AEC DevBlog

RevitAPI: how to find code examples for macro of python or ruby?

中文链接

By Aaron Lu

One of the new features of Revit 2016 API is that Revit now supports macro written in Python or Ruby.

But there is no Python or Ruby code examples in Revit 2016 SDK. So how to get started? Well, most of people did not notice that the code examples are hidden in the default macro projects created by macro manager, see below image, the project is the default python project, there are several "if False" statements, if you remove the line of "if False", uncomment and unindent 4 spaces to methods below it, the methods will become available macros and appear in the macro manager, and you will see the same "if false" in Ruby projects too:

Autodesk is hiring an evangelist of Revit API & BIM web services in Shanghai or Beijing!

By Xiaodong Liang

This is an exciting opportunity to be part of Forge & ADN team of Autodesk in Shanghai or Beijing, China. We are a global team, providing consulting services to worldwide developers & partners of Autodesk. We are running two programs: Autodesk Developer Network (ADN) and Autodesk Forge. The former is mainly for APIs of traditional desktop products, the second is for the brand new web services.

We  evangelize Autodesk API & web services, help Autodesk partners to find the right technologies, assist them to make things differently, more successful and be consistent developing in the eco-system of Autodesk. This will positively impact Autodesk’s business. You will provide technical assistance including application designing, customizing, trouble shooting, writing samples, training and mentoring etc.

Autodesk has a breadth software across designing, visualizing, collaborating, making and using etc. We have transited to the cloud and is providing APIs through those cloud-based services. We are looking for someone to provide evangelistic API support for Revit, and we also hope to find someone excited by the world in the cloud.

Those who work or study abroad and want to pursue their career in China are also welcome! (mandarin is required)

Requirements

• A bachelors' degree or higher in computer science, architecture, structure, civil engineering, BIM or related field.
• At least 2 years hands-on programming experience (including time in university for a concrete research project).
• At least 1 year hands-on experience on Revit API. Skillful in .NET programming.
• Intelligent mind and ability to quickly learn new software development technologies. Enthusiastic in experimenting and writing sample code.
• Written and verbal English skills are important. Ability to be patient and communicate across cultures. Other language fluency is also a great asset.
• Good team player: Easy to work with team members across various cultures.
• Ability to troubleshoot software and programming problems. Good understanding of techniques to debug software will be of great value.
• Enjoy interacting with people – including one-on-one conversations and presenting to audiences at conferences.

Preferred Qualifications

• Comprehensive knowledge on various technologies, especially web/cloud/mobile developing is preferred.
• Experience with other Autodesk products and their APIs will be valuable.
• Experience of BIM, Operation Maintenance and IoT will be plus.

Contact: Xiaodong Liang ([email protected])

RevitAPI: Document.ExportImage exports some .jpg files when setting ImageFileType set to PNG

中文链接

By Aaron Lu

Image export feature is available in RevitAPI, that is: Document.ExportImage method, a real example is:

FilteredElementCollector FEC_Views = new FilteredElementCollector(OpenDoc).OfClass(typeof(View));
FEC_Views.OfCategory(BuiltInCategory.OST_Views);
StringBuilder sb = new StringBuilder();
foreach (View View in FEC_Views)
{
    if (View.IsTemplate) continue;
    IList<ElementId> ImageExportList = new List<ElementId>();
    ImageExportList.Clear();
    ImageExportList.Add(View.Id);
    var NewViewName = View.Name.ToString().Replace(".", "-");
    var BilledeExportOptions_3D_PNG = new ImageExportOptions
    {
        ZoomType = ZoomFitType.FitToPage,
        PixelSize = 2024,
        FilePath = ParentFolder + @"\" + NewViewName,
        FitDirection = FitDirectionType.Horizontal,
        HLRandWFViewsFileType = ImageFileType.PNG,
        ImageResolution = ImageResolution.DPI_600,
        ExportRange = ExportRange.SetOfViews,
    };

    BilledeExportOptions_3D_PNG.SetViewsAndSheets(ImageExportList);
    try
    {
        OpenDoc.ExportImage(BilledeExportOptions_3D_PNG);
    }
    catch (Exception ex)
    {
        sb.AppendLine(View.Id.ToString());
        sb.AppendLine(ex.ToString());
    }
}

This program can export all the exportable views into .png file.

In general, there is no problem, but for some special revit files, it will export some .jpg files as well, why that happens even if we set the exporting format to .png using HLRandWFViewsFileType = ImageFileType.PNG?

The reason is: ImageExportOptions has different settings for two types of views: (1) hidden line and wireframe (HLRandWFViewsFileType property) and (2) shadow views (ShadowViewsFileType property), so we have to set ShadowViewsFileType to .png as well, then the problem got solved

    var BilledeExportOptions_3D_PNG = new ImageExportOptions
    {
        ZoomType = ZoomFitType.FitToPage,
        PixelSize = 2024,
        FilePath = ParentFolder + @"\" + NewViewName,
        FitDirection = FitDirectionType.Horizontal,
        HLRandWFViewsFileType = ImageFileType.PNG,
        ShadowViewsFileType = ImageFileType.PNG,
        ImageResolution = ImageResolution.DPI_600,
        ExportRange = ExportRange.SetOfViews,
    };