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数据模型设计器的画布中以圆圈代表数据表也称作“ 节点 ”，圆圈之间的箭头代表数据过滤的方向，在每个圆圈周围会显示表的基数。
我们知道基数表示在数据过滤时哪个表是“ 1 ” 方，哪个表是“ N ”方。这个很重要，因为数据过滤时，总是“ 1 ” 方的表过滤“ N ”方的表。
也就是说，在仪表板中我们将“ 1 ”的一方作为分类或系列，将“ N ”的一方作为数值。有关表关系的更多介绍，请见表关系说明。
选择菜单中的模型设置 >视图设置，右侧弹出视图设置的设置项目，可以设置节点名称和基数隐藏与否。
隐藏节点名称后当通过滚轮缩小画布视图时，节点名称将不显示。
隐藏基数时，将不显示圆圈周围的基数。
左图为显示基数效果，右图为隐藏基数后效果。
（当视图缩小到一定程度后，即使开启了显示基数，基数也会隐藏）
