Category

Computers & Programming

Linkage Program

Linkage Snap Grid

No one has asked me about the grid yet. I suppose that most people that use the Linkage program don’t really notice it or, since they can’t set it, don’t notice that it’s really weird. I am going to add a grid view option. People will certainly notice…

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Linkage Program

New Linkage 3.1.4 Beta

Get the new Beta here: http://www.rectorsquid.com/temp/linkage.msi I’m almost ready to release a new production version of the Linkage program. This latest beta version fixes a locked link problem where connectors could still be moved during a JOIN operation. Now a JOIN operation will move connectors that are not…

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Computers & Programming

Software Architecture

In some blog posts, and in a few emails to colleagues and customers, I have mentioned the term “architecture.” I’m not sure if most non-programmers understand the issues surrounding software architecture. But I sure do. The Linkage program is familiar to people who read my blog (all 10…

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Computers & Programming

Document-View Architecture

The Linkage program is written in C++ using the Microsoft Foundation Classes (MFC). MFC provides C++ classes for things like strings, but also provides a document-view architecture. The idea behind the document-view architecture is that your document is the information that needs to be displayed and the view…

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Computers & Programming

Functioning Cam Simulation

Cam and Follower I was able to get a functioning cam simulation running in JavaScript. It was a little tricky and isn’t quite perfect yet. Mostly, I had to remember how my code works with the HTML5 canvas and with the coordinate system that I use for the…

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Computers & Programming

Curved Circles Tangent

I am writing software to simulate the operation of a cam and follower. I’ll add this to the Linkage program as soon as the details are worked out and the code is known to work right. The first type of cam I want to use is a typical…

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Linkage Program

Simulating More Complex Linkages

No Single Predicable Connector The image above represents a mechanism that the Linkage program cannot simulate. The simulator code only looks for predictable connector positions and there are none in this mechanism. Let me explain: The simulator will look for two links that each have a connector with…

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