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Geometric Constraint Solving
Geometric constraint solving is constraint satisfaction in a computational geometry setting, which has primary applications in computer aided design. A problem to be solved consists of a given set of geometric elements and a description of geometric constraints between the elements, which could be non-parametric (tangency, horizontality, coaxiality, etc) or parametric (like distance, angle, radius). The goal is to find the positions of geometric elements in 2D or 3D space that satisfy the given constraints, which is done by dedicated software components called geometric constraint solvers. Geometric constraint solving became an integral part of CAD systems in the 80s, when Pro/Engineer first introduced a novel concept of feature-based parametric modeling concept. There are additional problems of geometric constraint solving that are related to sets of geometric elements and constraints: dynamic moving of given elements keeping all constraints satisfied, detection of over- and under ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Constraint Satisfaction
In artificial intelligence and operations research, constraint satisfaction is the process of finding a solution through a set of constraints that impose conditions that the variables must satisfy. A solution is therefore a set of values for the variables that satisfies all constraints—that is, a point in the feasible region. The techniques used in constraint satisfaction depend on the kind of constraints being considered. Often used are constraints on a finite domain, to the point that constraint satisfaction problems are typically identified with problems based on constraints on a finite domain. Such problems are usually solved via search, in particular a form of backtracking or local search. Constraint propagation are other methods used on such problems; most of them are incomplete in general, that is, they may solve the problem or prove it unsatisfiable, but not always. Constraint propagation methods are also used in conjunction with search to make a given problem si ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
PTC Creo
Creo is a family of Computer-aided design (CAD) apps supporting product design for discrete manufacturers and is developed by PTC. The suite consists of apps, each delivering a distinct set of capabilities for a user role within product development. Creo runs on Microsoft Windows and provides apps for 3D CAD parametric feature solid modeling, 3D direct modeling, 2D orthographic views, Finite Element Analysis and simulation, schematic design, technical illustrations, and viewing and visualization. Creo can also be paired with Mastercam (Machining based software) to machine any designed model in a minimal timeframe. Software and features Creo Elements and Creo Parametric compete directly with CATIA, Siemens NX/Solid Edge, and SolidWorks. The Creo suite of apps replace and supersede PTC’s products formerly known as Pro/ENGINEER, CoCreate, and ProductView. Creo has many different software package solutions and featuresCreo Illustrateis a good example. Creo Parametric allo ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SolveSpace
SolveSpace is a free and open-source 2D/ 3D constraint-based parametric computer-aided design (CAD) software that supports basic 2D and 3D constructive solid geometry modeling. It is a constraint-based parametric modeler with simple mechanical simulation capabilities. Version 2.1 and onward runs on Windows, Linux and macOS. The Linux version is shipped as a snap and native packages. It supports STEP and DFX for import and export. By default, SolveSpace utilizes its own CAD file format called for model storage. It is possible to export models as a whole or in part to various formats such as PDF, SVG, or Encapsulated PostScript (EPS). It was initially created by Jonathan Westhues and as of 2022 is maintained by a community of volunteers. History Development of SolveSpace started in 2008. A previous software package called SketchFlat, also developed by Westhues, was replaced by SolveSpace. According to an interview given in 2020 by a major maintainer SolveSpace aims to be b ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Python (programming Language)
Python is a high-level, general-purpose programming language. Its design philosophy emphasizes code readability with the use of significant indentation. Python is dynamically-typed and garbage-collected. It supports multiple programming paradigms, including structured (particularly procedural), object-oriented and functional programming. It is often described as a "batteries included" language due to its comprehensive standard library. Guido van Rossum began working on Python in the late 1980s as a successor to the ABC programming language and first released it in 1991 as Python 0.9.0. Python 2.0 was released in 2000 and introduced new features such as list comprehensions, cycle-detecting garbage collection, reference counting, and Unicode support. Python 3.0, released in 2008, was a major revision that is not completely backward-compatible with earlier versions. Python 2 was discontinued with version 2.7.18 in 2020. Python consistently ranks as ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
GNU Public License
The GNU General Public License (GNU GPL or simply GPL) is a series of widely used free software licenses that guarantee end users the four freedoms to run, study, share, and modify the software. The license was the first copyleft for general use and was originally written by the founder of the Free Software Foundation (FSF), Richard Stallman, for the GNU Project. The license grants the recipients of a computer program the rights of the Free Software Definition. These GPL series are all copyleft licenses, which means that any derivative work must be distributed under the same or equivalent license terms. It is more restrictive than the Lesser General Public License and even further distinct from the more widely used permissive software licenses BSD, MIT, and Apache. Historically, the GPL license family has been one of the most popular software licenses in the free and open-source software domain. Prominent free software programs licensed under the GPL include the Linux kernel a ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
C3D Toolkit
C3D Toolkit is a geometric modeling kernel, geometric modeling kit originally developed by ASCON , ASCON Group, now by C3D Labs, using C++ and written in Microsoft Visual Studio, Visual Studio. C3D Toolkit responsible for constructing and editing geometric models. It can be licensed by other companies for use in their 3D computer graphics software products. The most widely known software in which C3D Toolkit is typically used are computer aided design (CAD), computer-aided manufacturing (CAM), and computer-aided engineering (CAE) systems. As the software development tool, C3D Toolkit performs 3D modeling, Constraint (computer-aided design), 3D constraint solving, Polygonal modeling, polygonal mesh-to-Boundary representation, B-rep conversion, Visualization (computer graphics), 3D visualization, and Data conversion, 3D file conversions. It incorporates five modules: * C3D Modeler constructs geometric models, generates flat projections of models, performs triangulations, calculates ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
BricsCAD
BricsCAD is a software application for computer-aided design (CAD), developed by Bricsys nv. The company was founded in 2002 by Erik de Keyser, a longtime CAD entrepreneur. In 2011 Bricsys acquired the intellectual property rights from LedasRalph GrabowskiExclusive Q&A: What it means, now that Bricsys bought IP from Ledas WorldCAD Access, October 5, 2011. for constraints-based parametric design tools, permitting the development of applications in the areas of direct modeling and assembly design. Bricsys is headquartered in Ghent, Belgium, and has additional development centers in Nizhny Novgorod and Novosibirsk, Russia; Bucharest, Romania and Singapore. Bricsys is a founding member of the Open Design Alliance, and joined the BuildingSMART International consortium in December 2016. In 2018, Bricsys nv was acquired in full by Hexagon AB of Sweden. The BricsCAD Editions Today, BricsCAD is available for the Windows, Linux and macOS operating systems, and comes in five, workflow-cen ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cimatron
Cimatron is an Israeli software company that produces CAD/CAM software for manufacturing, toolmaking and CNC programming applications. The company was listed on the Nasdaq exchange under the symbol CIMT, until its 2014 acquisition by 3D Systems. Prior to this, the company's major shareholder was DBSI, whose co-managing partner, Yossi Ben-Shalom, chaired the Cimatron board. Headquartered in Tel Aviv, the company had subsidiaries in the United States, Germany, Italy, China, South Korea, India and Brazil, as well as resellers in over 40 countries. Its main software products, CimatronE and GibbsCAM, continue to be used in over 40,000 installations worldwide. Its clients are largely from the automotive, aerospace, consumer electronics, toys, medical, optics and telecom industries. One of the company's major clients is China's Haier Mould, a subsidiary of the Haier Group. History The company was founded in 1982 as MicroCAD, releasing its first software products Multicadd and Multicam ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
SolidWorks
SolidWorks is a solid modeling computer-aided design (CAD) and computer-aided engineering (CAE) application published by Dassault Systèmes. According to the publisher, over two million engineers and designers at more than 165,000 companies were using SolidWorks as of 2013. According to the company, fiscal year 2011–12 revenue for SolidWorks totaled $483 million. History SolidWorks Corporation was founded in December 1993 by Massachusetts Institute of Technology graduate Jon Hirschtick. Hirschtick used $1 million he had made while a member of the MIT Blackjack Team to set up the company. Initially based in Waltham, Massachusetts, United States, Hirschtick recruited a team of engineers with the goal of building 3D CAD software that was easy-to-use, affordable, and available on the Windows desktop. Operating later from Concord, Massachusetts, SolidWorks released its first product ''SolidWorks 95'', in November 1995. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Computational Geometry
Computational geometry is a branch of computer science devoted to the study of algorithms which can be stated in terms of geometry. Some purely geometrical problems arise out of the study of computational geometric algorithms, and such problems are also considered to be part of computational geometry. While modern computational geometry is a recent development, it is one of the oldest fields of computing with a history stretching back to antiquity. Analysis of algorithms, Computational complexity is central to computational geometry, with great practical significance if algorithms are used on very large datasets containing tens or hundreds of millions of points. For such sets, the difference between O(''n''2) and O(''n'' log ''n'') may be the difference between days and seconds of computation. The main impetus for the development of computational geometry as a discipline was progress in computer graphics and computer-aided design and manufacturing (Computer-aided design, CAD/Compu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
AutoCAD
AutoCAD is a commercial computer-aided design (CAD) and drafting software application. Developed and marketed by Autodesk, AutoCAD was first released in December 1982 as a desktop app running on microcomputers with internal graphics controllers. Before AutoCAD was introduced, most commercial CAD programs ran on mainframe computers or minicomputers, with each CAD operator (user) working at a separate graphics terminal. AutoCAD is also available as mobile and web apps. AutoCAD is used in industry, by architects, project managers, engineers, graphic designers, city planners and other professionals. It was supported by 750 training centers worldwide in 1994. Introduction AutoCAD was derived from a program that began in 1977, and then released in 1979 called Interact CAD, also referred to in early Autodesk documents as MicroCAD, which was written prior to Autodesk's (then Marinchip Software Partners) formation by Autodesk cofounder Michael Riddle. The first version by Autodesk wa ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Siemens PLM Software
Siemens Digital Industries Software (formerly UGS and then Siemens PLM Software) is an American computer software company specializing in 3D & 2D Product Lifecycle Management (PLM) software. The company is a business unit of Siemens, operates under the legal name of Siemens Industry Software Inc, and is headquartered in Plano, Texas. History Evolution of Siemens PLM from UGS: 1963–2007 The first commercial product developed by what is now known as Siemens PLM Software was called UNIAPT, released in 1969 by a software company then called United Computing. UNIAPT was one of the world's first end-user CAM products. United Computing was founded in 1963 above a hair salon in Torrance, California, and went on to purchase the Automated Drafting and Machining (ADAM) software code from MCS in 1973. The code became a foundation for a product called UNI-GRAPHICS, later sold commercially in 1975 as Unigraphics. The following year, United Computing was acquired by the aerospace company ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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