Adding matlab file for plotting motor specs

create_motors.m

@@ -0,0 +1,24 @@
+% Creates a list of motor objects
+function [motors] = create_motors()
+
+    % 1st column: max torque
+    % 2nd col: max speed
+    % 3rd col: weight
+    motor_specs_list = [
+        1.76, 251, 205;
+        0.637, 380, 160;
+        0.69, 216, 136;
+        0.6, 500, 98;
+        1.18, 350, 98;
+        0.98, 210, 96;
+        0.69, 150, 160
+    ];
+
+    motors = [];
+    s = size(motor_specs_list);
+    number_of_motors = s(1);
+    for i=1:number_of_motors
+        new_motor = motor(motor_specs_list(i,1), motor_specs_list(i,2), motor_specs_list(i,3));
+        motors = [motors, new_motor];
+    end
+end

motor.m

@@ -0,0 +1,16 @@
+classdef motor
+    properties
+        torque;
+        speed;
+        weight;
+    end
+
+    methods
+        function obj = motor(torque, speed, weight)
+            obj.torque = torque;
+            obj.speed = speed;
+            obj.weight = weight;
+        end
+    end
+end
+

motor_specs.m

@@ -0,0 +1,47 @@
+clear;
+close all;
+
+% 1st column: max torque
+% 2nd col: max speed
+% 3rd col: weight
+motor_specs_list= [
+    1.76, 251, 205;
+    0.637, 380, 160;
+    0.69, 216, 136;
+    0.6, 500, 98;
+    1.18, 350, 98;
+    0.98, 210, 96;
+    0.69, 150, 160
+];
+
+torque = motor_specs_list(:,1);
+speed = motor_specs_list(:,2);
+weight = motor_specs_list(:,3);
+
+% Plot max torque vs max speed
+plot(torque, speed, '.r', 'MarkerSize', 20);
+title('Max Torque vs Max Speed');
+xlabel('Max Torque (Nm)');
+ylabel('Max Speed (rpm)');
+axis([0, 2, 0, 600]);
+
+% Plot max torque vs weight
+figure;
+plot(torque, weight, '.r', 'MarkerSize', 20);
+title('Max Torque vs Weight');
+xlabel('Max Torque (Nm)');
+ylabel('Weight (g)');
+axis([0, 2, 0, 300]);
+
+% Plot motot curves (torque vs speed)
+figure
+s = size(torque);
+for i=1:s(1)
+    txt = ['motor ',num2str(i)];
+    plot([0,torque(i)],[speed(i),0],'--', 'DisplayName', txt);
+    hold on;
+end
+title('Motor curves');
+xlabel('Torque (Nm)');
+ylabel('Speed (rpm)');
+legend show;