LiveCode Forums

Hey cmhjon,
I have just updated a previous post to include a revised file that now works. I have generated an online barcode and verified that the output I am getting matches. Also scanned it with an online reader for a correct scan.
XdM

I did a quick check and it looks like at least my checksum calc is incorrect. It should be reading the character number (line in table) not the number itself.... As long as it reads the right code, I guess it's a win. I am just using random tables off the internet and am not an expert. I will look t...

EDITED: I had a look into barcode generation and thought it might be a fun little project. Only took a day, but managed to get proof of concept. Managed to get a barcode generated, and scanned online for a correct reading. Startcode, code, checksum and Endcode. My previous file was using incorrect c...

I use that website too... Type in "1" and get a code, then type in "12" and get a code, and you will notice that the length of the code is the same, but the centre changes... so there is "padding". In the case of a 128, there is a start code that tells the reader what character set to use (CODE A, B...

There are online barcode and QR code generators that are pretty simple to use. Without doubt, someone with some LC nous could run something that could go to the site, enter the details and kick it back to LC. Just search Free Online Barcode Generator to see what's out there. Otherwise, I reckon with...

OK... Thanks to the brainstrust, we have an answer on this one. For whatever reason, when you scale an image and then rotate it, or rotate an image and scale it, there is a degree of distortion that occurs unless some specific steps are taken in the operation. As long-winded as these are, they work ...

Gee! I really do hope you've cracked this! I have been trying to work out how to get something to sit on top of a video for a while. If it's a group situation, I'd be interested to know! Are you able to post a stack, even if the media isn't included (I can change code to reference other things on my...

Richmond, when I apply your code with the only tweak being scale = 1.001 (so I don't get big changes in scale that don't allow me to see distortion, I get this: Rotation 0 Rot0.jpg and Rotation 90 Rot90.jpg It seems like the bounding box (not a square, a rectangle so the height is shorter than the w...

Thanks Richmond, but I am still getting issues. It looks like in your example that the width and height are changing as you rotate. The rotated image looks shorter than the original... When I use the same code with a scale factor of 1.01 (so it doesn't keep scaling wildly and you can't see the effec...

Hi all, I feel like I am missing something small here but can't seem to search the right terms. I have a jpeg image that I am reducing the width and height of (i.e. scaling" it) then I am rotating it. Scaling is a function of the app that I am making, so I can't just import a smaller image. I need t...

Thanks Bernd, spot on. Glad to hear that the problem is in Livecode and not somewhere between the computer and my chair. It's working well, but I am now just encountering a little accumulative rounding issue. I will just write a couple of lines to keep track of actual figures and round them instead ...

Alright... I have adapted the code to work for the spinal model. I have managed to get the images to all rotate as necessary. I can set a rotation point and use it for multiple vertebrae, all works fine. I am using line graphics to keep track of the rotation points though. So each vertebra has a lin...

OK... previous ideas didn't come to fruition, but Bernd has hit the nail on the head. That's the maths that I needed. I now just need to adapt to suit. I have done a trial stack with rectangular images, and managed to get the pieces to rotate around a selected point so I can move upper without lower...

Thanks guys, I just got back and will have a look at them. If the "rotate about x,y" thing works, I should be able to get it all functional. As for the action... it's a rotation that I want. Basically, the vertebrae rotate around a central point that is in the middle of the cartilage discs between t...

Hi Brainstrust, I am working on a little pet project that will be using inverse kinematics to simulate a spine's movement. Think of what I am doing like a stack of coins. If I pick up the bottom coin, all of the coins above it move as well. If you pick up the second to bottom coin, the coins above i...