盆景,特别是树桩盆景,都有一个最佳欣赏面。精确地讲,就是要有一个比较固定的欣赏位置,才能将作品的精华尽收眼底,一览无余。这就涉及到线条的透视变化,也就出现了前、后、左、右四岐枝法如何布局才更合理的问题。前枝,是指与欣赏者视点接触最近的正前方枝。顶心枝,是指正好落在视中线与视平线相交点,也即是心点位置上的枝(图1、图2)。顶心枝,顾 Bonsai, especially stump bonsai, have an optimal viewing surface. Precisely speaking, is to have a relatively fixed position to appreciate the essence of the work, glance. This involves the perspective of line changes, also appeared before and after the left and right four branches of law how to lay out more reasonable issue. Front branch, refers to the viewer’s point of contact with the nearest front branch. Top twig, refers to just fall on the line of sight and the horizon line of intersection, which is the location of the heart on the branch (Figure 1, Figure 2). Top heart branches, Gu