Method snap

imagepy/tools/Measure/area_tol.py:32–39

(self, x, y, lim)

        self.buf = []
        
    def snap(self, x, y, lim):
        cur, cid, minl = None, None, 1000
        for pg in self.body:
            for i in pg:
                d = (i[0]-x)**2+(i[1]-y)**2
                if d < minl:cur,cid,minl = pg,i,d
        if minl**0.5>lim:return None
        return cur, cur.index(cid)

    def pick(self, x, y, lim):
        rst = self.snap(x, y, lim)