tierced in a circle(?)

A tierce into 3 equal sized "pie slices" as per correspondence here:

_I also have another question on my mind. For a worldbuilding effort I have going on, I'm imagining a culture whose heraldry would frequently be presented in divisions of three. Specifically, I would hope to be able to produce a circular shield divided radially in three 120-degree pie slices. It seems "per pall" is the usual way to achieve this in blazon, but it always seems to set the top slice at 90 degrees. Is there any normal blazon language that specifies three 120-degree sections? (Or failing that, is there a way to hack it in DrawShield blazon?)_

(Can't use variant edges but straight edges are very easy)

Also need to think of a proper heraldic sounding term for it...

首先定位解析纹章描述中分割并生成 SVG 盾牌图像的 PHP 代码。将现有的“per pall”行为与所请求的三个相等径向部分进行比较，然后确定应如何验证语法和输出。当所请求的分割能够被一致地表达和渲染，并且可接受的纹章措辞已经确定时，即表示完成。

由索引模型根据 Issue 内容生成。