MNT: lint cleanup and adding 3dof to init

-MNT: cleaned up PointMassRocket rocket.py for linters.
-ENH: including PointMassMotor in motors and rocketpy __init__.py
-MNT: adopting to structural changes in 3dof on the 3_DOF_TRIAL.ipynb
-MNT: including pointmassmotor in settings.json as a spell word

Author: aZira371

.vscode/settings.json

@@ -239,6 +239,7 @@
         "outerboundaryis",
         "overshootable",
         "planform",
+        "pointmassmotor",
         "polystyle",
         "powerseries",
         "Prandtl",

docs/examples/3_DOF_TRIAL.ipynb

@@ -11,7 +11,7 @@
     "import numpy as np\n",
     "from scipy.signal import savgol_filter\n",
     "from rocketpy.rocket.rocket import PointMassRocket\n",
-    "from rocketpy import Flight, Environment, Function\n"
+    "from rocketpy import Flight, Environment, Function, PointMassMotor\n"
    ]
   },
   {
@@ -106,21 +106,9 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 5,
    "metadata": {},
-   "outputs": [
-    {
-     "ename": "NameError",
-     "evalue": "name 'PointMassMotor' is not defined",
-     "output_type": "error",
-     "traceback": [
-      "\u001b[31m---------------------------------------------------------------------------\u001b[39m",
-      "\u001b[31mNameError\u001b[39m                                 Traceback (most recent call last)",
-      "\u001b[36mCell\u001b[39m\u001b[36m \u001b[39m\u001b[32mIn[3]\u001b[39m\u001b[32m, line 6\u001b[39m\n\u001b[32m      3\u001b[39m \u001b[38;5;28;01mdef\u001b[39;00m\u001b[38;5;250m \u001b[39m\u001b[34mthrust_profile\u001b[39m(t):\n\u001b[32m      4\u001b[39m     \u001b[38;5;28;01mreturn\u001b[39;00m \u001b[32m250\u001b[39m \u001b[38;5;28;01mif\u001b[39;00m \u001b[32m0\u001b[39m <= t <= \u001b[32m3\u001b[39m \u001b[38;5;28;01melse\u001b[39;00m \u001b[32m0\u001b[39m\n\u001b[32m----> \u001b[39m\u001b[32m6\u001b[39m motor = \u001b[43mPointMassMotor\u001b[49m(\n\u001b[32m      7\u001b[39m     thrust_source=thrust_profile,\n\u001b[32m      8\u001b[39m     dry_mass=\u001b[32m1.0\u001b[39m,\n\u001b[32m      9\u001b[39m     thrust_curve=thrust_profile,\n\u001b[32m     10\u001b[39m     propellant_initial_mass=\u001b[32m0.5\u001b[39m,\n\u001b[32m     11\u001b[39m     propellant_final_mass=\u001b[32m0.0\u001b[39m,\n\u001b[32m     12\u001b[39m     burn_time=\u001b[32m3.0\u001b[39m\n\u001b[32m     13\u001b[39m )\n",
-      "\u001b[31mNameError\u001b[39m: name 'PointMassMotor' is not defined"
-     ]
-    }
-   ],
+   "outputs": [],
    "source": [
     "# Define Motor\n",
     "# Thrust profile: constant for 3 seconds\n",
@@ -130,7 +118,6 @@
     "motor = PointMassMotor(\n",
     "    thrust_source=thrust_profile,\n",
     "    dry_mass=1.0,\n",
-    "    thrust_curve=thrust_profile,\n",
     "    propellant_initial_mass=0.5,\n",
     "    propellant_final_mass=0.0,\n",
     "    burn_time=3.0\n",
@@ -139,9 +126,21 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 4,
+   "execution_count": 6,
    "metadata": {},
-   "outputs": [],
+   "outputs": [
+    {
+     "ename": "TypeError",
+     "evalue": "PointMassRocket.__init__() got an unexpected keyword argument 'drag_coefficient'",
+     "output_type": "error",
+     "traceback": [
+      "\u001b[31m---------------------------------------------------------------------------\u001b[39m",
+      "\u001b[31mTypeError\u001b[39m                                 Traceback (most recent call last)",
+      "\u001b[36mCell\u001b[39m\u001b[36m \u001b[39m\u001b[32mIn[6]\u001b[39m\u001b[32m, line 2\u001b[39m\n\u001b[32m      1\u001b[39m \u001b[38;5;66;03m# Define Rocket\u001b[39;00m\n\u001b[32m----> \u001b[39m\u001b[32m2\u001b[39m rocket = \u001b[43mPointMassRocket\u001b[49m\u001b[43m(\u001b[49m\u001b[43mmass\u001b[49m\u001b[43m=\u001b[49m\u001b[32;43m2.0\u001b[39;49m\u001b[43m,\u001b[49m\u001b[43m \u001b[49m\u001b[43mdrag_coefficient\u001b[49m\u001b[43m=\u001b[49m\u001b[32;43m0.75\u001b[39;49m\u001b[43m)\u001b[49m\n\u001b[32m      3\u001b[39m rocket.add_motor(motor)\n",
+      "\u001b[31mTypeError\u001b[39m: PointMassRocket.__init__() got an unexpected keyword argument 'drag_coefficient'"
+     ]
+    }
+   ],
    "source": [
     "# Define Rocket\n",
     "rocket = PointMassRocket(mass=2.0, drag_coefficient=0.75)\n",

rocketpy/__init__.py

@@ -18,6 +18,7 @@
     MassFlowRateBasedTank,
     Motor,
     SolidMotor,
+    PointMassMotor,
     SphericalTank,
     Tank,
     TankGeometry,

rocketpy/motors/__init__.py

@@ -4,6 +4,7 @@
 from .liquid_motor import LiquidMotor
 from .motor import GenericMotor, Motor
 from .solid_motor import SolidMotor
+from .pointmassmotor import PointMassMotor
 from .tank import (
     LevelBasedTank,
     MassBasedTank,

rocketpy/motors/pointmassmotor.py

@@ -1,8 +1,8 @@
 from functools import cached_property
+
 import numpy as np
-import csv
-import math 
-from typing import Callable # Import Callable from the typing module
+
+from typing import Callable 
 
 from rocketpy.mathutils.function import Function, funcify_method
 from .motor import Motor 

rocketpy/rocket/rocket.py

@@ -2022,38 +2022,27 @@ def __init__(self, mass, radius=0.05):
                 power_off_drag=power_off_drag,
                 power_on_drag=power_on_drag,
         )
-    @cached_property
-    @funcify_method("Time (s)", "I_xx (kg·m²)")
+
     def I_11(self) -> Function:
         """Returns the moment of inertia around the x-axis for a point mass (always 0)."""
         return Function(0)
 
-    @cached_property
-    @funcify_method("Time (s)", "I_22 (kg·m²)")
     def I_22(self) -> Function:
         """Returns the moment of inertia around the y-axis for a point mass (always 0)."""
         return Function(0)
 
-    @cached_property
-    @funcify_method("Time (s)", "I_33 (kg·m²)")
     def I_33(self) -> Function:
         """Returns the moment of inertia around the z-axis for a point mass (always 0)."""
         return Function(0)
 
-    @cached_property
-    @funcify_method("Time (s)", "I_12 (kg·m²)")
     def I_12(self) -> Function:
         """Returns the product of inertia I_xy for a point mass (always 0)."""
         return Function(0)
 
-    @cached_property
-    @funcify_method("Time (s)", "I_13 (kg·m²)")
     def I_13(self) -> Function:
         """Returns the product of inertia I_xz for a point mass (always 0)."""
         return Function(0)
 
-    @cached_property
-    @funcify_method("Time (s)", "I_23 (kg·m²)")
     def I_23(self) -> Function:
         """Returns the product of inertia I_yz for a point mass (always 0)."""
         return Function(0)