QISLIb_MT Revision History

This page contains notes on the release history and revisions made to QISLib_MT. QISLib_MT's initial release is "embedded" inside an application/library called clipextract. Clipextract also embeds QISBool and acsRasterLib in order to convert data extracted by QISLib_MT into useful output products such as GDSII and TIFF.


QisMLib 1.021 Linux 2/10/2019

Optimization Flag

Compiled QisMRaster with proper flags to improve speed.


QisMLib 1.02 package (full set) with QisMCorrX and QisMRstrCmp2Files 2/10/2019

New QISMCORRX - API/APP to apply multi-point corrections to GDSII/OASIS/DBLOAD data

New API/APP used in conjunction with QisMRaster to correct data to accommodate distortion of the substrate to be imaged.

Application: ${install}/artwork/qismcorrections64(.exe)
Extension: ${install}/artwork/qismcorrx64(.dll, .so)
Demo script: ${install}/examples/qismcorrx*demo*
Readme: ${install}/reference/qismcorrections.readme
API: ${install}/include/qismcorrx.h
Sample code: ${install}/samplecode/corrections.cpp


QISMRSTRCMP2FILES - APP to compare two GDSII/OASIS/DBLOAD files using rasterization

New API/APP to compare two GDSII/OASIS/DBLOAD files using rasterization (QisMRaster) and image compare (${install}/artwork/qismxor2files64).
This approach can be much faster than a standard boolean XOR between two sets of data (approach which requires flattening the data).

Application: ${install}/artwork/qismrstrcmp2files64(.exe)
Extension: ${install}/artwork/qismraster64(.dll, .so)
Demo script: ${install}/examples/rstrcompare*files*demo*
Readme: ${install}/reference/qismrstrcmp2files.readme


QISMClipextract v2.101, QISMLib/QISMRaster 1.011 10/30/2018

Software Update

This version fixes a problem which was introduced in the previous version which have resulted in incorrect raster images in situations where a polygon width/height/box is <= 1 pixel.


QISMClipextract v2.10 Windows/Linux 10/25/2018

Speed Improvement

Speed improvement was made in a marginal case where an extremely long polygon along Y (~1m long) passed a relatively small window (1000 x 1000um) and was being rasterized at a very fine resolution (0.02um/px). In a situation like this, the memory footprint of the rasterizer shot up significantly (multiplied by number of exploder threads) affecting the application performance. This has been fixed in the new revision.


QISMClipextract v2.09 Windows/Linux 2/20/2018

Visual Studio Sample Code

This release includes a sample Visual Studio solution for a customer to demonstrate the use of QisMLib and QisMClipExtract for extracting images.


QISMClipextract v2.08 Windows/Linux 1/23/2018

C++ Only version

QISMClipextract contains new structure of the install folders with more examples. No C# code in this release.


Clipextract v2.07 Windows 11/5/2017

Load Function Update

This version fixes a bug in the file load function which caused it to crash after the load function was called a certain number of times.


Clipextract v2.06 Windows 09/08/2017

Updated clipextract_cs.exe

In this new package, the sample C# program (clipextract_cs.exe) now supports the -lsynth option to generate clips of polygons using layer operations.


Clipextract v2.05 Windows 08/01/2017

Incorrect Clips due to Rounding Error

This version fixes a bug that caused rounding error when converting floating point values to integer resulting in output co-ordinate values such 69999 instead of 70000.

New Installation Folders and Examples

Upon installation, there will be a new folder called 'qismlib_cs Source' which contains the source code and a Visual Studio 2008 .NET project to build qismlib_cs.dll. When you build this project, it will make a copy of the new qislib_cs.dll and qismlib_cs.xml to the installation directory so that it is ready for use.

There will also be a new folder 'CS Sample' which contains the source code and VC# 2008 project to build a sample application that uses qismlib_cs.dll - When you build the project, a copy of clipextract_cs.exe will be created in the installation directory so that it is ready for use.

In 'Example Files', there is a new batch file 'extract-demo-cs.bat' which provides a sample run of this new C# based exe. To see all the command-line options of clipextract_cs.exe, Please run clipextract_cs.exe -h. Please be aware that there are some slight differences in the command-line syntax between clipextract64.exe and clipextract_cs.exe.




Clipextract v2.04 Windows 08/01/2017

New Features

Multiple file support in QisMLib. The software creates each instance of the file using IQisMLib.Load_file(..) and destroys it using IQisMLib.Unload_file(..)
New C# interface in form of qismlib_cs.dll - The documentation for the C# API can be found in VC# Object browser when qismlib_cs.dll is added as a reference.




Clipextract v1.001 Windows 09/06/2016

Initial Windows Release

We now have a Windows 64 version of clipextract (including, of course, the underlying libraries: QISLib_MT, QISBool, acsRasterFmt




Clipextract v1.00.1 Linux 08/31/2016

Bug Fix Parsing Window File on Command Line

Failed to read window files (@window:CWH:) where the first line was commented out (expecting width, height). Now, the very first valid line is read as width,height.




QISLIB v2.94.1 Linux64 08/23/2016

Initial Release on Linux

The QISLib_MT has been released as a part of a sample application called Clip Extract v1.00.

product IDs for licensing are:

    Clip Extract - 31209 (licenses all libraries at run time)








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