Learning QGIS
Anita. Graser
Bok Engelsk 2016 · Electronic books.
| Annen tittel | |
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| Utgitt | Birmingham : : Packt Publishing, , 2016.
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| Omfang | 1 online resource (210 p.)
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| Utgave | 3rd ed.
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| Opplysninger | Description based upon print version of record.. - Cover; Copyright; Credits; About the Author; About the Reviewer; www.PacktPub.com; Table of Contents; Preface; Chapter 1: Getting Started with QGIS; Chapter 2: Viewing Spatial Data; Chapter 3: Data Creation and Editing; Chapter 4: Spatial Analysis; Chapter 5: Creating Great Maps; Chapter 6: Extending QGIS with Python; Index; Installing QGIS; Running QGIS for the first time; Introducing the QGIS user interface; Finding help and reporting issues; Summary; Loading vector data from files; Dealing with coordinate reference systems; Loading raster files; Loading data from databases. - Accessing raster and vector layer statisticsComputing zonal statistics; Creating a heatmap from points; Finding nearest neighbors; Converting between points, lines, and polygons; Identifying features in the proximity of other features; Sampling a raster at point locations; Mapping density with hexagonal grids; Calculating area shares within a region; Batch-processing multiple datasets; Automated geoprocessing with the graphical modeler; Documenting and sharing models; Selecting by location in SpatiaLite; Aggregating data in SpatiaLite; Creating a graduated style. - Creating and using color ramps. - Leveraging the power of spatial databasesSummary; Advanced vector styling; Labeling; Designing print maps; Presenting your maps online; Summary; Adding functionality using actions; Getting to know the Python Console; Creating custom geoprocessing scripts using Python; Developing your first plugin; Summary; Installing QGIS on Windows; Installing on Ubuntu; Georeferencing raster maps; Creating point styles - an example of an airport style; Creating line styles - an example of river or road styles; Creating polygon styles - an example of a landmass style; Selecting features with the mouse. - Loading data from OGC web servicesStyling raster layers; Styling vector layers; Loading background maps; Dealing with project files; Summary; Creating new vector layers; Working with feature selection tools; Editing vector geometries; Using measuring tools; Editing attributes; Reprojecting and converting vector and raster data; Joining tabular data; Using temporary scratch layers; Checking for topological errors and fixing them; Adding data to spatial databases; Summary; Analyzing raster data; Combining raster and vector data; Vector and raster analysis with Processing. - Selecting features with expressionsSelecting features using spatial queries; Using basic digitizing tools; Using advanced digitizing tools; Using snapping to enable topologically correct editing; Editing attributes in the attribute table; Editing attributes in the feature form; Calculating new attribute values; Setting up a join in Layer Properties; Checking join results in the attribute table; Finding errors with the Topology Checker; Fixing invalid geometry errors; Clipping rasters; Analyzing elevation/terrain data; Using the raster calculator; Converting between rasters and vectors
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| Emner | |
| Sjanger | |
| Dewey | |
| ISBN | 978-1-78588-033-9
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