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What is C3D?

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  • 1. What is C3D?
  • 2. PurposeComputer-aided designComputer-aided engineeringComputer-aided manufacturing
  • 3. FunctionsGeometric model designs constrained by parametersGeometric constraint settings for model elementsCalculations of model element propertiesData exchange with other systems
  • 4. Geometric ModelingSolid modelingSurface modelingWire-frame modelingDirect modeling
  • 5. Hybrid Modeling
  • 6. Geometric Entities
  • 7. Build History and Attributes
  • 8. APIMethods for creating solidsMethods for creating sheet-metal solidsMethods for performing direct modelingMethods for creating surfacesMethods for creating curvesMethods for creating pointsMethods for modifying solids, surfaces, curves, points
  • 9. EquipmentNaming tools provide:uniquenesscomparabilityreproducibilityindependence of geometric characteristicssearchability of objects by nameDiagnostics: input parameters, operations, resultsParallel computations used for mass-inertia properties, solids triangulationOperations with precision controlMethods of copying objects provides fault tolerance for algorithms
  • 10. Geometric ConstraintsC3D kernel can apply geometric constraints on the elementsand parameters, and in this way some elements can be madedependent on others and on parameters.Geometric constraint functions:modifying geometric modelscreating assembliescreating similar modelsmodeling mechanisms
  • 11. Geometric Model
  • 12. Calculations and ConstructionModel face triangulation (meshing)Volume, mass center, inertia moments, and general axesCollision detection among elementsPlane projections, sections, thread linesDistances between elements
  • 13. Composition
  • 14. C3D Modeler
  • 15. Elementary Solids
  • 16. Swept Solids: extrusions, revolutions
  • 17. Swept Solids: lofts, sweeps with guide curves
  • 18. Boolean Operations
  • 19. Section Views
  • 20. Fillets and Chamfers
  • 21. Thin-walled Solids
  • 22. Symmetry, Drafts, Reinforcing Ribs,Holes, Scaling
  • 23. Sheet-metal Modeling
  • 24. Surface Modeling
  • 25. Surface Modeling
  • 26. Wire-frame Modeling: curves
  • 27. Wire-frame Modeling: curves
  • 28. Wire-frame Modeling: points
  • 29. Direct Modeling
  • 30. Geometric Calculations
  • 31. Triangulation (Meshing)
  • 32. Mass-inertia Properties
  • 33. Planar Projections
  • 34. C3D Solver
  • 35. Modeling with ConstraintsPrimary features of C3Ds constraint-basedmodeling:Relationships between geometric objectsnot subject to a strict orderDeclarative approach means there is noneed to plan model creation steps inadvanceGeometric constraints allow quickchanges to existing modelsModels can be parametric, with drivingdimensions assigned in a user-friendlymanner
  • 36. Solving Constraint Satisfaction
  • 37. Solver ApplicationsMechanical engineering, architectural CADParametric drawings, graphic editorsSketches that define 3D modelsPositioning parts in assembliesKinematic simulation
  • 38. Constraint-driven Parametric Drawings
  • 39. Constraint-driven Parametric drawings
  • 40. Assembly Modeling and Kinematic Simulation
  • 41. Evaluating Under-constrained Geometry and Degreeof Freedom Analysis
  • 42. C3D Solver APIEasy to embedSmall set of functions anddata typesMinimal dependence onother features of the kernelEasily and quicklyimplement test units
  • 43. 2D Solver Data TypesGeometry ConstraintsPointsLines, line segmentsCircles, arcsEllipsesSplinesParametric curvesCoincidenceIncidenceParallelismPerpendicularityAlign pointsTangencyDistanceAngleRadiusFix, freeze geometryFix length or directionEqual lengthsEqual radii
  • 44. 3D Solver Data TypesGeometry ConstraintsPoints (vertices)LinesPlanesCones/cylindersToriSpheresMarkersRigid bodiesCoincidenceCoaxialityParallelismPerpendicularityTangencyDistanceAngleFix geometryTransmissions
  • 45. Mechanical Transmissions
  • 46. Cam Mechanism
  • 47. C3D Converter
  • 48. C3D ConverterReads STEP, IGES, X_T, SATWrites STEP, IGES, X_T, SAT, STL, VRML
  • 49. Developer Toolkit
  • 50. Working EnvironmentC3D geometric kernel is multi-platformSupported platforms:32 bit Windows64 bit Windows64 bit LinuxC3D geometric kernel written in C++
  • 51. Package ComponentsC3D distributable package includes:Header filesLibrary files (c3d.dll and c3d.lib for Windows, libmath.so for Linux)Library files available for different environments and configurations:Windows/Linux, 32bit/64bit, ISO/Unicode, debug/releaseKernel documentation available as *.chm files in Russian and English.Test application included in the package with source files and compiledbinaries (test.exe for Windows)
  • 52. Test Application for Windows
  • 53. Test Application for Linux
  • 54. Road MapExtend direct modeling tool setExtend use of parallel computationsAdd import from STL and VRMLAdd native CAD data exchange (partner)New platforms supportUser requests welcome!
  • 55. Thank You!

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