
	LinkCAD		Support		Contact

Symbol Legend

= Enhancement

= Fixed

= Removed

= Note

Revision History

LinkCAD is frequently updated. The following revision history lists all changes for each new version:

Version 5.9.1 [Aug 25, 2010]

Improved backwards compatibility with Windows XP

Version 5.9.0 [Aug 09, 2010]

Raster Image Import: Added support for (uncompressed) TIFF images.

DXF Import: Added support for special characters in DXF 2009/10

Added new Network Lite license

DXF Import: Improved import of variable-width polylines

Improved compatibility with Windows 7, Vista, Server 2008

DXF Import: Fixed ELLIPSE entities with negative extrusion direction

Drill File Output: Fixed units specification

Version 5.8.2 [Nov 11, 2009]

Fixed DLL dependency error on Windows XP

Version 5.8.1 [Sep 29, 2009]

RS-274X Import: Fixed layer polarity command being applied to drawing command preceeding it

Version 5.8.0 [Sep 25, 2009]

Added further configurable attributes to layer mapping file

RS-274X Import: Fixed step and repeat offsets incorrect

RS-274X Import: Fixed draws using rectangluar aperture rendered as round ended

Version 5.7.2 [Feb 12, 2009]

DXF Import: Added support for AutoCAD 2007 SHAPE entities

DXF Import: Improved MTEXT alignment support

Fixed arc problems introduced in release 5.7.1

Version 5.7.1 [Jan 23, 2009]

RX-274X: Layers with entities deleted when importing Gerber files

Version 5.7.0 [Nov 04, 2008]

RS-274X Import: Added support for coordinates with explicit decimal point

RS-274X Import: Removed special handling of D99 aperture

RS-274D Import: Added support for Protel Autotrax aperture files

RS-274X Import: Fixed option "apply layer polarities" not working

CIF Import: Added support for very long CIF comments. (case 5446)

Tools: Improved reliability of polygon operations

Tools: Speed and reliability improvements

DXF Import: Fixed drawing of fractional arcs in SHX fonts

Fixed use of custom SHX fonts

Version 5.6.12 [Dec 13, 2007]

DXF Import: Fixed POLYLINE vertex points omitted when curve-fit tangent flag set (case 5429)

Version 5.6.11 [Dec 06, 2007]

License: Added non-transferrable file based host license

Tools: Added Text entities to "Convert to Outline" tool

Added option to specify arc resolutions in dots per inch (DPI)

Version 5.6.10 [Oct 05, 2007]

Tools: Enhanced boolean operations on files (case 5397)

Version 5.6.9 [Aug 08, 2007]

RS-274X Export: Performance improvements

Newly created layers no longer hidden

Viewer: Fixed display of concave polygons with more than 16k vertices (case 1691)

Version 5.6.8 [Aug 04, 2007]

PostScript Export: No longer exporting white layers as black (case 5326)

Added option to hide / show unused layers

Gerber RS-274X Import: Improved layer naming and removing temporary layers

CIF Import: Fixed crash when importing entity without defined layer (case 5347)

Tools: Fixed crash when performing boolean operations on files without selecting a file (case 5346)

Gerber RS-274X Import: Fixed step & repeat when importing multiple Gerber files

Version 5.6.7 [Jun 02, 2007]

IE3D Export: Added support for IE3D version 11 and 12

Tools: Improved tool to perform Boolean operations between files

GDSII, RS-274X Export: Reverted to winding rule when splitting polygons with holes (case 5311)

Tools: Fixed invalid line ends generated when flattening

Version 5.6.6 [May 15, 2007]

Tools: Added tool to perform boolean operations on files

Version 5.6.5 [May 03, 2007]

RS-274X Import: Fixed sporadic parsing errors after loading external aperture lists (case 5313)

Version 5.6.4 [Apr 06, 2007]

GDSII, RS-274X Export: Using even-odd rule when splitting polygons with holes (case 5311)

Version 5.6.3 [Mar 14, 2007]

RS-274X Import: Correct layer polarities when importing multiple files

GDSII Import: Fixed hidden layers when using data-types (case 5296)

Version 5.6.2 [Jan 12, 2007]

ACIS SAT & DXF Import: Improved handling of spline data in REGION entities (case 5277)

Version 5.6.1 [Dec 07, 2006]

CIF Import: Added support for CleWin 3.1 layer comments

Modla Export: Only exporting convex polygons

Modla Export: Added layer name after body type

Tools: Displaying layer color in layer selection dialogs

Unused layers are no longer hidden

CIF Export: Storing layer color when exporting to CleWin

Tools: Fixed layer selection tool incorrectly selecting pattern elements (case 5267, 5273)

GDSII Export: Datatype of text record was incorrectly set to layer number

Version 5.6.0 [Nov 09, 2006]

Added support for Windows Vista

Modla Export: Improved Modla support

Version 5.6.0 [Oct 31, 2006]

Storing last import and export folder separately (case 1717)

GDSII Export: Don't produce text output with overlapping polygons (case 1682)

IE3D Import: Added support for IE3D 11.1 (case 1732)

Conversion: Added option (under Tools > Options... > Conversion) to keep unresolved references (case 5227)

Fixed drawing bug in filled, round-ended polylines

Tools: Fixed potential endless loop while merging / using tools (case 1691)

Export: Fixed calculation of facets when exporting donuts (case 1714)

DXF Import: Fixed MTEXT rotation when negative extrusion vector used (case 1714)

DXF Import: Fixed potential self-intersections in variable-width polylines (case 1714, 1553)

Tools: Corrected problem when de-embedding polygons with sliced holes (case 1741)

GUI: Corrected nesting level display button

GUI: Corrected crash when using expired support license (case 5238)

Version 5.5.38 [Aug 09, 2006]

RS-274X Import: Allowing more digits than specified by coordinate format (case 1673)

Version 5.5.37 [Aug 01, 2006]

RS-274X Export: Export polygons with holes as sliced simple polygons (case 1635)

Tools: Added option to create holes as sliced simple polygons (case 1635)

Tools: Reduced memory consumption for Tools and improved speed

CIF Export: Limiting polygon size to 8192 vertices when exporting to CleWin

RS-274D Import: Added support for Epac aperture lists

GDSII Export: Added option to scale drawing by user-defined factor

Tools: Added tool to apply selection mask to pattern layer

Modla Export: Added MODLA file format to Simulation option

Tools: Up to six time faster merge & boolean operations (case 1459)

Fixed random crash in open file dialog caused by Adobe Acrobat 7 on Windows XP SP2

ACIS Import: Only creating one layer per layer z-value

GUI: Various layer list improvements

RS-274D Import: Fixed parsing of short external aperture lists

GDSII Import: Improved display of SREFs with absolute scaling/rotation (case 1497)

RS-274X Import: Fixed crash when parsing invalid aperture macro (case 1545)

GDS-TXT Export: Corrected TEXTTYPE record for TEXT entities

Text entities: Fixed positioning of centered text entities

Tools: Displaying newly created layers after layer operations

CIF Import: Added support for CleWin 3.x style layer comments

DXF Import: Fixed variable width polyline to outline conversion (case 1553)

RS-274X Import: Empty layers no longer shown in layer list

GDSII Export: Fixed potential gap when exporting donuts (case 1512)

Version 5.5.30 [Nov 30, 2005]

DXF Import: Improved import of closed variable-width polylines (case 1400)

DXF Import: Fixed potential problem when reading variable-width polylines (case 1400)

Tools: Fixed sporadic program crash when merging overlapping polygons (case 1400)

GDSII Import: Fixed bug introduced in LinkCAD version 5.5.19 where imported paths are always flat ended (GDSII type 0) (case 1486)

DXF Import: Fixed problem where Splines with rounding errors in knot vector were not imported correctly (case 1487)

Tools: Fixed problem when using boolean operations / conversion to outline on closed paths (case 1484)

Version 5.5.29 [Nov 28, 2005]

Fixed sporadic program error due to bug in Windows Service Pack 1 and 2 (case 1453, 1391, 1399, 1426, 1436, 1435, 1410, 1149)

Version 5.5.28 [Nov 18, 2005]

Tools: Added polygon de-embedding tool in batch mode

Version 5.5.27 [Nov 16, 2005]

Fixed dependency on MSVCP71.dll

Version 5.5.26 [Nov 09, 2005]

Licensing: fixed expiration warning when using network license (case 1470)

Version 5.5.24 [Nov 03, 2005]

GSD-TXT: Removed polygon vertex limitation (case 1444)

Tools: Fixed grayed out Next button after layer operations (case 1452)

DXF Import: Fixed mirroring of ellipses with negative extrusion factor (case 1462)

Version 5.5.23 [Jul 28, 2005]

Boolean operations: Fixed potential problems with re-entrant polygons (case 1378)

DXF Import: Fixed potential problem when reading variable-width polylines (case 1400)

Version 5.5.22 [Jul 08, 2005]

RS-274X Export: Fixed crash when exporting layer with name shorter than four letters (case 1387)

Version 5.5.21 [Jun 28, 2005]

Tools: Fixed potential problem in "Convert Quasi-Circles to Circles" tool

Version 5.5.20 [Jun 23, 2005]

GDSII Import: Allowing multiple XY records in boundary records (extends GDSII vertex limit beyond 8191 vertices)

Tools: Improved "subtract overlapping polygons" algorithm and renamed to "de-embed polygons"

Version 5.5.19 [May 23, 2005]

GDSII Export: Added option to default data type to layer number (case 1342)

Tools: Improved boolean operations on layers (case 1345)

Removed limit of 32768 vertices per polygon (case 1350)

GDSII Export: Fixed problem when splitting polygons containing holes (case 1348)

Version 5.5.18 [Apr 30, 2005]

DXF Import: Fixed potential problem when reading variable width polylines

GDSII Export: Fixed potential problem when splitting large polygons (case 1301)

Version 5.5.17 [Feb 26, 2005]

Tools: Fixed potential problem with boolean operations (case 1284)

Version 5.5.16 [Feb 23, 2005]

Tools: Major speed improvements to all boolean operations

Tools: Increased number of polygons per boolean operation to 4 million

Faster logging of error messages (case 1273)

Faster resolving of cell references (case 1273)

Fixed progress bar when reading files larger than 20 MBytes (case 1273)

Version 5.5.15 [Dec 24, 2004]

DXF Import: Improved handling of rounding errors in polylines (case 1248)

Edit: Improved entity selection

Version 5.5.14 [Nov 25, 2004]

RS-274X Import: Added multiple file import (case 0622)

CIF Import: Correctly reading old-style layer comments in CleWin generated files

Version 5.5.13 [Nov 09, 2004]

Fixed crash when Viewer license missing / expired (case 1221, 1222)

Command line: Fixed crash when hiding all dialogs and now main cell detected (case 1151)

Version 5.5.12 [Nov 06, 2004]

Command line: Fixed bug when automatically applying layer map (case 1205)

Version 5.5.11 [Nov 05, 2004]

Edit: Added "Clear" command to delete selected entities

Edit: Added lasso (identifying window) to select entities

Version 5.5.10 [Nov 04, 2004]

Fixed disabled Next button after upgrading

Command line: Top cell selected by LcSelectTopCell option correctly enabled (case 1205)

Command line: Layer map correctly applied after changing top cell (case 1205)

Version 5.5.9 [Nov 02, 2004]

Tools: Added layer property window in Viewer

Version 5.5.8 [Nov 01, 2004]

GDSII / CIF Export: Improved polygon splitting algorithm (case 0128)

Version 5.5.7 [Oct 24, 2004]

Tools: Added selection of top cell to batch and command line modes (see LcSelectTopCell option) (case 1205)

Tools: Added right-click command to create new layers

Version 5.5.6 [Oct 13, 2004]

Text entities: Fixed horizontal / vertical alignement (case 1206)

Version 5.5.5 [Oct 12, 2004]

Tools: Added layer map support to batch conversion and to command line modes (see LcApplyLayerMap option) (case 0588)

RS-274X Import: Fixed rotated outline-type aperture macros (case 1020)

Version 5.5.4 [Oct 03, 2004]

Tools: Added right-click commands to layer list (merge layers)

Version 5.5.3 [Sep 25, 2004]

Sonnet Export: Fixed location of nexted entities

Version 5.5.2 [Sep 27, 2004]

GDSII / GDS-TXT: Added data type support

Fixed default file extension when saving

Sonnet Export: Fixed direction y-coordinates

Version 5.5.1 [Sep 14, 2004]

Sonnet Export: Added Sonnet Project file support

Version 5.5.0 [Sep 03, 2004]

Edit: Added basic editing capabilities

DXF Import: Fixed support for AutoCAD 2004 REGION entities (case 1189)

Version 5.4.6 [Jul 30, 2004]

Quasi-circle to circle conversion tool: Removed quirement for convex polygons (case 1158)

Compass Layout Input: Fixed potential crash when reading invalid file (case 1165)

Version 5.4.5 [Jul 21, 2004]

RS-274X Import: Added support for Cadstar aperture lists (case 1143)

RS-274X Import: Fixed loading of external RS-274D aperture files (case 1146)

Version 5.4.4 [Jul 08, 2004]

PostScript Import: LinkCAD on Windows 95/98/Me produces error when reading PostScript file (case 1136)

Version 5.4.3 [Jul 07, 2004]

GDSII Import: Ingoring invalid flags set by buggy GDSII software (case 1134)

Version 5.4.2 [Jul 02, 2004]

Layer map: Allowing duplicate layer names after applying map (case 1123)

ACIS SAT Import: Fixed circular entities in SAT files (case 1102)

Version 5.4.1 [Jun 04, 2004]

ACIS SAT Import: Added experimental ACIS SAT import (case 1102)

Version 5.4.0 [May 26, 2004]

DXF Export: Added REGION entity support (case 0805)

Version 5.3.6 [May 25, 2004]

DXF Export: Added experimental REGION entity support (case 0805)

DXF Export: Last vertex of square-extended wires missing (case 1100)

Version 5.3.5 [May 21, 2004]

Raster Import: Added option to control merging of horizontally adjacent pixels (case 1094)

Fixed unable to change settings contained in group boxes with check box (case 1088)

Version 5.3.4 [Apr 26, 2004]

Command line / file: "LcSkipSteps" option allows disabling progress dialogs (case 1072)

RS-274X Import: Fixed potential crash (case 1069)

Version 5.3.3 [Apr 23, 2004]

Text: Added option to use square-ended strokes when drawing characters (Options Menu > Fonts) (case 1068)

Fixed compatibility with Windows 95 and NT4 (case 1067)

Version 5.3.2 [Apr 22, 2004]

Viewer: fixed "ghost" image displayed when rendering (case 1062)

Viewer: fixed cursor icons on non-Windows XP systems (case 1063)

Version 5.3.1 [Apr 15, 2004]

Viewer: Improved memory managment when displaying large concave polygons (case 1058)

Viewer / Tools: Improved speed when Viewer and Tools active at the same time (case 1059)

Version 5.3.0 [Apr 13, 2004]

Added raster image (bitmap) import (case 0741)

Fixed possible crash when closing drawing while rendering in progress (case 1051)

Version 5.2.8 [Mar 30, 2004]

IE3D Export: Added support for XML-based GEO format (IE3D 10.10) (case 1005)

Version 5.2.7 [Mar 23, 2004]

GDSII Import: Fixed handling of strings with invalid data-count (appended null-character) (case 1040)

Version 5.2.6 [Mar 19, 2004]

RS-274X Import: Added EIA / EBCDIC encoding support (case 1029)

RS-274X Import: Auto-detecting encoding and end-of-block / parameter delimiter characters

Fixed "component" label in layer map

Tools: Fixed possible endless loop in "Repair open polygons" tool (case 1026)

Version 5.2.5 [Mar 18, 2004]

Viewer: Fixed flashing in Viewer if fast fill mode enabled and drawing contains text (case 1024)

Version 5.2.4 [Mar 16, 2004]

Tools: Fixed possible endless loop in "Join adjacent wires" tool (case 1026)

DXF Import: Fixed import of elliptic curves in REGIONs (case 1027)

RS-274X Import: Fixed handling of layer polarity (case 1020)

Version 5.2.3 [Mar 15, 2004]

RS-274X Import: Added option to subtract clear-field layers from dark-field layers (case 1020)

RS-274X Import: Aperture macros are now placed on the correct layer

Version 5.2.2 [Mar 11, 2004]

IE3D Import: Added support for XML-based IE3D files (case 1005)

Tools: Added new tool to join adjacent wires (case 0919)

RS-274X Export: Fixed crash when layer name with less than four characters encountered (case 1016)

Version 5.2.1 [Mar 09, 2004]

RS-274X Import: Added support for aperture macros (AM) (case 0287)

RS-274X Import: Allowing multiple G/D/M-codes per block (case 1001)

IE3D Impot / Export: Added support for new units in IE3D version 10.05 (case 0970)

RS-274X Import: Correctly handles M02 (program end) command

DXF Import: Fixed text transformations (case 1002)

Version 5.2.0 [Mar 02, 2004]

Tools: Added "tools" commands to batch conversions (case 0691)

Version 5.1.24 [Feb 27, 2004]

Tools: Improved speed of wire-to-outline tool (also speeds up PostScript import) (case 0975)

Tools: Fixed bug in boolean operations on polygons (case 0972, 0974)

PostScript Import: Corrected handling of "closepath" operator (case 0967)

Version 5.1.23 [Feb 18, 2004]

DXF Import: Fixed ignored full circles / curves in REGIONs (case 0945)

Version 5.1.22 [Feb 16, 2004]

DXF Import: Ellipse curves in REGIONs result in invalid vertices (case 0945)

DXF Import: Fixed shifted UCS on entities with negative extrusion direction (case 0954)

Version 5.1.21 [Feb 11, 2004]

DXF Import: REGIONs entities shifted by constant offset (case 0941)

Fixed compatibility with Windows 2003 (Advanced) Server (case 0944)

Version 5.1.20 [Jan 20, 2004]

PostScript Export: Text rendered at wrong size (case 0903)

Version 5.1.19 [Jan 19, 2004]

DXF Import: Added support for elliptic / circular arcs in REGIONs (case 0859)

Version 5.1.18 [Jan 18, 2004]

Viewer: Improved behavior in the presence of integer overlows (case 0893)

Tools: Fixed bug in polygon operations (case 0895)

DXF Import: Fixed parallel line segments in variable-width polylines resulting in invalid vertices (case 0878)

Version 5.1.17 [Jan 17, 2004]

Exploded wires never create self-intersecting polygons (case 0883)

DXF Import: Fixed parallel line segments in variable-width polylines resulting in invalid vertices (case 0878)

DXF Import: Fixed self-intersecting polygons created from polylines with arcs (case 0892)

Tools: Fixed several bugs in polygon operations (case 0880, 0881, 0882, 0885)

Version 5.1.16 [Jan 08, 2004]

Fixed last path in font path list being ignored (case 0870)

Fixed text with formatting containing invalid "?" characters (case 0871)

DXF Import: Fixed rare bug in SPLINE to polygon conversion (case 0876)

Version 5.1.15 [Dec 23, 2003]

Tools: Added boolean operations on layers (case 0277)

DXF Import: Added support for polygonial REGION entities (case 0859)

Version 5.1.14 [Dec 23, 2003]

DXF Import / Export: Correctly decode / encode strings with escaped characters (case 0863)

Version 5.1.13 [Dec 16, 2003]

Fixed slow startup on some computers (case 0856)

Version 5.1.12 [Dec 11, 2003]

IE3D Import: Fixed comment line parameter in GEO 9.0 files (case 0252)

Version 5.1.11 [Dec 04, 2003]

Disabling viewer if OpenGL driver fails (case 0801)

Version 5.1.10 [Dec 04, 2003]

Tools: Fixed attachment when linking holes to outer polygon

Version 5.1.9 [Dec 03, 2003]

Tools: Up to 400 times faster polygon operations (merge, ...)

RS-274X Import: Accepting white space in Gerber files (case 0438)

Tools: Fixed crash when merging (case 0772)

Version 5.1.8 [Nov 28, 2003]

Fixed crash when changing top cell in cell tree (case 0835)

Cell tree: top cell icon not visible if not a root of cell tree (case 0836)

RS-274X Export: Step & Repeat option inverted (case 0824)

Tools: "Explode Child Cells" command deleted data when applied to an array reference (case 0823)

Version 5.1.7 [Nov 13, 2003]

Convert to Outline Tool: Treating donuts w/o hole as circles (case 0710)

PostScript Import: Fixed potential crash when importing PS files (case 0788)

RS-274X Import: Circular apertures no longer imported as donuts w/o hole but as circles (case 0710)

Version 5.1.6 [Oct 17, 2003]

RS-274X Import: Layer polarity parameters (LPC/LPD) put objects on clear / dark field layer (case 0237)

Tools: Added support for donuts to Convert to Outline tool (case 0710)

Version 5.1.5 [Oct 17, 2003]

Tools: Enabled experimental tool to perform XOR polygons (case 0277)

Tools: Enhanced "Explode to Outlines" tool and added option to explode circles

Tools: Improved stability of boolean polygon operations (case 0772)

Version 5.1.4 [Oct 14, 2003]

PostScript Import: Fixed possible crash when treating white areas as holes (case 0693)

Version 5.1.3 [Oct 07, 2003]

Viewer: Fixed crash when increasing window size during rendering (case 0742)

Batch conversion: allow skipping file selection dialog when running from command line (case 0735)

PostScript Export: Fixed page size not calculated correctly when running from command line (case 0734)

Version 5.1.2 [Sep 26, 2003]

RS-274X Import: Extended maximum number of coordinate decimal places to 7 digits (case 0680)

Font option changes take effect immediately (previously required exiting LinkCAD) (case 0677)

PostScript Import: Fixed filled holes in compound paths (eg. letter "O") (case 0717)

Fixed Invalid lines when rendering some characters (e.g. 'µ') in default SHX font (case 0723)

PostScript Import: Fixed arc precision settings ignored when using absolute units (case 0722)

Version 5.1.1 [Sep 25, 2003]

PostScript Import: Added support for binary DOS EPS files (case 0713)

Fixed error "The LINKCAD.EXE file is linked to missing export KERNEL32.DLL:GetFileSizeEx" (case 0676)

Version 5.1.0 [Aug 30, 2003]

PostScript Import: Improved import of PostScript files (case 0634)

RS-274X Export: Changed units selection command in Excellon drill files (case 0620)

Batch conversion: Fixed crash when reading invalid file (case 0639)

PostScript Import: Fixed ignored data in files containing binary data (case 0645)

PostScript Import: Fixed scaling errors when reading AutoCAD generated PostScript files (case 0646)

Adapting number of vertices of exploded NURBS / splines to enclosed angle (case 0647)

Version 5.0.9 [Aug 13, 2003]

Fixed potential crash when using batch mode (case 0619)

Version 5.0.8 [Aug 13, 2003]

All Exports: Fixed vertical shifting of text strings containing certain characters (case 0613)

All Exports: Fixed vertical alignement of text strings with attachment point at baseline (case 0613)

Version 5.0.7 [Aug 11, 2003]

RS-274X Export: Fixed wrong displacement when using circular interpolation (case 0612)

Version 5.0.6 [Aug 08, 2003]

PostScript Import: Added support for mirrored text (case 0611)

PostScript Import: Added option to ignore clipping path (case 0609)

Fixed TXT default font rendered at random size (case 0610)

Version 5.0.5 [Aug 07, 2003]

Fixed crash when using default font other than TXT (case 0607)

Fixed invalid lines when rendering SHX fonts

PostScript Import: PostScript font names no longer ignored (case 0608)

Version 5.0.4 [Jul 30, 2003]

RS-274X Import: allowing format code "N" for no zero omission in coordinates (case 0579)

RS-274X Export: Added support for exporting Excellon drill files (case 0596)

DXF Export: Trailing zeros of coordinates truncated when using 1 DXF unit = 1 nm (case 0583)

DXF Import: Invalid vertices generated for variable-width polylines containing arcs (case 0593)

RS-274X Export: Polygon filling not working when square aperture flashing enabled (case 0587)

Fixed crash when default font is not set to "TXT" (case 0582)

Fixed additional installed fonts being ignored (case 0581)

Viewer: fixed drawing errors when displaying empty file (case 0597)

Version 5.0.3 [Jul 15, 2003]

Tools: Improvements to "Merge overlapping polygons" command (case 0551)

Version 5.0.2 [Jul 15, 2003]

DXF Import: fixed rare bug when converting variable-width polylines (case 0555)

DXF Import: restored pre 4.9.8 algorithm for conversion of variable-width polylines (case 0434)

Version 5.0.1 [Jul 07, 2003]

Tools: Removed accidentially included beta version of "Subtract overlapping polygons" from tools menu

Version 5.0.0 [Jul 04, 2003]

Tools: Added "Merge overlapping polygons" command

DXF Export: improved text transformations (mirroring, rotation) for MTEXT entities (case 0489)

DXF Import: improved text transformations (mirroring, rotation) for MTEXT entities (case 0486)

Tools: added right-click menu to cell structure tree to flatten selected cell and sub-cells

User Interface: renamed "toggle outline" to "fill" (case 0499)

User Interface: moved items from "Tools" > "Modify..." directly under "Tools"

Viewer: object contours are also visible in filled drawing mode

Gerber / RS-274X Import: undefined apertures are treated as zero-width lines (case 0550)

Fixed wrong initial line segment for text entities

GDSII / GDS-TXT Export: removed DB units option (defaulting to 1nm) (case 0496)

Version 4.9.12 [Apr 17, 2003]

RS-274X Export: fixed number of digits exceeding maximum specified by coordinate format (case 0453)

Version 4.9.11 [Apr 15, 2003]

Speed improvements to polygon library.

Version 4.9.10 [Apr 08, 2003]

IE3D Import: fixed problems introduced by case 438 in version 4.9.9.4274 (case 0438)

Version 4.9.9 [Apr 07, 2003]

IE3D Import: fixed errors reported when IE3D file has been line-wrapped (case 0438)

Fixed large memory consumption during polygon operations. (case 0439)

Version 4.9.8 [Apr 04, 2003]

DXF Import: Improved polyline to outline conversion for segments shorter than line width (case 0434)

Version 4.9.7 [Mar 05, 2003]

DXF Import: fixed ignored Vertices of subclass "AcDb3dPolylineVertex" (case 0407)

DXF Import: fixed mirrored DONUTs being exploded to polywires (case 0408)

DXF Import: fixed Paper Space entities being wrongly added to Model Space (case 0409)

Version 4.9.6 [Feb 14, 2003]

Tools: Improved XOR tool (case 0372)

Version 4.9.5 [Feb 13, 2003]

Postscript Import: added partial clipping support. (case 0372)

Version 4.9.4 [Feb 06, 2003]

PostScript Import: improved conversion of curves (case 0372)

Version 4.9.3 [Jan 21, 2003]

DXF Export: fixed inverted option to export round-ended wires as flat/flat-extended. (case 0367)

Version 4.9.2 [Jan 17, 2003]

Export: fixed Text labels in wrong y-location (case 0362)

Version 4.9.1 [Dec 20, 2002]

New: added ANSYS ANF export option

Version 4.9.0 [Dec 10, 2002]

New: added PostScript import using pstoedit (case 0318)

Version 4.8.13 [Nov 27, 2002]

IE3D: the units of z-value column in the layer list now follows the selected IE3D export units. (case 0112)

IE3D export: added automatic sequential numbering of z-values (case 0284)

Version 4.8.12 [Nov 25, 2002]

DXF import: fixed missing endpoint in SPLINE to polyline conversion (case 0301)

RS-274X import: fixed invalid "Unclosed cell definition" when Step & Repeat encountered (case 0253)

RS-274X import: fixed ignored circular interpolation for full circles (case 0300)

Version 4.8.11 [Nov 21, 2002]

Re-added support for IE3D Version 9.0 (case 0252)

Fixed crash when invalid TEXT alignment flag encountered (case 0291)

Version 4.8.10 [Nov 18, 2002]

Fixed transformations of flattened boxes in CIF export (case 0283)

Added warning if export format does not support absolute scaling / rotation (case 0038)

Version 4.8.9 [Nov 17, 2002]

Fixed RS-274X Step & Repeat (case 0253)

Temporarely removed IE3D 9.0 export (needs futher work) (case 0252)

Version 4.8.8 [Nov 15, 2002]

Added dummy aperture for RS-274X polygon area fill command (G36) to work around bug in CG-Preview (case 0273)

Added RS-274X Step & Repeat support to Gerber input (case 0253)

Added RS-274X Step & Repeat support to Gerber output (case 0274)

Added support for IE3D Version 9.0 (case 0252)

Fixed CPU detection crash (case 0219)

Skipping aperture D51 when exporting to RS-274X (case 0137)

Fixed AutoCAD crash when opening layer editor on DXF 14/2000 file (case 0239)

Fixed disabled Copy & Paste in LinkCAD generated DXF 2000 files (case 0223)

Fixed crash in TLC import when referenced cell not found

Fixed invalid header record in generated TLC output

Fixed IE3D export of files containing array references (case 0074)

Version 4.8.7 [Oct 24, 2002]

Added option to set LASI user units in export (defaults to 100 uu/micron)

Scaling error in TLC import

Variable polyline width support in DXF import

Detection of RegMon & FileMon

Version 4.8.6 [Oct 16, 2002]

Rendering of filled concave polygons with high detail level (case 0238)

Version 4.8.5 [Oct 16, 2002]

Added support for Mentor Graphics ICLINK layer comments (case 0242)

Major Viewer speed improvements in hardware accelerated mode

Print white layers white in PostScript black & white export mode (case 0240)

Network license files with uppercase names not recognized (case 0241)

Removed redundant extensions on LASI files

Version 4.8.4 [Aug 25, 2002]

Missing column header icons in layer map

Version 4.8.3 [Aug 20, 2002]

Subnet based network licenses

Version 4.8.2 [Aug 15, 2002]

New: layer ordering (case 0017, 0051)

Improved: display of filled round-ended wires in Viewer

Round-ended wires are incorrectly displayed in Viewer outline mode (case 0227)

Viewer displays array elements of large arrays displaced (case 0228)

Polylines with only two vertices not displayed in Viewer (case 0231)

Repaired polylines may not display correctly in filled display mode (case 0232)

Crash when splash screen disabled & license expired (case 0233)

Crash when reading DXF file containing strings with back-slashes (case 0234)

DXF constant width polyline considered non-constant if start-width of final vertex non-constant (case 0235)

PostScript export correctly specifies page numbers

Version 4.8.1 [Jul 01, 2001]

Not released

Version 4.8.0 [Jun 20, 2002]

Protel aperture file support

Version 4.7.6 [Jun 14, 2002]

Easier column/row spacing specification extension to GDS-TXT AREF.

Display of small objects

Version 4.7.5 [Jun 13, 2002]

Backspace editing on layer names (case 0226)

Version 4.7.4 [Jun 04, 2002]

Improved drawing of large arrays (case 0225)

Version 4.7.3 [May 22, 2002]

Command file support (case 0224)

Version 4.7.2 [May 08, 2002]

Defaulting to detailed file view in file dialog boxes

Automatically adding loaded file's layer to empty layer map

Detection of accuracy loss in imported DXF files

Remembers last used layer map directory

Display of concave polygons

Crash when importing empty file

Version 4.7.1 [May 03, 2002]

Made color selectors single-clickable

Improvements to layer map editor

Crash when reading GDSII files with font type 3 records (case 0222)

Version 4.7.0 [May 02, 2002]

Layer map file support (case 0113, 0052)

Version 4.6.14 [Apr 25, 2002]

LinkCAD View speed improvements

CIF "94" text extension

Missing CIF cell name export

Crash when importing CIF text with more than 24 characters (case 0221)

Version 4.6.13 [Apr 15, 2002]

CPU detection crash (case 0219)

Version 4.6.12 [Apr 12, 2002]

Error message when importing Gerber files with polygon fills & arcs (case 0218)

Version 4.6.11 [Apr 12, 2002]

Modification to installation

Version 4.6.10 [Apr 11, 2002]

Speed of "Tools"

Spurious crashes after entering registration code (case 0207)

Only converting convex quasi-circles (case 0104, 0028)

Crash when converting convex quasi-circles (case 0104, 0028)

Workaround for compiler bug resulting in invalid exploded wires (case 0215)

Invalid TEXT record in GDS-TXT output (case 0216)

Version 4.6.9 [Apr 10, 2002]

Quasi-circle to real circle conversion tool (case 0104, 0028)

Version 4.6.8 [Apr 03, 2002]

IE3D & TLC export of exploded arcs & donuts (case 0214)

Version 4.6.7 [Apr 03, 2002]

GDS-TXT AREF export (case 0213)

GDS-TXT import of BGNSTR/BGNLIB when date/time is missing (case 0183)

Version 4.6.6 [Apr 02, 2002]

Read error for IE3D files with plain wave excitations (case 0210)

Licensing bug in GDS-TXT import (case 0211)

Version 4.6.5 [Mar 21, 2002]

Automatically creates valid cell & layer names for all formats (case 0103, 0203)

DXF handle warning in TurboCAD (case 0205)

Version 4.6.4 [Mar 21, 2002]

Added option to convert wires/paths to polygon outlines (case 0197)

Implemented workaround for crash after 30sec on Win95 (case 0201)

Color values in PostScript export (case 0200)

"zero-pad" option (always enabled) from GDSII export dialog

Version 4.6.3 [Mar 02, 2002]

Exporting of wires/paths to IE3D (case 0193)

Splitting of concave polygons (case 0128)

DXF import: fixed angle of wire ends (radial to arc center) (case 0195)

Version 4.6.2 [Feb 12, 2002]

Licensing issue on Windows 95

Version 4.6.1 [Feb 12, 2002]

AutoCAD 2000 DXF output support (case 0190)

Real-time panning when middle mouse button pressed (case 0191)

Made "zoom selection" command persistent (case 0144)

"bulb" button to layer list to turn all layers off/on (case 0144)

Mouse wheel zooming (case 0174)

Context menu to viewer (case 0144)

Version 4.6.0 [Jan 25, 2002]

Better "94" text support to CIF import (case 0189)

Version 4.5.5 [Jan 01, 2002]

Invalid BLOCK_RECORD entries when exporting flattened DXF R14 file (case 0187)

Version 4.5.4 [Dec 01, 2002]

Crash when importing empty DXF file (case 0184)

Made batch directory selection case insensitive (case 0185)

Array export to DXF Release 14 (case 0186)

Version 4.5.3 [Nov 01, 2002]

Batch export for Gerber and TLC (case 0180)

OpenGL display on NT 4 with software rendering (case 0181)

DXF mirroring of TRACE & LINE due to negative extrusion direction (case 0182)

CIF scaling/overflow log messages

Added circle support to L-Edit CIF export

Version 4.5.2 [Oct 01, 2002]

AutoCAD invalid handle error when writing polygons as SOLIDS (case 0175)

Removed invalid DXF underflow warnings (case 0176)

Error in 4.5.0 arc to polygon conversion (case 0178)

Version 4.5.1 [Sep 01, 2002]

Speed of SPLINE parsing

Crash when license expired (case 0177)

Version 4.5.0 [Sep 01, 2002]

Command to display array outlines only (case 0140)

DXF SPLINE support (case 0165)

Aperture size limit options for Gerber export (case 0171)

Tolerance specification for arc to polygon conversion (case 0148)

Help button to dialogs

Option to export monochrome PostScript files (case 0163)

Memory efficiency when reading large polygons.

Detecting arcs with non-constant radius

Control to limit display nesting level

Cancel button to viewer

RS-274X more tolerant with aperture definitions (case 0166)

International language support (case 0153)

Implemented workaround for drawing bug with accelerated ATI cards (case 0168)

Version 4.4.16 [Sep 01, 2002]

Keyboard problem on Window with Asian IMEs (case 0153)

Menu selection problem under Windows 9x/Me (case 0158, 0157)

DXF output for Word compatibility (case 0151)

Version 4.4.14 [Sep 01, 2002]

Added support for non-standard AREF transformations (case 0145)

Syntax error in GDS-TXT export (case 0146)

Error in Gerber export when exporting closely spaced

Formatting of aperture dimensions in RS-274X export (case 0142)

Version 4.4.13 [Sep 01, 2002]

Minor improvements for Gerber import

Version 4.4.12 [Sep 01, 2002]

Gerber import preview

Support for backward/upside-down TEXT in DXF (case 0134)

Stroke width of TEXT in GDSII output (case 0139)

Version 4.4.11 [Sep 01, 2002]

Donut problem (case 0136)

Version 4.4.10 [Sep 01, 2002]

Donut overlapping (case 0136)

Version 4.4.9 [Sep 01, 2002]

Polygon triangulation for DXF export (case 0132)

List box selection bug (case 0133)

Version 4.4.8 [Sep 01, 2002]

Lost license problem

Version 4.4.7 [Sep 01, 2002]

Automatic conversion of '(c)' sign to 'C' if missing in font (case 0130)

GDSII user units selection based on DXF grid snap (case 0129)

Version 4.4.6 [Aug 01, 2002]

Licensing problem

Version 4.4.5 [Jul 01, 2002]

Acceleration support for ATI Radeon graphics cards

Filtering invisible (space-only) strings when reading (case 0122)

ENDEL attribute for GDSII text export in split polygons (case 0124)

Toggle button behavior (case 0125)

Win98 out-of-memory error when exporting circles/donuts to

Version 4.4.4 [Jun 01, 2002]

Polygon to box conversion when writing CIF (case 0121)

Version 4.4.3 [May 17, 2001]

Import of Unigraphics generated DXF files (case 0120)

Version 4.4.2 [Apr 17, 2001]

Drawing bug on Matrox G200 accelerator (case 0082)

Menu bug (case 0108)

AutoCAD 12 bug (case 0109)

Version 4.4.1 [Apr 04, 2001]

Page scroll bug (case 0106)

Filled polygon drawing on Matrix G-series cards (case 0006)

Network license problem (case 0105)

Version 4.3.1 [Mar 01, 2001]

DXF BYLAYER/BYBLOCK support

Accelerator keys (case 0009)

DXF INSERTS with negative-z extrusion direction (case 0099)

Redisplay of broken polylines (case 0093)

Version 4.3.0 [Mar 01, 2001]

Text support (case 0071)

Scrollbar speed (case 0008)

DXF Release 14 export support

Binary DXF export support

Unable to disable top cell in viewer (case 0095)

Version 4.2.5 [Feb 28, 2001]

Crash in polygon repair tool for very large designs (case 0092)

Version 4.2.4 [Feb 25, 2001]

Logging

Version 4.2.3 [Feb 23, 2001]

DXF polygon filling using SOLIDs (case 0091)

Version 4.2.2 [Feb 18, 2001]

Allow fractional default line widths in Gerber export

Remove redundant coordiante data from Gerber file

Possibility to select any cell as top cell

The loaded file is displayed in LinkCAD's title bar (case 0090)

Support for DXF variable-width polylines (case 0067)

Trailing spaces in GDSII structure names are removed to avoid

Zooming to fullscreen after changing top cell (case 0054)

Zero-width straight lines could not be measured using the

Version 4.2.1 [Feb 02, 2001]

Memory allocation bug (case 0081)

Crash in Gerber export (case 0080)

Version 4.2.0 [Jan 30, 2001]

GDSII user units are now translated to DXF grid/snap and vice versa

Option to explode arrays

Conversion of arrays between GDSII and DXF

Network licenses for new features

Array support to TLC export

Wrong/missing display of "lasso", "rubber band" and object handles (case 0036)

Added active viewport table to DXF output (fixes problem with Volo View) (case 0059)

LinkCAD no longer crashes in out-of-memory situations (case 0015)

Crash when batch converting files containing errors (case 0026)

Incorrect bounding box calculation for wires (case 0037)

DXF import of rotated arrays with

Coordinates of transformed GDSII array references (AREF)

License transfer bug (case 0024)

Windows 98 machine lock-ups (case 0033)

Binary DXF input

CIF array output

Rotations in TLC import

Cell hierarchy calculation for TLC and LY import (case 0048)

Version 4.1.0 [Jan 19, 2001]

GDS-TXT input / output

Window placement bug (case 0010)

Menu bug where menus don't stay open after single click (case 0025)

A memory leak produced by OpenGL triangulation

NVIDIA Vanta redraw problem (case 0034)

Menus now stay open after a single-click (case 0025)

Placement bug on small 480 x 640 screens (case 0010)

Version 4.0.8 [Dec 22, 2002]

Greatly improved refresh speed (case 0018)

Trial licenses for new features (case 0014)

Option to extend CIF layer name length (case 0004)

Redraw problem when scrolling (case 0007)

Partial redraw of drawing with hardware accelleration (case 0016)

Version 4.0.7 [Dec 21, 2000]

License transfer bug (case 0003)

Exit on startup bug (case 0027)

Version 4.0.4 [Dec 11, 2000]

Support for DXF "REGIONS"

Simplified error messages in DXF import

Repaired, non-convex polygons would not display correctly

Mirroring problem for ARCs when extruded in z = -1 direction (!)

Changed default "BYLAYER" option

Error in menu command

Version 3.1.6 [Sep 29, 2000]

Fixed bulp selection bug

Version 3.1.5 [Sep 19, 2000]

Added LinkCAD View

Version 3.1.0 [Jul 31, 2000]

Fixed bug in CIF import (re-initialize)

Improved progress display in batch dialog

Fixed splash screen bug

Version 3.1.0 [Jul 26, 2000]

Fixed crash in batch processing.

Version 3.1.0 [Jul 21, 2000]

Fixed typo on registration

Version 3.1.0 [Jul 20, 2000]

Version 3.1.0 [May 16, 2000]

LinkCAD is now also available for Sun Solaris (2-5, 2-6, 7 and 8) and for Linux

Added batch processing

Option to split large GDSII and CIF polygons / wires

Added custom units for all import / export dialogs

Much faster polygon repairing

Added cancel button

Improved layer name & number validation

Fixed precision problems in GDSII input / output

Fixed TLC import / export

Various small changes and bug fixes-

Version 3.0.1 [Mar 13, 2000]

Improved stability when reading invalid GDSII files

Modified setup to resolve compatablity issues with Windows 95

Version 3.0.1 [Mar 11, 2000]

Improved WebUpdate

Improved setup

Fixed integer overflow bug in DXF output

Version 3.0.1 [Mar 10, 2000]

Added cell name validation

Improved WebUpdate

Version 3.0.1 [Mar 09, 2000]

LinkCAD 3-0-1 requires new registration keys

Improved text handling

Fixed Gerber polygon output

Fixed an installation problem preventing online-help from being displayed