Python 2 -> Python 3 - Custom Curve Highlight - Draw Foreground

Hello,

I’m updating some of my older scripts and having an issue in Python 3 related to the following lines, I have a single input value in an input “T” for “Thickness”, the input Type is an Int with List Access.

This code works fine in the old script component. Is this a Python2 → Python3 syntax thing or related to the script editor? @eirannejad

The intent is to draw curves with a custom lineweight and thickness to the foreground of the viewport.

               thickness = self.t[i % len(self.t)] if self.t else None

Error:

1. Error running script: 'int' object is not subscriptable

Full Code:

from ghpythonlib.componentbase import executingcomponent as component
import Rhino
import System

__author__ = "Michael Vollrath"
__version__ = "2023.08.01"
# Made With <3 In Dallas, TX
# Modification of script originally created by Seghier Khaled

ghenv.Component.Name = "Custom Preview Lineweight"
ghenv.Component.NickName = "CPL"
ghenv.Component.Description = "Custom Preview component allowing thickness and color preview of curves"

ghenv.Component.Params.Input[0].Name = "Curve"
ghenv.Component.Params.Input[0].NickName = "C"
ghenv.Component.Params.Input[0].Description = "Input Curves"

ghenv.Component.Params.Input[1].Name = "Thickness"
ghenv.Component.Params.Input[1].NickName = "T"
ghenv.Component.Params.Input[1].Description = "Curve Thickness"

ghenv.Component.Params.Input[2].Name = "Color"
ghenv.Component.Params.Input[2].NickName = "Pc"
ghenv.Component.Params.Input[2].Description = "Preview Color"


class CurveColor(component):

    def RunScript(self, C, T, Pc):
        self.C = C
        self.RGB = Pc
        self.t = T
        if not self.C:
            return

    def DrawViewportWires(self, arg):
        if not self.C:
            return

        # Check if self.C is a list
        if isinstance(self.C, list):
            for i, curve in enumerate(self.C):
                # Get the corresponding thickness and RGB values using modulo to wrap the lists
                thickness = self.t[i % len(self.t)] if self.t else None
                rgb = self.RGB[i % len(self.RGB)] if self.RGB else None
                self.DrawCurveWithColor(arg, curve, thickness, rgb)
        else:
            # Single curve case
            self.DrawCurveWithColor(arg, self.C, self.t[0] if self.t else None, self.RGB[0] if self.RGB else None)

    def DrawCurveWithColor(self, arg, curve, thickness=None, rgb=None):
        if not curve:
            return
        if thickness is None:
            thickness = self.t
        if rgb is None:
            rgb = self.RGB
        arg.Display.DrawCurve(curve, rgb, thickness)

    # Handle Draw Foreground Events
    def __exit__(self):
        Rhino.Display.DisplayPipeline.DrawForeground -= self.DrawViewportWires

    def __enter__(self):
        Rhino.Display.DisplayPipeline.DrawForeground += self.DrawViewportWires

@AndersDeleuran have you come across this by chance?

Thank you all for your response!

10 posts - 5 participants

Read full topic