04: Generative Terrains
In Lab 04, I worked with the data provided to generate analytic rasters for the distance between EPA sites and Zebra Mussels. I began by adding x and y coordinates as a layer corresponding to where Zebra Mussels were found. I then reprojected this layer as a vector in the correct coordinate systems (ESPG: 5070). In class, we generated a raster between the shoreline points and EPA sites by creating a two-dimensional array, and, on my own, I merged the shoreline points and river points together to create another raster between bodies of water and plastics facilities. I had some difficulty converting the river “lines” into river points, and, once that was done, I merged the river points with the shoreline points. However, in the final map I created for lab 04, the raster I generated did not include the shoreline or river points. Instead, I was interested in illustrating the distance between plastic facilities and zebra mussels. This was fairly simple because both of my data sets were already in the correct file format (points), and they had already been reprojected in the correct coordinate system, so all I had to do was use the function “distance to nearest hub (points).” In terms of symbology, I wanted my raster to appear only in the sub-basins, so I used the tool “Clip Raster by Mask Layer,” and I assigned “mask layer” to the sub-basins. Aesthetically, I included the rivers, to add more details, and I added a legend after I created a new “print layout.”
Software: QGIS2023
