Convert KML to Geopackage
Use this tool to convert KML to Geopackage with various options such as Geometry Type, Projections, Line separator, etc.
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What is KML?
A KML (Keyhole Markup Language) file is an XML-based file format used for representing geographic data in three-dimensional earth browsers, such as Google Earth, Google Maps, and various GIS software. KML files can contain a variety of spatial data types, including points, lines, polygons, images, and text annotations, allowing users to visualize and interact with geospatial information.
Here's a breakdown of the key components typically found in a KML file:
- Document Structure: The root element of a KML file is <kml> which contains the <Document> element. Inside the <Document> element, you can include various elements representing geographical features.
- Geographical Features: KML supports different types of geographical features such as:
- <Placemark>: Represents a single point, line, or polygon feature.
- <Point>: Represents a single point.
- <LineString>: Represents a sequence of connected line segments.
- <Polygon>: Represents a closed shape with three or more sides.
- <GroundOverlay>: Represents an image overlay draped onto the ground.
- <ScreenOverlay>: Represents an image overlay fixed to the screen.
- <NetworkLink>: Allows the inclusion of content from the web.
- Styling: KML allows styling of features using <Style> elements. Styles can define attributes such as color, line width, and icon images.
- Metadata: KML files can contain metadata such as name, description, and custom properties associated with each feature.
- Hierarchy: KML files can be organized in a hierarchical structure. Features can be grouped within folders using the <Folder> element.
Overall, a KML file provides a structured way to represent geographic data along with associated metadata and styling information, making it widely used for sharing and visualizing spatial information across different platforms and applications.
What is GeoPackage?
A GeoPackage file is a type of spatial data container that can store various types of geographic data including vector data (points, lines, polygons), raster data (images), and metadata. It is an open standard format developed by the Open Geospatial Consortium (OGC) and is designed to be a lightweight, portable, and interoperable format for exchanging geographic information.
Key features of a GeoPackage file include:
- SQLite-Based: GeoPackage files are based on SQLite, a popular embedded database engine. This allows GeoPackage files to be self-contained and portable, as SQLite is widely supported across different platforms and programming languages.
- Multiple Data Types: GeoPackage files can contain multiple layers of vector and raster data, as well as associated metadata. This makes it suitable for storing complex geographic datasets with different types of information.
- Support for Spatial Indexing: GeoPackage files support spatial indexing, which enables efficient spatial queries and operations on geographic data. This indexing mechanism enhances the performance of data retrieval and analysis.
- Tile Pyramid Structure: GeoPackage files can store raster data in a tile pyramid structure, which is a hierarchical organization of tiles at different zoom levels. This allows for efficient display of raster data, particularly in web mapping applications.
- Interoperability: GeoPackage files adhere to open standards defined by the OGC, ensuring interoperability with other GIS software and systems that support the GeoPackage format. This promotes data sharing and collaboration among different users and organizations.
Overall, GeoPackage files provide a flexible and efficient way to store, exchange, and analyze geographic data, making them well-suited for a wide range of applications in geospatial technology.