Ejemplo n.º 1
0
 def test_getTileBounds(self):
     self.assertNearlyEqual(getTileBounds(level=1, x=0, y=0),
                            (-180, -90, 0, 90))
     self.assertNearlyEqual(getTileBounds(level=1, x=1, y=0),
                            (0, -90, 180, 90))
     self.assertNearlyEqual(getTileBounds(level=3, x=2, y=2),
                            (-90, 0, -45, 45))
Ejemplo n.º 2
0
def mapTileImage(request, dayCode, level, x, y):
    level = int(level)
    x = int(x)
    y = int(y)

    genTilePath = os.path.join(os.path.dirname(__file__), 'genTile.py')
    coordArgs = ('--west=%s --south=%s --east=%s --north=%s' %
                 tile.getTileBounds(level, x, y))
    fd, outPath = tempfile.mkstemp('-genTileOutput.png')
    os.close(fd)
    ret = dosys('%s %s %s' % (genTilePath, coordArgs, outPath))

    if ret == 0:
        img = outPath
        mimetype = 'image/png'
    else:
        # stupid fallback if genTile doesn't work. for example, if matplotlib is not installed.
        img = os.path.join(os.path.dirname(__file__), 'static', 'style',
                           'isruApp', 'resolveLogo70.png')
        mimetype = 'image/gif'
    try:
        pass  # os.remove(outPath)
    except OSError:
        pass
    return HttpResponse(file(img, 'r').read(), content_type=mimetype)
Ejemplo n.º 3
0
def mapTileImage(request, dayCode, level, x, y):
    level = int(level)
    x = int(x)
    y = int(y)

    genTilePath = os.path.join(os.path.dirname(__file__), 'genTile.py')
    coordArgs = ('--west=%s --south=%s --east=%s --north=%s'
                 % tile.getTileBounds(level, x, y))
    fd, outPath = tempfile.mkstemp('-genTileOutput.png')
    os.close(fd)
    ret = dosys('%s %s %s'
                % (genTilePath, coordArgs, outPath))

    if ret == 0:
        img = outPath
        mimetype = 'image/png'
    else:
        # stupid fallback if genTile doesn't work. for example, if matplotlib is not installed.
        img = os.path.join(os.path.dirname(__file__), 'static', 'style', 'isruApp', 'resolveLogo70.png')
        mimetype = 'image/gif'
    try:
        pass  # os.remove(outPath)
    except OSError:
        pass
    return HttpResponse(file(img, 'r').read(),
                        content_type=mimetype)
Ejemplo n.º 4
0
def mapTileKml(request, layerId, dayCode, level, x, y):
    level = int(level)
    x = int(x)
    y = int(y)

    # make links to sub-tiles if necessary
    if level < settings.XGDS_PLOT_MAP_ZOOM_RANGE[1] - 1:
        linkList = []
        subLevel = level + 1
        for offset in ((0, 0), (0, 1), (1, 0), (1, 1)):
            subX = 2 * x + offset[0]
            subY = 2 * y + offset[1]
            subUrl = (request.build_absolute_uri(
                reverse('xgds_plot_mapTileKml',
                        args=[layerId, dayCode, subLevel, subX, subY])))
            linkList.append("""
<NetworkLink>
  <Region>
    %(box)s
    <Lod>
      <minLodPixels>%(minLodPixels)s</minLodPixels>
      <maxLodPixels>-1</maxLodPixels>
    </Lod>
  </Region>
  <Link>
    <href>%(subUrl)s</href>
    <viewRefreshMode>onRegion</viewRefreshMode>
  </Link>
</NetworkLink>
""" % dict(box=tile.getLatLonAltBox(tile.getTileBounds(subLevel, subX, subY)),
            subUrl=subUrl,
            minLodPixels=settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2))
        netLinks = '\n'.join(linkList)
    else:
        netLinks = ''

    #tileUrl = request.build_absolute_uri(reverse('mapTileImage', args=[level, x, y]))
    tileUrl = request.build_absolute_uri(
        '%s/%s/%s/%d/%d/%d.png' %
        (MAP_DATA_PATH, layerId, dayCode, level, x, y))
    bounds = tile.getTileBounds(level, x, y)
    minZoom, maxZoom = settings.XGDS_PLOT_MAP_ZOOM_RANGE
    if level < maxZoom - 1:
        maxLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE * 2
    else:
        maxLodPixels = -1
    if level > minZoom:
        minLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2
    else:
        minLodPixels = -1
    return KmlUtil.wrapKmlDjango("""
<Folder>
  %(netLinks)s
  <GroundOverlay>
    <Icon>
      <href>%(tileUrl)s</href>
      <refreshMode>onInterval</refreshMode>
      <refreshInterval>5</refreshInterval>
    </Icon>
    %(llBox)s
    <drawOrder>%(level)s</drawOrder>
    <Region>
      %(llaBox)s
      <Lod>
        <minLodPixels>%(minLodPixels)s</minLodPixels>
        <maxLodPixels>%(maxLodPixels)s</maxLodPixels>
      </Lod>
    </Region>
  </GroundOverlay>
  <Style>
    <ListStyle>
      <listItemType>checkHideChildren</listItemType>
    </ListStyle>
  </Style>
</Folder>
""" % dict(netLinks=netLinks,
           llBox=tile.getLatLonBox(bounds),
           llaBox=tile.getLatLonAltBox(bounds),
           tileUrl=tileUrl,
           level=level,
           minLodPixels=minLodPixels,
           maxLodPixels=maxLodPixels))
Ejemplo n.º 5
0
 def test_getTileBounds(self):
     self.assertNearlyEqual(getTileBounds(level=1, x=0, y=0), (-180, -90, 0, 90))
     self.assertNearlyEqual(getTileBounds(level=1, x=1, y=0), (0, -90, 180, 90))
     self.assertNearlyEqual(getTileBounds(level=3, x=2, y=2), (-90, 0, -45, 45))
Ejemplo n.º 6
0
def mapTileKml(request, layerId, dayCode, level, x, y):
    level = int(level)
    x = int(x)
    y = int(y)

    # make links to sub-tiles if necessary
    if level < settings.XGDS_PLOT_MAP_ZOOM_RANGE[1] - 1:
        linkList = []
        subLevel = level + 1
        for offset in ((0, 0), (0, 1), (1, 0), (1, 1)):
            subX = 2 * x + offset[0]
            subY = 2 * y + offset[1]
            subUrl = (request.build_absolute_uri
                      (reverse
                       ('xgds_plot_mapTileKml',
                        args=[layerId, dayCode, subLevel, subX, subY])))
            linkList.append("""
<NetworkLink>
  <Region>
    %(box)s
    <Lod>
      <minLodPixels>%(minLodPixels)s</minLodPixels>
      <maxLodPixels>-1</maxLodPixels>
    </Lod>
  </Region>
  <Link>
    <href>%(subUrl)s</href>
    <viewRefreshMode>onRegion</viewRefreshMode>
  </Link>
</NetworkLink>
""" %
                            dict(box=tile.getLatLonAltBox(tile.getTileBounds(subLevel, subX, subY)),
                                 subUrl=subUrl,
                                 minLodPixels=settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2))
        netLinks = '\n'.join(linkList)
    else:
        netLinks = ''

    #tileUrl = request.build_absolute_uri(reverse('mapTileImage', args=[level, x, y]))
    tileUrl = request.build_absolute_uri('%s/%s/%s/%d/%d/%d.png'
                                         % (MAP_DATA_PATH,
                                            layerId,
                                            dayCode,
                                            level, x, y))
    bounds = tile.getTileBounds(level, x, y)
    minZoom, maxZoom = settings.XGDS_PLOT_MAP_ZOOM_RANGE
    if level < maxZoom - 1:
        maxLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE * 2
    else:
        maxLodPixels = -1
    if level > minZoom:
        minLodPixels = settings.XGDS_PLOT_MAP_PIXELS_PER_TILE // 2
    else:
        minLodPixels = -1
    return KmlUtil.wrapKmlDjango("""
<Folder>
  %(netLinks)s
  <GroundOverlay>
    <Icon>
      <href>%(tileUrl)s</href>
      <refreshMode>onInterval</refreshMode>
      <refreshInterval>5</refreshInterval>
    </Icon>
    %(llBox)s
    <drawOrder>%(level)s</drawOrder>
    <Region>
      %(llaBox)s
      <Lod>
        <minLodPixels>%(minLodPixels)s</minLodPixels>
        <maxLodPixels>%(maxLodPixels)s</maxLodPixels>
      </Lod>
    </Region>
  </GroundOverlay>
  <Style>
    <ListStyle>
      <listItemType>checkHideChildren</listItemType>
    </ListStyle>
  </Style>
</Folder>
""" % dict(netLinks=netLinks,
           llBox=tile.getLatLonBox(bounds),
           llaBox=tile.getLatLonAltBox(bounds),
           tileUrl=tileUrl,
           level=level,
           minLodPixels=minLodPixels,
           maxLodPixels=maxLodPixels))