Map Sheet Division (2x2 km) of Open Data Map Sheets
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This table contains data from 'Helsinki City Environment Sector' obtained from the website. The data represents the distribution of 2x2 km map sheets. It includes various attributes such as extraction date, row number, unique identifier, sheet code, sheet size, coordinates, index values, municipality area, surface area, creation date, data modification status, modification date, owner information, historical data presence, data creator, geographic data in GeoJSON format, geotext, geometric type, centroid coordinates, centroid x-coordinate, centroid y-coordinate, and the complete geometric information. The table provides valuable information for data analytics purposes such as analyzing trends in map sheet distribution, identifying variations in sheet sizes, examining changes in geometry types, comparing surface areas across different sheets, and studying historical data presence in the municipality area. The data is specific to Finland, which has the ISO country code 'fi'.
Field Descriptions
| Name |
Data type |
Description |
| _extract_date | date | The date when the data was extracted. |
|---|
| _row_number | long | The row number of the data entry. |
|---|
| id | int | The unique identifier for each entry. |
|---|
| tunnus | string | The identifier for the entry. |
|---|
| lehtikoko | int | The size of the leaf. |
|---|
| lehtikoko0 | int | The size of the leaf as an alternative representation. |
|---|
| koordinaat | int | The coordinate of the entry. |
|---|
| koordinaa0 | int | The coordinate of the entry as an alternative representation. |
|---|
| km_indeksi | int | The kilometer index of the entry. |
|---|
| km_indeks0 | int | The kilometer index of the entry as an alternative representation. |
|---|
| km_alainde | string | The sub-index of the kilometer entry. |
|---|
| kunnan_alu | string | The municipality area of the entry. |
|---|
| pintaala | string | The surface area of the entry. |
|---|
| luonti_pvm | string | The creation date of the entry. |
|---|
| data_muokk | string | The data modification information. |
|---|
| muokkaus_p | string | The modification date of the entry. |
|---|
| omistaja | string | The owner of the entry. |
|---|
| historia_p | string | The historical information of the entry. |
|---|
| data_luoja | string | The creator of the data entry. |
|---|
| geom_geojson | string | The geometry data of the entry in GeoJSON format. |
|---|
| geom_geotext | string | The geometry data of the entry in Geotext format. |
|---|
| geom_type | string | The type of geometry of the entry. |
|---|
| geom_centroid | string | The centroid position of the geometry. |
|---|
| geom_center_x | double | The x-coordinate of the center of the geometry. |
|---|
| geom_center_y | double | The y-coordinate of the center of the geometry. |
|---|
| geom | binary | The geometry data of the entry. |
|---|
