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																	Grasshopper roof tutorial. 
									
	
		
	
																	You can check out several of the training videos for free. 
																	In this rhino grasshopper tutorial we will model a series of shape changing elements which can be used as a parametric roof. 
																	Because each panel is a surface it s easier to use the eval surface component which returns a specific point on the surface based on it s uv mapping. 
																	First we will define 3 points and by changing the location of the points we can make a polyline. 
															
													
									
	
		
	
																	For architects and designers who work with complex shapes and surfaces grasshopper is a visual programming tool to create rules and parameters that can be easily changed and updated. 
																	U and v could vary from 0 0 to 1 0. 
																	Luis fraguada and o reilly media has published a series of training videos visual programming in rhino3d with grasshopper.