how to plot a quiver arrow with a point, direction and length!?

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Mohammadreza
Mohammadreza 2023-6-1
回答： Aditya 2023-11-17
I have a robot with sensors. These sensors can detect obstacles right in front of the sensor instead of a radius around it. So, I am trying to use the sensor location, robot orientation and the sensor detection range. How can I do that with quiver command?
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the cyclist
the cyclist 2023-6-1
Can you upload the data you have for location, orientation and range, or at least a small sample? You can use the paper clip icon in the INSERT section of the toolbar.

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Aditya
Aditya 2023-11-17
Hi Mohammadreza,
I understand that you want to plot a quiver arrow with the sensor location, robot orientation and sensor detection range.
To achieve this, you can use the following code snippet:
sensorLocation = [0, 0]; % Sensor location (x, y)
robotOrientation = 30; % robot orientation angle in degrees
sensorDetectionRange = 5; % Sensor detection range (length of arrow)
% Convert robot orientation from degrees to radians
robotOrientationRad = deg2rad(robotOrientation);
% Calculate the end point of the sensor detection range arrow
sensorEndX = sensorLocation(1) + sensorDetectionRange * cos(robotOrientationRad);
sensorEndY = sensorLocation(2) + sensorDetectionRange * sin(robotOrientationRad);
% Plotting the sensor detection range arrow
quiver(sensorLocation(1), sensorLocation(2), sensorEndX - sensorLocation(1), sensorEndY - sensorLocation(2), 'b', 'LineWidth', 3);
  • In the above code, we have first defined the sensor location, robot orientation, and sensor detection range.
  • The “quiver" function is then used to plot the arrow.
  • The arrow originates from the point defined by “sensorLocation(1)” and “sensorLocation(2)”.
  • It extends horizontally according to “sensorEndX - sensorLocation(1)” and vertically according to “sensorEndY - sensorLocation(2)”.
  • The “color” of the arrow is set to “blue”, and the “line width” is set to “3”.
Refer to the below link for more information on the “quiver” function:
Hope this helps!

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