Polygon Layer with Land Areas: Attribute and Geometry Data
Click here for a data sample
The 'land20y' table is part of a data collection and consists of various columns that hold significant information. It records the date when the data was extracted, a unique row number, category codes for land areas, and extensive geographical data. The geographical data includes geometric data in geojson and geotext formats, the type of geometric shape, and the coordinates of the geometric shape's centroid and center. The data in this table is sourced from 'Lantmäteriet' in Sweden and the geographical information is transformed from the shapefile format into the final geographic format. This table can be utilized in various ways in data analytics. For instance, the category codes can be used to classify different land areas for ecological studies or urban planning. The geographical data can be used to create detailed maps or to conduct spatial analyses, such as determining the proximity of certain land areas to specific geographical features or assessing the spatial distribution of certain types of land. The extraction date information can be used to track changes over time, which would be particularly useful in environmental monitoring or land use planning.
Field Descriptions
| Name |
Data type |
Description |
| _extract_date | date | This column records the date when the data of the respective row was extracted from the source. It helps in tracking the timeline of data extraction. |
|---|
| _row_number | long | This column contains the row number in the data extracted from the source on the respective extract date. It helps in uniquely identifying each row in combination with the '_extract_date' column. |
|---|
| KKOD | string | This column contains a category code. It is used to categorize the respective row of data. |
|---|
| geom_geojson | string | This column contains the geometric information of land areas in GeoJSON format. It helps in visualizing and analyzing the spatial characteristics of the land areas. |
|---|
| geom_geotext | string | This column contains the geometric information of land areas in text format. It complements the 'geom_geojson' column by providing another format for representing the spatial data. |
|---|
| geom_type | string | This column specifies the type of the geometric figure used to represent the land area. It assists in understanding the spatial structure of the land areas. |
|---|
| geom_centroid | string | This column contains the centroid point of the geometric figure representing the land area. It helps in identifying the central point of the land area. |
|---|
| geom_center_x | double | This column contains the X-coordinate of the central point of the geometric figure representing the land area. It assists in the spatial analysis of the land areas. |
|---|
| geom_center_y | double | This column contains the Y-coordinate of the central point of the geometric figure representing the land area. It aids in the spatial analysis of the land areas. |
|---|
