这个内部函数以一个几何图形的 WKT 表示（而不是几何图形本身）以及作为 SVG 属性的颜色和线宽为输入。

This internal function takes the WKT representation of a geometry as input -- not the geometry itself -- along with the color and line width for the respective SVG attributes.

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几何图形与它的非空间属性之间的连接是通过 “打开” 几何图形的 SVG 元素，并添加 onmouseover 和 onmouseout 属性来建立的。

The connection between a geometry and its non-spatial attributes is established by "opening" the SVG element of a geometry and adding onmouseover and onmouseout attributes.

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备注：IBM DB2 Spatial Extender 提供了一个原生函数来确定给定的几何图形是否落入另一个几何图形边界内。

Note: IBM DB2 Spatial Extender provides a native function to find whether a given geometry falls within the boundaries of another geometry.

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