klowrey / mujoco.jl Goto Github PK

Hi, I am using MuJoCo in OSX with Julia-v0.6.4. Before it worked well but today after I update the packages with "Pkg.update()", it first has an error with not finding the "Libdl" module. Then I fix it by changing the "using Libdl" to "using Base.Libdl" in the MuJoCo.jl. However, now it has another bug as followed:

The convenience is nice as the values in mjData aren't value until mj_forward is called (and reset as an extra precaution), but that mutates the data the Ptr argument refers to.

Options:

1. never
2. only iff own==true

There is no example on this but is there any easy way to visualize a simulation

I am on a Mac and MuJoCo by itself and every other part of the demo code in the readme works except these lines of code and their following errors:

mj.set(m, :opt, :timestep, -0.002)

ERROR: MethodError: no method matching update_ptr(::Base.RefValue{mjModel}, ::UInt64, ::Float64)
Closest candidates are:
update_ptr(::Ptr, ::Integer, ::Float64) at /Users/powers/.julia/packages/MuJoCo/GRTFJ/src/mjextra.jl:152
update_ptr(::Ptr, ::Integer, ::Integer) at /Users/powers/.julia/packages/MuJoCo/GRTFJ/src/mjextra.jl:149
update_ptr(::Ptr, ::Integer, ::StaticArrays.SArray{Tuple{S},T,1,S} where T where S) at /Users/powers/.julia/packages/MuJoCo/GRTFJ/src/mjextra.jl:155
Stacktrace:
[1] set(::jlModel, ::Symbol, ::Symbol, ::Float64) at /Users/powers/.julia/packages/MuJoCo/GRTFJ/src/mjextra.jl:204
[2] top-level scope at none:0

m.m[].opt.timestep = 0.002

ERROR: setfield! immutable struct of type mjOption cannot be changed
Stacktrace:
[1] setproperty!(::mjOption, ::Symbol, ::Float64) at ./sysimg.jl:19
[2] top-level scope at none:0

d.qpos[:] = rand(nq)

ERROR: UndefVarError: nq not defined
Stacktrace:
[1] top-level scope at none:0

Hi. If one was to render the output to a screen what would they have to do?