Map Information and GIS

Map comparison in GIS

Determining the structure and map of vegetation of Mirabad protected area (Iran) using DEM and Geographic Information Systems (GIS)

The Mirabad protected area (S. Azarbaijan, Iran) has a variety of ecological nurseries due to elevation of the sea, physiographic factors, micro-climates and soil types, and has high vegetation diversity. Mirabad protected area in the Piranshahr-Sardasht axis is between the latitudes of 36° 23' and 36° 31' north, and the lengths 45° 15' and 45° 25', with an area of ​​11435 ha, in the elevation ...

Gis Components and Map Visualization Objects*

In component-based WebGIS, map visualization objects are cornerstones in developing applications. From constructing user interfaces, displaying maps and human-computer interactions to displaying query results and making subject maps, almost all developing work is based on map visualization objects. In this paper, a component-based WebGIS system Geo-Union is introduced, which is built by COM/DCO...

Sketch Map Analysis Using GIS Buffer Operation

We developed a method to analyze sketch maps by GIS, and applied it to an actual case study. We found that analysis using buffer operation was more effective for sketch map analyses than other methods, such as the entire road length method and area method. After modeling the buffer method, an experimental study of the micro-genetic cognitive process was conducted on sketch maps from Japanese st...

Geographic Information Science ( GIS )

Figure 5: Data modeling from the real world to a database, and from there to digital cartographic models and analogue products for visualization.. Figure 20: Sample (a) region, (b) its binary array, (c) its maximal blocks, and (d) the corresponding quadtree (after SAMET 1990a). IX he first textbook on GIS was published in 1986. Today, we can find dozens of books dealing with GIS. Yet, it is dif...