https://forge.codesys.com/forge/talk/CODESYS-V2/thread/210e27743e/2021-03-04T13:43:27.377000ZRecent posts to Linear interpolation2021-03-04T13:43:27.377000Z2021-03-04T13:43:27.377000Zlarusohttps://forge.codesys.com/u/laruso/https://forge.codesys.comd3511857fcb7560f6f27e16e3c061a0eb94107d6

<div class="markdown_content"><p>I'm pretty sure that the formula should be:<br/> (ymax-ymin)/(xmax-xmin)*(value-xmin)+ymin</p> <p>For me the formula worked perfectly and is used to interpolate values for special needs, w/o using the function from the OSCAT library called LINEAR_INT.</p></div>

2021-03-04T13:41:49.481000Z2021-03-04T13:41:49.481000Zlarusohttps://forge.codesys.com/u/laruso/https://forge.codesys.comab4b1a88a48d8ed8a8b74479025b1b35e1b3a717

<div class="markdown_content"><p>I'm pretty sure that the formula should be:<br/> (ymax-ymin)/(xmax-xmin)*(value-xmin)+ymin</p> <p>For me the formula worked perfectly and is used to interpolate values for special needs, w/o using the function from the OSCAT library called LINEAR_INT.</p></div>

2020-02-27T21:36:47.401000Z2020-02-27T21:36:47.401000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.com35fe2ef0de9ea3679ba5fcd3ff1ef446b9f98ba5

<div class="markdown_content"><p>ymax/ymin*((value-xmin)/xmax-xmin)+ymin</p></div>

2020-02-27T21:36:43.293000Z2020-02-27T21:36:43.293000Zshooterhttps://forge.codesys.com/u/shooter/https://forge.codesys.comc92f0d51229ee1e787fa0d0bff33f9bbc3463e56

<div class="markdown_content"><p>if you open the oscat.lib in your codesys as a library, you can see the source code complete it is open source.</p> <p>easier way is download the txt version. and the pdf along.</p> <p>If you tell us what you want, we will look into your problem.</p> <p>btw if it is complicated you can always use fuzzy.</p></div>

2020-02-27T21:36:41.800000Z2020-02-27T21:36:41.800000ZAnonymoushttps://forge.codesys.com/u/*anonymous/https://forge.codesys.comfda0af58b1fdc708e777d441253ef32505bc8d83

<div class="markdown_content"><p><em>Originally created by:</em> H87</p> <p>Hi<br/> Annyone here know a good algorithm for linear interpolation. I know that oscat lib can provide a block that can do that. But i need the algorithm, so i can make a block my self. I need that bacause i'm making a PID regulator with a gain-scheduling option.</p> <p>I'm programming the PID in Codesys structured text.</p> <p>Best Regards <br/> Henrik</p></div>