SFGEN64 Revision History
This page summarizes changes, fixes and enhancements to the SFGEN64 program.
V2.29 (Linux/Windows) 12/06/2016GUI - Enhancement
Updated the main window to resize step or layer list sections of the dialog.Bug Fix - Crash due to License Fail
Fixed a bug that caused a program crash when licensing fails. This was the result of a buffer overflow.Command Line Syntax Check
Invalid command line arguments are now reportedError Status Fixed
A state problem when reporting errors was fixed. Previously, a successful run might be flagged as having had an error in the presence of a previous error.
V2.28 (Linux/Windows) 11/18/2016Arc Detection/Rebuilding in GDSCompact Mode
Added new functionality and a command line argument to implement it. Arc like boundaries can be detected and then can be rebuilt (primarily to use less vertices) in the output GDSII file. This can reduce the number of quads and slivers produced in the output.
The argument to trigger this routine is:
where the first value is the chord error tolerance used to detect arcs and the second value (normally larger than the first value) is to rebuild them.
The GUI has been updated to include this new control.Quad Size Limits
Maximum quad size for GDSCompact flow can now have different values for X and Y.
Orphan cells in output deleted
The compaction routines in GDSCompact flow would replace original cells in the hierarchy with more efficient merged ones. However previous versions were leaving the original cell definitions in the file even through they were no longer referenced. Those cell definitions are now deleted if not referenced.
V2.27 (Linux) 11/03/2016Clipping of Quadrilaterals to User Set Max
In the GDSCompact flow, the maximum length/width of a quadrilateral can be set by the user - any quads that would be larger than this value (either in X or in Y) are broken into smaller quads that do not exceed the max.Preserve Hierarchy Tree (GDSCompact)
A new check box, Preserve Tree (command line argument -nhmode3) has been added to the Settings Dialog under the GDSCompact flow. The hierarchy of the input file is preserved; polygons within each structure definition are unionized and can be (optionally) convexed and output as quadrilaterals.
If this check box is not selected, GDSCompact may modify the file hierarchy such that arrays and structure trees may be restructured according to the rules dictated by "Span Length" and "Vertex Count." (-nhmode2 on the command line).Bug Fix in Quadrilateral Output
A bug was fixed in the GDSCompact mode which resulted in "quadrilaterals" with more than 4 sides.Bug Fix in Convex Output
A bug was fixed in the GDSCompact flow in which convex data was misplaced outside the source polygon as a result of an optimization.Selection of Input File Structure
The main dialog box now allows a user to select any input file structure (STEP from the ODB++ terminology) by use of a directory style navigator. Prior to this the GUI only allowed users to select from top level structures. The command line syntax which specified the structure name directly did not have this limitation.
If the top structure is not selected and GDSCompact mode has preserve Tree checked, then GDSFILT is used to extract the data at the front end. (This is pretty much invisible to the user and does not require any new licensing.)
V2.26 10/25/2016New Data Flow - GDSCompact
A new data flow for LCDs has been implemented labeled GDSCompact. It does not produce a semi-flat file. It unionizes data on a cell by cell basis and can also convert the resulting boundaries into quads (the breaking of large quads that exceed the user specified maximum size has not been implemented in 2.26.
The command line arguments needed to use the GDSCompact flow are:
-gdscmponly turns on GDSCOMPACT flow -convex output polygons are to be fully convex -quad[:quadlen] output quadrilateral only optionally with maximum dimension quadlen (in um)
Annotation and Distortion correction are not available with the GDSCompact Flow.
The Advanced Dialog Box has been rebuilt to accommodate the new GDSCompact flow:
it does not yet support a check box for deactivation of hierarchical compaction so that must be entered manually.Batch File
a .bat file is created in the working directory as an aid for scripting *if* the "Keep Temp" check box is set in the Advanced Settings Dialog. This is a useful aid for those who wish to run SFGEN from a batch or script file.Hierarchical Compaction De-Activation
Hierarchical compaction can be deactivated (it is on by default) by passing "gdscomp -nhmode3" into the LCD Args text field in the Advanced Settings Dialog as shown above. In this case the hierarchy in the output is identical to that of the input, but all "flat" data in the structure definitions are unionized. If convex or quadrilateral output is requested (Convex and/or Quad check boxes are set) then this "flattened" polygon stream is handled accordingly. In the next revision of the GUI a suitable control for "-nhmode3" will be implemented.GDSCompact License Requirement
GDSCOMPACT can be invoked directly from the command line without the SFGEN front end but will require a license for the GDSCOMPACT product ID 2699; in the normal flow GDSCOMPACT is invoked with Artwork's internal softkey licensing by SFGEN.
V2.24 09/20/2016Progress Dialog
Modified progress dialog to better reflect progress. Does not reset for each additional layer processed. Now starts during opening of the file.-silent fix
Fixed "-silent" option which is used to prevent messaging dialogs from popping open. Prior to this version this argument was not being recognized on the command line.Relative Path Fix
When run from a batch/script relative paths were not correctly supported. This has been fixed.Additional Log Information
Modified the log file to include more information about ODB conversion.View Output - Fixed
Fixed view output function. Previously there was an issue in calling the GDSII viewer. Note that if multiple ODB layers were selected for processing, each ODB layer produces its own GDSII file, and only the file generated by the first layer is passed to the viewer.
V2.23 08/19/2016GUI Interface Change
The user interface which was previously MFC based, is now Qt based.Port to Linux
SFGEN has been ported to Linux (RHEL5 and later).
V2.22 07/15/2016Software Updates
Fixed the speed issue for a client where structures that are similar have too many different instances.
This can be controlled by specifying a jitter (1 is default) in the GUI or command line with the optional argument -jitter:value
V2.21 06/29/2016Software Updates
Fixed bug issue where no data is output if the GDSII input datatype is non-zero.
V2.20 06/24/2016Software Updates
Fixed bug issue where data is dropped. This is caused by layer polarity bug.
V2.19 06/21/2016Bad Syntax ODB++ File
Updated SFGEN to handle ODB++ input files with bad syntax. Customer file contained an empty line with attribute 0 which caused the program to crash.
V2.18 06/15/2016Sized Polygon Fix
Fixed an error that occurred when a sized down polygon with scratch becomes completely filled (reference: ATP-13-Single-Cell.GDS). This was caused by a bug when the data is rotated; some vertices overlapped which resulted in the program filling the polygon when sized.
Misaligned Data Fix
Fixed a bug where a section of data was output mis-aligned. This was caused by a bug in choosing the structures when there is a rotation.
Fixed Failure to Convert
Previous versions could not convert customer file. The cause was an illegally named symbol - the name string had a colon ":" in it which is a forbidden character. This has been addressed by detecting and dropping symbols with the colon and continuing to convert the balance of the data. WARNING - dropping such symbols may result in output not matched to the input data. It is not clear why a file with this type of symbol name would be generated - likely an error by the software that produced the ODB++ file.
Dropped Pads Fixed
Fixed a bug where pads are dropped. This was caused by a bug that occurred when handling insertion of more than 8190 pads of the same symbol. This is fixed by organizing the insertion array into groups when the insertion count exceeds 8190.
Conversion time to GDSII when correction is applied is reduced. reference: Sample_PXL.gds.
V2.17 03/01/2016Product License ID Updated
Updated Product ID: 427 (ODB++ input), 428 (GDSII input)Bug Fix
Fixed duplicate polygons issue of adjacent cells.
V2.16 11/11/2015Product Fixes
V2.15 10/11/2015Product Fixes
V2.14 9/21/2015Product Fixes
Fixed polarity issues.
V2.13 6/30/2015Product Fixes
Fixed rotated/mirrored child step issue.
V2.12 6/16/2015Product Fixes
The latest SFGEN will fixed odbfnt2shx module to handle wide characters.
V2.11 3/20/2015New Product Number
The latest SFGEN will require new key codes corresponding to product IDs 527 for ODB and 528 for GDS (LCD).Speed Improvements
Speed up in new hierarchy calculation.
V2.10 1/29/2015Program fix
Program crash on a customer file. The problem was related to the presence of a circular sliver in a surface. This has been corrected.
V2.09 12/4/2014Speed Improvements
Improved speed and addresses LGE's throughput issues
V2.07 07/29/2014Precision Issue fix
Precision issue in the hole detection within a surface caused the program to create the wrong output.
V2.05 04/29/2014New feature and bug fix
Random sizing for offset both or xyboth is implemented.
Fixed rip library that causes a crash when ripping very narrow data.
V2.04 04/7/2014Speed Improvement
Speedup in creation and comparison of instances have been implemented.
V2.03 03/17/2014Crash during conversion
Fixed a bug that causes some files with a large number of vertex count to crash during translation.
V2.02 03/14/2014Crash during conversion
There are no more crashes during translation of customer file.
V1.06 06/25/2013Modified Text Merge
Enhancements to Text MergeUpdate Correction Algorithms
Updated the correction algorithms to sync up with the ones implemented in RTCR.
V1.05a 06/15/2013Text Merge Added
Added support for text merge. (The strings and placements are defined in SFGEN but the actual text is not rendered until the file is processed by the RTCR.Fixed Scale and Rotation Resolution
Fixed a bug in the input argument parser that did not allow for very fine adjustment of scale factor and rotation angle.
V1.04 05/21/2013Initial Release
This is the initial release of SFGEN64. The annotation (text merge) function is not implemented.
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