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I had a running error, or something like that, in the Linkage program. I had targeted 30 frames per second for animations and I used a 33 millisecond target time for each frame. If a frame took less than 33 milliseconds to compute and draw, I would add…
Continue readingI have a specification at work that says my software needs to see a URL like this: https://blog.rectorsquid.com/derf?test={id}&test2={data} and then open the URL as if it were something like this: https://blog.rectorsquid.com/derf?test=12345&test2=hellothere I first wrote some code that would split the input using the open curly brace as a…
Continue readingI had to write code to show a variable-sized set of images in a view. Each mage fades in then shows for another 5 seconds before the next image fades in. I found some code at Stack Overflow that was partially complete and hinted at a way to…
Continue readingWindows 11 doesn’t let us place the taskbar on the side of the screen. Let’s count how much vertical space is taken up by things that are not the document that we are editing: title bar, tool bar, status bar, scroll bar, task bar, the measurement bar in…
Continue readingI exchanged emails with a nice guy who was interested in the Linkage program. He had some useful feedback and also some suggestions and comments about an issue I had with triads. A triad, as I use the term, is a link with at least three link connections…
Continue readingI am not a mechanical engineer but one thing I understand is ambiguity in linkages. It may be because I have a brain that is good at analyzing mechanical connections or because so many people send me mechanisms asking “why doesn’t this work?” Either way, it’s fairly easy…
Continue readingI’ve been torn on changing the test software from using splines as a sort of decoration on links into actual links themselves. There is no reason to drop in a spline as a drawing element then add a slider to it to turn it into a cam when…
Continue readingWhen I implemented the gear feature in the Linkage software, I decided to make the gears be links. This was mostly hidden and whenever a gear needed to turn a crank or be turned by a crank, I opted to have the user “fasten” the gear to the…
Continue readingThe spline and cam features are working in the Linkage software. Above is a video with my first attempt at a tutorial. Since I haven’t used the software to create splines and cams much, I stutter and pause a bit while thinking about what to do next. It’s…
Continue readingAfter many more hours of work, I have a complete polyline editor. Each segment can be a Bezier curve or a straight line. Each node can be a cusp or have the control points smooth and optionally symmetrical. Nodes can be added and deleted and the curve can…
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