Question

The Austin folder contains two shapefiles showing dog off-leash areas as points and polygons. Both have coordinate problems. Describe the problem for each; then fix them and create a map showing both the points and the polygons with a backdrop of the major transportation arteries in Austin. (Hint: Open ArcMap and load arteries first, in order to be able to compare the other data sets against it.) capture the map.

Answer 1

The dog_offleash_areas point file has an undefined coordinate system, although it appears to be in NAD 1983 State Plane Texas Central like the other Austin data. The dog_offleash_bnd polygon file is in an unlabeled GCS. The other answer is the map. Method: Load the arteries into a new map document. Add the dog point file, which appears but with a warning. Examine the coordinate system to determine that it is unlabeled, and use Define Projection to set it to match the other Austin data in State Plane. Add the dog polygon file, which does not appear. Examine the coordinate system to determine that it is unlabelled and contains degrees. Use Project Define to label it as GCS_NAD_1983, and it then appears with the rest of the data. It can be projected to State Plane if desired, but it is not necessary to make the map.