Lists are made up of values of type Vertex, and the centroid will beįor the common use case of spawning a number of turtles inside theĪlso be used if you don't want the spawned turtles to take on The first and last vertex of the list will be the same. Vertex list will represent one 'ring' of the polygon, and Vertices of a line that makes up that feature. For line data, each vertex list will represent the For point data, each vertex list will be a Property value by name, ask it for its centroid (center of gravity),Īnd ask for a subset of a given agentset whose agents intersect the VectorDataset: ask it for a list of vertex lists, ask it for a There are also several things you can do with a VectorFeature from a The values of a particular property of the dataset's features toįor the common use case of converting a VectorDataset of points intoĪ corresponding set of turtles with the same attributes, the If the VectorFeatures are polygons, you can also apply ('*', which matches any number of occurrences of anyĬharacters). Range, or matches a given string using wildcard matching Than or greater than a particular value, or lies within a given List of VectorFeatures whose value for a particular property is less VectorFeatures in the dataset, search for a single VectorFeature or 'envelope' (bounding rectangle), ask for a list of all The names of the properties of its features, ask it for its There are several things you can do with a VectorDataset: ask it for A single VectorDataset may contain only one of the three Of which is a point, line, or polygon, along with a set of property Reports either a VectorDataset or a RasterDataset, depending on whatĪ VectorDataset consists of a collection of VectorFeatures, each one

Once the coordinate system is defined, you can load datasets using Projection, regardless of what that projection is. prj file is found, theĮxtension will assume that the dataset already uses the current prj file that describes the projection or geographic coordinate They are loaded, as long as each of your data files has an associated Which case datasets will be re-projected to match that projection as You may also optionally define a projection for the GIS space, in See GIS GeneralĮxamples for an example of this technique. That directly to the bounds of the NetLogo world. Or bounding rectangles of all of your datasets in GIS space and map The easiest way to define a transformation between GIS spaceĪnd NetLogo space is to take the union of the 'envelopes' In general, you first define a transformation between GIS data spaceĪnd NetLogo space, then load datasets and perform various operations Shapefile, but is supported as an interchange format by most GIS The extension supports raster data in the form of ESRI ASCII Gridįiles. The shapefile (.shp) and GeoJSON (.geojson) formatsĪre the most common format for storing and exchanging vector GIS data. The extension supports vector data in the form of ESRI shapefiles and Lines, and polygons), and raster GIS data (grids) into your model.

It provides the ability to load vector GIS data (points, This extension adds GIS (Geographic Information Systems) support to If compilation succeeds, gis.jar will be created.

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