======Конструктор RailTpkItem(Double)======
  * **Пространство имен:** [[developers:references:topomatic.alg.runtime|Topomatic.Alg.Runtime]]
  * **Сборка:** Topomatic.Alg.Runtime (в Topomatic.Alg.Runtime.dll)
=====Синтаксис=====
<code csharp>public  RailTpkItem(double p)</code>
**Параметры**
  * //p//
    * Тип: [[developers:references:system.double|System.Double]]