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QGIS Python Programming Cookbook
Joel Lawhead 著
更新時間：2021-07-23 19:49:23
開會員，本書免費讀 >
最新章節：
Index
IfyouareageospatialanalystwhowantstolearnmoreaboutautomatingeverydayGIStasksoraprogrammerwhoisresponsibleforbuildingGISapplications,thisbookisforyou.Theshort,reusablerecipesmakeconceptseasytounderstand.Youcanbuildlargerapplicationsthatareeasytomaintainwhentheyareputtogether.
最新章節
- Index
- Visualizing data on a globe
- Visualizing data in 3D with WebGL
- Using OpenStreetMap's points of interest in QGIS
- Creating HTML labels in QGIS
- Using a different status bar CRS than the map
品牌：中圖公司
上架時間：2021-07-23 18:59:15
出版社：Packt Publishing
本書數字版權由中圖公司提供，并由其授權上海閱文信息技術有限公司制作發行
- Index 更新時間：2021-07-23 19:49:23
- Visualizing data on a globe
- Visualizing data in 3D with WebGL
- Using OpenStreetMap's points of interest in QGIS
- Creating HTML labels in QGIS
- Using a different status bar CRS than the map
- Calculating length for all selected lines
- Creating dynamic forms in QGIS
- Using expression-based labels
- Generating points along a line
- Using the __geo_interface__ protocol
- Using alpha values to show data density
- Using generators for layer queries
- Using NULL values in PyQGIS
- Creating a layer style file
- Rendering map layers based on rules
- Adding a layer to geojson.io
- Creating tiles from a QGIS map
- Introduction
- Chapter 9. Other Tips and Tricks
- Image change detection
- Geolocating photos on the map
- Computing road slope using elevation data
- Collecting field data
- Creating a dot density map
- Creating a heat map
- Performing nearest neighbor analysis
- Finding the least cost path
- Creating a mapbook
- Tracking a GPS
- Routing along streets
- Performing network analysis
- Creating raster footprints
- Geocoding addresses
- Creating an NDVI
- Introduction
- Chapter 8. QGIS Workflows
- Keeping dialogs on top
- Stepping the user through a wizard
- Creating tabs
- Creating checkboxes
- Creating radio buttons
- Creating a combobox
- Creating a file input dialog
- Creating a simple text input dialog
- Displaying a progress bar
- Creating an error dialog
- Creating a warning dialog
- Creating a simple message dialog
- Using log files
- Introduction
- Chapter 7. Interacting with the User
- Loading a map from a project
- Saving a map to a project
- Adding a world file to a map image
- Adding a table to the map
- Adding a grid to the map
- Adding a custom shape to the map
- Adding a legend to the map
- Adding a logo to the map
- Adding a north arrow to the map
- Adding a scale bar to the map
- Adding labels to a map for printing
- Using the map composer
- Creating the simplest map renderer
- Introduction
- Chapter 6. Composing Static Maps
- Creating a mouse coordinate tracking tool
- Building a custom selection tool
- Using a map tool to draw polygons or lines on the canvas
- Using a map tool to draw points on the canvas
- Adding standard map tools to the canvas
- Changing map layer transparency
- Labeling features
- Adding real-time weather data from OpenWeatherMap
- Using the Bing aerial image service
- Using the OpenStreetMap service
- Using pie charts for symbols
- Using SVG for layer symbols
- Setting scale-based visibility for a layer
- Navigating to a map bookmark
- Creating a map bookmark
- Creating a categorized vector layer symbol
- Creating a graduated vector layer symbol renderer
- Using icons as vector layer symbols
- Creating a complex vector layer symbol
- Rendering a single band raster using a color ramp algorithm
- Symbolizing a vector layer
- Iterating over layers
- Changing the map units
- Accessing the map canvas
- Introduction
- Chapter 5. Creating Dynamic Maps
- Clipping a raster using a shapefile
- Georeferencing a raster from control points
- Converting a raster to a vector
- Classifying a raster
- Creating a KML image overlay for a raster
- Converting a map coordinate to a pixel location
- Converting a pixel location to a map coordinate
- Creating pyramids for a raster
- Converting a TIFF image to a JPEG image
- Mosaicing rasters
- Counting the unique values in a raster
- Resampling raster resolution
- Creating a common extent for rasters
- Adding elevation data to line vertices using a digital elevation model
- Sampling a raster dataset using a regular grid
- Creating vector contours from elevation data
- Creating an elevation hillshade
- Reprojecting a raster
- Querying the value of a raster at a specified point
- Swapping raster bands
- Counting raster bands
- Obtaining the width and height of a raster
- Getting the cell size of a raster layer
- Loading a raster layer
- Introduction
- Chapter 4. Using Raster Data
- Rasterizing a vector layer
- Performing a union on vector shapes
- Dissolving vector shapes
- Generalizing a vector layer
- Splitting a shapefile
- Merging shapefiles
- Converting a shapefile to KML
- Reprojecting a vector layer
- Deleting a vector layer attribute
- Deleting a vector layer feature
- Changing a vector layer feature's attribute
- Moving vector layer geometry
- Joining a shapefile attribute table to a CSV file
- Adding a field to a vector layer
- Adding a set of attributes to a vector layer
- Adding a polygon feature to a vector layer
- Adding a line feature to a vector layer
- Adding a point feature to a vector layer
- Creating a vector layer in memory
- Introduction
- Chapter 3. Editing Vector Data
- Loading data from a spreadsheet
- Calculating the bearing of a line
- Creating a spatial index
- Calculating the area of a polygon
- Measuring the distance along a line sample
- Measuring the distance between two points
- Buffering a feature intermediate
- Filtering a layer by attributes
- Filtering a layer by geometry
- Examining vector layer attributes
- Examining vector layer features
- Loading a vector layer from a spatial database
- Loading a vector layer from a file sample
- Introduction
- Chapter 2. Querying Vector Data
- Accessing the script path from within your script
- Storing and reading project preferences
- Storing and reading global preferences
- Creating a standalone application
- Distributing a plugin
- Creating a QGIS plugin
- Navigating the PyQGIS API
- Debugging QGIS Python scripts
- Setting up your QGIS IDE
- Using the Python ScriptRunner plugin
- Using the QGIS Python console for interactive control
- Installing QGIS for development
- Introduction
- Chapter 1. Automating QGIS
- Customer support
- Reader feedback
- Conventions
- Sections
- Who this book is for
- What you need for this book
- What this book covers
- Preface
- Support files eBooks discount offers and more
- www.PacktPub.com
- About the Reviewers
- About the Author
- Credits
- QGIS Python Programming Cookbook
- coverpage
- coverpage
- QGIS Python Programming Cookbook
- Credits
- About the Author
- About the Reviewers
- www.PacktPub.com
- Support files eBooks discount offers and more
- Preface
- What this book covers
- What you need for this book
- Who this book is for
- Sections
- Conventions
- Reader feedback
- Customer support
- Chapter 1. Automating QGIS
- Introduction
- Installing QGIS for development
- Using the QGIS Python console for interactive control
- Using the Python ScriptRunner plugin
- Setting up your QGIS IDE
- Debugging QGIS Python scripts
- Navigating the PyQGIS API
- Creating a QGIS plugin
- Distributing a plugin
- Creating a standalone application
- Storing and reading global preferences
- Storing and reading project preferences
- Accessing the script path from within your script
- Chapter 2. Querying Vector Data
- Introduction
- Loading a vector layer from a file sample
- Loading a vector layer from a spatial database
- Examining vector layer features
- Examining vector layer attributes
- Filtering a layer by geometry
- Filtering a layer by attributes
- Buffering a feature intermediate
- Measuring the distance between two points
- Measuring the distance along a line sample
- Calculating the area of a polygon
- Creating a spatial index
- Calculating the bearing of a line
- Loading data from a spreadsheet
- Chapter 3. Editing Vector Data
- Introduction
- Creating a vector layer in memory
- Adding a point feature to a vector layer
- Adding a line feature to a vector layer
- Adding a polygon feature to a vector layer
- Adding a set of attributes to a vector layer
- Adding a field to a vector layer
- Joining a shapefile attribute table to a CSV file
- Moving vector layer geometry
- Changing a vector layer feature's attribute
- Deleting a vector layer feature
- Deleting a vector layer attribute
- Reprojecting a vector layer
- Converting a shapefile to KML
- Merging shapefiles
- Splitting a shapefile
- Generalizing a vector layer
- Dissolving vector shapes
- Performing a union on vector shapes
- Rasterizing a vector layer
- Chapter 4. Using Raster Data
- Introduction
- Loading a raster layer
- Getting the cell size of a raster layer
- Obtaining the width and height of a raster
- Counting raster bands
- Swapping raster bands
- Querying the value of a raster at a specified point
- Reprojecting a raster
- Creating an elevation hillshade
- Creating vector contours from elevation data
- Sampling a raster dataset using a regular grid
- Adding elevation data to line vertices using a digital elevation model
- Creating a common extent for rasters
- Resampling raster resolution
- Counting the unique values in a raster
- Mosaicing rasters
- Converting a TIFF image to a JPEG image
- Creating pyramids for a raster
- Converting a pixel location to a map coordinate
- Converting a map coordinate to a pixel location
- Creating a KML image overlay for a raster
- Classifying a raster
- Converting a raster to a vector
- Georeferencing a raster from control points
- Clipping a raster using a shapefile
- Chapter 5. Creating Dynamic Maps
- Introduction
- Accessing the map canvas
- Changing the map units
- Iterating over layers
- Symbolizing a vector layer
- Rendering a single band raster using a color ramp algorithm
- Creating a complex vector layer symbol
- Using icons as vector layer symbols
- Creating a graduated vector layer symbol renderer
- Creating a categorized vector layer symbol
- Creating a map bookmark
- Navigating to a map bookmark
- Setting scale-based visibility for a layer
- Using SVG for layer symbols
- Using pie charts for symbols
- Using the OpenStreetMap service
- Using the Bing aerial image service
- Adding real-time weather data from OpenWeatherMap
- Labeling features
- Changing map layer transparency
- Adding standard map tools to the canvas
- Using a map tool to draw points on the canvas
- Using a map tool to draw polygons or lines on the canvas
- Building a custom selection tool
- Creating a mouse coordinate tracking tool
- Chapter 6. Composing Static Maps
- Introduction
- Creating the simplest map renderer
- Using the map composer
- Adding labels to a map for printing
- Adding a scale bar to the map
- Adding a north arrow to the map
- Adding a logo to the map
- Adding a legend to the map
- Adding a custom shape to the map
- Adding a grid to the map
- Adding a table to the map
- Adding a world file to a map image
- Saving a map to a project
- Loading a map from a project
- Chapter 7. Interacting with the User
- Introduction
- Using log files
- Creating a simple message dialog
- Creating a warning dialog
- Creating an error dialog
- Displaying a progress bar
- Creating a simple text input dialog
- Creating a file input dialog
- Creating a combobox
- Creating radio buttons
- Creating checkboxes
- Creating tabs
- Stepping the user through a wizard
- Keeping dialogs on top
- Chapter 8. QGIS Workflows
- Introduction
- Creating an NDVI
- Geocoding addresses
- Creating raster footprints
- Performing network analysis
- Routing along streets
- Tracking a GPS
- Creating a mapbook
- Finding the least cost path
- Performing nearest neighbor analysis
- Creating a heat map
- Creating a dot density map
- Collecting field data
- Computing road slope using elevation data
- Geolocating photos on the map
- Image change detection
- Chapter 9. Other Tips and Tricks
- Introduction
- Creating tiles from a QGIS map
- Adding a layer to geojson.io
- Rendering map layers based on rules
- Creating a layer style file
- Using NULL values in PyQGIS
- Using generators for layer queries
- Using alpha values to show data density
- Using the __geo_interface__ protocol
- Generating points along a line
- Using expression-based labels
- Creating dynamic forms in QGIS
- Calculating length for all selected lines
- Using a different status bar CRS than the map
- Creating HTML labels in QGIS
- Using OpenStreetMap's points of interest in QGIS
- Visualizing data in 3D with WebGL
- Visualizing data on a globe
- Index 更新時間：2021-07-23 19:49:23
