Lesson 15: Export OpenCascade assemblies to STEP with names and colors

👀👇 This lesson explains how to compose a CAD assembly with the OpenCascade library using its OCAF/XDE framework. We then export the assembly with colors and names to a STEP file.

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✊ C O M M U N I T Y

- Our blog: http://quaoar.su/blog/
- Our forum, knowledge base: http://analysissitus.org/forum/index.php
- Our Open-source CAD platform: http://analysissitus.org/

🔗 L I N K S · T O O L S

- Git repository with lessons: https://gitlab.com/ssv/lessons
- Open Cascade library: https://github.com/Open-Cascade-SAS/OCCT

⏰ T I M E S T A M P S

0:00 Introduction. OpenCascade XDE for assembly storing and export it to STEP format.
1:24 Clone lesson's sources.
2:02 How to initialize and populate TDocStd_Document. TDocStd_Application class.
4:00 Design and add a wheel shape to XDE document.
8:50 What is XCAFDoc_DocumentTool class.
11:00 Design and add an axle shape to XDE document.
14:00 How to add (sub-)assembly to XDE document.
16:30 How to create a compound. TopoDS_Compound class.
20:40 How to store XDE document (.xbf) to the disk.
22:05 How to inspect OpenCascade file's structure. OpenCascade DFBrowse tool.
23:35 Add a chassis assembly to XDE document.
26:30 How to export XDE to STEP format. STEPCAFControl_Writer class.
31:05 How to set the names to parts and assemblies in XDE document. TDataStd_Name class.
33:15 How to inspect OpenCascade file's structure in Analysis Situs.
34:36 Missing names for components. How to set the names to components.
36:45 How to set the colors to parts in XDE document.
38:45 How to inspect OpenCascade file's structure without any CAD viewer.
39:30 How to set the colors to sub-shapes in XDE document.
45:05 How to rotate the parts in OpenCascade. gp_Quaternion class.