Constructive solid geometry

Constructive solid geometry (CSG) (formerly called computational binary solid geometry) is a technique used in solid modeling. Constructive solid geometry allows a modeler to create a complex surface or object by using Boolean operators to combine objects. Often CSG presents a model or surface that appears visually complex, but is actually little more than cleverly combined or decombined objects.

In 3D computer graphics and CAD CSG is often used in procedural modeling. CSG can also be performed on polygonal meshes, and may or may not be procedural and/or parametric.

Contrast CSG with polygon mesh modeling and box modeling.

Workings of CSG

The simplest solid objects used for the representation are called primitives. Typically they are the objects of simple shape: cuboids, cylinders, prisms, pyramids, spheres, cones. The set of allowable primitives is limited by each software package. Some software packages allow CSG on curved objects while other packages do not.

It is said that an object is constructed from primitives by means of allowable operations, which are typically Boolean operations on sets: union, intersection and difference, as well as geometric transformations of those sets.

CSG

CSG may stand for:

Saint-Jean-Chrysostome Aerodrome

Saint-Jean-Chrysostome Aerodrome, (TC LID: CSG5), is located 2.6 nautical miles (4.8 km; 3.0 mi) southeast of the Saint-Jean-Chrysostome district of Lévis, Quebec, Canada. It is under a private use by a parachuting school.

References

Carrier Strike Group 10

Carrier Strike Group 10, abbreviated as CSG-10 or CARSTRKGRU 10, is a U.S. Navy carrier strike group. Carrier strike groups gain and maintain sea control as well as project naval airpower ashore.

The aircraft carrier USS Dwight D. Eisenhower (CVN-69) is the strike group's current flagship, and as of 2015, other units assigned to the group include Carrier Air Wing Three embarked on board Eisenhower, the Ticonderoga-class cruiser San Jacinto, and Destroyer Squadron 26.

Through Cruiser-Destroyer Group 2 and Cruiser-Destroyer Flotilla 2, the group traces its history to the formation of Destroyer Flotilla 2 during the First World War. From the 1970s, the group has made scores of deployments to the Mediterranean and Middle East, usually led by a large-deck aircraft carrier. Between 2004 and 2014, the group made four deployments to the U.S. Fifth Fleet operating in the Persian Gulf and North Arabian Sea. The group's aircraft flew over 10,800 air combat missions in support of coalition ground forces in Iraq and Afghanistan. The group's surface warships were also involved in several high-profile anti-piracy and maritime security operations. The group participated in two major multi-lateral exercises, Operation Brewing Storm 2005 and Operation Bold Step 2007.