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Testing of altitude accuracy of GIS GPS devices
Žďánský, Radek ; Čábelka, Miroslav (advisor) ; Bayer, Tomáš (referee)
This work is about testing altitude accuracy of GIS GPS receivers Trimble Juno SC and Trimble GeoExplorer 6000 GeoXH. The introduction is dealing with general topics connected with satellite navigation and describes individual global navigation satellite systems. A Separate chapter is dedicated to factors influencing surveying accuracy. The Main section of this work consists of gathering and processing of data gathered from surveying at point with known coordinates and from surveying of an appropriately chosen track. Followed by measurement of chosen leveling program using technical leveling, surveying by GIS GPS receivers was made at chosen points of this leveling program, data gathered from both methods were compared. The results are shown in graphical outputs, where their individual accuracy and suitability for chosen surveying jobs is being discussed.
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Geomorphological contour interpolation over triangulated irregular network
Morávek, Andrej ; Bayer, Tomáš (advisor) ; Čepek, Aleš (referee)
The aim of this master thesis is to create an application to generate smooth contours with the method of non-linear, so-called geomorphological interpolation over triangulated irregular network using patch technique. The introductory part consists of the state of art in the field of patch modelling and description of georelief in the form of digital terrain models. The core of the work comprises the mathematical background of Bézier triangle patches using barycentric coordinates and interpolation techniques with definition of continuity. The main contribution is a proper algorithm of balanced patch smoothing in order to generate smooth contours as form of georelief representation. Description of linear contour interpolation over triangulated irregular network as a method of indirect geomorphological interpolation is also part of the core. Finally, the last part describes the implementation of algorithms that forms the application, presents and evaluates the results on synthetic and real data.
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Development cartographic means of expression for representing castles on old maps of the Bohemia
Neckář, Petr ; Bayer, Tomáš (advisor) ; Grim, Tomáš (referee)
Development cartographic means of expression for representing castles on old maps of the Bohemia Abstract This thesis examines the development of cartographic means of expression that are used for the display of castles, palaces, strongholds and ruins on the old maps of Bohemia in the period from the early 16th century to early 18th century. The work evaluates the positional inaccuracies of location of interest sites through cartometric analysis. The first part is theoretical, in which the issues outlined cartographic semiotics and cartographic expression. Next two parts deal with the oldest cartographic references of the Bohemia, or the description of the analyzed maps. Further, the thesis illustrated the method by which the analysis are extracted. The chapter summarizes contains results of findings. Keywords: old maps of Bohemia, signs for castles, cartographic semiotics, cartometric.
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Analysis of extensiveness of the ruins in the Czech Republic
Šudová, Markéta ; Bayer, Tomáš (advisor) ; Čábelka, Miroslav (referee)
Analysis of extensiveness of the ruins in the Czech Republic Abstract This bachelor thesis deals with the analysis of extensiveness of 15 selected largest ruins in the Czech Republic by means of designed geometric criteria. The analysis of the current state (a ruin) and historical state (a castle) on the basis of a combination of several maps (Orthophoto CR, large-scale geodetic plans from the National Heritage Institute and drawings of ruins from historical publications) was carried out with the use of software ArcGIS. Based on these vector data, the basic criteria (total area, circumference and length of defensive walls) as well as complementary criteria (built-up area, core area, area of outer bailey, area of courtyard and area of barren soil) are analysed by which the extensiveness of a ruin is expressed. The evaluation of numerical results of individual criteria in relation to a current or historical state as well as the finding of the most extensive ruins based on these criteria represent outcome of the thesis. Keywords: analysis, castle, ruin, ArcMap, extensiveness, vastness, criteria, map, plan, cartography
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Automatized map similarity analysis using shape invariants
Soukup, Matěj ; Bayer, Tomáš (advisor) ; Lysák, Jakub (referee)
Automatized Map Similarity Analysis Using Shape Invariants Abstract This diploma thesis is focused on using shape similarity measures for automatized map comparison. Maps can vary e.g. in the reference scale, coordinate system, rotation, degree of generalization, map content or accuracy of depiction of individual objects. The main part of the thesis deals with finding identical objects on both map layers and their matching using shape invariant turning function and other methods based on object location. These methods are tested on specific maps and compared with each other. The specific combination of methods is proposed and used for matching objects. After that the maps are compared to each other from several different perspectives. The proposed algorithm is implemented in Python programming language. Keywords: map similarity, shape similarity, similarity measures, turning function
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Representation of time in cartographic works on the example of maps of historical battles
Vít, Lukáš ; Bláha, Jan Daniel (advisor) ; Bayer, Tomáš (referee)
Representation of time in cartographic works on the example of maps of historical battles Abstract This study contains an in-depth analysis of possible graphical presentation of the fourth cartographic dimension (time) and utilizes the acquired findings in prototypical animated maps of historical battles. The initial chapter reflects cartography in general, later, the area of animated maps is in focus. The first part of the text is dedicated to the connection of cartography and time. Practical means of time representation are described. Further, a recommended general pattern is specified for design and development of time legend, so that time presentation suits the nature of the depicted theme. Consecutively, this general pattern is applied to a set of pieces of cartographical work depicting (historical) battles. The tangible result of this work is an interactive cartographic animation presenting the battle of Gettysburg and preceding events. Keywords: time, cartography, temporal legend, animated map, battle
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Feature-based multi-resolution topography
Brůha, Lukáš ; Bayer, Tomáš (advisor) ; Bodum, Lars (referee) ; Bandrova, Temenoujka (referee)
A three-dimensional (3D) representation of the topographic surface is an important element in planning, civil engineering and mapping. Many state-of-the-art representa- tions provided graphical, 3D model of entire planet. However, the existing solutions to 3D topographic surface lack the geometric flexibility and accuracy on boundaries with models of other geographic features. Most of the contemporary approaches to digital Earth solutions focus on the visualization performance. The high visual performance is achieved by the use of special data structures optimized for rendering. However, this optimization towards visualization hampers the data management of spatial data, their analysis and distribution. Therefore, the introduced solution reflects on multiple requirements of digital Earth systems. In addition to the visualization performance, the requirements regarding data interoperability, data management and distribution, data analysis and the multiple level of detail (LOD) are considered as essential for the design of the new solution. The topographic surface is central to the proposed method. It provides the defining surface in terms of which other features can be geographically referenced to. Therefore, this work introduces a new, more functional data representation of multi-resolution...
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The North America in Early Maps
Jílková, Petra ; Bayer, Tomáš (advisor) ; Chrást, Josef (referee)
The North America in Early Maps Abstract The objective of this thesis is to analyze selected map works of European cartographers h showing the territory of North America in the period from 16. to 19. century. Using the cartometric and semiotic methods the map attributes are analyzed focusing the detection and description of the cartographic projection. Next, within the analysis of the topographic content the map symbols and the language of the map are discussed and interesting geographical mistakes of the authors are noticed. On the basis of the partial analyzes the progression of the continent depiction is documented with emphasis on the progression of map symbols and on the change of the shape of the continent in the given period. Key words: North America, cartometry, semiotics, European cartography, discovery, detectproj
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The analysis of road and highway network development in 20th century decades with the use of GIS
Churaň, Radek ; Hudeček, Tomáš (advisor) ; Bayer, Tomáš (referee)
The analysis of road and highway network development in 20th century decades using GIS Abstract The goal of this work is to review the progression of road network during 20th century together with creating of vector layers for each year. In opening part the background research is made. It refers to historical roads development in Czech republic and to GIS tools, which have been used. Textual description of road network development is part of the work together with maps supplement, illustrating contemporary situation. Digital geodatabases are the important output of this work. Keywords: road network, highway development, digital geodatabase
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