[MUSIC] Hello everyone and welcome back. We're once again using a blank map document because in this lesson I'm going to show you how to use Arc Catalog, or the catalog pane, to help you manage and view your data. I'll go over showing you how to browse items on your disk, how to drag items directly into ArcMap from our catalog, show you where to create a new folder connection from this view, how to access meta data from there, how to delete feature classes, how to create new geo databases, and then I'll show you the stand alone application as well. To start, our catalog is the data management portion of ArcGIS. So, traditionally, ArcGIS has been divided up into a number of applications. We've only used Arc Map in this course, but Arc Catalog was a separate data management application, there was Arc Scene for 3D viewing, and Arc Global for a sort of Google like viewing, and they were all part of the analysis suite that Arc Map definitely took center stage. Our catalog recently has been integrated into Arc Map in version 10.0 and there's a catalog window, which we can bring up right here, or we can go to windows catalog to bring it up. And, I already had it over on the side so it flies out, and I'll pin it here so it stays. And, by default it'll look like this and be kind of up toward the top here, and you will see all your folder connections available and any other data sources that you have here too. Catalog makes it visible. The home folder, which is the default folder for your current map document where it's saved or if it's not yet saved, a default folder for all of your map documents. If we go back to where I was, we can see that I can see my geo databases. We can look inside of them and we can view any additional information with them, such as being able to right click and go to item description and we can see the metadata that way and the item description window pops up and we can view the metadata if we want. But, we can also go to properties and view things like the fields in the data set and any indexes that they may have to speed up rendering or access of attributes and all the other stuff that we haven't yet learned about, we can view in the feature class properties. If I wanted to take a look at the data set, I could say, look at this digital elevation model to roster, and I could just take it and I could click and drag it in Arc Map and it will add it to my data frame so I can view it. Well I'm not just stuck in this folder, so as I showed you before, everything is available up here and I have folder connections to a few spots on my computer. But if I wanted to, I can create a new folder connection up to the top here using the connect a folder button, and I can find the spot on my computer that I want to view data from and make a folder connection there. So, maybe I have a bunch of data in my Dropbox folder that I want to view. So, I can click on that, and I can click OK, and it makes it folder connection from my Dropbox. And from there, I can start browsing items in my Dropbox to bring into my math documents. So, going back, one of the questions that people often have is how to delete data that they've created? Either you've created a bunch of different geo processing files that didn't work out and you don't really want to keep them around or something along those lines. Well that's done through Arc Catalog. If it's a shape file, you can go find all of the files in Windows and just delete them, but geodatabase files look really different, and you can't delete those in Windows, because Windows does not understand those files. So, if we go back here, and I find the data that I was looking at a moment ago, I can go in here and I can just click on that feature class, I can right-click and I can go to delete and it wants me to confirm that I want to delete, and I'll click yes and it deletes the feature class from that geodatabase. Now, if I open that folder up in Windows Explorer just to view what it look like and see if I could try to delete stuff there, we'll find out that I can't. So, here is the geodatabase in Windows Explorer, and, I can see the whole folder just like in our catalog, but it doesn't have a little database icon that our catalog has for me. That's because our catalog sees that it's special folder. If I double click inside of the geodatabase, I'll see all kinds of gibberish here. This is a proprietary format. Windows does not understand it. And, all these things that are actually named in ways that we understand, those are just lock files. They say that I have a lock on working with this file and nobody else can work with this file while I have them open. The rest of this is where the data's actually contained. You should never edit this within Windows Explorer unless you want to just take this whole due database and delete it here. So, if I was to right click on it and go to delete now, I could do that, but I could not just go edit an individual feature class from within Windows here. Now, what if I wanted to create some new data in our catalog or in our GIS in general? I'd want to probably create a new container for it. So, maybe I have my Centralia geodatabase here, which has all of my source data, but I want to create kind of a scratch working database for this particular project. So, I can right click on the Centralia folder or work space here, and I can go to new, and I've got a lot of options for things to create here, from folders, to geodatabases, to connections, to other databases. I can create shape files directly in here, and all sorts of other information. And, I'll just click file geodatabase here, and it thinks for a minute and then it gives me a new one and is asking me for the name, so I'll call it scratch, for scratch paws. And stuff like this happens. It says fail to rename, my guess is because this is in a synchronized folder and somethings got a lock on it. So, I'll click on it again, I'll F2 to rename and use scratch, and now I'll spell it correctly. There we go, renamed. Now, if I want to I can move files directly in or out of there. While the most likely result is that I do some work with something, I can export data directly to there from another geodatabase if I want to. So, I could take this digital elevation model that I have, and I can go to Export > Raster To Different Format and the Copy Raster dialogue comes up. By default, it wants to put it in my default geodatabases, but I can choose that new geodatabase that I just created by clicking up browse button and then navigating to that location that I put that geodatabase right here. And, then giving it a name, I'll call it Centralia dm working, and I will click okay to have it copy it on over. And, what I'll get is I'll get this down here saying it's copying the roster, because it's a geo processing tool, and in the results pane I'll see that it's working. Copy roster is working right now too. So, I can do lots of geo processing type tasks from within the dark catalog pane as well, depending on what I'm trying to do. The last thing I want to show you is the stand alone Arc Catalog application. Over on the left you have the same catalog tree we were just looking at ArcGIS. From the right you have a contents and a preview pane and a description pane. So, if I want to see that the m that I was looking at, I can click on it, then go to preview, and that activates it, and then preview lets me view it in just a default symbology. But there we go. We just saw this. And, then I can go to description and I will see the description or the metadata for the data set that is currently selected on the left. I can also see on the right here our toolbox and I can do geo processing within here and I get the results paint just as I do with an ArcMap. Sometimes you want to do some basic geo processing on some data you don't open up ArcMap. You don't have to use this though, you can use Arc Catalog in ArcMap for all of your geo processing if you like. Okay, that's it for this lesson. In this lesson, I showed you how to use Art Catalog to view, preview, and manage some of your data. Art Catalogue is, sort of, on its way out. But, it's still necessary for creating new work spaces, and new feature classes, and other items, as we saw in this right click menu over here. It's also where we would go to delete existing data sets if we didn't want them anymore. I hope that helps you better understand how to work with ArcGIS. See you in the next lecture.