FME Live: Removing a Black Border from a Raster Dataset скачать в хорошем качестве

FME Live: Removing a Black Border from a Raster Dataset

Here's the second of what I hope to make a regular series: FME Live. In other words, whenever I use FME I'll record the session so you can see how I work and hopefully pick up a few tips and tricks. It's based on the fact that I've been watching lots of people playing chess on Twitch so that I can learn a few things, and I figured I could do the same. And a LOT of other users on Twitter mentioned that they like this idea, so we might even create a Twitch account to share between us all, so we get lots of demos. Anyway, in this video, I'm doing some testing to figure out how to answer a question on GIS StackExchange. They have the dreaded "black raster borders" and - although this is a common question - I just needed to refresh my memory about what to do with it. Basically, you either change the cells to a different colour, or give them transparency, or mark them as nodata. The problem is, you need a certain value free to use as a repository for this bad data. This video shows me trying to figure out how I do these tasks. I have to say that I really love raster data and how it works. Sometimes it seems really complicated, but once you're familiar with it, there is an elegant logic behind it all.