ValueError: Data and query points must have same dimensions

[Eichhof]

Hello

I have the following method:

def sphviewer_plot(x, y, nb=32, xsize=500, ysize=500):   
    xmin = np.min(x)
    xmax = np.max(x)
    ymin = np.min(y)
    ymax = np.max(y)

    x0 = (xmin+xmax)/2.
    y0 = (ymin+ymax)/2.

    pos = np.zeros([3, len(x)])
    pos[0,:] = x
    pos[1,:] = y
    w = np.ones(len(x))

    P = sph.Particles(pos, w, nb=nb)
    S = sph.Scene(P)
    S.update_camera(r='infinity', x=x0, y=y0, z=0, 
                    xsize=xsize, ysize=ysize)
    R = sph.Render(S)
    R.set_logscale()
    img = R.get_image()
    extent = R.get_extent()
    for i, j in zip(xrange(4), [x0,x0,y0,y0]):
        extent[i] += j
    return img, extent

I'm now calling this method with img, extent = sphviewer_plot(df_touch_main["x"].values, df_touch_main["y"].values, 16, xsize=1000, ysize=1000) where df_touch_main is a DataFrame. Both df_touch_main["x"].values and df_touch_main["y"].values are of size 645019. The detailed error I get is the following:

---

ValueError Traceback (most recent call last)

in 23 print(len(df_touch_main["x"])) 24 print(len(df_touch_main["y"])) ---> 25 img, extent = sphviewer_plot(df_touch_main["x"].values, df_touch_main["y"].values, 16, xsize=1000, ysize=1000) 26 img = np.flipud(img) 27 ax.imshow(img, extent=extent, origin='lower', cmap=mycmap) in sphviewer_plot(x, y, nb, xsize, ysize) 24 w = np.ones(len(x)) 25 ---> 26 P = sph.Particles(pos, w, nb=nb) 27 S = sph.Scene(P) 28 S.update_camera(r='infinity', x=x0, y=y0, z=0, ~\AppData\Local\Continuum\anaconda3\lib\site-packages\py_sphviewer-1.2.0-py3.7-win-amd64.egg\sphviewer\Particles.py in __init__(self, pos, mass, hsml, nb, verbose, sort) 86 87 if(hsml is None): ---> 88 hsml = self.__det_hsml(pos,nb) 89 90 if(sort): ~\AppData\Local\Continuum\anaconda3\lib\site-packages\py_sphviewer-1.2.0-py3.7-win-amd64.egg\sphviewer\Particles.py in __det_hsml(self, pos, nb) 182 def __det_hsml(self, pos, nb): 183 tree = self.__make_kdtree(pos) --> 184 hsml = self.__nbsearch(pos, nb, tree) 185 return hsml 186 ~\AppData\Local\Continuum\anaconda3\lib\site-packages\py_sphviewer-1.2.0-py3.7-win-amd64.egg\sphviewer\Particles.py in __nbsearch(self, pos, nb, tree) 176 177 def __nbsearch(self, pos, nb, tree): --> 178 d, idx = tree.query(pos, k=nb) 179 hsml = d[:,nb-1] 180 return hsml pykdtree/kdtree.pyx in pykdtree.kdtree.KDTree.query() ValueError: Data and query points must have same dimensions

[AshKelly]

I think it is because

    pos = np.zeros([3, len(x)])
    pos[0,:] = x
    pos[1,:] = y

should be,

    pos = np.zeros([len(x), 3])
    pos[:,0] = x
    pos[:,1] = y

[Eichhof]

Thanks a lot. Now I'm getting another error:

---

ImportError Traceback (most recent call last)

in 23 print(len(df_touch_main["x"])) 24 print(len(df_touch_main["y"])) ---> 25 img, extent = sphviewer_plot(df_touch_main["x"].values, df_touch_main["y"].values, 16, xsize=1000, ysize=1000) 26 img = np.flipud(img) 27 ax.imshow(img, extent=extent, origin='lower', cmap=mycmap) in sphviewer_plot(x, y, nb, xsize, ysize) 25 26 P = sph.Particles(pos, w, nb=nb) ---> 27 S = sph.Scene(P) 28 S.update_camera(r='infinity', x=x0, y=y0, z=0, 29 xsize=xsize, ysize=ysize) ~\AppData\Local\Continuum\anaconda3\lib\site-packages\py_sphviewer-1.2.0-py3.7-win-amd64.egg\sphviewer\Scene.py in __init__(self, Particles, Camera) 111 self._camera_params = self.Camera.get_params() 112 --> 113 self._x, self._y, self._hsml, self._kview = self.__compute_scene() 114 self._m = self._Particles._mass[self._kview] 115 ~\AppData\Local\Continuum\anaconda3\lib\site-packages\py_sphviewer-1.2.0-py3.7-win-amd64.egg\sphviewer\Scene.py in __compute_scene(self) 157 158 def __compute_scene(self): --> 159 from .extensions import scene 160 161 pos = self._Particles._pos ImportError: DLL load failed: %1 is not a valid Win32 application.

[AshKelly]

This seems like you have installed pysphviewer (and maybe python as a whole) as 64bit but you run on a 32bit system.

Are you able to check what Windows architecture you have installed, 32bit or 64bit? and also, maybe what python version you installed, again either 32bit or 64bit?

[AshKelly]

@alejandrobll likely knows more, my Windows knowledge is poor.

[Eichhof]

I'm running Windows 7 64-bit and Python 3.7.1 64-bit version. Perhaps the problem is connected to my previous problem: https://github.com/alejandrobll/py-sphviewer/issues/13 although I did not get any errors during installation.

[Eichhof]

@alejandrobll I'm not able to solve the problem. I would really appreciate if you could give some advice. Thank you very much.

[JBorrow]

Hi @Eichhof, how did you install py-sphviewer?

[alejandrobll]

I tested py-sphviewer on a Windows machine with a conda environment and it seems to work fine. Due to lack of further information on the issue, I'll close it now. This can be reopened if needed.