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In stagecraft, a spike is a marking, usually made with a piece of tape (although some houses (theatres) use paint pens), put on or around the stage. This marking is used to show the correct position for set pieces, furniture, actors and other items which move during the course of a performance and are required to stop or be placed in a specific location. Several companies make rolls of very thin gaffer's or paper tape marketed as "spike tape" specifically for placing spikes. In a pinch, gaffer, masking or Electrical tape can be used. When used to indicate locations under dark conditions, phosphorescent tape (sometimes referred to as "glow tape") is used for practical and safety reasons. Performer spikes are generally only used when positioning needs to be precise, either for safety or performance reasons, such as lighting specials. ==Placement== During a theatrical technical rehearsal one of the Stage management team will be ready to mark positions as required. To enable spike placement to be done quickly, staff may pre-cut small strips of tape either by scoring tape still on the roll or by cutting strips of tape and placing them onto a small piece of wood or clipboard called a spike board. When spiking a position for a performer, a small cross is typically used. For furniture pieces and scenery wagons, the marks are usually two pieces of tape laid in an "L" shape at two points or corners of the item. Usually this will be the upstage side to minimize the visual impact for the audience. In larger productions the Stage Manager will typically use different coloured spikes to differentiate the positions of various items and performers. Depending on the performance, writing will be placed on the spike to indicate what items are being marked, and in which Act and Scene the spike is used. In film and television, a generic 'X' spike for performers is typically replaced with a "T" mark, where the actors toes are placed on the horizontal bar and the vertical bar is placed between the feet. This mark is most commonly used to spike "stop points" allowing actors to travel around a set and stop in the correct position and orientation to be in focus for the cameras. The placement of spikes in film and television is typically the responsibility of a camera assistant (North America) or grip (Europe). 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Spike (stagecraft)」の詳細全文を読む スポンサード リンク
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