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Understanding the mobility of entities in geospatial data is important to many fields, ranging from the social sciences to epidemiology, economics or air traffic control. Visualizing such entities can be challenging as it requires preserving both their explicit properties (spatial trajectories) and their implicit properties (abstract attributes of those trajectories). An existing technique called origin–destination maps preserves both explicit and implicit properties of datasets, using the spatial nesting technique. In this paper, we aim at generalizing this technique beyond an origins-and-destinations dataset (2-attribute datasets), to explore multi-dimensional datasets (N-attribute datasets) with the nesting approach. We present an abstraction framework – we call Gridify – and an interactive open-source tool implementing this framework using several levels of nested maps. We report on several case studies representative of the types of dimensions found in geospatial datasets (quantitative, temporal, discrete, boolean), showing the applicability of this approach to achieve visual exploratory analysis tasks in various application domains. [ABSTRACT FROM AUTHOR]

Mobile phone location datasets offer opportunities to conduct spatial analysis at very granular levels. In most jurisdictions their collection and use are subject to legal requirements to protect the privacy of the individuals generating the data and to prevent its disclosure. However, it can be the case that geographically referenced datasets, which meet the legal and statistical requirements of non-disclosure, reveal much more when they are plotted on a map. This paper provides an overview of the particular ethical challenges posed to mapmakers by mobile phone location data, whilst keeping in mind the potential benefits of harnessing these data to inform research and public policy. We identify the principal ethical concern pertaining to the use of such location datasets: preventing disclosure and protecting privacy, but also considering the spatial and socio-political contexts that the data are collected and produced from. We then discuss case studies that highlight the context-specific considerations necessary to create ethical maps from sensitive location datasets, and offer experience-based recommendations for users considering the ethical implications of using mobile phone location data in research. [ABSTRACT FROM AUTHOR]

The linking of printed material to digital forms of interaction, which is currently increasingly being done through the implementation of image recognition software, for example, on smartphones, opens new perspectives for the use of maps. The cartographic integration of Quick Response (QR) codes has turned out to be particularly advantageous for digital information transfer due to the easy creation of QR codes, the broad use of the readers, and the map users' familiarity with QR codes. The example of an edited university site plan shows how paper maps can be thematically enriched by means of QR codes. [ABSTRACT FROM AUTHOR]

This paper presents a novel approach to assessing the geometry of objects using Hu's invariants in the context of cartographic generalization. The primary focus is to improve the generalization process and produce more readable and informative maps. The study demonstrates the applicability and effectiveness of the modified invariant moment M1* in evaluating regular shape similarity. Experiments, based on 24 shapes, exhibit greater stability in the results and reveal the high suitability of this moment in the investigation and classification of buildings, among other generalization processes. The efficiency of the proposed method is compared to previous generalization techniques, showing a significant improvement in the generalization process. In conclusion, this research contributes to the development of cartographic generalization methods by introducing the use of Hu's invariants for evaluating object geometry. This approach can improve the automation of map generalization processes and more effective communication of geographic information. [ABSTRACT FROM AUTHOR]

The Southern Baptist cartographic style portraying Yorùbáland in the mid-nineteenth century shifted the graphic appearance of this geographical space. This paper asserts that this graphic appearance reflects the evangelical thought of spreading the gospel and marked a very significant transition in the visual portrayal of West-Central Africa. Employing an historical-stylistic analysis, this paper examines the Christian missionary contribution to the appearance of the Yorùbá landscape in nineteenth-century maps. The Southern Baptist missionary maps of the 1850s, resulting from evangelical discourses and missionary work, highlighted geographical features that gave a new landscape identity to Yorùbáland. The map design of this ethno-territorial space emphasises an evangelical concern for well-populated regions. Hence, this study highlights the role of missionary maps in the distinctive visual expression of an ethnic territory in West African geography. [ABSTRACT FROM AUTHOR]

In May 2022, ahead of the 90th anniversary of Beck's original London Underground map, Transport for London opened the new Elizabeth Line, and added it to the already-congested map. But is the map still fit for purpose? This paper references critiques of the recent iterations of the map, and undertakes a cartographic review that assesses its form and function. It includes new designs of the map, created by the author, that attempt to deal with the issues identified, as well as providing a wider critique. In exploring why cartographers and designers offer alternative, often unrequested, new designs of such classic maps, the paper will reflect upon the issue of whether holding on to an iconic map, with its flaws, is preferable to letting go of the past and designing a completely new map. Changing the map would be a brave move, but is one that this author, among others, feels is too pertinent an issue to continue to ignore. [ABSTRACT FROM AUTHOR]

The paper discusses changes that have occurred over the last 15 years in how maps are sold, where they are sold and who is buying them. The emphasis is on the situation in the United States of America, but developments in Europe and the United Kingdom are also included. [ABSTRACT FROM AUTHOR]

This paper analyses the development of a triangulation network in the time of Napoleon I, when, due to imperial expansion, the extension of the existing triangulation network was necessary to extend Cassini's original map of France to the newly conquered territories of the French Empire. For this purpose, triangulators had to connect the already existing regional networks with the basic French network, as well as establish completely new ones in regions where they had not existed until then. Connecting various networks into a single chain was not only aimed at improving the accuracy of maps; it was also a clear reflection of a new understanding of territorial sovereignty. This paper examines which networks were established within modern-day northern Italy and maritime Croatia, and how they were mutually harmonized and interconnected, as well as what kind of repercussions this had on the development of mapping and map standardization. [ABSTRACT FROM AUTHOR]

Offers a look at the changes in the field of cartography. Impact of the advent of computers on cartography; Changes in cartographic communication; Comparison between the roles of cartographers, map users and virtual reality.

Diverse user requirements has led to an increasing availability of multi-temporal data, the analysis of which often requires visualization, e.g. in multi-temporal choropleth maps. However, if using standard data classification methods for the creation of these maps, problems arise: significant changes can be lost by data classification (change loss) or non-significant changes can be emphasized (change exaggeration). In this paper, an extended method for data classification is presented, which can reduce these effects as far as possible. In the first step, class differences are set for important or necessary changes. The actual data classification considers these class differences in the context of a sweep line algorithm, whose optimal solution is determined with the help of a measure called Preservation of Change Classes (POCC). By assigning weights during computation of this measure, different tasks or change analyses (e.g. emphasize only highly significant changes) can be processed. [ABSTRACT FROM AUTHOR]

Traditionally, most schematic metro maps in practice as well as metro map layout algorithms adhere to an octolinear layout style with all paths composed of horizontal, vertical, and $45^\circ$ 45 ∘ -diagonal edges. Despite growing interest in more general multilinear metro maps, generic algorithms to draw metro maps based on a system of $k \ge 2$ k ≥ 2 not necessarily equidistant slopes have not been investigated thoroughly. In this paper, we present and implement an adaptation of the octolinear mixed-integer linear programming approach of Nöllenburg and Wolff (2011) that can draw metro maps schematized to any set ${\cal C}$ C of arbitrary orientations. We further present a data-driven approach to determine a suitable set ${\cal C}$ C by either detecting the best rotation of an equidistant orientation system or by clustering the input edge orientations using a k-medians algorithm. We demonstrate the new possibilities of our method using several real-world examples. [ABSTRACT FROM AUTHOR]

A brief visual comparison between Henry Beck's map of the London Underground that was published in 1933 and its modern successor, issued by Transport for London (TfL) in 2022, reveals a loss of simplicity and clarity. Hence, it is important to question whether the map's current custodian is maintaining design efficacy and preserving Henry Beck's legacy. In this brief paper, I discuss how some aspects of the current design could result in usability issues, outline how I approached a re-design of the Tube map, and present a new version. [ABSTRACT FROM AUTHOR]

In recent years, many maps produced in the former Soviet Union have become available. However, researchers have focused on topographical maps or those of Western cities produced by the General Staff for military use, and less on maps created by GUGK, the state mapping agency, for domestic purposes, including tourism. By contrast, this paper focuses on maps produced for tourists, whether travelling by private car or on an organized rail or bus tour. The 42 maps reviewed take three main forms: those covering a single administrative region, ranging from an oblast to a Soviet republic; those of a specific tourist area or associated with a literary hero; and strip maps connecting major cities. The paper considers the general design and symbology used on these maps, tracing some of the stylistic changes and developments in the quarter-century prior to the collapse of the Soviet Union. [ABSTRACT FROM AUTHOR]

This paper presents an overview of the development and the establishment of Soviet educational cartography, using the example of school world atlases. Geography, as a compulsory school subject, began to be implemented in the curriculum only after 1934, putting maps right at the centre of the educational process. This triggered the formation of new governmental committees and centralized map production, introducing new approaches to school atlases and new content that was aligned to the newly developed programme. This paper, therefore, examines the changes in the cartographic production and content of school world atlases from the late nineteenth century until 1937 against the context of changes in managing and perceiving the Russian and Soviet spaces. [ABSTRACT FROM AUTHOR]

Soviet military maps utilized a comprehensive cartographic symbology that was designed for mapping the globe at various scales, including thousands of towns and cities in street-level detail. This paper presents an analysis of the Soviet symbol specifications, as defined by the official cartographic production documents, and aims to offer some insights into how the challenges of mapping a global diversity of urban and natural environments were addressed. A further stage of the analysis examines a sample of 19 Soviet military city plans to evaluate the implementation of the official symbology specified in the production documents. This finds that barely half of this symbology was utilized and that new symbols were routinely created as improvised solutions. By comparing the theoretical context of the symbology with its real-world application the paper offers a critical appraisal of the versatility of the Soviet approach that may inform current and future global mapping initiatives. [ABSTRACT FROM AUTHOR]

Piers are vital elements in the formation of collective memory in Mediterranean port cities and they played an important role in Mersin's urban life until the 1950s. Although there are some oral history-based studies attempting to spatialize them, they lack any measure of accuracy and reliability, and carry the risk of leading to false memories. In this context, the aim of this paper is to illustrate that collective memory can be properly reconstructed by using historical maps only if appropriate methods of analysis and reliable maps are used. In this study, which is based on various historical maps of Mersin city, the locations of the lost piers have been determined by using georeferencing tools available in QGIS. The study reveals that the tendency to construct false memories could be prevented by using reliable maps and appropriate tools in GIS in combination with the archive records. [ABSTRACT FROM AUTHOR]

A chart of the sixteenth century is extant, depicting the southern hemisphere and containing the earliest known representation of the southeast coast of South America, in the wake of Magellan and Elcano's circum navigation. In this paper, it is argued that astronomical observations of longitude were accommodated in the representation, and that the chart was produced in the specific context of the Juntas of Badajoz-Elvas, held between the representatives of the Spanish and Portuguese Crowns, to discuss the location and possession of the Spice Islands. It is further shown that the chart was produced using the information brought to Seville by the ship San Antonio, which had deserted the fleet in October 1520, before the passage to the Pacific Ocean was found. It is concluded that this chart presents a unique historical milestone in the history of cartography, containing the earliest material evidence of the effective use of astronomical methods to determine longitude in a nautical context. [ABSTRACT FROM AUTHOR]

At present, Canadian census tract boundaries are available in digital form for 1951 and at 5-year intervals for the 1976–2021 period; the 1956–66 census boundary files have not been digitized and associated data are not readily available for the pre-1971 period. This inhibits the mapping and analysis of neighbourhood change for a period of rapid urban and social transformation. To fill this gap, we digitized 1956–66 census tract boundaries from paper maps for all cities for which such data were disseminated. We adjusted 2006 boundaries to match georeferenced historical maps in concert with ancillary data, including topographic and cadastral maps. All decisions are documented in the files. Finally, printed profile tables for 1951 and 1956 were digitized for joining the boundary files. Researchers may use these datasets to explore, analyse and map geospatial trends in the Canadian population at the neighbourhood scale back to 1951. [ABSTRACT FROM AUTHOR]

This paper aims to quantify land cover and vegetation changes over the past 250 years on Norfolk Island, Australia, a remote island important for its cultural heritage and biodiversity. We collated over 130 historical maps and aerial photos from various archives, of which we georeferenced 80. Supervised classification and manual digitization were used to extract detailed land cover information on vegetation cover from 10 historical maps and datasets. While the classification and symbology used to represent vegetation on the different maps varied over time, we were able to track changes in vegetation cover on the island. We found that after the first (colonial) settlement, non-agricultural vegetation cover was at its lowest during the 1940s, and has since then expanded. We found high constancy of land cover patterns on the island since 1840 onwards. Historical maps thus provide an understanding of the dynamics that shape the present landscape. [ABSTRACT FROM AUTHOR]

This paper presents the Cameron Aquatic Projection, a novel concept designed to depict the world's surface hydrosphere as it is, a continuous unbroken unit including oceans and rivers. After a review of related past projections, the paper will describe the parameters of the projection, according to the existing layout of surface water on Planet Earth. This description of the design principles is followed by the mathematical realization of the proposal. The article concludes with completed examples of the projection and suggests future applications. [ABSTRACT FROM AUTHOR]

The final position of the Norwegian–Swedish border was determined in 1751, after challenging negotiations. This paper focuses on central parts of Scandinavia and investigates the role of cartography in the border positioning process. The examination of a wide variety of historical maps before and after the border treaty provides insight into the differing opinions on the border region's shifting affiliation. Other factors that helped to shape the borderline were a turbulent political situation with shifting sovereignty over the area in question, as well as conflicts over valuable resources. The findings indicate that cartographic evidence had an important role in the position of the Norwegian–Swedish border in central Scandinavia. The paper adds to our understanding of maps as a political tool as well as of the role of resources in border processes, and provides new knowledge on how cartography influenced a national border between two countries fighting for land, resources and hegemony. [ABSTRACT FROM AUTHOR]

Friedrich Eisenlohr presented a map projection in 1870 that is optimal for a conformal world map of the sphere interrupted along an entire meridian. The projection has received little attention in the literature despite its theoretical importance. This paper gives alternative formulations for the projection and its scale factors and develops an efficient inverse for the projection. [ABSTRACT FROM AUTHOR]

The aim of this paper is to introduce a method that can be used for the verification of cartographic communication models. The authors of the maps were placed in the role of the users of their maps. Then, eye-tracking was utilized to reveal their map reading strategies and compare them with the strategies of other cartographers and cartographic novices. The crucial part of the data analysis was scanpath comparison using the sequence of visited Areas of Interest, which helped quantify map reading strategies' similarity. The use of the same strategy as the map author used might be a prerequisite for users' proper understanding of a map reflected by the overlap of the author's and users' realities in Koláčný's model. The overlap was considerable in most cases; however, exceptions in which authors used a different map reading strategy were identified. [ABSTRACT FROM AUTHOR]

Topographic maps are widely used to provide geospatial information on digital environments, and the principles of cartographic communication positively impact its design. This paper proposes new road and building symbols in mapping Brazilian urban areas, aiming to increase the effectiveness of map-reading tasks (MRTs) in a multi-scale context. For this purpose, colour theory and semiotics were applied to develop new symbols and a remote test through an adapted think-aloud protocol. The results showed that users performed better with the proposed symbols than the previous ones. [ABSTRACT FROM AUTHOR]

This paper presents an empirical study assessing the usability and utility of different interfaces for visualizing large sets of point features in mobile maps. We focus on interfaces that present only a subset of all features and provide interaction functionalities for browsing through all of the information. We compare an established zoom-and-pan interface against three recently proposed interfaces that do not require a change of map scale or section. Each of the novel interfaces implements one additional, specialized interaction functionality for presenting all information without the need to zoom or pan. As a first step towards user-centred design, we investigate how well the specialized interactions are adopted by users. Given a visual search task, we show that participants performed significantly fewer zooming and panning operations using the novel interfaces than when using the zoom-and-pan interface. Further, we observe advantages in terms of search accuracy and the extent of the visible map area. [ABSTRACT FROM AUTHOR]

This paper reports findings of a laboratory study that attempts to establish the limits of legibility for fundamental cartographic symbology on modern smartphone screens of varying pixel density. In a controlled setting, participants were asked to discriminate different types of cartographic symbology, while stimulus size was gradually reduced. From the collected results, the limits of discriminability for each symbol type and screen resolution are derived. The paper gives a detailed report and statistical analysis of the results of the experiment and proposes updated guidelines for minimum cartographic symbol sizes for settings in which a high-density display device can be reliably provided. [ABSTRACT FROM AUTHOR]

This paper presents a comparative analysis of the Soviet military city plans of Tel Aviv (Israel) and Copenhagen (Denmark), that both date from 1985. It presents a methodological framework to examine and compare the quality and completeness of thematic information included in the plans, particularly the strategically important objects (which are identified, numbered and colour coded according to their function). Our results indicate that the Soviet city plans do not include all military sites located in the areas they cover. In addition, several sites are erroneously included in the lists of strategically important objects and the lists also include obsolete information on sites that were no longer in military use. Ultimately, our analysis found no substantial difference in thematic accuracy between the two plans. [ABSTRACT FROM AUTHOR]

As long as maps produced by the official Chinese state mapping agency at scales larger than 1:1,000,000 remain inaccessible, Soviet General staff maps provide the best alternative. Although toponyms are given only in cyrillicized form, vernacular script equivalents may be found on pre-1945 Japanese military survey maps as well as on some maps of the US Army Mapping Service (AMS). A unique feature of the Soviet 1:200,000 map series is the accompanying spravka or descriptive text on the reverse of each sheet, probably constituting in aggregate the most detailed description of China ever compiled. Soviet General Staff plans of Chinese cities include 'objects' of military significance, many of which are omitted or not identified on any other mapping. This paper presents translations of the spravka from a representative sheet of the 1:200,000 series and from the city plan of Beijing, together with an evaluation of the reliability of their content. [ABSTRACT FROM AUTHOR]

Soviet and Russian military maps may comprise any combination of over 1,000 map symbols and 3,000 Russian terms. These symbols and terms identify tangible aspects such as locations, unit/equipment type and numbers, but some symbols, and groupings of symbols, can also denote more subjective aspects such as movement over time, types of manoeuvres, relationship to the surrounding environment and other activities or conditions. Unlike Russian topographic maps that have a well-documented symbology system, there has been little study of Soviet/Russian military map symbology and terms. This paper offers a brief overview of the topic and discusses a few examples. [ABSTRACT FROM AUTHOR]

The plans of world cities outside the USSR that were produced by the Soviet military during the Cold War each include a List of Important Objects. These are items of significant strategic economic, administrative or military importance. This paper examines these object lists from Soviet military plans of British cities and discusses their contents. It concludes that there is considerable variation in their comprehensiveness and some inconsistency in the criteria used to select objects for inclusion. [ABSTRACT FROM AUTHOR]

Accessibility to tactile maps is limited due to their expensive and time-consuming development. Acceleration of their production requires standardized design guidelines that consider symbol design and production methods. In this paper, based on a review of research and best practice, we summarize knowledge on how to design tactile maps properly and provide a selection of highly legible, recommended symbols for the compilation of tactile maps. We also examine generalization constraints and other design parameters that are necessary for the standardization of tactile mapping. Finally, we explore differences in tactile map design depending upon the selected production method. Over the years, many useful guidelines have been developed although they remain unknown to the wider audience. There is still a long way to go in creating a global standard for the design of tactile maps. [ABSTRACT FROM AUTHOR]

While dockless bike sharing is gaining popularity, oversupplied and poorly maintained bikes introduce chaos and waste (e.g., so-called zombie bikes that unused). Spatiotemporal pattern visualizations can help policy-making and infrastructure improvement (e.g., allocating parking areas). However, multivariate symbolizing (e.g., supply, flow, usage) to optimize dockless bike sharing is challenging. In this paper, we introduce metaphor theory to design multivariate symbols. First, we systemically explore the coupling of three metaphor types (orientational, ontological and structural) with symbols at three levels of iconicity. Then, we construct metaphorical symbols for optimizing dockless bike sharing following a user-centred design process. We also offer an evaluation using eye-tracking and questionnaire techniques. The results indicate that, compared with bin-packing and multiview symbols, metaphorical symbols significantly improved effectiveness and efficiency, and reduced participants' cognitive load. Our evaluation presents preliminary evidence that metaphors can offer new organizational mechanisms for map symbols to represent multivariate naturally and effectively. [ABSTRACT FROM AUTHOR]

This paper describes the survey of the Paracels organized by the British East India Company (EIC) in 1808 in the context of the late Enlightenment. It documents the preparatory work for and execution of the survey to show that it overturned the erroneous representations of the Paracels on maps and charts from the sixteenth to the early nineteenth century. Using new archival material, including ship's journals, memoirs, and private letters, this paper examines details of this survey, including patronage networks and the role played by institutions to argue that the late Enlightenment was a period of transformation in the epistemology and methodology of geography. [ABSTRACT FROM AUTHOR]

Unlike modern maps, geometric maps lack a coordinate system and contain unsystematic geometric inaccuracies. This paper illuminates four aspects concerning the problem of uniting geographical information technology with old geometric maps. These are as follows: first, the origin of and geometric qualities in the representation of objects in geometric maps; second, the distortions originating from measurement techniques; third, the assumption that it is possible to find points that are the same over time for rectification in Geographic Information System (GIS); and, fourth, the extrapolation of unsystematic geometric distortions when using GIS techniques without any knowledge of the present unsystematic distortions in a map. The article presents the background of Swedish geometric maps and a hypothetical example is used to present the principle problems of using GIS techniques to rectify geometric maps. The conclusion of the paper is that systematic and unsystematic geometric distortions need to be identified and handled separately. [ABSTRACT FROM AUTHOR]

The Gazetteer of Planetary Nomenclature (GPN) is maintained by the International Astronomical Union Working Group for Planetary System Nomenclature. It contains the internationally approved forms of place names of planetary and lunar surface features. In the last decades, spacefaring and other nations have started to develop local standardized equivalents of the GPN. This initiated the development of transformation methods and created a need for auxiliary information on the names in the GPN that is not available from the database of the GPN. The creation of 'localized' (local language) variants of the GPN in non-Roman scripts is an unavoidable necessity, but is also a cultural need. This paper investigates the localization methods into Chinese and Russian; two nations with different scripts, and two that are spacefaring ones. The need for the creation of a localized GPN is related to the local importance of scientific papers published in the local language and the existence of locally developed and operated scientific planetary spacecraft, but exceptions exist. [ABSTRACT FROM AUTHOR]

Flood maps group different types of cartographies related to flooding and the components and variables of flood risk and its mitigation measures. This paper analyses the most important facts in the development of flood mapping in Spain and assesses the current. While 60/2007 EU Directive has been an important step for mapping risk, future developments must: (i) overcome the concept of return period; (ii) incorporate other aspects of the European Directive, basically vulnerability and susceptibility to flooding from rainwater, also the effect of climate change on flood hazards; (iii) include scenarios for the consequences of climate change; (iv) incorporate risk cartography as a key element of 'green infrastructure', like tool in spatial planning; (v) Reduce the map representation scale; (vi) incorporate new elements within risk maps to improve emergency management; (vii) improve public-private cooperation; (viii) facilitate the legal use of hazard and risk maps in administrative and court processes. [ABSTRACT FROM AUTHOR]

3D cartographic visualization of a continuous time-dependent phenomenon is not an easy task. The focus of this research is motivated by the struggle to visualize such a phenomenon. Based on the current state of the art, we implemented new visualization methods to visualize continuous time-dependent phenomena. All visualizations are based on the use case of road-traffic-generated noise in outdoor urban areas. These visualizations utilize the third dimension of the map scene. The first two methods focus on the variations of the noise in the vertical dimension (i.e. height). The third method is based on the idea of space–time cube and therefore utilizes the time variable as the third dimension. For demonstration purposes, all methods were implemented in an online application. Furthermore, user testing of those applications was conducted. This paper thus describes design, implementation and user evaluation of newly proposed methods for third dimension visualization. [ABSTRACT FROM AUTHOR]

Cartographic generalization is a process similar to text summarization that transforms a map when scale is reduced. Cartographic generalization simplifies the map content while preserving as much as possible the initial characteristics and spatial relations of the map. The automation of this process requires a deep understanding of the context of each map feature, which involves different criteria such as the shape of the feature, the semantic nature of the feature, or the spatial patterns of its neighbouring features. This is why multiple criteria decision techniques can be relevant during the process. This paper proposes two use cases of cartographic generalization sub-tasks where multiple criteria decision techniques improve past techniques: the classification of urban building blocks and the ordering of the buildings to keep in the map as a priority. In both use cases, the proposed methods are experimented on large real cartographic datasets, and evaluated in comparison to alternative techniques. [ABSTRACT FROM AUTHOR]

This paper emphasizes the role of cartographic modelling of tourist routes in the Carpathians in the context of the development of tourist mapping. It describes the distinguished features of Transcarpathian and Eastern Carpathian tourist routes as the objects of mapping. These routes are extremely popular among tourists due to their remarkable recreational and touristic value. Tourist map series fulfil the needs of tourists and also form a relevant and promising practical area of modern geographical mapping. We systematise the principles and describe the methodological basis of cartographic modelling of tourist routes in the Carpathians. We particularly detail the peculiarities of the decoration of tourist maps. Our research contributes to the development of the integral system of spatial, visual, complementary, and comparative information about the region's location, conditions, and features of natural, historical, cultural and socio-economic tourist resources. [ABSTRACT FROM AUTHOR]

Historical maps are popular reference tools for historical, archaeological and temporal analysis, and there has recently been an increase in their use. However, for various reasons, the planimetric accuracy of maps produced before the nineteenth century is usually considered to be lower than today. In this paper, a new method for assessing maps is proposed, using a series of processes, such as radial-based function artificial neural network, magnetic declination, and also MapAnalyst software. The map used in the current study (of Europe and the Mediterranean Sea) is a small-scale map; therefore, control points were produced by taking reference from large-scale maps drawn by the same cartographer, Piri Reis (c.1465–1553). While developing this method, affine transformation (six parameters) was compared in terms of planimetric accuracy. The results indicate that Piri Reis's Mediterranean map offers us unique information in many areas. [ABSTRACT FROM AUTHOR]

The automatic placement of map labels in graphically dense areas is one of the challenging problems in modern cartography. Creation of the annotation layer still requires human interaction and automation of this process has significant potential for reducing the time required for map production. In this paper, we present a software technique for the key numbering process that we applied to approximately 20% of the 1:25,000 topographic maps of Turkey. The results were compared with those obtained from the traditional manual method. The consistency of the results is above 90%, achieving time savings of 70%, which indicates an substantial improvement in topographic map production. [ABSTRACT FROM AUTHOR]

This paper analyses the maps of East Asia and Central America drawn by Europeans between the sixteenth and eighteenth centuries, and illustrates the distinctions in the roles of Europeans in these two civilizations through the investigation of cartographic differences. In the initial stage of Europeans' entry into East Asia and Central America, the local maps have both the characteristics and techniques of the outsiders and the insiders, reflecting the distinct scene of the encounter of civilizations. In the process of localization, the map system of East Asia deconstructed European cartography, the original purpose of early Europeans entering China was digested by Chinese society, and their role changed from missionary to royal courtier. European cartography deconstructed and colonized the traditional cartography of Central America, which corresponds to the history that Europeans gradually became the rulers of indigenous people in real life. [ABSTRACT FROM AUTHOR]

Reliable and unhindered access to raw materials is a growing concern within the EU and across the globe and the demand for Critical Raw Materials (CRM) plays a crucial economic role in most developed countries around the world. These are of extreme importance for supply chains regarding new technologies, sustainability issues and carbon footprint reduction. The definition of a continuously updated list of CRM by the European Commission led to the first CRM Map of Europe in 2016. Following this, several countries have been surveying, preparing, and evaluating their mineral occurrences to create a resources/deposits database and, therefore, to create a CRM map of their own. With this purpose in mind, we present and explain the first Critical Raw Materials Deposits Map of mainland Portugal, at 1:700,000 scale. This paper describes the scientific, technical, and graphical methodologies involved in its design. [ABSTRACT FROM AUTHOR]

Dynamic maps are commonly used for the depiction of quantitative information. However, their users often fail to notice changes in the intensity of geographic phenomena. Moreover, if the distribution of colour values between two scenes changes, the user might have a problem with recalling the colour arrangement from the previous scene. A commonly occurring mistake is indicating that the colour changed its value, while in reality it did not. This paper examines the potential impact of the magnitude of change on the detection of the fixed enumeration units of a dynamic choropleth map. The research is based on Signal Detection Theory methodology and uses eye-tracking technology to examine the change blindness phenomenon on spatiotemporal maps. The results show that regardless of the magnitude of change and the number of enumeration units, the participants were convinced that the colour value in a particular place changed, even though it did not. [ABSTRACT FROM AUTHOR]

For designing qualitative interfaces for Public Participatory Geographic Information Systems (PPGIS), the user and use case should be clearly defined. However, PPGIS users may differ significantly, e.g. regarding their cultural background, IT-literacy, or interests. Studies examining varying user types and their impact on PPGIS usability are, however, lacking. In this paper, we analyse the user spectrum through conducting a usability study with 73 participants located in Colombia, Uganda and Austria. We combined a qualitative survey (conducted in all three countries) with an eye-tracking based survey (conducted only in Austria). Most of the usability issues arose due to inexperience in using interactive maps or applications other than social media. Based on the findings, we explored which user context information had an impact on which usability problem. With this, we designed an adaptation gradient that can be used for future research on developing adaptive PPGIS interfaces. [ABSTRACT FROM AUTHOR]

The process of political and territorial unification of the Kingdom of Italy (1860) and Austria-Hungary (1867) highlighted the issues of territoriality both on land and at sea. As a part of that effort, a need of maritime survey of the Adriatic conducted by the joint forces of the Austro-Hungarian and Italian hydrographic offices appeared. The purpose of this endeavour was to enable the production of modern charts based on a comprehensive survey covering the whole sea surface area, from coast to coast. Under the supervision of Commander Tobias Ritter von Oesterreicher and Counter-Admiral Duke Antonio Imbert, the survey started in 1866 and, by the end of 1873, resulted in a general chart of the Adriatic, 4 course charts of the Adriatic Sea, 55 coastal charts as well as number of harbour plans. This paper presents an analysis of the course of the survey, its products as well as its impact on the subsequent cartography of the Adriatic Sea. [ABSTRACT FROM AUTHOR]

There are several open source and commercial implementations of the Visvalingam algorithm for line generalization. The algorithm provides scope for implementation-specific interpretations, with different outcomes. This is inevitable and sometimes necessary and, it does not imply that an implementation is flawed. The only restriction is that the output must not be so inconsistent with the intent of the algorithm that it becomes inappropriate. The aim of this paper is to place the algorithm within the literature, and demonstrate the value of the teragon-test for evaluating the appropriateness of implementations; Mapshaper v 0.2.28 and earlier versions are used for illustrative purposes. Data pertaining to natural features, such as coastlines, are insufficient for establishing whether deviations in output are significant. The teragon-test revealed an unexpected loss of symmetry from both the Visvalingam and Douglas-Peucker options, making the tested versions unsuitable for some applications, especially outside of cartography. This paper describes the causes, and discusses their implications. Mapshaper 0.3.17 passes the teragon test. Other developers and users should check their implementations using contrived geometric data, such as the teragon data used in this paper, especially when the source code is not available for inspection. The teragon-test is also useful for evaluating other point reduction algorithms. [ABSTRACT FROM AUTHOR]

The paper investigates into the rendering of minority place names on maps of the Third Austrian Military Survey, i.e. the Francisco-Josephinian topographical survey in the scales 1:75 000 (‘Special Map’) and 1:200 000 (‘General Map’) executed and edited by the Military-Geographical Institute in Vienna in the 1870s and 1880s with a regional focus on two sample areas, i.e. bilingual (German-Slovenian) southern Carinthia and Italian-Croatian parts of the Austrian Littoral. On the background of already well-established national identities and a rather well-developed nationality legislation in these Austrian crownlands, the paper shows the extent to which the rendering of place names for all feature types on official maps reflects nationality rights, inter-ethnic relations and Viennese state policies. [ABSTRACT FROM AUTHOR]

This paper presents an overview of West and Central European mapping between 1650 and 1800. The period was marked by the emergence of distinctive types of mapping, influenced by the spirit of the Enlightenment, particularly its adoption of consciously scientific methods and reliance on direct observation, the acceptance of geography as an academic discipline and a questioning attitude towards previously accepted authority. Such maps were expensive to create and relied on sponsorship by the state and/or academies and, in their published form, on collaboration of both with the map trade. 'Enlightenment Maps' are far from being a homogeneous group, however, are of varying quality, and were less prevalent than generally assumed: many traditional types of map continued to be created, published and purchased by an ever-widening public readership. [ABSTRACT FROM AUTHOR]

This paper examines the relationship between the press and the construction of 'enlightened' public knowledge about – and imaginaries for – the emerging south in the period 1760–1777. It analyses the construction, nature, and forms of the putative Great Southern Continent in contemporary British newspapers and magazines, and offers some suggestions for how knowledge from navigators such as James Cook was given credence in the public domain back home. It draws parallels between the 'new media' of the eighteenth-century Enlightenment and those of the twenty-first century with their similar debates over who controls public (geographical) information, whom and how to trust, and why. [ABSTRACT FROM AUTHOR]