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首页> 外文期刊>Civil Engineering Surveyor >A GEODETIC APOLOGY OR AN ENQUIRY OF GREAT IMPORT INTO THE WORLD AS IT WERE A GLOBE 'Tripod' Continues the Sensational Series Part Ⅺ.
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A GEODETIC APOLOGY OR AN ENQUIRY OF GREAT IMPORT INTO THE WORLD AS IT WERE A GLOBE 'Tripod' Continues the Sensational Series Part Ⅺ.

机译：大地的道歉或对进入世界的巨大询问，因为它是地球“三脚架”，继续引起轰动。

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If there is one thing that the Flat Earth community has suffered most from since its 19th century genesis, it is a lack of a viable map of its Earth. As we have seen, latitude and longitude on a Flat Earth make no sense. This simple fact has remained unaddressed in any satisfactory manner for more than a century and a half. However, Samuel Rowbotham needed a map to illustrate his Flat Earth and the only one he could find, and reproduce in his great book, was what is known as an azimuthal projection. Projections used by mapmakers and surveyors are merely mathematical conveniences to portray the Spherical Earth, or parts of it, on the flat plane of a map. A sphere is, by definition, incapable of being rendered flat without introducing some distortion. A surveyor or cartographer's choice of which projection to use is a balancing act, much depending on the purpose intended for the map. For example, a political map might be best portrayed in a way that preserves the size (area) of countries, in which case an equi-area projection is best. A surveyor producing a map for, say, an offshore wind farm, might choose a projection that preserved shape and angles such as a transverse Mercator projection, where distances are easily corrected with a scale factor.
机译：如果说自19世纪以来，“扁平地球”社区遭受的最大苦难是缺乏可行的地球地图。如我们所见，在平坦地球上的经纬度没有意义。一个半多世纪以来，这个简单的事实一直没有以任何令人满意的方式得到解决。但是，塞缪尔·罗伯特汉姆（Samuel Rowbotham）需要一张地图来说明他的“平地”，而他唯一能找到并复制到他那本伟大著作中的地图就是所谓的方位角投影。地图制作者和测量师使用的投影仅仅是将球形地球或其一部分描绘在地图的平面上的数学便利。根据定义，球体不能在不引入任何扭曲的情况下变得平坦。勘测员或制图师选择使用哪种投影是一种平衡，这很大程度上取决于地图的目的。例如，最好以保留国家规模（区域）的方式来描绘政治地图，在这种情况下，等值区域投影是最佳的。诸如为海上风电场绘制地图的测量师可能会选择保留形状和角度的投影，例如墨卡托横向投影，其中可以轻松地用比例因子校正距离。

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    《Civil Engineering Surveyor》 |2019年第2期|XLi-Xliv|共4页
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