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陕西省环境资源地图集的设计、编制和印刷装帧汲取了众多优秀图集的成功经验,借鉴了各种精美的符号和表达方式,基于Freehand制图软件的编制设计使地图集编制的效率有了很大的提高. 相似文献
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Perceptual complexity of soil-landscape maps: a user evaluation of color organization in legend designs using eye tracking 总被引:1,自引:0,他引:1
《International Journal of Digital Earth》2013,6(6):560-581
ABSTRACTWe compared the ability of two legend designs on a soil-landscape map to efficiently and effectively support map reading tasks with the goal of better understanding how the design choices affect user performance. Developing such knowledge is essential to design effective interfaces for digital earth systems. One of the two legends contained an alphabetical ordering of categories, while the other used a perceptual grouping based on the Munsell color space. We tested the two legends for 4 tasks with 20 experts (in geography-related domains). We analyzed traditional usability metrics and participants’ eye movements to identify the possible reasons behind their success and failure in the experimental tasks. Surprisingly, an overwhelming majority of the participants failed to arrive at the correct responses for two of the four tasks, irrespective of the legend design. Furthermore, participants’ prior knowledge of soils and map interpretation abilities led to interesting performance differences between the two legend types. We discuss how participant background might have played a role in performance and why some tasks were particularly hard to solve despite participants’ relatively high levels of experience in map reading. Based on our observations, we caution soil cartographers to be aware of the perceptual complexity of soil-landscape maps. 相似文献
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在运河"申遗"工作的推动下,以京杭运河为代表的大量古代水利工程相继成为各级文物保护单位,水利、文物等部门相继开展了古代水利工程保护与管理规划的编制工作。由于古代水利工程保护的特殊性,在保护规划图编绘的过程中发现已有的规划图编绘技术标准不能满足实际工作的需求,突出地表现在现有规划要素图例不能完整地表达保护规划内容。本文根据古代水利工程保护特殊要求,结合当前已有的规划图编绘技术标准和成果,提出了京杭运河保护与管理规划图图例系统和具体设计方案。 相似文献
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The prehistoric eruptions of Mount Pinatubo have followed a cycle: centuries of repose terminated by a caldera-forming eruption with large pyroclastic flows; a post-eruption aftermath of rain-triggered lahars in surrounding drainages and dome-building that fills the caldera; and then another long quiescent period. During and after the eruptions lahars descending along volcano channels may block tributaries from watersheds beyond Pinatubo, generating natural lakes. Since the 1991 eruption, the Mapanuepe River valley in the southwestern sector of the volcano has been the site of a large lahar-dammed lake. Geologic evidence indicates that similar lakes have occupied this site at least twice before. An Ayta legend collected decades before Mount Pinatubo was recognized as a volcano describes what is probably the younger of these lakes, and the caldera-forming eruption that destroyed it. 相似文献
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A Classification Method for Choropleth Maps Incorporating Data Reliability Information 总被引:1,自引:0,他引:1
Observations assigned to any two classes in a choropleth map are expected to have attribute values that are different. Their values might not be statistically different, however, if the data are gathered from surveys, such as the American Community Survey, in which estimates have sampling error. This article presents an approach to determine class breaks using the class separability criterion, which refers to the levels of certainty that values in different classes are statistically different from each other. Our procedure determines class breaks that offer the highest levels of separability given the desired number of classes. The separability levels of all class breaks are included in a legend design to show the statistical likelihood that values on two sides of each class break are different. The legend and the associated separability information offer map readers crucial information about the reliability of the spatial patterns that could result from the chosen classification method. 相似文献
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MAPGIS环境下矿产数据快速符号化 总被引:1,自引:0,他引:1
深入探讨了GIS环境下矿产数据快速符号化的最优策略,体现为以自动处理为特点的基于符号搭配表文件定制方法和以灵活通用见长的图例编辑器方法的有机结合,并已基于MAPGIS6.x平台以VC++ 6.0实现. 相似文献
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在AutoCAD2004中,对绘制地质图件常用到的三种图例,分别用不同方案进行定制,提高了绘图的工作效率,有利于制图的标准化。 相似文献
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