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AutoCAD 2010 APIs The Rice and the Wine Stephen Preston

About the Presenter Stephen Preston DevTech Americas Manager Autodesk Developer Network Autodesk, Inc. Stephen has been a member of the Autodesk Developer Technical Services team since 2000, first as a support engineer and then as manager of the EMEA (Europe, Middle East, and Africa) Team. In those roles, his responsibilities included support for the AutoCAD APIs, including ObjectARX and AutoCAD .NET, as well as AutoCAD OEM and RealDWG technologies. Currently, he manages the Developer Technical Services team in the Americas and serves as Workgroup Lead, working closely with the AutoCAD engineering team on future improvements in the AutoCAD APIs. Stephen started his career as a scientist, and has a D.Phil. in Atomic and Laser Physics from the University of Oxford.

Autodesk Developer Network Access to almost all Autodesk software and SDK’s Including early access to Beta software Members-only website with 1000s of technical articles Unlimited technical support Product direction through conferences Marketing benefits Exposure on autodesk.com Promotional opportunities 1 to 3 free API training classes Based on user level www.autodesk.com/joinadn

APIs and Porting The Rice The Wine Making sure your application runs Basic steps to support the next release The Wine Opportunities to add value Using the new features and APIs to increase the value of your and our products

The Rice Binary incompatible release Function signature changes RibbonBar Installer change

The Rice – Binary incompatible release ObjectARX requires Visual Studio 2008 SP1 Rebuild using new ObjectARX ‘17’ branded libs now ‘18’ New .NET assembly versions Much easier than AutoCAD 2007

The Rice – Function signature changes Custom objects/entities ‘Search and Replace’ changes InputPointMonitor New function definition Old definition deprecated Other minor changes See Migration Guide Minor changes in .NET too

The Rice – Custom Object changes Name changes to overridden functions Before: public virtual foo(…) After: protected virtual subFoo(…) Necessary for new Overrule API

The Rice – CUI API and UI Update Reflects UI changes to RibbonBar/Menu Browser Significant runtime RibbonBar API changes AdRibbon.dll

The Rice – Installer change Increment major version number R17.2 -> R18.0

Demo Basic steps to port your ObjectARX application VS2008 migration wizard Custom object name changes Reference new Lib files

ADN API Wishlist Survey .NET Developer’s Guide 116 42% Expose ObjectARX global functions to .NET 102 37% .NET support for custom objects 97 35% Integrated Workspace/Menu/Toolbar/CUI/ATC/Palette API 94 34% Enhanced 3D solid editing API 70 25% Improve accuracy of AutoCAD at large coordinates 65 24% CUI API for Ribbon Bar 55 20% .NET Property Palette API 53 19% Access to Debug Symbols database for ObjectARX applications 50 18% Action Recorder export to .NET code 39 14% Enhanced Undo API 33 12% API for importing materials definitions in ATC files into AutoCAD 10 4%

The Wine – New APIs Parametric drawing Freeform modeling Overrule protocol CUI API and UI update And the rest …

A word about product features This presentation is about the new APIs. For information on product features visit: http://heidihewett.blogs.com/

The Wine – Parametric drawing Inventor design workflow in AutoCAD Parametric design Geometric constraints Dimensional Constraints Custom entities can participate Initially available in ObjectARX only

Parametric Drawing – Diagram 1 d1 = a + b 2D Constraint Group Dimension Dependency Variable d1 Value Dependency Variable a = 5 Variable b = 2

Parametric Drawing – Diagram 2 2D Constraint Group Geom Dependency Geom Dependency

Demo – Parametric Drawing Adding constraints to native AutoCAD entities Custom entity support for constraints

The Wine – Freeform modeling AutoCAD 3D isn’t just boxes New SubDMesh entity Uses Catmull-Clark algorithm Edge and surface creasing Conversion between ASM solid and SubDMesh and back Available in ObjectARX and .NET

What is SubD? A subdivision surface is a smooth surface created from a coarse mesh. The smooth surface is calculated by iteratively subdividing each polygonal face into smaller faces that better approximate the smooth surface. See http://en.wikipedia.org/wiki/Subdivision_surface

Demo – Freeform Modeling Basic SubDMesh operations Create from primitive Create from ASM solid Apply creases Transform mesh elements Convert to ASM solid

The Wine – Overrule Protocol Custom entity behavior without the custom entity Customize behavior for any entity Per class Per instance Data dependent Custom filters No more proxy warnings Available in ObjectARX and .NET

The Wine – Overrule Protocol Impact on custom objects Name changes to overridden functions Before: public virtual foo(…) After: protected virtual subFoo(…)

Overrule Protocol - AcDbObject PropertiesOverrule GetClassID ObjectOverrule DeepClone WblockClone No change for Open Close Cancel Erase

Overrule Protocol - AcDbEntity DrawableOverrule SetAttributes WorldDraw ViewportDraw ViewportDrawLogicalFlags PropertiesOverrule List OsnapOverrule GetObjectSnapPoints TransformOverrule TransformBy GetTransformedCopy Explode CloneMeForDragging HideMeForDragging GripOverrule GetGripPoints MoveGripPointsAt GetStretchPoints MoveStretchPointsAt OnGripStatusChanged

Overrule Protocol - AcDbEntity SubentityOverrule AddSubentPaths DeleteSubentPaths GetSubentPathsAtGsMarker GetGsMarkersAtSubentPaths GetGripPointsAtSubentPath MoveGripPointsAtSubentPaths SubentGripStatus SubentPtr TransformSubentPathsBy GetCompoundObjectTransform GetSubentPathGeomExtents GetSubentClassId HighlightOverrule Highlight Unhighlight GeometryOverrule GetGeomExtents IntersectWith

Demo – Overrule Protocol Draw Overrule Grip Overrule Extension Dictionary Filter

The Wine – CUI API and UI Update Changes to RibbonBar and Menu Browser Runtime API is significantly changed (AdRibbon.dll) RibbonBar now included in CUI API CUI Format has changed, now packaged into CUIx Ability to add custom Ribbon Controls Available in .NET Only

The Wine – Custom Ribbon Controls Easily add custom controls to RibbonBar Based on WPF Participate with CUI Editor Available in .NET only Registry Entry needed... HKLM\SOFTWARE\Autodesk\AutoCAD\R18.0\ACAD-8001:409\RibbonControls

Demo – Custom Ribbon Control Custom CUI Control WPF ResourceDictionary WPF BitmapImage RibbonSplitButton

The Wine … And the rest … .NET Developers Guide PDF Underlays ‘Selectable’ transient graphics …

Autodesk Developer Network Access to almost all Autodesk software and SDK’s Including early access to Beta software Members-only website with 1000s of technical articles Unlimited technical support Product direction through conferences Marketing benefits Exposure on autodesk.com Promotional opportunities 1 to 3 free API training classes Based on user level www.autodesk.com/joinadn

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