关于2017年全国大学生数学建模竞赛B题的地图可视化思考 - 知乎专栏
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标价方案与会员分布有关系，会员密集的地方，标价相对偏低，大概是为了吸引会员做任务，对注册会员较少的地方，任务标价相对较高。2）未完成原因：从任务完成情况来看，完成情况与标价相关性较大。很多会员分布不太密集但标价较高的地区，也都能够完成，反而会员注册密集区域，红色标记未完成的任务较多。我们将数据置于格网中量化查看。图例说明：格网颜色代表会员人数，红色越深表示人数越少，越偏向黑色，表示人数越多。格网内的数字，右下角黄色标签表示该格网内的会员数，左下角绿色标签内表示完成任务人数。左上角白色标签内表示未完成任务人数。通过这张图，我们可以看出。虽然会员人数较多的黑灰色格子会员人数非常多，但完成任务情况并不乐观，白色标签所代表的未完成任务人数，多分布于会员密集的黑灰色格子中。产生这个问题的原因，可能有二：1）该区域内，定价方案里，因考虑到会员分布较为集中，因此标价偏低，影响会员完成任务的积极性。2）我们将会员按照信誉值做了区分，该区域内，信誉值较高的，用红色点表示，信誉度较低的，用蓝色点表示。可以看出，虽然会员人数较多，但在会员密集区域，活跃会员并不多。如何使用户活跃，也许是提升任务完成率的解决方案之一。达到这一目的，是通过任务打包，还是通过提高任务价格，则需要进一步的验证。也许上面的图看不太清楚，故将完成任务和会员两个图层叠加，可以参照下图。黄色点代表完成的任务，点越大，标价越高。格网代表会员数量，红色人少，黑灰色人多。下图代表未完成的任务和会员叠加。红色点代表完成任务，点越大，标价越高。格网代表会员数量，红色人少，黑灰色人多。仅从可视化部分进行分析，不涉及建模。后续比赛完成后，期待看到同学们的想法～＊制图工具采用 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那么，如果你想自己私人定制一套属于自己的地图，又不想写代码，有办法么？当然有～＊这里首先要感谢前期做的数据处理工作，这里借用了GaoHR此前处理过的数据，节省了大量的工作量，再次感谢！在开始之前，我们先科普一个概念，地图图层。我们平时所用到的地图，是分为很多图层的。比如我们平时用的高德地图，上面会有很多酒店，公园，餐厅，道路信息，每一类主题的信息，为方便后续的管理，都单独列为一个图层。大致了解了图层的概念之后，我们先梳理一下，权力的游戏里，会有哪些地图数据类型？1 行政区划地图，区分出海域和陆地，以及各个国家的领域。2 地形地貌，描绘出主要的森林，山脉，河流等。3 城市，剧中提到的主要城市，如君临，临冬城，兰尼斯港等。4 城堡，剧中涉及的大事件要城堡，如恐怖堡，蜂巢城，海疆城等。5 事件，剧中涉及的大事件，战争等。梳理完毕之后，我们着手准备制图。Step1:确定制图的工具这里我们将借用GaoHR前期处理过的数据，数据格式为geojson。如果还需要将数据做进一步的处理，这里推荐QGIS或ArcGIS。制图工具，考虑到地图是虚拟的，需要使用自己制作行政区划底图，并且希望不写代码还能够有一些交互功能，综合对比类似的工具产品之后，决定使用（）。Step2:整理数据根据前面的图层梳理，我们将数据整理为三份数据文件。第一份数据，是行政区划的面数据，这个数据将作为整个地图的底图使用。第二份数据，是城市，城堡，和一些标志建筑的点数据，将用于位置的标示。第三份数据，是事件，将用时间轴播放的形式，带我们探索整个剧情。Step3:剧情底图制作这里，底图指的是对整个行政区划和地形地貌等整体区域情况的描绘。点击左下角的底图，选择最下层边界地图的铅笔形状的编辑按钮，进入边界地图界面。边界地图可以选择已存在的国内各个城市范围，但这里，我们希望制作的底图是虚拟边界，因此这里需要点击【上传geojson】，选择我们准备好的边界的geojson数据。同时，自己搭配一下背景和填充的颜色和线段颜色，显示标注的字段，初步效果如下图。点击保存，关闭边界地图，应用到当前地图上，我们来看一下效果吧。Step4:制作标志地物图层。底图有了之后，我们将在底图上添加一些城市，城堡，标志建筑等。对于这一类的数据，我们可以用excel表来做整理。表格需要包括标志地物的名称，经度，纬度，类型，和一些描述字段。数据整理好之后，我们选择第三个点分类模版，点击添加数据，添加我们整理好的excel文件。我们可以在上传数据页面进行字段类型的调整和查看。数据上传完毕之后，我们将通过分类字段，去标示不同类型的标志地物。比如，城堡我们可以使用城堡的icon去展示，城市可以用一些代表城市的icon。这里还可以增加一些互动效果，使用弹出框设置，点击标志地物的时候，会弹出一个弹窗，显示这个地点的一些描述。可以设置显示弹窗的标题，显示的字段，以及弹窗的颜色样式等。为了地物方便查看，这里我们可以设置在地图上标注地物名称，只需要在标注下拉框中选择名称字段，并设置标注的背景和填充颜色，利用标注偏移，将标注放置在合适的位置。地物较多的情况下，标注挤在一起会显得十分拥挤，因此我们设置一下标注的级别，使其只能在地图放大之后，才能够看到标注。到此位置，标志地物的图层大致完成。Step5:剧中大事件播放为了增加地图的趣味性，方便探索整个故事剧情，我们在这里增加一个剧中大事件播放的图层。同样的，对这一类数据，我们也可以采用excel来进行整理。表格包括时间，事件名称，经度，纬度，事件的类型，描述等。剧中很多事件的时间不方便整理，这里我们用数值格式的数字来代替，也就是下表中的编号字段。这里，我们新建一个图层，点击分类模版，并上传这份事件数据。同样，我们以图标的形式，展示这些事件。并以弹出框的方式，增加这幅地图的交互趣味性。那么，最重要的一个问题，如何实现大事件的时间播放功能呢？还记得之前我们整理数据的时候，增加了一个用编号代替的时间字段吗？我们就用这个字段，来完成时间轴的功能。在这一个图层，开启时间轴设置，并将编号字段设置为时间字段，设置合适的播放时间，播放方式，就开启了大事件播放的功能。点击播放，就可以看到整幅地图，随着事件的发生，不断的带着你去探索。Step6:发布地图所有这些工作完成之后，我们只需要点击左下角的保存／分享，输入我们希望发布的地图名称，即可完成整个地图的制作和发布。发布之后，可以通过地图链接，或用手机扫描二维码，就可以非常容易的查看所制作的地图～全部制作完成，让我们欣赏一下刚才的劳动成果吧～
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2017年全国大学生数学建模竞赛论文评阅要点官方版发布了！
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今日搜狐热点关于参加2017年全国大学生数学建模竞赛的报名通知
关于参加2017年全国大学生数学建模竞赛的报名通知
发布人：蒋文君&&发布时间：&& 浏览次数:11
各学院：为了参加2017年全国大学生数学建模竞赛，学校将组织校内学生选拔活动，请有意向参加本次竞赛的同学进行报名。现将报名事项通知如下：一、报名时间：6月15日（周四）——6月18日（周日）。二、报名范围：全校本科学生。三、报名方法：有意参加者可直接向各专业辅导员处报名。请各专业辅导员务必在6月19日之前将汇总的报名信息Excel表格（具体见附件1）,发送到邮箱地址：chenst@。赛前选拔和辅导将在本学期期末以及9月初举行，具体时间地点另行通知。四、竞赛时间：竞赛将于9月15（周五）8时至9月18（周一）8时举行。五、报名注意事项：竞赛选手需要具备较好的数学及计算机基础、乐于参加竞赛类活动、良好的团队精神、相当的毅力和耐心。正式选手名单一旦确认，不得中途退出。比赛结束后，参加竞赛的学生将获得相应的素质学分，若获得名次的还将有相应的学校奖励。（联系人：陈苏婷，电话：，办公电话：。）特此通知。上海建桥学院教务处、通识教育学院<span style="font-size:19font-family:fangsong_gb年6月14日附件1：数学建模竞赛报名汇总表样式学号姓名班级手机号如何评价2017年美国大学生数学建模竞赛？ - 知乎753被浏览412130分享邀请回答914 条评论分享收藏感谢收起