Approximately 1M sample points on projection plane for each map projection

Root link of the proposed FWD-GCA-based metric: 10.6084/m9.figshare.15020151.<br><br>Approximately 1 million sample points projection plane for all map projection we studied. It is used to plot distributions and contours of traditional differential-based (10.6084/m9.figshare.15022074), GCA and the proposed FWD-GCA (10.6084/m9.figshare.15022092) metrics.<br>Unzip all zip files to a folder named 'points_1M', and use codes in 10.6084/m9.figshare.15022095 to calculate and plot metrcis.<br>

本研究提出的基于FWD-GCA的指标的关联链接：10.6084/m9.figshare.15020151。

本研究涉及的所有地图投影均配套有约100万个采样点的投影平面数据集，可用于绘制传统基于差分的（10.6084/m9.figshare.15022074）、GCA以及本文提出的FWD-GCA三类指标的分布与等值线。

将所有压缩包解压至名为'points_1M'的文件夹中，并使用10.6084/m9.figshare.15022095对应的代码计算并绘制各类指标。