Why does my Script use So much Ram and run So Slow? Is it the Sweeps?

[Anonymous]

Hi Guys and Girls,

I hope this question is not to basic but I just can not work out why this script runs so slowly and uses so much ram.

The following script creates a single body and performs multiple sweeps in loops.

Disclammer: Its my first day scripting in fusion360 + I am new to python.

Why so much ram (~8 Gb for 100 - 200 sweeps) and why so slow? Is the script fine and this is just how it should be or is there something I could do to speed things up and more importantly increase the number of sweeps I can perform? I only have 16Gb of ram, and was hopeing to be able to do 1000-2000 sweeps in a single script.

kind regards,

Trent

import adsk.core, adsk.fusion, traceback

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)

# Draw two connected lines.

lines = sketch.sketchCurves.sketchLines;

#Create our block

# Draw a rectangle by two points the extrude.

#Define size

halfXSize = 10 #cm

halfYSize = 10 #cm

zSize = 1 #cm

recLines = lines.addTwoPointRectangle(adsk.core.Point3D.create(-halfXSize, -halfYSize, 0), adsk.core.Point3D.create(halfXSize, halfYSize, 0))

# Get the profile defined by the rectangle

prof = sketch.profiles.item(0)

# Create an extrusion input

extrudes = rootComp.features.extrudeFeatures

extInput = extrudes.createInput(prof, adsk.fusion.FeatureOperations.NewBodyFeatureOperation)

distance = adsk.core.ValueInput.createByReal(zSize)

extInput.setDistanceExtent(False, distance)

# Create the extrusion

ext = extrudes.add(extInput)

#define shape of holes - circular for testing purposes

# Create sketch cuting holes

#define focalPoint

focalPoint = 20 #distance of focal point from slab = focalpoint - zSize (ie 19)

#Circle

#sketches = rootComp.sketches

#sketch = sketches.add(rootComp.xYConstructionPlane)

#sketchCircles = sketch.sketchCurves.sketchCircles

#centerPoint = adsk.core.Point3D.create(0, 0, focalPoint) # position of "focal point"

#circle = sketchCircles.addByCenterRadius(centerPoint, 0.25)

#prof2 = sketch.profiles.item(0)

#Polygon - no function for polygon in API....ok, from indivifdual lines

sketches = rootComp.sketches;

xyPlane = rootComp.xYConstructionPlane

sketch = sketches.add(xyPlane)

lines = sketch.sketchCurves.sketchLines;

line1 = lines.addByTwoPoints(adsk.core.Point3D.create(0, .25, focalPoint), adsk.core.Point3D.create(.2165, .125, focalPoint))

line2 = lines.addByTwoPoints(line1.endSketchPoint, adsk.core.Point3D.create(.2165, -.125, focalPoint))

line3 = lines.addByTwoPoints(line2.endSketchPoint, adsk.core.Point3D.create(0, -.25, focalPoint))

line4 = lines.addByTwoPoints(line3.endSketchPoint, adsk.core.Point3D.create(-.2165, -.125, focalPoint))

line5 = lines.addByTwoPoints(line4.endSketchPoint, adsk.core.Point3D.create(-.2165, .125, focalPoint))

line6 = lines.addByTwoPoints(line5.endSketchPoint, adsk.core.Point3D.create(0, .25, focalPoint))

prof2 = sketch.profiles.item(0)

#draw lines from focal point to other side of  and cut hole along line

# Create a new sketch on the xy plane.

sketches = rootComp.sketches

xyPlane = rootComp.xYConstructionPlane

sketch = sketches.add(xyPlane)

#Draw two connected lines.

lines = sketch.sketchCurves.sketchLines

#factor to adjust the centre of lines from the focal point at the  surface

holeSeparation = 0.8 #cm

#No.of holes each side of centre

xHoles = 2 #cm

yHoles = 3

for i in range(-xHoles,xHoles): #iterate nested loop across all hole positions

for j in range(-yHoles,yHoles):

line1 = lines.addByTwoPoints(adsk.core.Point3D.create(0, 0, focalPoint), adsk.core.Point3D.create(i*holeSeparation, j*holeSeparation, 0)) #Note: add variable for focal point

path = rootComp.features.createPath(line1);

sweeps = rootComp.features.sweepFeatures;

sweepInput = sweeps.createInput(prof2, path, adsk.fusion.FeatureOperations.CutFeatureOperation);

sweep = sweeps.add(sweepInput)

for i in range(-xHoles,xHoles): #Seconf set of loops for when the holes are tessalating polygons

for j in range(-yHoles,yHoles):

line1 = lines.addByTwoPoints(adsk.core.Point3D.create(0, 0, focalPoint), adsk.core.Point3D.create((i+0.5)*holeSeparation, (j+0.5)*holeSeparation, 0)) #Note: add variable for focal point

path = rootComp.features.createPath(line1);

sweeps = rootComp.features.sweepFeatures;

sweepInput = sweeps.createInput(prof2, path, adsk.fusion.FeatureOperations.CutFeatureOperation);

sweep = sweeps.add(sweepInput);

except:

if ui:

ui.messageBox('Failed:\n{}'.format(traceback.format_exc()))

[ekinsb]

I don't see any obvious issues with your script.  We need to investigate it on our side to see if there's a problem with the API or within Fusion.  Thanks for reporting this and it looks like you're doing something interesting.

[Anonymous]

Hi Brian,

Thanks for the fast responce, I just realised that I did not explicidly state that I want to increase the variables xHoles and yHoles from 2 and 3 to the order of 50.

Kind regards,

Trent.