QGIS 3

Georeference the drone image by assigning real-world coordinates to control points in the Georeferencer, using GPS and WGS 84 UTM zone 17S coordinates, then save the project in QGis.

Learn how to georeference an image without control points in QGIS by using a road layer as reference, adding map canvas points and applying a transformation.

Create vector layers with shapefiles in QGIS 3, modeling rivers, streets, and buildings, set geometry and coordinate system crs, then save as utf-8.

Create vector layers in geopackage to replace shapefile, and add land cover and lake layers in the same geodatabase with polygon geometries and a shared coordinate system.

In QGIS 3, work with points by entering edit mode on the buildings layer, use add point feature to place points, and move points with vertex tools, then save edits.

Activate advanced digitizing and snapping to create, split, merge, and reshape lines, fix topology errors, and ensure line edges match using snapping options.

Learn to digitize road networks and rivers in QGIS 3 by adding line features, toggling edits, using vertices to refine shapes, and saving layered changes.

draw and edit polygons in QGIS 3 by creating a study area, splitting, merging, reshaping, and adjusting vertices while avoiding gaps or overlaps.

Draw polygons for the study area in QGIS 3, activate and edit land cover and lake layers, and use split tools to separate crops, forest, and other features.

Import UTM coordinates from a CSV table into QGIS using a delimited text layer, selecting x and y fields for WGS 84 UTM zone 17 South.

Create new fields in each layer's attribute table by entering edit mode, adding fields such as type (text, 25) and length (decimal, two decimals); save changes and save the project.

learn to enter and update table attributes in qgis 3 by using editing mode, open attribute tables, enter names for points and roads, and apply batch updates with expressions.

Calculate geometries in QGIS 3 to obtain length, area, and perimeter. Use the attribute table, edit mode, and expressions such as geometry length, area, and perimeter to update values.

Learn to calculate x and y coordinates in qgis 3, create new fields, update all, and convert to decimal degrees and degrees minutes seconds using epsg 32717 and 4326.

Learn to calculate geometries in QGIS 3 using the ArcGeek Calculator plugin, producing x/y coordinates, lengths, and areas in multiple units with optional new layers and precision options.

Perform table operations in QGIS 3 to calculate area-based percentages, create new fields like area hectares and length kilometers, and save updates using vector analysis tools.

Apply point, line, and polygon symbology in qgis 3 by using categorize and classify to assign symbols by type.

Import external symbology from the QGIS style website using the style manager, then customize hospital, housing, police, school, and religious icons by color and size, and save the project.

Learn to place labels in QGIS using the attribute table and label properties; format numeric values with units, rounding, and concatenated expressions.

Learn to add a topographic effect in qgis (optional) by applying hillshade on top of your layers, adjusting transparency, and saving the project.

Explore the general structure of a map, including title, layers, and layout, and apply clean naming with capitalization and no underscores before saving the project and printing.

Configure the layout designer by setting the paper size to A4 and orientation, then add a title and label, adjust font and center alignment, and save the project.

Define the map body by adding layers and drawing the map in the vertical toolbar. Set the scale (for example 5000) and adjust borders, then save the project.

Learn to add and customize graticules in QGIS 3, including UTM planar grids and WGS 84 UTM zone 17 south, with interval and style settings.

Add a north arrow by selecting the North Arrow option, adjust item properties to choose symbols, and save the project in QGIS 3.

Create and customize a location map in QGIS 3 by organizing layers, styling roads and rivers, and adding labels and an overview in a layout with grids and coordinates.

Add a legend to the map, adjust items, remove unused layers, format for publication with two columns and group heading color, then save the project in QGIS 3.

Add numerical or graphic scales in QGIS 3, enable dynamic scale text, and customize scale bars with units, font, color, and division styles, then save the project.

Add geodetic reference parameters and projection information, import information cards and logos as raster images, and assemble elements like plots, elevation profiles, and attribute tables to produce a publication-ready map.

Export maps in QGIS 3 by printing layouts or saving as images or PDFs, crop the map content, and adjust resolution and size for documents.

Explore geoprocessing in QGIS by creating a new project, adding buffer layers for points, lines, and polygons, and configuring distance, units, and join styles to view the area of influence.

Perform an intersection to identify the common area between two or more layers in QGIS by using the vector geoprocessing tool intersection and selecting the input layer and overlay layer.

Use the clip tool to cut features to the perimeter of a polygon layer by selecting an input layer and a clipping area, yielding only features inside the polygon.

Learn to merge multiple layers of the same type in QGIS 3 using the merge tool and union input layers to combine points, lines, or polygons into a single layer.

Consolidate adjacent polygons with identical id values using dissolve in QGIS 3 by selecting the dissolve field, then apply label and symbology settings to reflect the merged features.

Define projection using the processing toolbox, select input shapefile, choose a coordinate reference system, such as WGS 84 UTM zone 70, assign and verify in properties.

Reproject a layer to another coordinate system with the reproject layer tool, selecting a target crs such as South America 56 utm zone 70 south, and save as shapefile.

Import a table of x and y coordinates into QGIS via a delimited text layer, set the decimal separator and coordinate system, then export as geopackage or shapefile.

Apply IDW interpolation in QGIS 3 to turn precipitation and temperature points into rasters, adjust extent and pixel size, style with color ramps, and inspect results with identify features.

Create a slope map in QGIS 3 from a digital elevation model, compute slope in degrees using raster terrain analysis, then visualize with a color ramp and hillshade.

Learn to reclassify a raster by slope in degrees using the processing toolbox, build a reclassification table, create eight classes with color ramp and labels, and view the reclassified map.

Create contour lines and isotherms from elevation and temperature data in QGIS 3, adjust interval values, and generate contour polygons for areas between lines.

Create a viewshed from a point using a digital elevation model, set observer height and maximum distance, visualize the observed surface, and save the temporary results to a file.

Learn to apply equations in the raster calculator to convert slope from degrees to percentage and temperature from Celsius to Fahrenheit. Save outputs as geotiff or other raster formats.

Delineate a watershed in QGIS 3.38 using the ArcGIS calculator plugin to build a water network, delineate the basin, and compute morphometric parameters including Strahler orders.

Create a topographic profile from a polyline using the profile tools plugin and a digital elevation model to generate a cross-section, then save the image, and copy coordinates.