Not entirely. You also have to remember fusing, you shouldn't run cable to a prop with 500 pixels fused for 5amp and then inject further into the prop at say 100, 300, 300 etc for 5v and then fuse that power injection. Best practice would be to power some lights off the controller up to 5amp and then cut V+, then power the remaining lights on power injection for the rest and use a suitable side fuse for that. making sure that data flows and the negatives are connected. Remember power flows both ways too.Thank you for this information. I suppose it assumes only one power supply. I tried to find contact information for the site but there appears to be none.
When V+ is broken this is due to another power supply being added. You could treat each new power supply section separately as it does not affect any other section. The pixel count would start again from 1 on the graph but could be renumbered when printed out. The graphs for the different sections could then be connected to give the whole picture. I found the post you referenced and that is what they did. However, there appears to be no way to not start at pixel 0 for the first point.