Fusion 360 equation driven curve API example

Fusion 360 equation driven curve API example

# For more details see: https://capolight.wordpress.com/2018/07/02/how-to-sketch-equation-curves-in-fusion-360/
import adsk.core, adsk.fusion, adsk.cam, traceback, math

def run(context):
	ui = None
	try:
		app = adsk.core.Application.get()
		ui = app.userInterface
		design = app.activeProduct
		# Get the root component of the active design.
		rootComp = design.rootComponent
		# Create a new sketch on the xy plane.
		sketches = rootComp.sketches
		xyPlane = rootComp.xYConstructionPlane
		sketch = sketches.add(xyPlane)
		points = adsk.core.ObjectCollection.create() # Create an object collection for the points.
		
		# Enter variables here. E.g. E = 50
		startRange = 0 # Start of range to be evaluated.
		endRange = 2*math.pi # End of range to be evaluated.
		splinePoints = 100 # Number of points that splines are generated.
		# WARMING: Using more than a few hundred points may cause your system to hang.
		i = 0

		while i <= splinePoints:
			t = startRange + ((endRange - startRange)/splinePoints)*i
			xCoord = (math.sin(2*t))
			yCoord = (math.sin(3*t))
			zCoord = (2**t)
                 
			points.add(adsk.core.Point3D.create(xCoord,yCoord,zCoord))
			i = i + 1
			
		#Generates the spline curve
		sketch.sketchCurves.sketchFittedSplines.add(points)
	
	# Error handeling
	except:
		if ui:
			ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))