ESSE 3600 Lecture Notes - Georeferencing, Arcgis, Second Order (Religious)

• School: York University
• Department: Earth, Space Science and Engineering
• Course: ESSE 3600
• Professor: Sohn

Document Summary

In lab 3, students were introduced to image georeferencing and data collection. The purpose of this exercise was to become familiar with the co- registration process between image data and map vector data using digitization. Since there was no alignment between image features and map features, the map had to be rectified by selecting control points. At first, the data was auto-adjusted using the georeferencing toolbar in. The vector data was loaded onto the map, and they were two separate shapefiles. Since the alignment between the map data and the vector data was not 100% identical, an attempt was made to select fifteen control points and then fix the vector alignment with the map data. Fifteen control points were selected and then saved in a view link table that contained information about x and y coordinates, in order to determine the minimum number of points required for polynomial transformation.