Share Posted November 29, 2020 Hi all, Back again, with more loco automation problems. I thought, after all the brilliant assistance I had last time I posted, I would have no problem creating this animation. How wrong I was. Any help would be appreciated. I think my problems are obvious. Thanks you See the Pen ZEpYjyK by spring99 (@spring99) on CodePen Link to post Share on other sites
Share Posted November 29, 2020 Hey @Dez One probelm I see, is that you are using an enclosed path as the circle path for your circle (don't know how else to say this) That is way your piston-link rotates one way, than the other instead of infinitely rotating in the same direction with the wheel. If you for example set stroke to none and fill to a color on that path, you can see that the path you are mentioning is an enclosed shape. I exchanged that with a single-stroke path instead and that problem is out of the way. See the Pen zYKxJoy by akapowl (@akapowl) on CodePen It is rotating in the wrong direction though. I just grabbed some random circle-path code from somewhere, To show what I mean. So the start and end of that particular stroke seem to be the other way around from what you need. Just see this as a hint to what went wrong in your demo, not as the absolute solution 2 Link to post Share on other sites
Share Posted November 29, 2020 Hey @Dez Welcome back. Look at this example again. The key is the circle (as Paul mentioned) plus the onUpdate function. See the Pen abvXeoV?editors=1010 by mikeK (@mikeK) on CodePen Here in a close-up. It becomes apparent that the positioning of the individual parts and the mathematical calculation can still be optimized. See the Pen gOpXozV?editors=1010 by mikeK (@mikeK) on CodePen Put a few more coals on it ... Mikel 2 Link to post Share on other sites
Author Share Posted November 30, 2020 Thanks akapowl for your valued observation. It seems I need to brush up on my path creation. Also thanks to mikel for your welcome and your reminder from your codepen. In my updated model I've corrected the path which rectified the rotation, as akapowl noted, now you’ll see my problem is still with the right hand end of the link. I can’t seem to anchor it to the movement of the piston. See the Pen ZEpYjyK by spring99 (@spring99) on CodePen Link to post Share on other sites
Author Share Posted November 30, 2020 Hi all, I didn't have this problem when I created my other loco a few months ago. See See the Pen KKpGoyP by spring99 (@spring99) on CodePen But the same principle doesn't seem to work correctly this time. Link to post Share on other sites
Share Posted November 30, 2020 Hey @Dez, I've now set up a different, simple concept here. It looks great with SVG elements. But: There is still a mistake in it. See the Pen zYKGxpe by mikeK (@mikeK) on CodePen Tonight I'm looking at the difference between your old and new implementation - why it doesn't work ... Turn up steam ... Mikel 3 Link to post Share on other sites
Author Share Posted November 30, 2020 Hi Mikel, It's really good that you're showing a big interest in my project. I too have had it working with just lines, but when I added the Link as a png or as a svg the problem returns. I'm trying really hard to turn up the stream but I seem to be running out of it. Must be a leaky boiler. Good luck tonight. Dez Link to post Share on other sites
Share Posted November 30, 2020 Hey DEZ, Take a look at the two png PistonLinkage: in the new one, the motif is not at right angles - this could be the problem. Every pixel counts ... Mikel 1 Link to post Share on other sites
Author Share Posted November 30, 2020 Hi mikel, It may be me, but I can't find the images you mention. Did you attach them? Stay cool, Dez Link to post Share on other sites
Share Posted November 30, 2020 Hey Dez, See the Pen c5c84183d7725d3c335f141cb5b57f8f by mikeK (@mikeK) on CodePen ... Mikel 1 Link to post Share on other sites
Author Share Posted November 30, 2020 Okay I can see what you mean now mikel I'm pretty sure I tried a straight version last week, but I'll have another go to make sure. Dez Link to post Share on other sites
Share Posted November 30, 2020 So we'll see the solution tomorrow. Just do it. Mikel Link to post Share on other sites
Author Share Posted December 2, 2020 Hi Mikel It's a little nearer. https://codepen.io/den_smith/pen/VwKvXYz It's taken longer than it should have because of Computer problems. I've had to do another image restore. Along with all the updates etc. Regards Dez Link to post Share on other sites
