Vicmap Geomark REST API

The Geomark datasets are spatial reference files that describe the feature, its location and its name. Examples of the types of features included in these datasets are: rivers, water bodies, railway lines, parks, airports, hospitals, education centres, emergency facilities, sport facilities, mountains, transport infrastructure, power facilities and community venues (but not road names). The data contained within the individual Geomark datasets has been sourced from Vicmap Elevation, Vicmap Hydro, Vicmap Features of Interest and Vicmap Transport. The difference between the features in these Vicmap datasets and Geomark is that the Geomark features have been combined to create one piece of geometry based on its name and type.GEOMARK_POINT : A statewide point dataset containing information for “named” or “could be named” features. Points represent relatively small area features that have been generalised or larger features where the spatial source is a coordinate or an address. Examples of small area point entities include wind turbines, snow poles, and emergency markers.GEOMARK_LINE : A statewide line dataset containing information for “named” or “could be named” features. Linear features include rivers, power lines, chairlifts and pipelines among others.GEOMARK_POLYGON : A statewide polygon dataset containing information for “named” or “could be named” features. Polygons represent larger area features that have been captured in more detail. Examples include lakes, sports grounds, gardens, parks and shopping precincts. GEOMARK_INDEX_CENTROID : A statewide centroid dataset holding one centroid record for each feature (unique feature id) held within the Geomark Index Extent table. GEOMARK_INDEX_EXTENT : A statewide polygon dataset holding one polygon or multi part polygon record for each feature (unique feature id) held within the Geomark Point, Line and Polygon tables. Note: point and line features are represented as polygons.

Geomark数据集是一类空间参考文件，用于描述地理要素的特征、空间位置与名称。该类数据集包含的要素类型示例包括：河流、水体、铁路线路、公园、机场、医院、教育机构、应急设施、体育场馆、山地、交通基础设施、电力设施以及社区场所（不含道路名称）。各独立Geomark数据集的数据源为维克地图高程数据集（Vicmap Elevation）、维克地图水文数据集（Vicmap Hydro）、维克地图兴趣点数据集（Vicmap Features of Interest）以及维克地图交通数据集（Vicmap Transport）。上述Vicmap数据集与Geomark数据集的要素差异在于：Geomark数据集会依据要素的名称与类型对其进行合并，最终生成单一几何对象。

GEOMARK_POINT：该数据集为全州范围的点要素数据集，存储"已命名"或"可命名"地理要素的相关信息。其点要素用于表示经过概化处理的小面积地理实体，或以坐标/地址作为空间数据源的大面积地理实体。小面积点实体示例包括风力发电机、雪杆与应急标识。

GEOMARK_LINE：该数据集为全州范围的线要素数据集，存储"已命名"或"可命名"地理要素的相关信息。线状要素示例包括河流、电力线路、缆车线路与管道等。

GEOMARK_POLYGON：该数据集为全州范围的面要素数据集，存储"已命名"或"可命名"地理要素的相关信息。其面要素用于表示采集精度更高的大面积地理实体，示例包括湖泊、运动场、花园、公园与商业街区等。

GEOMARK_INDEX_CENTROID：该数据集为全州范围的质心数据集，为Geomark索引范围表中存储的每个拥有唯一要素ID的地理要素生成一条质心记录。

GEOMARK_INDEX_EXTENT：该数据集为全州范围的面要素数据集，为Geomark点、线、面要素表中存储的每个拥有唯一要素ID的地理要素生成一条面要素或多部分面要素记录。注意：点要素与线要素均以面要素的形式进行表示。