I finished the minimal work necessary to use the new installation package. I don’t have time to do more extensive work on it but I think that it is good enough to send out. The user cannot pick a destination for the install and the program is installed…

The bug mentioned in an earlier post today was an easy fix. During the simulation, I do error checking to make sure that a set of links that are being moved into their new locations are not already stuck in their current location. Sort of. Invalid Connections Shown…

Note: The bug mentioned below has been fixed and is described in This Post. I encountered a bug in the Linkage simulation code. I have error checking for mechanisms that won’t work and I was aware of some situations that were not working right. This new problem surprised…

About ten years ago, I was building a robot and I found a demo of a 4-bar linkage design program that would synthesize a mechanism based on an input curve. It suited my needs but I wanted to do more. I ended up wanting to write software for…

Animate Gif Converted from Linkage AVI File The image above was not created by the Linkage program. It was converted from an AVI file that was created with Linkage. I’m thinking about how I might be able to build in the GIF animation creation feature so that I…

bug 1 [buhg]  noun, verb, bugged, bug·ging. noun Also called true bug, hemipteran, hemipteron. a hemipterous insect. (loosely) any insect or insect-like invertebrate. Informal. any microorganism, especially a virus: He was laid up for a week by an intestinal bug. Informal. a defect or imperfection, as in a…

I found a major memory leak in the Linkage program. Fortunately, the leak only added up to large amounts of memory if a simulation was running for a while. The leak was caused by my forgetting to create a virtual destructor for a C++ class. One of the…