NoOverlap Rule

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: Syntax: NoOverlap [Region region_expr] expression [string]

This test fails if any source figure has non-zero intersection area with the figures associated the expression. The expression must evaluate false at every point of every source figure. This is illustrated in Figure 15.3, for no Region and an expression consisting of a single layer.

**Figure 15.3:** The *NoOverlap* test. The present figure (solid) can not intersect with figures resulting from evaluating the expression argument (dotted).
$\begin{figure} \vspace{1.5ex} \begin{center} \epsfbox{images/nooverlap.eps} \end{center}\end{figure}$

Stephen R. Whiteley 2024-09-29