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Upon further inspection, A Stephenson value gear mechanism cannot be built with the Linkage program. I don’t have the necessary simulation code to handle the complexity of the links. The problem comes from the connection of the “Link” to the rest of the mechanism. The position of…
Continue readingA user asked me about curved links in the Linkage program. I think that it is safe to say that curved slider paths is the desired feature because the visual representation of a link is fairly meaningless. It is the connectors that matter. Straight Sliding Connector The straight…
Continue readingComputer monitors, the old CRT kind, scan from top to bottom like a TV. Before computers, that didn’t cause any problems but when people started accessing the screen, a new coordinate system (variation) was born. It was the “inverted” Cartesian coordinate system. Well, I don’t think that there…
Continue readingIt turns out that moving the sample gallery into the main menu was only a little bit troublesome and only took an hour for me to figure out how to fix. The problem appeared to be that the MFC code created a new gallery window of some sort…
Continue readingThe setup program now works correctly to update the Linkage program. It turns out that there are a few more manual steps I need to take when creating the installer (MSI file) so that an update actually updates the linkage.exe executable file. Microsoft really dropped the ball when…
Continue readingI was contacted by a very helpful person who tried the Linkage program and had some very good suggestions. I fixed a few bugs and then implemented a few of the less complicated features that we discussed. Fixed a problem where I had added , and . shortcut…
Continue readingSomeone suggests adding the ability to lock the length of a link. After giving this some thought, I can think of a few ways to handle it. There are some complications though and I’m not sure how to handle them. First, the questions: If someone moves a connector…
Continue readingBezier Cam Designer Experiment The experiment is working. The JavaScript code allows a fixed number of points to be manipulated to create a poly-Bezier shape. The Bezier curve is drawn “by hand” for both the normal version and for the version that uses polar coordinates. The interesting thing…
Continue readingI am playing around with some code related to Bezier curves. Although many programming languages provide a Bezier curve drawing function, I need my own. I need it so that I can translate a string of Bezier curves into polar coordinates for drawing a cam. See my older…
Continue readingI have started work on adding cams to the Linkage program. It has taken me a while to add this feature because of the complex nature of cams. For instance, cams can be used to control valves in an engine or they can be used to control the…
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