Related Experiment Video
Updated: Dec 13, 2025

16:17
The ITS2 Database
Published on: March 12, 2012
32.0K
Salzburg Database of Polygonal Data: Polygons and Their Generators
Günther Eder1, Martin Held1, Steinþór Jasonarson1
1Universität Salzburg, FB Computerwissenschaften, Salzburg, Austria.
Data in Brief
|August 4, 2020
Summary
The Salzburg Database offers a collection of polygonal areas for research. This database includes polygons with and without holes, featuring edge weights, and is publicly accessible.
Area of Science:
- Computational geometry
- Data structures
- Geometric modeling
Background:
- The need for standardized datasets in geometric research.
- Challenges in generating complex polygonal shapes.
Purpose of the Study:
- To introduce the Salzburg Database, a novel repository of polygonal areas.
- To describe the methods used for generating these polygons.
- To ensure public accessibility of the database and its generators.
Main Methods:
- Development of algorithms for generating polygonal areas with varying complexity (e.g., holes).
- Assignment of positive weights to all polygon edges.
- Implementation of source codes for polygon generation.
Main Results:
- A comprehensive database of polygonal areas, including diverse classes and sizes.
- Availability of source codes for all polygon generators.
- Publicly accessible repository of generated polygons.
Conclusions:
- The Salzburg Database provides a valuable resource for researchers in computational geometry and related fields.
- The open availability of generators and data promotes reproducibility and further research.
Related Concept Videos
GIS Software, Hardware, and Sources of GIS Data
535
A Geographic Information System (GIS) combines specialized software and hardware to effectively manage, analyze, and present spatial and related data. GIS software includes critical functionalities such as a user interface for easy navigation, database management tools for handling spatial and attribute data, and data retrieval features for efficient access. Analytical tools transform raw data into insights, while display functions produce maps and reports in various formats for effective...
535
Selected Data About Geographic Locations
182
Geographic Information Systems (GIS) rely on two core types of data: spatial data and attribute data.Spatial DataSpatial data defines the physical location of features within a coordinate system, typically expressed in terms of latitude and longitude. It provides precise positioning for elements like roads, rivers, or buildings.Attribute DataAttribute data complements spatial data by adding descriptive information about these features. For example, a road's spatial data includes its start and...
182
Ogive Graph
6.4K
An ogive graph is sometimes called a cumulative frequency polygon. It is one type of frequency polygon that shows cumulative frequency. In other words, the cumulative percentages are added to the graph from left to right. An ogive graph plots cumulative frequency on the vertical y-axis and class boundaries along the horizontal x-axis. It’s very similar to a histogram; only instead of rectangles, an ogive displays a single point where the top right of the rectangle would be. Creating this...
6.4K
Gauss's Law: Planar Symmetry
9.1K
A planar symmetry of charge density is obtained when charges are uniformly spread over a large flat surface. In planar symmetry, all points in a plane parallel to the plane of charge are identical with respect to the charges. Suppose the plane of the charge distribution is the xy-plane, and the electric field at a space point P with coordinates (x, y, z) is to be determined. Since the charge density is the same at all (x, y) - coordinates in the z = 0 plane, by symmetry, the electric field at P...
9.1K
Hückel's Rule Diagram of π MOs: Frost Circle
5.3K
The Frost circle or the inscribed polygon method is a graphical method for determining the relative energies of π molecular orbitals (MOs) for planar, fully conjugated, and monocyclic compounds. This method was first described by A. A. Frost and Boris Musulin in 1953.
A Frost circle is constructed by drawing a polygon whose number of edges is equal to the number of carbons of the given cyclic system, with one of the vertices pointing down. Then, a circle is drawn enclosing the polygon so that...
A Frost circle is constructed by drawing a polygon whose number of edges is equal to the number of carbons of the given cyclic system, with one of the vertices pointing down. Then, a circle is drawn enclosing the polygon so that...
5.3K
Theorems of Pappus and Guldinus: Problem Solving
967
Pappus and Guldinus's theorems are powerful mathematical principles that are used for finding the surface area and volume of composite shapes. For example, consider a cylindrical storage tank with a conical top. Finding the surface area or volume can be challenging for such complex shapes. These theorems are particularly useful in calculating the volume and surface area of such systems. Here, the cylindrical storage tank with a conical top can be broken down into two simple shapes: a...
967

