Thursday, April 11, 2019

Week 12: Georeferencing and 3D Map

    Alright, Alright! Last lab folks! I'm excited to be done and to see how far I have come but I'm sad to see it go! And by last lab I mean the last lab with step by step instructions which leads to the next emotions I am feeling: anxiety, dread and worry. I say this because next week I have to come up with my own map idea from scratch! (crying inside)
      Anyway, about this weeks lab. So this week is about georeferencing and to quote the lab instructions it is: "also called ‘image registration’, is a process you may use to tell a raster dataset (like an aerial photograph or scanned map image) “where it belongs”. This is done by identifying a common point on the target layer and an already referenced control layer (roads shapefile, DOQQ, DRG) and linking these common points." For this lab's purpose I took two UWF aerials and clipped points, known as control points or as I like to think of as snap points, from the image to the corresponding UWF building layer in order to sync the image with the buildings, and by proxy, roads layer. After that was done I had to digitize or trace the outline of (in the aerials) building 72 which was new Health Leisure and Sport Facility. This was done because building 72 was the only non-digitized building in the feature class. Once that was done it was of course added to the attribute table and labeled as necessary. This was repeated with Campus Lane, a road that was not digitized for the UWF roads layer. Then I made a two ring buffer zone of 330 and 660 feet respectively for an eagle nest on campus and linked a picture from my google drive to the map to see the nest. (pretty sure I forgot to add the link to the final map itself) Once that was done I was free to go crazy and create the lovely map I am going to include below.
     Now that this map was created I was prompted to create a 3D Local scene, and let me say this was sooo cool to see. I used the LAS dataset to raster tool to turn the LAS dataset UWF_Lidar.lasd into an output raster UWF_DEM. The lab then prompted me to alter a few settings of the local scene before allowing me to make the second map I am including. It was a little tight to add things but I think it looks pretty pleasing to the eyes.
     Well that is all I have to say about this lab. I will be posting for what may be the last time in the next 2-3 weeks for my final in Intro to Gis Lab. Hope everything goes well for everyone and anyone who reads this!


Thursday, April 4, 2019

Week 11 Geocoding and Network analysis

This lab was engaging, it made me refer to the discussion board at least 5 times because some things in the lab instructions were not clear or incorrectly labeled. To put it simply this lab we learned to geocode 21 EMS locations and make a route between three of them, map the locations with proper locations and then make a final map. We used the project tool, create address locator tool, geocoding tool (pick the address tool), network analysis and then made a route tab.  I don't know what else to say because my map kinda sums itself up.