logobot simulator

[Damian Axford]

got distracted for a bit...  started making an in-browser simulator for Logobot, that uses the same command syntax as the real Logobot.  Got a basic scene going, with position info, mouse controls and animation loop:

The objective is to have a sensible framework for demonstrating/testing the more complex commands without needing a physical robot on hand.  Javascript being fairly easy to port to Arduino/C.

Might go nowhere, might turn out to be useful... who knows :)

[Damian Axford]

made it load the STLs from the proper bot ... hehe :)

[Robert Longbottom]

Cute :-)

On 23/07/2015 20:53, Damian Axford wrote:

made it load the STLs from the proper bot ... hehe :)

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[Jamie Osborne]

Looks awesome!

Jamie

On 23 Jul 2015, at 20:53, Damian Axford <dam...@axford.me.uk> wrote:

made it load the STLs from the proper bot ... hehe :)

[Damian Axford]

Got a bit further with the simulator last night...  

• Supports the drive/turn and driveTo commands
• Simulates wheel and bot movement accurately
• Has early support for velocity/acceleration
• Command queue, same as the firmware
  
• If you click on the ground, it'll use driveTo to turn and drive to that location

[Damian Axford]

now support pen up/down (with basic servo model) and draws!!  ...using a low res texture map (1 pixel = 1mm2)

[Robert Longbottom]

Nice, when is the first code release?

And my real one is still better ;-). It's too easy in the perfect world of simulators.

On 24 July 2015 12:30:25 Damian Axford <dam...@axford.me.uk> wrote:

now support pen up/down (with basic servo model) and draws!!  ...using a low res texture map (1 pixel = 1mm2)

[Damian Axford]

video:

https://youtu.be/VIqhwQLaYjE

:)

[Robert Longbottom]

Very nice.  But what does the waddle button do???

On 24 July 2015 16:02:46 Damian Axford <dam...@axford.me.uk> wrote:

video:

https://youtu.be/VIqhwQLaYjE

:)

[Damian Axford]

makes it waddle :)  just generates random target rotations for each wheel...  very useful for validating that the physical simulation is working properly.

[Damian Axford]

committed the simulator....   and it seems to work just fine via rawgithub:

https://rawgit.com/snhack/LogoBot/master/software/simulator/index.html

[Robert Longbottom]

Very nice, I will have a look at the code later. 

I think (can't quite tell from random clicking on the screen) you need to implement an improvement I've just committed to the firmware to pick the shortest angle when doing turns in driveTo().  See the commit with comment "Optimise turn to take the shortest angle"

On 24/07/2015 18:07, Damian Axford wrote:

committed the simulator....   and it seems to work just fine via rawgithub:

https://rawgit.com/snhack/LogoBot/master/software/simulator/index.html

[Damian Axford]

yes, i've been meaning to do that - at least now I can copy your code :)

just committed an update that supports an arcTo function.  now it's validated in the simulator, I'll look at porting the logic into the firmware.

[Damian Axford]

simulator enhancement.... better pen simulation, now with anti-aliasing :)

[Damian Axford]

and text support...

[Robert Longbottom]

Very smart.  The raw github link works for me, but when I open the local html file in Chrome it doesn't load the .stl files so I just get a solid base and wheels.  Some error about cross origin request not allowed.  Everything works though, it just doesn't look pretty.

On 24/07/2015 21:45, Damian Axford wrote:

and text support...

[Damian Axford]

Ta.. And yeah, it needs to be accessed via a web server to avoid the cross origin crud. Stupid security, we should all just leave free with the viruses like some tech hippee utopia

[Damian Axford]

...with curvy letters, using the ARC command: