I’veposted beforeabout absolute positional accuracy issues in Google Earth. The Google Earth coordinates corresponding to a feature on the earth can be off from the true coordinates of the feature, about 30 feet in my neck of the woods. With the new Google Maps “My Maps” feature, I was...
historical GiSThe measurement and management of positional accuracy and positional uncertainty is especially problematic in historical cartography and Historical GIS applications, for at least two reasons: first, historical sources, and especially historical maps, generally carry a higher degree of positional...
Java net.opengis.gml.v_3_1_1.AbstractPositionalAccuracyType类属于net.opengis.gml.v_3_1_1包。使用说明:位置误差估计(或精度)数据。Java-Klasse für AbstractPositionalAccuracyType 复杂类型。Das folgende Schemafragment gibt den erwarteten Content and der in dieser Klasse enthalten ist。本文搜集整理了...
This makes it possible to identify the level of simplification that eliminates the largest number of vertices while still attaining a specific positional accuracy standard. A simple implementation strategy is described in which an optimal level of simplification is identified and simplification is applied...
Modelling Positional Uncertainty of Line Primitives in GIS In this paper, the positional uncertainty models of point and lineprimitives in GIS are made. On the basis of this, a set of accuracy indicators forpoint a... D Li,M Peng,J Zhang - 《Journal of Wuhan Technical University of Surveyi...
With the exploration of gas hydrate in China going forward to the phase when field test drilling is carried out,the accuracy of navigation and positioning has to be improved to identify gas hydrate more accurately and describe its outer conformation and distribution characteristics more precisely so ...
objects in the universe. These representations contain generalization errors. Line simplification is the most commonly applied generalization process in commercial geographical information system (GIS) software packages (Veregin and Dai, 1999). The positional accuracy of the digital map resulting froma...
Assessing the positional accuracy of spatial data in GIS environmentNo article summary includedM. CAPRIOLIE. TARANTINOScientific and Technical Program Committee5 of the International Cartographic Conference
GIS空间数据定位误差模型We know that Line and polygon can be expressed by their feature points because point is the fundamental feature in vector GIS. Because only digital accuracy of point data is defined in the International Geographic Information System(GIS) data quality standard system, so this...
Open GIS and statistical programming software were used in combination, and then using the second one as a standalone. Considerations introduced in order to correct two inconveniences of the method are presented. The paper concludes discussing hypotheses regarding positional accuracy and identifying ways...