外，还展示了Express解释器的实际应用示例，以及对IFC XML 2x3的读写支持。

10:02

🛠️ 支持旧文件格式和新标准的实施

本段落描述了ODA如何支持旧文件格式，如IFC TWIX Final和Type C2X2 Final，并介绍了新IFC 4.3标准的实施，该标准支持铁路和道路相关领域的正式化。ODA与BuildingSMART Rail集团的合作成果是一个早期实现的IFC 4.3候选版本，它支持铁路特定的实体和使用多种新曲线的对齐表示的新类别。

15:03

🔄 IFC文件的转换和集成

本段落讨论了如何将IFC文件转换并集成到其他应用程序中，例如使用ODA库的Sideview软件可以将IFC文件转换为DWG或DXF文件，以便集成到项目中。此外，还提到了Web Infinity公司如何使用ODA库将IFC文件导入并转换为DWG格式，以便在AutoCAD中使用。

20:04

📈 技术路线图和标准解决方案的未来

本段落探讨了建筑智能国际发布的技术路线图，该路线图对未来的标准解决方案、技术服务进行了前瞻性展望。它讨论了IFC的现代化和标准化，以及API标准（如VCF）如何与BSD更紧密地集成。同时，它也指出了ISO 19650标准中缺失的拼图部分，即更动态的定义交换要求的方式。

25:07

🔧 验证工具和错误处理

本段落介绍了ODA新验证引擎的不同级别，包括错误记录器、SDAI验证和格式依赖的验证。错误记录器是ISC SDK新验证引擎的最低级别，SDAI验证包括预定义的可解释或不可解释验证，而最高级别的验证是在IFC SDK中可用的格式依赖验证。此外，还讨论了验证工具如何帮助用户选择和执行所需的验证任务，并保存结果。

30:09

📌 BCF管理和新功能

本段落讨论了BCF XML API的功能，这些功能被用于实现Open FC Viewer的VCF管理器。介绍了如何使用该工具进行单个IFC文件审查，包括创建新的BCF项目、添加主题、保存项目、在第三方PCF查看器中打开项目、添加评论以及删除不必要的主题。还提到了Open IFC Viewer中另一个实验性验证插件，该插件根据IDS规则进行验证。

35:12

🌟 云解决方案和未来计划

本段落介绍了云解决方案如何帮助用户更有效地组织项目参与者之间的沟通，并解决了单一真实来源的问题。讨论了Open Cloud解决方案的多格式文件处理能力，以及如何使用Open Cloud服务器进行协作功能。还提到了ODA未来计划，包括对新的IFC运行时实现、Express解释器优化、BCF3格式支持以及对即将推出的IFC 4.3格式的可视化支持。

40:33

🏗️ 建筑和设计领域的BMR工具

本段落介绍了BMR和BMRV工具，这些工具用于导入、可视化和创建Revit模型。BMRV是一个活跃的开发产品，提供了对最新文件格式的支持、公共API的增强以及对元素创建和编辑的广泛支持。讨论了BMRV的可视化功能，包括对不同视觉样式的支持、截面几何的生成、参数的收集和可视化，以及对调度的可视化。还提到了在Revit文件中编辑或创建元素的可能性，以及对家族输入的持续工作。

45:34

🏢 从2D到3D的建筑设计演变

本段落讨论了专业绘图建模系统的演变，特别是如何围绕Open Design Alliance库构建，并广泛使用Drawings SDK和Architecture SDK。提到了ODA库对客户的好处，包括与其他专业人士的绘图交换能力、2D和3D设计能力，以及通过保持最新版本自动获得新对象类型的能力。还介绍了Kelly GIS工具，它允许用户通过表示从广泛来源获得的信息来识别任何位置的当前和未来需求。

50:34

🌐 多种文件格式的集成和可视化

本段落讨论了Autodesk Navisworks文件格式的集成，包括NWD、NWF和NWC，以及如何使用Open Design Alliance库来读取和可视化这些文件。介绍了如何使用Visualize Viewer和其他ODA工具来处理和渲染Navisworks模型，以及如何使用Visualize SDK来改进Navisworks模型的渲染。还提到了对Revit RVT文件的支持，以及如何将Visualize数据库导出到多种格式。

55:41

🌐 点云数据处理和数字孪生需求

本段落讨论了点云数据处理的增长以及数字孪生需求的增加。介绍了ODA的点云引擎，它可以处理各种点云格式，并且与其他ODA产品紧密集成。讨论了ODA提供的工具集，这些工具可以读取RCS和RCP点云格式，将非结构化格式（如PTS或XYZ）转换为结构化的RCS文件，并可视化点云。还提到了实时转换非结构化点云的创新，以及如何使用ODA Viewer导入和转换XYZ点云格式。

Keywords

💡互操作性

互操作性是指不同系统或组件之间能够相互通信和交换数据的能力。在视频中，提到了Oda的完整互操作性是其核心优势之一，特别是在处理BIM（建筑信息模型）数据时，能够实现不同软件和格式之间的无缝连接。例如，通过IFC SDK（工业基础类标准）的支持，Oda能够实现高质量的可视化和数据访问。

💡IFC SDK

IFC SDK是Oda推出的一个软件开发工具包，专门用于处理IFC（工业基础类）文件。IFC是一种开放的文件格式，用于建筑信息模型（BIM）数据的交换。IFC SDK使得开发者能够在他们的应用程序中集成IFC文件的读取、编辑和可视化功能。

💡BIM

BIM（建筑信息模型）是一种数字化工具，用于表示和管理建筑和基础设施项目的物理和功能特性。BIM不仅仅是三维模型，它还包含了大量的信息，如材料属性、成本、项目时间线等。BIM的应用可以提高设计、施工和运营的效率。

💡Open BIM

Open BIM是一种开放的建筑信息模型标准，旨在促进不同软件和平台之间的数据交换和协作。它支持使用开放的数据格式，如IFC，以便不同的项目参与者可以共享和利用项目信息。

💡验证引擎

验证引擎是一种软件组件，用于检查数据是否符合特定的规范或标准。在BIM领域，验证引擎可以确保模型数据的准确性和完整性，通过检查模型中的几何关系、属性值等是否符合行业标准或项目要求。

💡Express

Express是用于描述和操作几何模型和数据模型的高级编程语言。在BIM领域，Express用于定义模型的几何形状、拓扑结构和属性关系。它是一种强大的工具，可以用于创建复杂的几何和逻辑表达式。

💡几何处理

几何处理是指对三维模型中的几何形状进行创建、编辑、分析和优化的过程。在BIM中，几何处理是至关重要的，因为它涉及到建筑物的实际构造和可视化。

💡可视化

可视化是指将数据或模型转换为图形或图像的过程，以便用户能够直观地理解和分析信息。在BIM中，高质量的可视化对于展示设计意图、进行项目审查和沟通至关重要。

💡数据交换

数据交换是指在不同系统或平台之间传输和共享数据的过程。在建筑和工程领域，数据交换通常涉及设计信息、项目数据和模型文件，以便不同团队和利益相关者可以协作工作。

💡ISO 10303-3

ISO 10303-3是国际标准化组织（ISO）制定的一个标准，专门用于描述产品数据的交换，特别是在工程领域。它通常与STEP（标准交换协议）文件格式相关联，用于在不同的CAD系统之间交换产品数据。

💡API

API（应用程序编程接口）是一组预定义的函数或协议，允许不同的软件应用程序之间进行交互。在BIM领域，API用于访问和操作建筑信息模型中的数据。

Highlights

去年推出的IFC SDK是业界首个专业且经济实惠的IFC解决方案，已被广泛采用于数据访问、几何处理和高质量可视化。

今年新增了高级验证和协作工具，包括新的验证引擎支持MVD和BCF，以及支持XML和REST API。

新开发的IDS标准和对Revit以及Knives Fox文件的支持，以及DWG的架构、土木和地图扩展，使ODA在BIM行业中提供了独特的服务。

IFC SDK的实施与ISO 1030和3标准的实施紧密相关，引入了几个与ISO兼容的功能。

新的Express解释器根据ISO 1030和3标准第11部分实现，无需依赖第三方技术。

Express解释器的主要部分包括解析器、语义分析器和解释器，可以处理任何基于Express的格式。

IFC XML 2x3的读写支持自22.6版本以来已在AUDI FC SDK中提供。

根据会员的请求，我们还增加了对旧版IFC模式的支持，如IFC TWIX FINAL和TYPE C2X2 FINAL。

ODA参与新架构单元测试期间，使用这些应用程序可以将Land XML和XTR对齐数据转换为IFC。

新IFC 4.3标准支持铁路和道路相关领域的正式化，尽管4.3仍在进行中，但与Building Smart Rail小组的合作结果是IFC 4.3半径候选4的早期实现。

Web Infinity是CAD联盟集团的创始成员之一，也是Autodesk产品在2000年代的主要分销商之一。

Web Infinity的核心业务是计算机辅助设计，拥有超过20年的应用开发和CAD计划自动化经验。

Web Infinity的客户包括SNCF、Solaton Batchi和Solatanja for Isonet、Ontargas Hammond、Smartcast等。

ISO 19650称之为交换信息要求，定义项目中IFC文件所需的属性和可能的属性值。

IDS项目的现状是我们已完成第一阶段，最新版本是0.4，可在GitHub上获得。

错误日志是ISC SDK新验证引擎的最低级别，可以在某些情况下进行隐式修复。

SDAI验证是一组预定义的可解释或不可解释验证规则，包括字符串正确性验证和对象间关系验证。

最高级别的验证是在IFC SDK中可用的格式依赖验证，包括对新IDS要求的验证。

验证工具已添加到Open IFC查看器中，允许用户选择要执行的验证任务集。

OpenIFC查看器中还有一个实验性的验证插件，用于根据IDS规则进行验证。

BIM协作格式API新增了一些功能，如评论和主题管理，以及创建、编辑和删除更新的BCF项目。

Open Cloud解决方案提供了多格式文件处理，允许使用任何设备上传文件，并使用现代浏览器在浏览器中可视化文件或获取分析信息。

Transcripts

[Music]

now let's move to the next fundamental

part of oda's complete interoperability

mission an interrelated set of beam

technologies

last year we shipped out ifc sdk the

industry's first professional and

affordable

solution for ifc

it has been rapidly adopted by

member companies and is widely used for

data access geometry processing and high

quality

visualization ifc is just one piece of

open beam puzzle

this year we've added

advanced validation and collaboration

tools to our beam offering this includes

a new validation engine support for mvd

bcf with both xml and rest apis

and the newly developed ids standard

our support for openbeam standards from

bsi

together with support for revit and

knives fox file

and architecture civil and map

extensions for dwg give oda a unique

offering within bim industry

the implementation of our ifc sdk is

closely related to the implementation of

iso 1030 and 3 standard well known step

so we've introduced several

iso-compatible features in our sdk these

include

the ability to compare application

instances delete from a model near copy

of instances in the same model

as simplified early bound api for users

who want to have additional checking on

the compiler

and the ability to get attribute type

names in camel case as they exist in

express scheme starting this year ifc

sdk also includes a powerful new express

interpreter

implemented according to iso 1030 and 3

standard part 11 without any

dependencies on third-party

technologies

the new interpreter provides complex

functionality such as express schema

runtime initial initialization

derived attributes and where rules

evaluation

[Music]

the main parts of express interpreter a

parser which takes an x file as input

and creates abstract syntax trees for

expressions semantic analyzer which

checks variables and types and fields

expressed schema metadata and

interpreter which evaluates derived

attributes and were rules using late

bound access to attribute values

the interpreter can be used with any

express based format it has been tested

with several step and these two schemas

in addition it's used for ifc

we'll be making some additional

improvements to the interpreter during

the coming months but the current

version is ready for production use

this is a short demonstration of the

express interpreter in action the run

shows the evaluation of the most

complicated derived attribute p of ifc

axis 2 placement 3d the express function

fc build axis returns evaluated

coordinate system as an array of vectors

the evaluation is complicated by the

fact that the function itself has

several nested function calls so the

full express source code is quite

complex and can be seen here let's

prepare input data the x-axis with

following coordinates and z-axis notice

that that axis isn't normalized now

let's call the evaluation and return the

result into an aggregate everything

passed okay and let's print result

vectors on the screen x axis is the same

as input that axis is normalized now and

y-axis was calculated by the function

ifc cross product

read write support for ifc xml 2x3 has

been available in audi fc sdk since

version 22.6

here's an ifc xml read write demo let's

open a simple ifc file the file size is

about 17 megabytes and we'll export it

to ifc xml

f6ml file size is usually 5 times larger

than the size of the source ifc file so

we've just created a file that's about

90 megabytes

then let's reopen it and you can see

absolutely the same geometry attribute

values spatial structure and so on

based on members requests we also added

support for legacy ifc schemas such as

ifc twix final and type c2x2 final so

old files can be produced by fc sdk

in addition building smart company in

collaboration with domain specialists

and software vendors is going to

introduce new ifc 4.3 standard which

supports formalization for rail and road

related areas at advocacy 4.3 is still

in progress but the result of our

collaboration with building smart rail

group is an early implementation of ifc

4.3 radius candidate 4 supported by ifc

sdk

the recent release candidate is more or

less stable and introduces

railroad-specific entities and new

classes for geometrical representations

of alignments using several new curves

and geometrical sets

[Music]

several ifc forex tree files with

alignment semantic and geometric views

were produced by oda example

applications that convert land xml and

xtr alignment data to ifc during oda

participation in the new schema unit

testing period

these applications can be found in

examples section of ifc sdk

and now let's look at a short

demonstration of ifc forex three

geometrical abilities in openafc viewer

using one of these files

alignment can contain different types of

segments which describe configuration

follower paths independently from each

other and construct resultant alignment

curve on the final stage of

visualization

each segment trims underlying base curve

that uses simple primitives such as ifc

line and afc circle or new complex

curves such as isc clothoid or other ifc

spiral subtypes these new types of

curves are mainly used in road and rail

design we also implemented support for

several geometrical entities as ifc csg

primitives for the special asus modeler

and afc triangulated a regular network

which is typically used for terrain

representations in recent ifc schemas we

implemented a new sweep operation for

the oda facet modeler so facet modeler

now supports the full set of modeling

operations required for ifc

material support was significantly

revised several versions ago to reduce

the amount of materials created during

vectorization

[Music]

created by one of the founding members

of the cad alliance group one of the

main distributors of autodesk products

in the 2000s its core business

computer-aided design

20 years in the realization of

applications and automation of cad plans

a flagship product side view independent

software that does not require any other

cad software and allows you to integrate

cad solutions into your developments web

infinity is know-how in development

experience of more than 20 years in the

realization of applications for our

customers knowledge of standard

languages

knowledge of standard databases

the main customers of web infinity are

sncf

solaton batchi and solatanja for isonet

from the vinci group ontargas hammond

smartcast etc at the request of our

customers we have integrated the import

of ifc files in order to integrate them

into their dwg format on their project

tyview using oda libraries

will allow you to open an ifc file in

order to transform it into a dwg or dxf

file to be able to integrate it into

your projects you can set sideview to

import ifc entities

either as a block or not by exploding

them into layers and giving the names of

the layers the names of the ifc entity

groups to open an ifc file nothing could

be simpler you do the open function then

you choose the type of file you want to

open in our case ifc you choose your

file

and the ifc entities will then be

transformed into autocad entities

according to your configuration blocks

or polymesh each identity will be

distributed in a set of layers you can

then manipulate this file zoom change

shading mode

you can also change from iso mode to

perspective mode each ifc entity will be

created according to your configuration

either in block or in poly polymesh

the name of the block being the name of

the ifc entity they are placed in

layers being the name of the group of

the entity always following the request

for the configuration

a set of layers will be created per ifc

entity group and you can manipulate

these layers freeze them and unfreeze

them at will

you can then save your project in

autocad dwg or dxf format in the version

you want

you can then open this dwg file either

with autocad or with autocad clone and

manipulate it in the same way and use it

directly in your drawings entities are

kept block or poly mesh and all layers

are preserved opening an ifc file and

importing in dwg format will allow

reading bim formats from revit or any

other software

in order to transform them into autocad

format

and then integrate them into other

applications such as a railway tunnel

plan

here carried out for the greater paris

project and to use it in another

application such as this one

which allows to undo the compensation

boreholes for the company soltonj

[Music]

so in

in march 2020

booming smart international published

the the technical roadmap

and that had kind of a forward-looking

approach to standard solutions technical

services

it looked at modernization and

normalization of ifc

also at the future of api standards like

like vcf

how ifc and the bsd would be more

integrated

and it also noticed a missing piece of

the puzzle and that was this

this more dynamic way to define your

exchange requirements

iso 19650 calls this the

exchange information requirements

so really defining what do i need in my

project where do i need it in an ifc

file what kind of properties need to be

linked what are maybe even the allowed

values of those properties

if there was a standard that we could

just straight read in and check against

that in in sorry that would be that

would be good and also like

it would be

build more confidence in in in the

project

heimans is one of the main contractors

in in the netherlands

so in my specific business units we we

do about 120 projects every year

and

just on a daily basis we've got about 15

bim managers that are checking models

basically based on the on the model

quality pasi was mentioning before

um and in the netherlands in the past uh

sort of five years we've seen a real

uptake on um

main contractors like hyman's

but also fabricators and also advisors

specifying information needs

but they

they tend to always do it in in

you know in the excel format or pdf

format so basically formats that are

human readable

and this igs project

would really enable us to

to then map that

human readable format into a computer

readable format

and then if the likes of you know the

modeling tools for example autodesk

revit and then the checking tools for

example

the likes of solibri

would implement this ids standard that

would basically enable our bim managers

to do the model checking a lot faster

and i guess with a better quality in the

end as well

so it would save them a lot of time

so that

so that's the main interest of

of high months is is basically to speed

up that process on uh

being able to

on one hand distribute

good quality models to our

subcontractors but on the other hand

also check the model files that we are

being given by advisors from the likes

of architects or

engineers etc in the process

yeah i think the most the most

generic common problems like

is that i have an information

requirement i have an exchange

requirement i want to define that

my

my my walls

need to be using um

some kind of a local additional

classification system could be code

class could be nlsfb it could be uni

class omni class

um

and i also want the additional

properties that are the walls load

bearing are the

outer walls inner walls and they also

need that to be consistent with each

other so

those kind of information requirements

are quite um

quite quite logical

and those are the typical requirements

that the um that the ids can facilitate

well one of the

comments from

one of the

people who offers online

rivet training on on facebook

was that uh

he was quite happy to use

uh

basting based on revit quite happy to

use ifc's and so on for export but he

was of the opinion that if you actually

wanted to

save the detailed information you

actually had to type it into the notes

that would be passed across because the

the rfc model as it is isn't

fine-grained enough to actually capture

a lot of the requirements of the people

developing the models

so if we have to have that work around

within the ic model we need a capability

a robust capability that allows easy

extension by people on a one-on-one

basis

exchanging from one to another and i'm

hoping that the ids is the no we're

going to

expect that the ids is actually a good

solution to that problem

ideas it's not

seen as such at this moment but um from

from my perspective from a building

smart perspective

ids is also a bit of a missing link in

this full open bim workflows

yeah basically and i i think also that

we should

ensure that

that

like the use of workflows

uh

say starting

from specifying the requirements and

then

entering the bim data in in the

authoring tools

and then

like checking the data that they all are

fluent so that this

wouldn't be another hurdle

but

instead of

making things more much more small than

they are at the moment the current

status of the ids project is that we've

rounded up phase one

we've done a uh first implementation

i think the latest version is on version

0.4

which is all available on github

and i think this 0.4 version is a really

good version to uh

to start the next phase phase 2

which will be more about

basically getting the software vendors

involved

do implementations and

i guess

do testing afterwards

obviously we're very

eager to you know just like i mentioned

i guess in the kickoff meeting of the

ids project uh to get a few more buttons

in inside of the software that we use on

a daily basis

uh to be able to you know when you do

export from the likes of for example

revit that you know the the ic export

that you're producing is actually as per

the ids

file that you've

imported into the software

and once we we start checking the ifc

file in the likes of solibre you know

there will be a button where we can just

import the the ids standard as well and

just basically say check against this

ids and

it takes a few minutes and then you know

we get a we get a nice report

yeah so i'm very eager to uh to get

those buttons into the software not

limited to to members everyone is free

to join just please come in and help us

validate this and and start implementing

it

you're very welcome to join

[Music]

this great discussion about ids

highlights the point that ifc is always

exported according to some type of

requirement

ifc has been around for decades now and

many different toolkits and applications

have produced millions of ifc files

unfortunately though many of these files

contain errors during the development of

our ifc sdk we encountered a significant

number of ifc files with errors of

varying complexity

from basic syntax errors to topological

errors with incorrect relationships

between

objects

the most basic thing that we can do for

the industry is to provide tools that

can report such errors

in some cases it's possible to make

implicit fixes like transformation of

non-instantiable objects into building

element proxies

so an error logger is the lowest level

of isc sdk's new validation engine the

next level is sdai validation

a set of predefined interpretable or

where rules and non-interpretable

validations that includes validation of

string with correctness validation of

relationships between objects according

to schema and so on

this level is performed by the

appropriate c plus api

sdai calls described in iso

10303 and will be available for all oda

supported express-based formats going

forward including the step format family

and the highest level of validation

available in ifc sdk is format dependent

verifications

these include

implemented collections of validations

on the ifc level

forthcoming mvd

model view definition validation which

is in progress now and validation

according to the new ids requirements

which are currently being developed by

bsi

from the api point of view the validator

class runs through a set of appended

validation tasks for model instances

collects the results of validations and

notifies a set of predefined notifiers

that print the results

on the screen

to a text or html file or user interface

window

optionally validation task

implementations may have a healer

protocol extension attached as shown in

the following demo this demo shows

loading a file with and without

validation and healing

the file was opened with validate and

heal turned off and it has a significant

error

it doesn't have a plain angle unit

assigned to the ifc project

that's why we have a lot of gaps in the

visualization

it has incorrectly drawn some circular

based elements such as walls and parts

of roofs

now i'm going to reopen the file with

validate and heal turned on

the healing heuristics determine that

the file doesn't have plain angle units

assigned to the ifc project

it analyzes the attributes of angle

types to see if they're defined using

radians or degrees

then creates an ifcsi unit instance and

assigns it to the ifc project

as a result we now have totally correct

geometry for walls roofs and other parts

the model validation process can be

resource intensive so it's impractical

to run all validations every time an ifc

file is loaded such an approach makes

sense and can be done for relatively

fast validation tasks on the ifc format

dependent level for the more complex

task of whole model validation on

different levels we've added a

validation tool to open ifc viewer

it allows the user to select the desired

set of validation tasks

here you can see a set of predefined

sdai validation tasks and a set of

loaded ifc level validation tasks that

we'll use to check the model

let's check them all and click validate

after a few seconds we have the result

a list of instances and their attributes

or where rules that have not passed the

validation checks

the list of results can be saved as html

or text and the table can be updated by

applying different data filters

there is another experimental validation

plugin for open ifc viewer we'd like to

mention here

validation according to ids rules

the idf standard is new and still under

development by bsi but oda has developed

an early ids validation prototype

as an implementation of the validation

task interface for our validation engine

here is a dynamically created set of ids

validation tasks in the subtree for

selection

where each task has a loaded ids file

containing validation rules the

collection of these ids files is placed

in a predefined folder on disk

let's select the validations we're

interested in and click validate the

validation is done quickly and the

results are displayed in a standard

manner for further investigation

another useful new feature available in

recent ifc sdk versions is a

customizable event logger which can be

accessed from the c plus api or sdi

the logger is typically used for logging

file loading errors including syntax

errors

non-instantiable or unknown entities in

the file and for geometry compose events

logging

the logger may be used by customers for

any logging related purposes it's turned

off by default and can be turned on by

an appropriate call to the sdai session

instance in openifc viewer the event

logger results are shown in a separate

window which is optionally open just

after file loading and geometry

visualization

several new features will add to bim

collaboration format api which is a part

of ifc sdk

such features are related to comments

and topics management as creation

editing and deleting

updated bcf project can be saved into

bcf zip file

many of bcf xml api features are used to

implement open fc viewers vcf manager

pilot

let's perform a single ifc file review

using this feature

it's needed to create a new bcf project

and add three topics the first mode of

the tool adds selected objects on

snapshot

the second adds selected objects with

highlightings

and the third mode finds intersections

with initial entity and create snapshot

with all intersected objects

let's save our project and open it in

third-party pcf viewer

we will add some comments here and save

changes into the same file

now let's reopen it in pcf manager

palette and read comments we've just

added

one topic has become unnecessary so it

has to be deleted

[Music]

in the field of construction and design

it is becoming difficult to work without

beam models

which allow you to more efficiently plan

design and build

cloud beam solutions provide the more

efficient way to organize communication

between all projects participants

and it solves problem of single source

of truth but mostly all cloud beam

solutions work with the ifc file format

or their own internal file format

and to start work with such solutions

you need to have an appropriate software

to convert your file to an appropriate

file format

and only then you will be able to upload

your file open cloud provide

multi-format file handling

which means that you can use any device

to upload your files

and then you can use any modern browser

to visualize your file in the browser or

getting analytical information

and this is only a part of functionality

that open cloud offers open cloud server

provide collaboration functionality as

well for joint work of several users

they can be com assigned on the project

by the project owner or the

administrator

and then users will be able to create

issues create reports leave comments and

do other operations as well also the

administrator or the project owner

can assign specific settings for this

user on this project if you need you can

make your project public to do this you

need to change project settings open

cloud server support bcf rest api which

is a part of the opencd specification

that is well accepted in the bim

industry

with the server api you can work with

such entities like projects topics

events and others

for user authentication we have

supported the oauth 2.0 protocol which

is a part of the bcf2

tools compatible with the bcf rest api

can work with the open cloud solution

mostly without any problems

and some words about our future plans

on the ifc side

there will be some significant sdi

improvements as our one new ifc runtime

implementation

gives the ability to work with express

based formats such as ifc or step

without generated classes

so data can be accessed just after

loading and processing of exp files

generated early bound classes

however will still be available

for those who prefer this way of working

with

with data

we are going to continue our work on

express interpreter optimization and on

implementation of new features based on

on the interpreter

also we are going to extend our

collaboration support with the recent

bcf3 format in conjunction with our

participation in bsi opencd initiative

our nearest plans include

visualization support for new entities

in a forthcoming

ifc 4.3 format

mvdxml support for validation

is

still under development

and is it's going to be shipped out as

production in a few months

and of course we will continue to

support development of the new ideas

format and its implementation as part of

oda ifc sdk

[Music]

bmrb is ods standalone toolkit for the

import visualization and creation of

revit models bmrv is an active

development product for ongoing being

done for update and public api for

provided more extensive support element

creation and editing bmrv now can load

in the latest file format 2022

the public api was enhanced for

possibility to provide full access to

data in the latest file format

all the files from version 2015

onwards are automatically updated to the

latest version during loading

giving clients applications possibility

to

give consistent access to the data

regardless underlying file version bmrv

also can write files in 2022 format

[Music]

while reading and visualization are in

production state i want to show

visualization for several files we draw

all elements with geometry beam rv

supports materials that can contain data

for different visual styles like fill

patterns textures colors and so on

on the screen you can see an example of

a complex model with a set of buildings

this is example of

shaded visual style

and another example of complex file in

realistic visual style

we also can draw sections section

geometry is not stored inside file

and bmrv generates this geometry on the

fly you also can see annotation elements

and one more example sections

several sections on the screen

elements have parameters they are not

stored in the file each element collects

them by its hierarchy

you can get list of parameters and get

value for each of them

we can select one element and see its

parameters they can be grouped by area

or alphabetically you also can see the

built-in representation

next i want to show the latest

enhancement in bmr v visualization

first is visualization of disciplines

bmrv has a discipline parameter but

element doesn't have such settings in

the file to support this functionality

we researched and added such

functionality to the categories

we also changed the visualization

process for the ability to move active

category to the first plan and draw

other elements with another visual style

the result you can see on the screen

[Music]

visualization of schedules

schedules normally doesn't contain data

inside files they have only rules on

settings for collections is data from

elements we implemented an initial

version for collecting this data

for schedules by elements it

supported formatting grouping and

selecting data

and we continue working on more complex

cases for

support full functionality of schedules

in the product the call element

visualization was implemented a year ago

but this year we added advancement

functionality for this element

first we supported a clipping for the

call element and also a supported

case when a part of the call elemental

place it outside of the host element in

this case we mustn't draw the part of

the recall which

store it outside of host element and the

result you can see on the screen

[Music]

next very important area is possibility

to edit or create elements in revit

files this functionality is still under

development but we can create a set of

elements this is curve elements

it can contain different lines arcs and

so on

materials different

views custom parameters direct shape and

free form elements we complete that work

on form elements and their word forms

this is base element for creation family

geometry they contain

the wrap geometry inside they also can

create family game combination this is

boolean operation on form elements in

family database

and we also can create openings and host

elements inside family database we are

working on interactive creation and

editing of forms elements in this case

the element must be put into edit mode

which will change element to the sketch

the customers create a sketch when

editing is finished the sketch will be

verified by odi constraint solver and if

the data is correct it will be used to

create the element

currently we can create all forms

elements this way or convert solid form

to the void we continue working on

editing in this mode

[Music]

we continue actively works on family

input we can import family database and

create internal database

create family symbols

we can activate family symbols but this

works only for active family type family

has geometry only for active family type

internal and we use this geometry for

creation geometry in the symbol

we can create family instances for

activated family symbols

we also must modify geometry of host

element for hosted family instances and

this already works

we continued working on recalculating

familic geometry by family types a

family contains geometry only for active

family type we implemented the initial

version of rebuild geometry by type

recalculation of the family geometry

requires constraint solver

the solver is used to update and verify

sketches of forms modification

dimensions and ref planes if the

verification passes then the geometry of

the form can be recreated

so we need to update geometry of all

forms in the family and perform boolean

operations on them

we can change

family type update geometry and save the

file

then we import the family into a model

as a new family and activate the symbol

for the active family type

after that we can use this symbol for

creating different family instances so

for example we can create windows with

different sizes

we can recalculate geometry of a family

for existing types but we continue to

develop our constraint solvers for the

ability to verify and create new

dependencies on the sketch we need this

for the ability to modify and create new

family types

we can recalculate geometry in the

family database

but we are working on the ability to do

this in the model

this will provide the ability to occur

all family symbols symbols in

imported families and as a result we

will be able to import families with

several types activate all family

symbols and create family instances for

any of them

[Music]

ifc export for revit file

you can see the example on the screen we

open the model of a library in order

beam application

visualize it and call ifc expert

currently the expert supports the ifc

2x3 version

we will open the resultant ifc file in

open ifc viewer

and look at the result

the implemented expert of project

information measurements units building

construction site collection and

translating levels for ifc

we can convert all geometries of

elements and materials for each element

we get visible geometry by settings

translated and modified

we have to modify it because geometry

representation is different in two file

formats most of 3d geometries in revit

are verb geometry

but for ifc 2x3 we need to create meshes

in other cases we need to create data

and settings for building the geometry

during interpretation of ifc file

each case should be researched and

implemented

in the expert

we implemented the ability to save revit

parameters as properties

also we implemented several ifc property

set and we continue work on this

functionality

the example property set you can see on

the screen

[Music]

another set of od is the case for beam

workflows includes vertical extensions

for dwg to work with architecture design

and drafting civil infrastructure design

and guess data

[Music]

architecture sdk contains all the

architecture primitives such as walls

doors windows and more in addition it

supports construction documentation

workflows through associative dimensions

and shadow tables and other classes

architecture is the case a mature

product constantly improved the ecf

focus was improving the stability of

stairs and railings

[Music]

but architecture objects do not exist in

isolation to design a house you need

landsat earthbox as well as pipes roads

and other infrastructure objects or

these civil sdk is designed to handle

these areas currently civilized decay

contains models to work with cocoa

points alignments and surfaces

pipe networks and structures

corridors and assemblies catchment areas

and others

all this civil as the case supports

object versions from 2006 to 2022

and visualization for all objects

creation is implemented for cocoa points

tin and grid surfaces alignments

profiles and profile use this year focus

was in two main directions roadway

design improvements and surface

enhancements roadway design improvements

include 14 new transition curves

implemented please see the table

alignment masking support now a part of

the entity may be hidden and get near a

station algorithm rework that allowed to

provide additional accuracy surface

enhancements are improvements to

triangulation engine that decrease the

creation time for a 100 000 point

surface from hours to seconds contour

smoothing support that significantly

improved the appearance of triangulated

surfaces in addition a sort of

improvements for visualization and

format support were done

[Music]

our map project allows scad and gis data

to work together in one application only

map sdk connects turn this database

sdf shp etc and imports these data into

a dwg file in a dwg representation as db

entities similarly dwg data can be

converted and appended to a gist

database this year we introduced several

new features and improvements to map sdk

such as map cage support modification of

map entity geometry data and map input

command map cache support allows audi to

reference directly a gwes file a file

that is created when changes to a gis

database are made but not committed for

example if changes are made to a map

layer a copy of the database a gws file

is created and this copy is visualized

instead of the original database

thus map cage feature allows the support

of this object's graphics data

modification

this example shows the entity geometry

modification after the preliminary

actions were able to zoom to extends and

dragon to see our lair the roads layer

of the new york city zooming closer we

see that one of the roads does not fit

the background map let's fix it simply

select the road and drag it by its grip

points

please note that this road is a

temporary map feature object which are

commonly inherited from simple db

objects therefore grid points of the

base class may be used the map feature

object has functions to synchronize its

geometry data with gis database one more

improvement involves 3d layer

visualization as you see initially the

layer was visualized in 2d but we can

switch to a 3d mode the new map input

command inputs the gis database data

into a dwg representation such as odd

dbm polygon odw polyline etc currently

it can connect to sdf shp

wfs sqlite pos3 and mysql databases the

input is not limited to simple geometry

only complex data may be inputted as

well in this example you see a map input

command

select the connection type to shp and

select the shp source file

next determine the gist layer and after

additional input options we see the

result

as you see all the three dwg extensions

architecture civil map taken together

allow us to make a step in the direction

of cim city information modelling that

attempts to solve the challenges faced

nowadays by large and modern cities

[Music]

the professional drawing modeling system

has changed over the years and is now

built around the open design alliance

libraries and makes extensive use of the

drawings sdk and the architecture sdk

as founder members with access to the

source code and equally importantly a

two-way good working relationship with

the oda teams

the move to the oda libraries has

immediately been of great benefit to our

clients they can interchange drawings

thoroughly with other professionals and

they now have the ability to design in

2d or 3d as they require

furthermore by keeping up to date with

our latest versions they automatically

have access to many of the new object

types which each newer version of dwg

supports

the markets in which we are operating

are changing fast it's not that long ago

that users were content to create

two-dimensional plans and elevations

that changed neatly three-dimensional

models and they still demand more

in the current architectural environment

there's a need to combine data from

multiple sources and utilize that data

to optimize any given development to the

location environment and population

within which it is to be cited

this is where our latest addition kelly

gis comes into his own

kelly gis enables users to identify the

present and future needs of any location

by enabling the representation of

information gained from a wide range of

sources in a single coherent account

document

the information leaked can not only

allow the designer to make decisions

based on current data but also to see

and utilize future trends

examples of the information the use of

caddy gis can yield include identifying

local needs based on availability of

similar resources or facilities within

the area

identifying prime locations for the

siting of a development including land

and property values and ownership

analyzing population demographics and

comparing to available resources

identifying previous planning

applications made for a particular

location providing information of

possible chances of success or rejection

information on transport links below

rail road or public transport

and highlighting problem locations such

as excellent block spots congestion

parking availability and restrictions

low emission zones access charging tree

protection zones flood risks and many

more

all of this can be done in caddy with

results combined with the model and

construction data itself

so utilizing the power of the oda sdks

has enabled our team to concentrate on

the vertical applications evolving caddy

from its simple origins as a

two-dimensional drafting system to a

powerful hybrid solution combining the

best at drawing modeling and gis

[Music]

few words about autodesk navisworks

files formats

these formats integrates various

projects from various implementers in

various files formats into one file it

allows us to use a whole picture and

analyze these projects together

there are three main file formats nwd

nwf and nwc nwd is a file format that

contains all the inputted files inside

itself

nwf doesn't contain imported files

inside itself but just contains

references and transformation matrices

inside also when navisworks imports

files it creates cache files named and

wc

files can contain such information as

clash collision testing results

annotation to mark interesting places

sectioning and so on also it can contain

data like animation or planning

[Music]

we expanded api for access to model

items data like properties model units

and flags

the next step i would like to tell you

about the enhancements that we were able

to achieve in our plugin for visualize

here you can see the old version of odd

visualize viewer on the left side and

the newest one on the right side we

added an automatic settings of the

texture folder from the registry for

windows platform in early versions it

was needed to copy textured directory

into directory with visualize viewer we

improved overall stability and

performance of models visualization to

improve hidden objects detection we had

to implement the reading of shadow

override element stream

now bim vsdk has access to these data

nodes from modules logical hierarchy

visually type at now added to visualize

database like tv layer objects all the

visual styles are now supported

[Music]

one small hint

nvidia visualize plugin has example how

to check if model node is inside of

clipbox i would also like to add a few

words about improving the rendering of

navisworks models using tools from audi

sdk let's open an nwd file with our new

mfc based application we can see that

the object tree was loaded visualize it

the model was rendered we are able to

zoom and rotate the model here we can

see new materials and textures if we

select an item on the tree the

corresponding graphical representation

will be selected and zoomed in

for example flowers and levels we added

support of visual styles

realistic shaded view without texture

hidden line and wireframe now while

rendering the nodes hidden flag value is

also taken into account the model can be

zoomed to extends

then to selected items users can also

choose a vectorization device

now we changed it to opengl we also

improved material settings to support

bump and opacity textures

here you can see three screenshots

simple texture without bump texture bump

texture and full texture we added

support of tube geometry while gigs

rendering also we implemented style text

rendering in visualize

one of the largest parts of our work

last year was to start writing correct

nwd files we started this task with

resaving nwd files which were opened

with vmnv sdk in the scope of this task

bim nvt implemented saving of streams

like lights elements

spatial hierarchy and shed override

elements saved nwd files won't be

correct without these streams a lot of

time was spent investigating and

implementing spatial hierarchy true

generating the next step was to create

an empty database and add methods to

fill it bim and v users can add new

nodes to hierarchy and geometry data to

model items it's possible to apply

transformation mattresses and materials

added possibility to set viewpoints data

like camera settings to demonstrate the

possibility of creating new nwd files in

the beam and vsdk we created and console

application create dummy nwd excel this

demo application can serve as an example

of how to create a new nwd file from

scratch by adding new hierarchy geometry

primitives and setup camera here we run

the dam application and got a new nwd

file as the output this file contains

several model items with geometry like

shells and circles it also shows how to

apply textures to objects after file

creation we can open it in visualize

your or navisworks and check the

correctness of object hierarchy geometry

and textures the source code of this

demo application is available for

customers

this year has not ended yet so we are

going to decrease the memory consumption

women vsdk takes while working with huge

files we've already started the

implementation of grids and levels

classes women of sdk users can try this

api for this data selection sets streams

also started to be parsed due to the

plans for this year and we are going to

finish the implementation by the end of

this year i hope we'll have time to

implement animation stream passing and

provide api for working with these

classes in release 22.12. let's open

revit's rvt file with all visualize

viewer

it takes for a while here we can see the

3d view and the hierarchy of imported

rvt file to visualize database from the

main menu we are able to export

visualize database to various formats

let's export it to nwd file format the

export has finished and now we can open

the result in the same odd visualized

viewer we can see the file has been

exported well let's check this file in

navisworks as we can see now this works

successfully opened our file if we take

a look to the left panel we can observe

the same object's hierarchy like in

visualize database materials and

textures were exported as well

[Music]

growing renovation activity and

increased demand for digital twins have

the point cloud topic more popular in

recent years the main advantage of point

clouds is obtaining accurate model of

real objects which is in demand in both

cad and beam ud began working with point

clouds to provide interoperability for

the recap point cloud data

that can be embedded in a dwg file after

several years of development we now have

an advanced point cloud engine that is

tightly integrated with other oda

products and can be used to process

various point cloud formats oda provides

a set of tools to process point clouds

the tools are designed to solve the

following tasks read rcs and rcp point

cloud formats convert unstructured

formats like

pts or xyz to structured rcs file

and also visualize pan clouds the main

supported point cloud format is rcs the

format is the core of our opinion cloud

engine during visualization our engine

checks the visibility of the point cloud

in the current viewport

and selects the appropriate level of

detail this approach allows you to

efficiently read large point cloud

projects for example the following

project is a model of a building

containing about 12 billion points

and occupying about 60 gigabytes of disk

space

one of the latest innovations in our

tool set is on the fly conversion of

unstructured point cloud during

visualization

for example if you open a pts file in

oda viewer

your pts file

will be converted to a structured rcs

file

and efficiently rendered using our base

engine oda viewer will similarly import

and convert the xyz point cloud format

which has no strict description

so it's not a simple task to process all

data cases automatically for this format

our sample application contains an

additional dialog

which allows the user to guide the

conversion process