It means if you have data with 5 points of interest ( POI), 10 roads, and 5 buildings, it is in total 20 vector features. Vector feature in our terminology means one node/vertex, one line/edge, or one polygon. It’s good to be aware of those data types and select them carefully. Based on the nature of the data, it can be an integer, floating-point number, short text string (varchar), long text, date, time, and many more. Attribute types are also limited (they are derived from database data types). The attributes depend solely on the dataset creator and his needs. For example, for a road object (which is represented as line geometry), we can add further attribute values, such as road ID, owner, or last date of snow cleaning. They are usually stored in the database table structure. For example, you can represent a river stream with linear geometry as well as the area between two banks has to be represented using polygon geometry.Īttribute values are further information about the object, we want to model. Sometimes you have to combine all three geometries in order to get the best representation of an object. Polygons do represent areal objects, like buildings, forests, crop fields, and so on. Linear objects, such as roads, highways, electric wires, and similar are presented with simple line geometries. Point geometry represents objects, which do occupy single spots, such as lamps, traffic lights, single trees, bus stops, and similar. The most commonly used types of geometries are the points, lines, and enclosed lines - polygons.
Geometry is the geographical representation of an object. Actual numbers can be seen in the pricing table. The limit for vector features varies in a different version of MapTiler Desktop. Vector features usually have two parts: geometry and database attributes. 213 Leaflet API, 225 MapTiler, 213 non-GIS data creation applications.
Maptiler vector how to#
This article will show you what the attributes of vector features are and how to utilize them. 209 SVG, 206, See also Scalable Vector Graphics Web map production tools, 2.
0 kommentar(er)
