Tin whistle Tin whistle The tin whistle, also called the penny whistle, English flageolet, Scottish penny whistle, tin flageolet, Irish whistle, Belfast Hornpipe, (or simply ) and Clarke London Flageolet is a simple, six-holed woodwind instrument. It is a type of fipple flute, putting it in the same class as the recorder, Native American flute, and other woodwind instruments that meet such criteria. A tin whistle player is called a tin whistler or simply a whistler. The tin whistle is closely associated with Celtic music. The tin whistle in its modern form is from a wider family of fipple flutes which have
Esri TIN Esri TIN The Esri TIN format is a popular yet proprietary geospatial vector data format for geographic information system (GIS) software for storing elevation data as a triangulated irregular network. It is developed and regulated by Esri. The Esri TIN format can spatially describe elevation information including breaking edge features. Each points and triangle can carry a tag information. A TIN stored in this file format can have any shape, cover multiple regions (e.g. islands) and contain holes (e.g. lakes). In 2007 a reverse-engineered description of Esri TIN format came to light. Since then, the Virtual Terrain Project, an open-source