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Changes

November, 2024: CAD VCL Multiplatform 16.0​

  • Enhanced library stability for smoother performance.
  • Optimized file loading speed.
  • Added export to DWG and DXF 2010, 2013, 2018.
  • Improved import and export of DWG and DXF formats, including:
    • better handling of MText objects.
  • Improved import of DWF, SVG, CGM, and HPGL formats.
  • Improved export to SVG and PLT formats. Improved export to PDF format, including:
    • an option to save PDF files in the CMYK color model;
    • layer preservation in PDF files.
  • Added support for SLDASM format.
  • Improved import of STEP, SLDPRT, X_T, X_B, IFC, and ACIS formats.
  • Improved export to STEP and ACIS formats.
  • Improved rendering quality for 3D formats.
  • Enhanced library stability when working with 3D formats.
  • Improved navigation in 3D view mode.
  • Added the ability to import and export 3D files while preserving their original units of measurement.
  • Added export of OBJ files to DWG and DXF.
  • Added the Grayscale view mode.
  • Improved G-code generation from DWG and DXF formats.
  • Improved compatibility with the Lazarus cross-platform development environment.
  • Added an example showing how to work with the XML API.
  • Fixed bugs.

January, 2024: CAD VCL Multiplatform 15.0.5​

  • Support for Embarcadero® RAD Studio 12 Athens.

September, 2021: CAD VCL Multiplatform 15.0​

  • Support for FireMonkey.
  • Support for Embarcadero® RAD Studio 11 Alexandria.
  • Replacement of Open Cascade Technology by our own 3D kernel:
    • Improved reading of the SAT, SLDPRT, X_T, X_B, OBJ, STL formats;
    • Support for the FSAT, SAB, SMT, IPT formats;
    • Added export to the SAT format;
    • Improved export of the STEP, DWG, DXF formats.
  • Improved import of DWG and DXF formats:
    • Improved support for МTexts and Texts;
    • Improved support for Hatches;
    • Improved display of SHX fonts;
    • Improved support for ACIS objects;
    • Improved support for Dimensions and Multileaders;
    • Improved reading of VPort and drawing extents.
  • Improved export of DWG and DXF formats:
    • Added saving of ACIS objects;
    • Improved saving of VPort.
  • Improved display of vector formats (DWF, HPGL, CGM, SVG).
  • Improved export of SVG format:
    • Improved export of texts and hatches.
  • Improved G-code generation from DWG and DXF files.
  • Bug fixes.

June, 2020: CAD VCL 14.1.1​

  • Support of Embarcadero® RAD Studio 10.4 Sydney.

January, 2020: CAD VCL 14.1​

  • Support of the X_T, X_B formats and the SLDPRT format;
  • Improved import of DWG and DXF files;
  • Improved import of DWF, CGM, SVG, HPGL files;
  • High-quality automatic regeneration of objects;
  • Improved G-code generation from DWG and DXF files;
  • Bug fixes.

December, 2018: CAD VCL 14.0.5​

  • Support of Embarcadero® RAD Studio 10.3 Rio.

September, 2018: CAD VCL 14.0​

  • Improved import and export of DWG and DXF files:
    • Support of annotative objects;
    • Added reading of hyperlinks for entities;
    • Improved Insert support;
    • Improved Clipping support;
    • Improved Texts and MTexts support;
    • Improved display of SHX fonts;
    • Improved loading of DXF files;
    • Added export to AutoCAD DWG 2010.
  • Improved display of 3D files:
    • Added a new mode of surface display: Hidden lines;
    • Added display of 3D model edges;
    • Improved reading of SAT files;
    • Improved reading of OBJ files;
    • Improved reading of STL files.
  • Improved export of HPGL files:
    • Added saving of lineweights.
  • Improved export of SVG files:
    • Added saving of texts.
  • Improved export of PDF files:
    • Added saving of fonts;
    • Added option for saving to raster PDF files;
  • Other improvements:
    • Added option for automatic regeneration;
    • Improved import of DWF, HPGL, CGM and SVG files;
    • Improved G-code generation from DWG and DXF files.
  • Bugs fixes

May, 2017: CAD VCL 12.0​

  • Support of Embarcadero® RAD Studio 10.2 Tokyo
  • Added import of AutoCAD® DWG 2018
  • Export via Windows Metafile improved
  • Export to G-code added

June, 2016: CAD VCL 11.2​

  • Support of Embarcadero® RAD Studio 10.1 Berlin

December, 2015: CAD VCL 11.0​

  • Support of Embarcadero® RAD Studio XE8, RAD Studio 10 Seattle
  • Added export to AutoCAD® DWG 2004
  • Improved reading of the IGES format
  • Support of Big SHX Fonts (for Asian characters)
  • Added import and export of the XClipFrame variable into DWG and DXF
  • Added export of the SPATIAL_FILTER object
  • Added the controlled and preset properties for the TsgDXFAttdef entity
  • The image fragment obtained from DWG and DXF files while converting to metafile has become more precise
  • Multiline text (Mtext) import improved
  • Improved color import in DWF
  • Checking whether the Ray and XLine entities are included into the box
  • Creation of the hyperlink for the Text and Attrib entities
  • Improved DWG and DXF import and export
  • Reading of DWG/DXF 3D surfaces.
  • Third-party applications EED of the imported drawing is retained

June, 2014: CAD VCL 10.0​

  • Support of Embarcadero® RAD Studio XE6
  • Increased drawings visualization speed (up to 10 times on big files)
  • increased AutoCAD DWG/DXF loading speed

October, 2013: CAD VCL​

  • The components CAD Import VCL and CAD Export VCL are combined into one complete library that is called CAD VCL. At the same time each component can be also used separately.
  • Support of Delphi XE4, XE5
  • The CADExport demo application is renamed to the AddEntities
  • Added the Getting Started demo with READY TO USE code examples
  • Added CAD Import VCL and CAD Export VCL modules table

CAD Import VCL component​

December, 2015​

  • The DXFExport.pas unit name was changed to CADExport.pas. You should change DXFExport to CADExport in the Uses section of your projects.

July, 2013​

  • The Tsg2DBoundaryList class changed ancestor from TList to the TsgListObject class.
  • The TsgCADCurvePolygon.BoundaryData property is the array property now.

June, 2012​

  • New classes:

    • TsgDXFObjectEntityColor (derived from TsgDXFObjectEntity). As a result, the following classes changed ancestor from TsgDXFObjectEntity to the TsgDXFObjectEntityColor class: TsgCADPolyPolygon, TsgDXFPenEntity, TsgDXFCustomVertex, TsgFlatEntity
    • TsgAcadTableCell (derived from TPersistent)
    • TsgAcadTableCellStyle (derived from TPersistent)
    • TsgCADRasterVariables (derived from TsgDXFObjectEntity)
    • TsgDXFAcadTableStyle (derived from TsgDXFPenTableItem)

  • New list classes:

    • TF2DPointList
    • TFPointList
    • TsgBaseList
    • TsgCollection
    • TsgDoubleList
    • TsgFloatList
    • TsgHashList
    • TsgInt64List
    • TsgIntegerList
    • TsgList
    • TsgPointerList
    • TsgSingleList
    • TsgUInt64Pairs

  • New TsgDXFEntity methods:

    • DeleteEntity
    • FindEntByName
    • FindEntByHandle
    • GetExtData
    • IndexOfEntity
    • IndexOfHandle
    • IndexOfName
    • InsertEntity
    • RemoveEntity
    • Clear
    • SetExtData

  • A new TsgDXFViewPort method GetBoundariesAsPoints

  • A new TsgCADImage method GetVisibleArea

  • A new TsgDXFSortEntsTable method SortEntities

  • Type of properties and procedure parameters that indicate list of items is changed from TList to TsgSingleList, TsgIntegerList or TFPointList (depending on type of objects that are stored in the list).

  • Type of the following properties is changed from TColor to TsgColorCAD:

    • TsgCADCurvePolygon.FillColor
    • TsgDXFDimension.DIMCLRD
    • TsgDXFDimension.DIMCLRE
    • TsgDXFDimension.DIMCLRT
    • TsgDXFTolerance.DimlineColor

  • Type of the following properties is changed from Single to Double:

    • TsgDXFLeader.ArrowSize
    • TsgDXFPolyline.EndWidth
    • TsgDXFPolyline.GlobalWidth
    • TsgDXFPolyline.StartWidth
    • TsgDXFVertex.EndWidth
    • TsgDXFVertex.StartWidth

  • The DeleteEntity method in the TsgDXFConverter class is renamed to RemoveEntity.

  • TsgCADGradientPolygon.GradientColor became an array property.

  • The declaration of the TsgDXFXRef.Name property includes a write specifier.

August, 2009​

  • The procedures TsgDXFText.GetSHXLines, TsgDXFText.GetSHXLinesEx, GetSHXText, DrawSHXText, GetSHXTextFromStyle, GetSHXTextBox, DrawSHXTextBox, GetSHXTextBoxFromStyle receive one more parameter CodePage: Integer. It is recommended to transmit codepage value from file (Converter.CodePage) into this parameter.

  • The type of the text parameter is changed in the procedures: GetSHXText, DrawSHXText, GetSHXTextFromStyle, GetSHXTextBox, DrawSHXTextBox, GetSHXTextBoxFromStyle. The new type is sgRawByteString.

  • TsgDXFConvertor.HeadVarStruct is used to receive values of header-variables;

  • TsgDXFGroup.DeleteEntity(AEntity: TsgDXFEntity; DoFree: Boolean) allows to remove an entity from group.

  • The properties LineType: TsgDXFLineType, Block: TsgDXFBlock, Layer: TsgDXFLayer, Style: TsgDXFStyle, DimStyle: TsgDXFDimensionStyle in TsgDXFEntity and descendant classes can be set only to values from corresponding sections of TsgDXFConverter, except if other indicated. There are corresponding functions for search by name:

    • The object won't be created if doesn't exist

      • TsgDXFTable.FindEntByName(const AName: string)
      • TsgDXFConverter.LTypeByName(const AName: string)
      • TsgDXFConverter.BlockByName(const AName: string)

    • The object will be created if doesn't exist

      • TsgDXFConverter.LayerByName(const AName: string)
      • TsgDXFConverter.DimensionStyleByName(const AName: string)
      • TsgDXFConverter.StyleByName(const AName: string)

  • A new procedure TsgDXFEntity.Clone(const Source: TsgDXFEntity)

  • A new properties added into TsgDXFDimensionStyle, TsgDXFDimension, TsgHeadVarStruct

  • A new definition of TFMatrix record.

  • A new class TsgCADBasePolyline.

  • Following classes changed ancestors:

    • TsgDXFPolyline = class(TsgCADBasePolyline)
    • TsgDXFCircle = class(TsgCADBasePolyline)
    • TsgDXFSpline = class(TsgCADBasePolyline)
    • TsgDXFImageEnt = class(TsgCADWipeout)
    • TsgDXFAcadTable = class(TsgDXFInsert)

  • It is necessary to call Loaded after initialization when TsgDXFLineType is used.

  • If TsgLines used out of the TsgDXFLineType calling Loaded after initialization is necessary. Otherwise TsgLines object created, loaded and deleted automatically.

  • TsgDXFEntity.SrcStart, TsgDXFEntity.SrcEnd became obsolete and will be removed in the future versions.

  • TsgDXFMText.RectHeight became obsolete. We recommend to use TsgDXFMText.LineSpacingFactor instead of it.

  • TsgDXFAcadTable has only properties from ancestor, rotation angle ignored.

  • Type of properties MSpaceHeight, PSpaceHeight, PSpaceWidth changed to double.

  • New class TsgCADdxfImage for DXF files opening.

  • TsgDXFImage renamed to TsgCADImage. Now it's a base class for all CAD formats and for redraw. It is necessary to create class that corresponds format to import this format.

  • TsgDXFImageClass renamed to TsgCADImageClass

  • DWGPreview renamed to CADPreview

  • Constants sImpossiblePointerID, sFilledArrowForLeader, sNewBlockID deleted.

  • TsgCADImage.Is3D is removed. Use TsgCADImage.Converter.Is3D if necessary.

  • TsgCADImage.Converter.Is3D now is read only. It is obsolete and will be removed in the future versions.

  • TsgDXFText.Scale became obsolete. Use TsgDXFText.XScale instead of it.

  • The following properties and methods removed:

    • TsgDXFconverter.HeadVar()
    • TsgCADImage.HeadVarAsInteger()
    • TsgCADImage.HeadVarAsFloat()
    • TsgCADImage.HeadVarAsstring()
    • TsgDXFConverter.ImageDefCount
    • TsgDXFBlock.SoftPointerID

February, 2007​

  • The TsgImage component became obsolete. We recommend to use TsgDrawingNavigator component.
  • The TsgDXFLine.Thickness, TsgDXFPenLine.Thickness, and TsgFlatPoly.Width properties have been removed and replaced by the property TsgDXFEntity.LineWeight
  • The TsgCADEntityProc = procedure(Entity: TsgDXFEntity) of object type has been changed to TsgCADEntityProc = function(Entity: TsgDXFEntity): Integer of object
  • The TsgDXFLayout.Iterate(AConverter: TsgDXFConverter; Proc: TsgCADEntityProc) procedure has been changed to TsgDXFLayout.Iterate(AConverter: TsgDXFConverter; Proc, FinishProc: TsgCADEntityProc)
  • The TsgDXFConverter.Iterate(Proc: TsgCADEntityProc; var Params: TsgCADIterate) procedure has been changed to TsgDXFConverter.Iterate(Proc, FinishProc: TsgCADEntityProc; var Params: TsgCADIterate)
  • The TsgDXFPoint class is a descendant of TsgDXFCustomVertex (previously it was a descendant of the TsgDXFLine class)
  • The type of TsgDXFConverter.PaperSpace property has been changed to Boolean.
  • The TsgDXFConverter.Iterate property became obsolete. We recommend to use the following way instead of it: Converter.Layouts[I].Iterate (I=0..Converter.LayoutsCount-1)
  • The TsgDXFEntity.PaperSpace property became obsolete. We do not recommend to use it
  • The TsgDXFConverter.OnCreate property became obsolete. Since now there is no need to call Converter.OnCreate(Entity) when creating new entity.
  • The TsgDXFEntity.OnDraw became obsolete. We do not recommend to use it.
  • The following properties and methods have been removed:
    • TsgDXFConverter:
      • OnInsert
      • OnViewPort
    • TsgCADHatch:
      • PttBaseP
      • PttLineAngle
      • PttNumLines
      • PttOffset
    • TsgDXFInsert:
      • Enters
    • TsgDXFLayout:
      • CreateEx
      • PaperSpaceHandle
    • TsgHatchPatternData - field DashLen (multiple entries)

May, 2006​

  • The following type have been removed: TsgHatchType, PsgHElem, TsgHElem.
  • The following classes have been added:
    • Tsg2DCurve = class
    • Tsg2DArc = class(Tsg2DCurve)
    • Tsg2DEllipse = class(Tsg2DArc)
    • Tsg2DLine = class(Tsg2DCurve)
    • Tsg2DPolyline = class(Tsg2DCurve)
    • Tsg2DSpline = class(Tsg2DCurve)
  • the TsgDXFHatch class was replaced by the TsgCADHatch class.
  • TsgDXFHatch.Polylines was replaced by TsgCadHatch.Boundaries (this property is inherited from the TsgCADPolyPolygon class).
  • The mentioned above descendants of the Tsg2DCurve class are necessary for using instead of deleted PsgHElem (in TsgCADCurvePolygon.BoundaryData).

April, 2006​

  • The FPointFromDXF function renamed to MakeFPointFromDXF

December, 2005​

  • The software supports AutoCAD SHX fonts. The Viewer demo shows how to work with SHX font paths.

  • CAD Import VCL 5.0 includes Scalable Vector Graphics (SVG) and Computer Graphics Metafile (CGM) support. You can easy include these formats to existing applications which use CAD Import VCL because TsgSVGImage and TsgCGMImage are the TsgDXFImage descendants. There are some obsolete functions in the sgConsts module, we do not suggest for using.

  • Instead of FloatPoint(X, Y: Extended): TFPoint and FltPoint3D(X, Y, Z: Extended): TFPoint use the MakeFPoint(X, Y, Z: TsgFloat): TFPoint function

  • Instead of FloatRect(ALeft, ATop, ARight, ABottom: Extended): TFRect use the MakeFRect(Left, Top, Z1, Right, Bottom, Z2: TsgFloat): TFRect function

CAD Export VCL component​

July, 2013​

  • New export class: TsgCADtoDWG;

  • TsgCADtoDXF class changed ancestor from TsgCADExport to TsgCADDirectExport class;

  • The following properties are obsolete:

    • TsgCADtoDXF.Version

    • TsgCADtoDXF.XDataAppName

  • The following methods are obsolete:

    • The SaveToStream method in the following classes: TsgCADtoCGM, TsgCADtoDXF, TsgCADtoSVG, TsgCADtoSWF, TsgHPGLExport, TsgPDFExport

    • TsgCADtoDXF.ApplyParams

    • TsgPDFExport.SetPageSize

September, 2009​

  • New export classes: TsgCADExport, TsgCADtoBIN, TsgCADtoCGM, TsgCADtoSVG, TsgCADtoSWF, TsgHPGLExport, TsgPDFExport

  • New TsgCADImage class, entities classes.

March, 2006​

  • The TdxfPoint type has been replaced by TexpPoint to increase an accuracy.