本文介绍了ILineDecoration接口如何管理和显示直线符号上的装饰元素。通过ILineProperties接口可以指定这些装饰元素在线条上的具体位置，支持不同类型的直线符号如CartographicLineSymbol、HashLineSymbol和MarkerLineSymbol等。
ILineDecoration maintains the list of line decoration elements that will be displayed on a line symbol via the ILineProperties interface. Line decorations are elements that are displayed at a particular location a line. You indicate the location you want the element to appear based on the percentage along the line. Thus, a position of 0 would be at the beginning, 1 would be at the end, and 0.5 would be half way.
保存着显示在line Symbol上的直线修饰元素,
Line Decorations是显示在直线特定位置的元素.
你可以通过基于直线的百分比来确定你的元素想显示的位置.
ILineProperties is a set of high order properties for some specialized line symbol interfaces, like IHashLineSymbol . These properties aren't implemented for all line symbols because they don't always apply. But for the sake of convenience they are placed in this interface so they can be accessed in a consistent manner, e.g., making a function that sets line properties for any given line symbol interface that supports ILineProperties .
| Classes | Description |
|---|---|
| CartographicLineSymbol | A line symbol for drawing solid or dashed lines. |
| HashLineSymbol | A line symbol for drawing hashed or slanted lines. |
| MarkerLineSymbol | A line symbol composed of repeating markers. |
并没有被所有的直线symbol实现
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