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DATAKIT SDK
V2026.2
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DATAKIT SDK
V2026.2
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| Header Field | DATAKIT Class | Remarks |
|---|---|---|
FILE_SCHEMA.name | FileVersion of Dtk_Component + Dtk_MetaData with title "Header : Schema" | See remark (1) See Dtk_Component::GetFileVersion See Dtk_MetaData::GetTitle |
| FILE_DESCRIPTION.description | Dtk_MetaData on Dtk_Component with title "Header : Description" | See Dtk_MetaData::GetTitle |
| FILE_NAME.author | Dtk_MetaData on Dtk_Component with title "Header : Author" | See Dtk_MetaData::GetTitle |
| FILE_NAME.organization | Dtk_MetaData on Dtk_Component with title "Header : Organization" | See Dtk_MetaData::GetTitle |
| FILE_NAME.preprocessor_version | Dtk_MetaData on Dtk_Component with title "Header : Preprocessor Version" | See Dtk_MetaData::GetTitle |
| FILE_NAME.originating_system | Dtk_MetaData on Dtk_Component with title "Header : Originating System" | See Dtk_MetaData::GetTitle |
| FILE_NAME.authorization | Dtk_MetaData on Dtk_Component with title "Header : Authorization" | See Dtk_MetaData::GetTitle |
| FILE_NAME.time_stamp | Dtk_MetaData on Dtk_Component with title "Header : Time Stamp" | See Dtk_MetaData::GetTitle |
| FILE_NAME.name | Dtk_MetaData on Dtk_Component with title "Header : File Name" | See Dtk_MetaData::GetTitle |
| FILE_NAME.implementation_level | Dtk_MetaData on Dtk_Component with title "Header : Implementation Level" | See Dtk_MetaData::GetTitle |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| shape_definition_representation | Dtk_Component of type PrototypeComponentType | See Dtk_Component::ComponentType |
| shape_representation with axis_placement item(s) | Dtk_Node | Root Dtk_Node of the Dtk_Component |
| shape_representation with other cases of item(s) | One Dtk_Node per item | |
| property_definition_representation + shape_representation_with_parameters | Dtk_Component of type PrototypeComponentType + parameters as Dtk_MetaData | No geometry See Dtk_Component::ComponentType |
| field ID of product | Name of the Dtk_Component | if ID is not defined, field name is used Field priority can be changed using StepReader::SetComponentNameMode |
| next_assembly_usage_occurence | Dtk_Component of type InstanceComponentType | Also called NAUO |
| item_defined_transformation | Dtk_transfo | Position (matrix) |
| cartesian_transformation_operator | Dtk_transfo | Position (matrix) |
| applied_document_reference + document | Dtk_Component | External reference to another file |
| product_definition_relationship + product_definition_with_associated_documents + document_file | Dtk_Component of type InstanceComponentType | An alternate way with external reference, origin Smaragd (PDM) |
| additive_manufacturing_setup | Dtk_Component of type PrototypeComponentType + Attribute "DtkStep_PRODUCT_TYPE" of its Dtk_Info | AP242E2 |
| additive_manufacturing_setup_relationship : sub-types | Dtk_Component of type InstanceComponentType + Attribute "DtkStep_INSTANCE_TYPE" of its Dtk_Info | AP242E2 |
| The model split in several STEP files | Attribute "Step_ExternalReferences" in root Dtk_Component Dtk_Info | Values can be "MONOLITHIC" , "BASIC_REFERENCES" or "NESTED_REFERENCES" |
| The model has several roots or missing products | Attribute "Step_AddedItem" in root Dtk_Component Dtk_Info | Values can be "ORPHAN_GEOMETRIES" or "SEVERAL_ROOTS" |
| The geometry/topology doesn't belong to a product | Attribute "Step_AddedItem" in Dtk_Info of its Dtk_Node | Value is "ORPHAN_GEOMETRY" |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| manifold_solid_brep | Dtk_Body, 1 Dtk_Volume, 1 Dtk_Shell (closed) | See its closed_shell |
| brep_with_void | Dtk_Body, 1 Dtk_Volume, list of Dtk_Shell (closed) | One per closed_shell : outer and inner(s) |
| shell_based_surface_model | Dtk_Body, Dtk_Shell(s) (open or closed) | See open_shell or closed_shell |
| face_based_surface_model | Dtk_Body, 1 Dtk_Shell per face (open) | Faces are not connected |
| geometric_set | Dtk_Body, content see each type of item | Faces are not connected |
| closed_shell | Dtk_Shell (closed) | |
| oriented_closed_shell | Dtk_Shell (closed) | |
| open_shell | Dtk_Shell (open) | |
| connected_face_set | Dtk_Shell |
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| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| face_surface | Dtk_Face | |
| advanced_face | Dtk_Face | |
| face_bound | Dtk_Loop | Inner or outer |
| face_outer_bound | Dtk_Loop | Outer |
| edge_loop | List of Dtk_Edge in Dtk_Loop of the face_bound / face_outer_bound | |
| oriented_edge | Dtk_Coedge | |
| edge_curve | Dtk_Edge | |
| surface_curve | Dtk_Coedge | With only pcurve, no 3D curve |
| seam_edge | Dtk_Edge + 2 Dtk_Coedge | Both coedges on a same face |
| curve_bounded_surface | Dtk_Face | No connectivity is coded |
| composite_curve | Dtk_Loop | |
| composite_curve_on_surface | Dtk_Loop | |
| composite_curve_segment | Dtk_Edge + Dtk_Coedge |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| b_spline_surface and sub-types | Dtk_NurbsSurface | Sub-types can be : rational or not, with or without knots, uniform |
| bezier_surface | Dtk_NurbsSurface | |
| conical_surface | Dtk_ConicalSurface | |
| cylindrical_surface | Dtk_CylindricalSurface | |
| offset_surface | Dtk_OffsetSurface | |
| plane | Dtk_PlaneSurface | |
| spherical_surface | Dtk_SphericalSurface | |
| surface_of_revolution | Dtk_StandardRevolutionSurface or Dtk_RevolutionSurface | According to Dtk_API::IsReversedRevolutionActivated |
| surface_of_linear_extrusion | Dtk_LinearExtrusionSurface | |
| toroidal_surface | Dtk_ToroidalSurface | |
| rectangular_trimmed_surface | Same as its basis surface | Trimming added |
| surface_replica | Same as its basis surface | Moved after conversion |
| rectangular_composite_surface | Not processed |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| line | Dtk_Line | |
| circle | Dtk_Ellipse | As a circle (one radius) |
| ellipse | Dtk_Ellipse | |
| hyperbola | Dtk_Hyperbola | |
| parabola | Dtk_Parabola | |
| offset_curve_3d | Dtk_NurbsCurve | |
| b_spline_curve and sub-types | Dtk_NurbsCurve | Sub-types : rational or not, with or without knots, uniform |
| bezier_curve | Dtk_NurbsCurve | |
| trimmed_curve on a line | Dtk_Line with start-end point | Trimming added |
| trimmed_curve (other than line) | Same as its basis curve | Trimming added |
| curve_replica | Same as its basis curve | Moved after conversion |
| pcurve | Curve (see above) in a Dtk_Coedge | Specifies a curve as UV on a Face |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| geometric_set , geometric_curve_set | Dtk_Body, one Dtk_Lump per item | Set of curves or points |
| shape_definition_representation + property_definition named "CATIA Geometric Set" + shape_aspect + shape_representation with list of items | Dtk_Body, one Dtk_Lump per item | From STEP written by Catia ("geometric set" of Catia) |
| cartesian_point | Dtk_Point | |
| composite_curve | Dtk_Shell , open containing a Wire | The Wire contains one Dtk_Curve per segment |
| composite_curve_segment | Subtype of Dtk_Curve | According to the type of curve |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| faceted_brep_model | Dtk_mesh | AP203 and AP214 |
| face_surface : case of a triangle | A triangle in a Dtk_mesh_face | One Dtk_mesh_face gathers all triangles of same color |
| face_surface (not a triangle) | Dtk_mesh_face with one mockup | If not a triangle |
| face_bound + polyline | A polygon in the mockup of the Dtk_mesh_face | |
| cartesian_point | A vertex in the Dtk_mesh | |
| tessellated_shape_representation | Dtk_mesh | AP242 |
| tessellated_shape_representation_with_accuracy_parameters | Dtk_mesh + Tessellation parameters as attribute "Dtk_tesselation_[X]" in its Dtk_Info | AP242E2 [X] can be LinearTol, AngleTol, Ratio or MaxSize |
| tessellated_geometric_set | Fills the Dtk_mesh (general case) | AP242 |
| coordinates_list | The vertices of a Dtk_mesh | AP242 |
| tessellated_solid or tessellated_shell | Fills the Dtk_mesh (surfacic) | AP242 |
| tessellated_solid or tessellated_shell containing cubic_bezier_triangulated_face | Fills the Dtk_mesh (surfacic) + Attribute "DtkMesh_BZ3" in Dtk_Info | AP242E2 |
| triangulated_face , triangulated_surface_set | Dtk_mesh_face (surfacic : triangles only) | AP242 |
| complex_triangulated_face , complex_triangulated_surface_set | Dtk_mesh_face (surfacic : triangles, fans, strips) | AP242 |
| cubic_bezier_triangulated_face | Dtk_mesh_face (triangles) + Attribute "DtkMesh_BZ_[i]" in Dtk_Info | AP242E2 [i] from 0 to 9 (10 points of Bezier patch) |
| tessellated_edge , tessellated_connecting_edge | Dtk_mesh_face : boundary polylines on a face | AP242 |
| tessellated_wire | Fills the Dtk_mesh (wireframe) | AP242 |
| tessellated_curve_set | Dtk_mesh_face : Polyline | AP242 |
| tessellated_point_set , tessellated_vertex | Fills the Dtk_mesh (points) | AP242 |
| + repositioned_tessellated_item | Moves the Dtk_mesh to a position | AP242 |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| styled_item + presentation_style_assignment | Attachment of graphical attribute in Dtk_Info of a Dtk_Entity | |
| surface_style_usage | Attribute Color in Dtk_Info | Style data on face or shell or solid See Dtk_Info::GetColor |
| draughting_pre_defined_color | Attribute Color in Dtk_Info | Values can be black, white, red, green, blue, yellow, magenta or cyan |
| colour_rgb | Dtk_RGB | Color defined as R,G,B values |
| pre_defined_curve_font | Attribute CurveLineType in Dtk_Info | See Dtk_Info::GetCurveLineType |
| curve_style | Attribute Color, CurveLineType and CurveThicknessInMM in Dtk_Info | Gathers style data on free curve See Dtk_Info::GetColor and Dtk_Info::GetCurveLineType and Dtk_Info::GetCurveThicknessInMM |
| pre_defined_marker or marker_type | Attribute PointSymbolType in Dtk_Info | See Dtk_Info::GetPointSymbolType |
| point_style | Attribute Color, PointSymbolType and CurveThicknessInMM in Dtk_Info | Gathers style data on free point See Dtk_Info::GetColor and Dtk_Info::GetPointSymbolType and Dtk_Info::GetCurveThicknessInMM |
| presentation_layer_assignment | Attribute Layer in Dtk_Info | General case : defined with a number See Dtk_Info::GetLayer |
| presentation_layer_assignment | Attribute Layer in Dtk_Info + information in Dtk_LayerInfosSet | See Generalities about entity attributes on how to retrieve layer name based on its ID |
| invisibility | Attribute BlankedStatus in Dtk_Info | See Dtk_Info::GetBlankedStatus |
| surface_style_transparent , surface_style_rendering_with_properties | A() in Attribute Color of Dtk_Info | Recorded as A = 1 - transparency |
| context_dependent_over_riding_styled_item with only one level of instance | Graphical attributes on a Dtk_Component of type Instance | More than 1 level : not supported |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| v5_uuid_attribute | Attribute PersistentName in Dtk_Info and attribute Uuid in Dtk_Info | From AP242E4 See Dtk_Info::GetPersistentName() and Dtk_Info::GetUuid() Available for Dtk_Component, Dtk_Body, Dtk_Face, Dtk_Edge, Dtk_Vertex, Dtk_Fdt |
| STEP Entities (2) | DATAKIT Class | Remarks |
|---|---|---|
| product , field name | Dtk_MetaData on Dtk_Component with title "Nomenclature" | See Dtk_MetaData::GetTitle |
| product , field description | Dtk_MetaData on Dtk_Component with title "Description" | See Dtk_MetaData::GetTitle |
| product_definition , field definition | Dtk_MetaData on Dtk_Component with title "Definition" | |
| product_definition_with_associated_documents , field definition | 4 Dtk_MetaData on Dtk_Component with titles : "DtkStep_PRODUCT_DEF_DOCUMENT_ID", "DtkStep_PRODUCT_DEF_DOCUMENT_NAME", "DtkStep_PRODUCT_DEF_DOCUMENT_DESCRIPTION" and "DtkStep_PRODUCT_DEF_DOCUMENT_TYPE" | See Dtk_MetaData::GetTitle |
| product_definition_formation , field revision | Dtk_MetaData on Dtk_Component with title "Revision" | See Dtk_MetaData::GetTitle |
| product_definition_formation_with_specified_source , field source | Dtk_MetaData on Dtk_Component with title "Source". | Value can be "made" or "bought" See Dtk_MetaData::GetTitle Sub-type of product_definition_formation |
| product_definition_context , field life_cycle_stage | Dtk_MetaData on Dtk_Component with title "LifeCycleStage" | See Dtk_MetaData::GetTitle |
| global_unit_assigned_context : length_unit | ConceptionUnitScale of Dtk_Component | See Dtk_Component::GetConceptionUnitScale |
| global_unit_assigned_context : plane_angle_unit | Attribute Dtk_ConceptionAngleUnit in Dtk_Info of the Dtk_Component (radian) | |
| global_uncertainty_assigned_context , uncertainty_measure_with_unit (length) | Dtk_MetaData on Dtk_Component with title "Uncertainty" | Value is a real in MM |
| property_definition_representation + property_definition pointing on product_definition_shape | Attribute "PDR.name : PDR.representation.name : item.name" in Dtk_Info | Value : see below (Dtk_Val) |
| descriptive_representation_item | Dtk_Val of type DTK_VAL_TYPE_STRING | See Dtk_Val::GetValType |
| boolean_representation_item | Dtk_Val of type DTK_VAL_TYPE_INT | AP203E2 and later See Dtk_Val::GetValType |
| integer_representation_item | Dtk_Val of type DTK_VAL_TYPE_INT | AP203E2 and later See Dtk_Val::GetValType |
| real_representation_item | Dtk_Val of type DTK_VAL_TYPE_DOUBLE | AP203E2 and later See Dtk_Val::GetValType |
| value_representation_item (count_measure or numeric_measure) | Dtk_Val of type DTK_VAL_TYPE_INT or DTK_VAL_TYPE_DOUBLE | See Dtk_Val::GetValType |
| measure_representation_item and sub-types | Dtk_Val of type DTK_VAL_TYPE_STRING : "real unit" | E.g. "1000 mm3" Unit : mm, kg or s. Others are ignored See Dtk_Val::GetValType |
| one cartesian_point | Dtk_Val of type DTK_VAL_TYPE_PNT | See Dtk_Val::GetValType |
| one direction | Dtk_Val of type DTK_VAL_TYPE_DIR | See Dtk_Val::GetValType |
| coordinates_list | Several Dtk_Val of type DTK_VAL_TYPE_PNT | Names as " : 1", " : 2", etc See Dtk_Val::GetValType |
| make_from_usage_option | A Dtk_Node Virtual with Dtk_MetaData (for id and name) - Alone : attached to the Dtk_Component - With a shape_definition_representation (designating a body) : attached to a Dtk_Node Dtk_Body | |
| property_definition_representation + property_definition applied on a product | Dtk_MetaData on Dtk_Component | Controlled by configuration, see StepReader::SetModeProperty By default, title is "PDR.name : PDR.representation.name : item.name" If only PDR.name is defined, title is "PDR.Name" |
| property_definition_representation + property_definition associated to a shape_aspect associated to an item mapped to a Dtk_Body | Dtk_MetaData on Dtk_Body | Controlled by configuration, see StepReader::SetModeProperty |