Geomark Attributes
The following table describes the attributes of a geomark returned from the download geomark resources.
| Attribute Name | Description |
|---|---|
| id | The unique identifier of the geomark |
| url | The URL to the HTML page describing the geomark and supported output formats |
| geometryType | The type of geometry contained in the geomark |
| numPolygons | The total number of geometry parts in the geomark |
| numParts | The total number of geometry parts in the geomark |
| createDate | The date the geomark was created |
| expiryDate | The date the geomark will expire and be deleted, or null if this geomark is registered with a BC Government application and will be kept as long as it remains registered. |
| minX | The minimum x (east) of the geomark's bounding box |
| minY | The minimum y (south) of the geomark's bounding box |
| maxX | The maximum x (north) of the geomark's bounding box |
| maxY | The minimum y (north) of the geomark's bounding box |
| centroidX | The x coordinate of the centroid of the geomark's geometries |
| centroidY | The y coordinate of the centroid of the geomark's geometries |
| numVertices | The total number of vertices from the geomark's geometries (including holes) |
| length | The total length in metres of the geomark's geometries |
| area | The total area in square metres of the geomark's geometries |
| isValid | Flag indicating if the geometry is valid acording to the OGC simple feature specifications. |
| validationError | Description of the validation error if the geometry is valid acording to the OGC simple feature specifications. |
| isSimple | Flag indicating if the geometry is simple acording to the OGC simple feature specifications. |
| isRobust | Flag indicating if coordinates of the geometry are less than the tolerance away from the edges of the geometry. |
| minimumClearance | The Minimum Clearance is a measure of what magnitude of perturbation of the vertices of a geometry can be tolerated before the geometry becomes topologically invalid. |