GGR272H1 Lecture Notes - Lecture 8: Arcmap, Shapefile
18 Mar 2018
School
Department
Course
Professor
Document Summary
Interaction between a and b and all of c and its intersection between a, Method: add to current selection similar to union, remove from current selection remove words in that selection, definition query. Instead of using key words you are using the title of each attributes/records: type = (cid:858) estaura(cid:374)t(cid:859) It hides or ignores all other data but the one being selected. Select by location: finding an attribute in a specific radius, restaurants within 500 m of a fire station. Mixing attribute and location queries: first select by attribute then select by location check use selected features. Clipping a feature class: clip tool, cut out part of o(cid:374)e the(cid:373)e usi(cid:374)g a(cid:374)other the(cid:373)e as a (cid:862)(cid:272)ookie (cid:272)utter(cid:863) Input (data you want to subtract) + clip feature (area you want to keep while removing the rest) = output (maintained area) only keeps the area that is inside the shape: only preserved data inside the shape.
