| File Type | Extension | Use Case | Description |
|---|---|---|---|
| Keyhole Markup Language | .kml, .kmz | Overlaying geographic data | XML-based format for expressing geographic annotation and visualization |
| Shapefile | .shp, .dbf, .shx | Vector map layers | Geospatial vector data format for GIS software |
| GeoJSON | .geojson | Lightweight vector data | JSON-based format for encoding geographic data structures |
| GPS Exchange Format | .gpx | GPS data interchange | XML schema for describing GPS data like waypoints, routes, and tracks |
| Comma-Separated Values | .csv | Tabular data import | Plain text format for storing tabular data, often used for GPS coordinates or metadata |
| GeoTIFF | .tif, .tiff | Raster map layers | TIFF variant enriched with GIS-relevant metadata, used for satellite imagery and terrain data |
| MBTiles | .mbtiles | Offline raster maps | Single-file database format for storing raster map tiles for offline use |
| Map printouts, documents | Portable Document Format for preserving document layout and graphics | ||
| Text | .txt | Notes, metadata | Plain text format for simple notes or metadata related to map features |
| ZIP | .zip | Data compression | Archive file format for bundling and compressing multiple files together |
| JPEG | .jpg, .jpeg | Geotagged photos | Lossy image compression format, often used for geotagged field photos |
| PNG | .png | Overlay graphics | Lossless raster graphics format, useful for logos, icons, and map overlays |
| GIF | .gif | Simple animations | Graphics Interchange Format, supports simple animations like blinking markers |
| MP4, AVI, MOV | .mp4, .avi, .mov | Geotagged videos | Various video formats that can be geotagged and associated with map locations |
Chapter 1: Introduction (0:00-0:59)
– Introduction to QGIS
– Why use QGIS?
Chapter 2: Downloading & Installing (0:59-7:09)
– The QGIS website
– Downloading QGIS for your OS
– Installation
https://opendata.cityofnewyork.us/
Chapter 3: A Quick Tour of the Interface (7:09-13:46)
– The Layers List
– The File Browser
– The Map Canvas
– The Toolbar
– The Menus
– The Processing Toolbox
Chapter 4: Adding and Styling Data (13:46-18:28)
– Working with a DEM layer
– Adding layers to the map
– Styling layers: basic symbology
– The “Identify Features” tool
– Changing the projection
Chapter 5: Categorized Symbology (18:28-29:00)
– Changing symbol type
– Changing colors
– Changing opacity
– Removing stroke
– Applying changes
EPSG:3857
Chapter 6: Graduated Symbology (29:00-31:59)
– Styling based on data values
– Working with numeric data
– Adjusting graduated symbology
Chapter 7: Styling Based on Size (31:59-36:58)
– Styling based on stump diameter
– Changing the size of symbols
– Viewing and adjusting symbol levels
– Removing unnecessary layers
– Editing features and saving changes
Chapter 8: Labeling and Editing Features (36:58-46:39)
– Adding labels to the map
– Different labeling options
– Editing vector data
– Creating a new polygon layer
– Adjusting vertices
.
Chapter 9: Buffer Analysis (46:39-52:59)
– Buffering vector data
– Setting buffer distance and other options
– Running the buffer analysis
Chapter 10: Count Points in Polygons (52:59-57:02)
– Counting points within polygons
– Setting up the count points in polygons analysis
– Running the analysis and viewing results
Chapter 11: Raster Data & Styling (57:02-59:39)
– Working with raster data
– Importing DEM data
– Styling the DEM layer based on elevation
Chapter 12: Conclusion & Resources (59:39-end)
– Final thoughts
– Additional resources