Got GLPlot working, it's awesome! The following does a movie of a
solution to wave equation on a square using latest version of ApproxFun (the
color is weird since I haven't figured that part out yet):
window = createdisplay(w=1000,h=1000,eyeposition=Vec3(1,1,1), lookat=Vec3(0))
function zcolor(i, j, t)
x = float32(i - 0.5)
z = float32(j - 0.5)
radius = sqrt((x * x) + (z * z))
r = sin(10.0f0 * radius + t)
g = cos(10.0f0 * radius + t)
b = radius
return Vec4(r,g,b, 1)
end
yy=xx=-1.:.05:1.
N=length(xx)
color = [zcolor(i/N, j/N, 15) for i=1:N, j=1:N];
h=0.01;
u0=TensorFun((x,y)->exp(-10x.^2-20(y-.1).^2))
d=Interval()⊗Interval()
L=I-h^2*lap(d);
B=dirichlet(d);
S=schurfact([B,L],80);
u=Array(TensorFun,10000)
u[1]=u0
u[2]=u0
n=2;
GLPlot.glClearColor(1,1,1,0)
m=400
for k=n+1:n+m
u[k]=(S\[zeros(4),2u[k-1]-u[k-2]])
vals=[u[k][x,y] for x in xx,y in yy];
texdata=map(Vec1,vals)
obj = glplot(texdata, primitive=SURFACE(), color=color);
GLPlot.glClear(GLPlot.GL_COLOR_BUFFER_BIT | GLPlot.GL_DEPTH_BUFFER_BIT)
render(obj)
yield()
GLFW.SwapBuffers(window.glfwWindow)
end
n+=m
On 21 Aug 2014, at 9:51 am, Simon Danisch <[email protected]> wrote:
> Good to hear.
> The test looks funny, as I overlay everything GLPlot is able to do ;)
> I should remove example.jl, as it uses legacy code.
> I'm not sure about the surface example, though... Did you change anything?
> This might be due to a change of the output from imread (Images.jl) and
> shouldn't be a problem if you use your own arrays.
> I'll have a look at this tomorrow...
>
>
> 2014-08-20 23:58 GMT+02:00 Sheehan Olver <[email protected]>:
> OK I rebuilt julia and cleared my .julia folder, which seems to have cleared
> that issue. Pkg.test(“GLPlot”) seems to work, though the output looks funny.
> I also get the following:
>
> julia> include("surface.jl")
> INFO: loaded GLFW 3.0.4 Cocoa NSGL chdir menubar dynamic from
> /Users/solver/.julia/v0.4/GLFW/deps/usr64/lib/libglfw
> ERROR: Color Format RGBA not supported
> in error at error.jl:21
> in Texture at /Users/solver/.julia/v0.4/GLAbstraction/src/GLTexture.jl:156
> in include at ./boot.jl:245
> in include_from_node1 at ./loading.jl:128
> while loading /Users/solver/.julia/v0.4/GLPlot/example/surface.jl, in
> expression starting on line 24
>
> julia> include("example.jl")
> INFO: loaded GLFW 3.0.4 Cocoa NSGL chdir menubar dynamic from
> /Users/solver/.julia/v0.4/GLFW/deps/usr64/lib/libglfw
> ERROR: Cam not defined
> in include at ./boot.jl:245
> in include_from_node1 at ./loading.jl:128
> while loading /Users/solver/.julia/v0.4/GLPlot/example/example.jl, in
> expression starting on line 25
>
>
> On 20 Aug 2014, at 9:37 pm, Tim Holy <[email protected]> wrote:
>
> > You might need a Pkg.update(), or Pkg.build("Images") if the update doesn't
> > solve it.
> >
> > --Tim
> >
> > On Wednesday, August 20, 2014 09:23:16 PM Sheehan Olver wrote:
> >> OK Now I get
> >>
> >> could not open file
> >> /Users/solver/.julia/v0.3/Images/src/ioformats/../../deps/deps.jl while
> >> loading /Users/solver/.julia/v0.3/Images/src/ioformats/libmagickwand.jl, in
> >> expression starting on line 24 while loading
> >> /Users/solver/.julia/v0.3/Images/src/Images.jl, in expression starting on
> >> line 38 while loading
> >> /Users/solver/.julia/v0.3/GLAbstraction/src/GLTexture.jl, in expression
> >> starting on line 1 while loading
> >> /Users/solver/.julia/v0.3/GLAbstraction/src/GLTypes.jl, in expression
> >> starting on line 40 while loading
> >> /Users/solver/.julia/v0.3/GLAbstraction/src/GLAbstraction.jl, in expression
> >> starting on line 8
> >> On 20 Aug 2014, at 9:06 pm, Simon Danisch <[email protected]> wrote:
> >>> Yes I do =)
> >>> You need to install Images.jl properly with its dependency.
> >>> https://github.com/timholy/Images.jl
> >>> I should at some point load this conditional, as you don't really need
> >>> Images.jl as long as you don't read images from your HD.
> >>>
> >>>
> >>> 2014-08-20 13:01 GMT+02:00 Sheehan Olver <[email protected]>:
> >>> OK I cloned all the necessary projects but get the following error on OS
> >>> X, and thoughts?
> >>>
> >>> julia> include("surface.jl")
> >>> ERROR: error compiling Texture: error compiling __Texture#30__: error
> >>> compiling imread: error compiling imread: error compiling MagickWand:
> >>> could not load module : dlopen(.dylib, 1): image not found>
> >>> in GLFont at /Users/solver/.julia/v0.3/GLText/src/types.jl:97
> >>> in inittext at /Users/solver/.julia/v0.3/GLText/src/GLText.jl:13
> >>> in init_glutils at
> >>> /Users/solver/.julia/v0.3/GLAbstraction/src/GLInit.jl:13
> >>> in createwindow at
> >>> /Users/solver/.julia/v0.3/GLWindow/src/reactglfw.jl:299
> >>> in createdisplay at /Users/solver/.julia/v0.3/GLPlot/src/GLPlot.jl:43
> >>> in include at ./boot.jl:245
> >>> in include_from_node1 at ./loading.jl:128
> >>>
> >>> while loading /Users/solver/.julia/v0.3/GLPlot/example/surface.jl, in
> >>> expression starting on line 3>
> >>> On 20 Aug 2014, at 8:37 pm, Simon Danisch <[email protected]> wrote:
> >>>> In theory it does support 2D plotting, but I didn't invest much work into
> >>>> it, as 3D is my main focus. In other words:
> >>>> There's nothing working out of the box, but if you are willing to invest
> >>>> some work, there are already a lot of tools to make 2D plotting possible
> >>>> and I would be willing to support you with any efforts.
> >>>>
> >>>>
> >>>> Am Dienstag, 19. August 2014 07:46:22 UTC+2 schrieb Sheehan Olver:
> >>>> Hi,
> >>>>
> >>>> Is there a way to force plotting in PyPlot.jl, to simulate animation?
> >>>> Right now if I do a for loop over a sequence of plots, it only outputs
> >>>> the last plot.
> >>>>
> >>>> This is in IJulia running on OS X with matplotlib version 1.3.1
> >>>> installed, and pygui(true)
> >>>>
> >>>> Sheehan
> >
>
>
