Hi everyone, I'm new here and really looking forward to taking part. Firstly apologies if I'm rushing in and missing anything but it seems I really don't have much time left to hit the ground running and between work and a demanding toddler I genuinely do only have a few hours to work on this until the first deadline.
I am firstly attempting to get the simulation to run before I start modifying anything. Is it possible to get both parts to run on the same computer? I am running Ubuntu and it would be great if I could do rough working on my laptop as dragging a PI around with keyboard, mouse, screen etc is just not as practical.
I have attempted to run the java file, nothing happened. Attempting to run SimulationFull.py produces the following output:
Libraries loaded
Traceback (most recent call last):
File "SimulationFull.py", line 34, in
os.chdir(scriptDir)
OSError: [Errno 2] No such file or directory: ''
Any help appreciated.
Thanks.
I had the same problem running both parts on a mac. A simple solution is to hard code the value,
something like:
scriptDir = '/Users/thomas/.....formulapi'
Great, so I need /home/gareth/Documents/Personal\ Files/Programming/Python/Formula\ PI/formulapi
Not a mouthful at all!
I wonder why though, both Ubuntu and Raspbian are debian based so what differs?
So the SimulationFull.py works fine now and the java file runs but it quits saying it can't detect the stream. Anyone have any idea how to configure this? The .py is already set for localhost.
Did you start the streaming before running
SimulationFull.py?If you did check the terminal output from the Java program for errors. You may need to run the Java part using
sudopermissions to allow it to open the network port for streaming.Yes I start java first and have now tried with sudo. It shows the following then several sets of bot settings:
Start [1] : [550.0,60.0]
Start [2] : [550.0,90.0]
Start [3] : [550.0,120.0]
Start [4] : [550.0,150.0]
Start [5] : [550.0,180.0]
It does load the gui fine. I have tried both 127.0.0.1 and my actual IP address in the py script but no luck.
After you press start you should see these two lines:
Do you see these lines, or any others?
If that appears to work try opening this URL in your web browser:
http://127.0.0.1:10000/view.pngIf everything is working you should see the same image as shown in the top left of the simulator.
It does not say this at all. Below is the text in full:
Screen: [1920x1080]
Loading File: [file:///home/gareth/Documents/Personal%20Files/Programming/Python/Formula%20PI/formulapi/Simulation/tracks/final.trk]
Start [1] : [550.0,60.0]
Start [2] : [550.0,90.0]
Start [3] : [550.0,120.0]
Start [4] : [550.0,150.0]
Start [5] : [550.0,180.0]
Bot Settings:
tyre_diameter : 8.4
bount_length : 19
motor_ref_rpm : 180
body_width : 8.4
bound_width : 18
motor_ref_volt : 6
tyre_width : 4.2
motor_accel : 0.05
motor_max_volt : 10.0
motor_decel : -0.01
Bot Settings:
tyre_diameter : 8.4
bount_length : 19
motor_ref_rpm : 180
body_width : 8.4
bound_width : 18
motor_ref_volt : 6
tyre_width : 4.2
motor_accel : 0.05
motor_max_volt : 10.0
motor_decel : -0.01
Bot Settings:
tyre_diameter : 8.4
bount_length : 19
motor_ref_rpm : 180
body_width : 8.4
bound_width : 18
motor_ref_volt : 6
tyre_width : 4.2
motor_accel : 0.05
motor_max_volt : 10.0
motor_decel : -0.01
Bot Settings:
tyre_diameter : 8.4
bount_length : 19
motor_ref_rpm : 180
body_width : 8.4
bound_width : 18
motor_ref_volt : 6
tyre_width : 4.2
motor_accel : 0.05
motor_max_volt : 10.0
motor_decel : -0.01
Bot Settings:
tyre_diameter : 8.4
bount_length : 19
motor_ref_rpm : 180
body_width : 8.4
bound_width : 18
motor_ref_volt : 6
tyre_width : 4.2
motor_accel : 0.05
motor_max_volt : 10.0
motor_decel : -0.01
Bot Settings:
tyre_diameter : 8.4
bount_length : 19
motor_ref_rpm : 180
body_width : 8.4
bound_width : 18
motor_ref_volt : 6
tyre_width : 4.2
motor_accel : 0.05
motor_max_volt : 10.0
motor_decel : -0.01
Video Stream Settings:
port : 10000
res : 160x120
autostart : false
[4.199999809265137,0.0]
[3.99443718704001,1.297871317434465]
[3.3978712220670335,2.4686979475172475]
[2.4686979475172475,3.3978712220670335]
[1.2978713174344652,3.99443718704001]
[2.571758161418022E-16,4.199999809265137]
[-1.2978713174344647,3.9944371870400106]
[-2.468697947517247,3.3978712220670335]
[-3.397871222067033,2.468697947517248]
[-3.99443718704001,1.2978713174344654]
[-4.199999809265137,5.143516322836044E-16]
[-3.99443718704001,-1.2978713174344663]
[-3.3978712220670335,-2.468697947517247]
[-2.468697947517248,-3.397871222067033]
[-1.2978713174344656,-3.99443718704001]
[-7.715274484254065E-16,-4.199999809265137]
[1.2978713174344643,-3.9944371870400106]
[2.4686979475172466,-3.397871222067034]
[3.397871222067033,-2.4686979475172484]
[3.99443718704001,-1.2978713174344658]
That is very odd, it sounds like it is not creating the stream for some reason.
Can you take a screenshot / photo of the simulator GUI after you have pressed the start button?
Once upon a time I lived for coding and techhie projects, I could spend an entire weekend working on something and crack it in one go. Now I have a family and a young son with suspected autism, I go to work, I get home, I have to deal with bedtime, tidying up etc. By the time my days are done and I have some me time I'm shattered and my focus is not what it was. I can be so keen to get into something I miss the obvious. Didn't know I had to push the start button. Doh!
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