Is an OS map a topographic?
Is an OS map a topographic?
OS MasterMap® Topographic Layer is the most detailed, current and comprehensive map dataset of Great Britain. It is a large-scale, professional level, digital topographic map that is very accurate. It gives a highly detailed view of Great Britain’s landscape including individual buildings, roads and areas of land.
What is a Topography Layer?
The Topography Layer helps in the planning and management of land and property by enabling users to visualise the context of any feature or site, to pinpoint individual properties and precise sites when a high level of detail is required, and to assess the impact of a proposed development effectively and efficiently.
How accurate is OS MasterMap?
How accurate is OS MasterMap Topography Layer?
| Original survey scale | 99% confidence level | RMSE* |
|---|---|---|
| Absolute accuracy | 2.4m | 1.1m |
| Relative accuracy | +/- 2.5 m (up to 100m) | +/- 1.0 (up to 100 m) |
| 1:10 000 | ||
| Absolute accuracy | 8.8m | 4.1m |
What is Emapsite?
About Us. emapsite – mapping and data specialists, map licensing experts, plus teams of spatialising experts all on hand to help you… Maps & Data. View all Digital Maps and Data.
What is OS Open Data?
OS OpenData provides free digital maps of Great Britain, available for any purpose.
How much do OS Maps cost?
I’ve found the OS Map service easy to use and very good value for money. Subscription starts at £3.99 per month or £19.99 per year (with a recurring annual subscription that can be cancelled at any time or you can pay £25.99 without the recurring option).
Can I get OS Maps on my phone?
OS Maps is available in both a web version and an app which is available on the Google Play Store for Android and The App Store for Apple iOS (iPhone and iPad) devices.
What does the OS MasterMap sites layer do?
OS MasterMap Sites Layer provides a nationally maintained view of the detailed extents of important locations such as airports, schools, hospitals, utility and infrastructure sites and more. All the technical specifications and user guides for OS MasterMap Topography Layer, Building Height Attribute and Sites Layer.
What is BHA in OS MasterMap topography layer?
OS MasterMap Topography Layer-Building Height Attribute (BHA) Beta release is a dataset containing absolute and relative height values for buildings contained within OS MasterMap Topography Layer. Sites Layer is intended to enhance analytical use of the information contained in OS MasterMap Topography Layer.
How is GIS OS MasterMap used in GIS?
In GIS OS MasterMap can be viewed over a considerable range of scales. The most scale-sensitive feature types, such as cartographic text and symbol features, are fixed in size and rapidly become less clear at smaller display scales (that is, when zoomed out).
When to use aerial photography in OS MasterMap?
When you need the visual feel for a location, the aerial photography of OS MasterMap® Imagery Layer gives you the real-world view. Using our aerial imagery to check road markings, tree canopies or site entrances cuts down the need for site visits, so you can save money and manage time more efficiently.
Is an OS map a topographic? OS MasterMap® Topographic Layer is the most detailed, current and comprehensive map dataset of Great Britain. It is a large-scale, professional level, digital topographic map that is very accurate. It gives a highly detailed view of Great Britain’s landscape including individual buildings, roads and areas of land. What is…