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IMPROVING PATH QUERY PERFORMANCE IN PGROUTING USING A MAP GENERALIZATION APPROACH
pgRouting Road Networks Skeletal Model Skeleton Shortest Path Map Generalization Zones Path Computation
2018/11/8
pgRouting library provides functions to compute shortest path between any two points of a road network which is of great demand and also a topic of interest in the field of GIS, graph theory and trans...
A MODEL STUDY OF SMALL-SCALE WORLD MAP GENERALIZATION
Global map Map generalization Improved model Cross-platform symbol Automatic map-making knowledge engine
2018/5/11
With the globalization and rapid development every filed is taking an increasing interest in physical geography and human economics. There is a surging demand for small scale world map in large format...
Road Data Updating Using Tools of Matching and Map Generalization
Map Generalization Updating Road Data Matching Selective Omission
2015/12/16
It is one of the important ways for GIS data updating based on map generalization. This paper analyzes the main steps for road data updating based on map generalization. As the core of this updating p...
Animating Basic Operations for Digital map Generalization with Morphing Techniques
Cartography Generalization Visualization Morphing Animation
2015/12/2
This paper describes an animation for multi-scale representation of spatial data. More specifically, morphing technique is employed to animate the operations for the geometric transformations in digit...
The Evaluation of Spatial Distribution Density in Map Generalization
Cartography Generalization Computer Vision Spatial modeling Quality control
2015/12/2
Spatial distribution density is an important constraint in map generalization, which acts on a group of objects at meso level or a whole thematic class at macro level. However, the spatial distributio...
RESEARCH ON THE ATTENUATION RULE OF MAP INFORMATION IN MAP GENERALIZATION
map generalization Information attenuation GIS spatial information key-scale extended fractal
2015/8/10
With the development of the technique of multiple dimension GIS databases, the problem of the key-scale becomes an important technical problem. The paper presents a new method about how to determine t...
DELAUNAY TRIANGULATION PARALLEL CONSTRUCTION METHOD AND ITS APPLICATION IN MAP GENERALIZATION
Delaunay Triangulated Irregular Network parallel computing data partitioning dynamic strip mesh simplification
2014/4/25
Delaunay triangulated irregular network (D-TIN) has been widely used in various fields and also played an increasingly important role on map generalization. But for massive data processing, current D-...
AN UPDATING PRODUCTION LINE SYSTEM FOR NATIONAL TOPOGRAPHICAL DATABASE AT 1:50K OF CHINA BASED ON DIGITAL MAP GENERALIZATION
Geospatial data updating Digital map generalization Rule Multi scale Production system
2014/4/28
This paper is focused on applying digital map generalization into the updating of geo-spatial database from large scale in the
collaborative updating environment for SDI, an updating production line...