Hatch tolerance Dynamo

Civil3D
,
2

My only thoughts would be to convert the polycurves to verticies with pretty tight spacing and then creating a closed curve by using a minimum distance between points, lines between points, and closing them into a curve, kind of similar to how the code works in the popular “groupCurves” function works in archi-lab:

#join/group curves function
def groupCurves(Line_List): 
	ignore_distance = 0.1 # Assume points this close or closer to each other are touching 
	Grouped_Lines = [] 
	Queue = set() 
	while Line_List: 
		Shape = [] 
		Queue.add(Line_List.pop()) # Move a line from the Line_List to our queue 
		while Queue: 
			Current_Line = Queue.pop() 
			Shape.append(Current_Line) 
			for Potential_Match in Line_List: 
				Points = (Potential_Match.StartPoint, Potential_Match.EndPoint)
				for P1 in Points: 
					for P2 in (Current_Line.StartPoint, Current_Line.EndPoint): 
						distance = P1.DistanceTo(P2) 
						if distance <= ignore_distance: 
							Queue.add(Potential_Match) 
			Line_List = [item for item in Line_List if item not in Queue]
		Grouped_Lines.append(Shape) 
	return Grouped_Lines

OUT = groupCurves(inputCurves)

Creating code that would create a best fit hatch without a closed curve is a difficult thing to do. But probably possible. It looks like you can set a gap tolerance directly in AutoCAD.

This Mesh Toolkit looks really promising. I may try playing with it to see if it can provide a solution.
Dynamo Mesh Toolkit

3 Likes