def __getitem__(self, indices): if isinstance(indices, slice): k = indices if k.start is None and k.stop is None and k.step is None: r = self.dataset.dataset.read(self.name) return DimArray(r, self.dims, self.fill_value, self.proj) if isinstance(indices, tuple): allnone = True for k in indices: if isinstance(k, slice): if (not k.start is None) or (not k.stop is None) or (not k.step is None): allnone = False break else: allnone = False break if allnone: r = self.dataset.dataset.read(self.name) return DimArray(r, self.dims, self.fill_value, self.proj) if indices is None: inds = [] for i in range(self.ndim): inds.append(slice(None)) indices = tuple(inds) if isinstance(indices, str): #metadata rr = self.dataset.read(self.name) m = rr.findMember(indices) data = rr.getArray(0, m) return NDArray(data) if not isinstance(indices, tuple): inds = [] inds.append(indices) indices = inds if len(indices) != self.ndim: print 'indices must be ' + str(self.ndim) + ' dimensions!' return None if not self.proj is None and not self.proj.isLonLat(): xlim = None ylim = None xidx = -1 yidx = -1 for i in range(0, self.ndim): dim = self.dims[i] if dim.getDimType() == DimensionType.X: k = indices[i] if isinstance(k, basestring): xlims = k.split(':') if len(xlims) == 1: xlim = [float(xlims[0])] else: xlim = [float(xlims[0]), float(xlims[1])] xidx = i elif dim.getDimType() == DimensionType.Y: k = indices[i] if isinstance(k, basestring): ylims = k.split(':') if len(ylims) == 1: ylim = [float(ylims[0])] else: ylim = [float(ylims[0]), float(ylims[1])] yidx = i if not xlim is None and not ylim is None: fromproj=KnownCoordinateSystems.geographic.world.WGS1984 inpt = PointD(xlim[0], ylim[0]) outpt1 = Reproject.reprojectPoint(inpt, fromproj, self.proj) if len(xlim) == 1: xlim = [outpt1.X] ylim = [outpt1.Y] else: inpt = PointD(xlim[1], ylim[1]) outpt2 = Reproject.reprojectPoint(inpt, fromproj, self.proj) xlim = [outpt1.X, outpt2.X] ylim = [outpt1.Y, outpt2.Y] indices1 = [] for i in range(0, self.ndim): if i == xidx: if len(xlim) == 1: indices1.append(str(xlim[0])) else: indices1.append(str(xlim[0]) + ':' + str(xlim[1])) elif i == yidx: if len(ylim) == 1: indices1.append(str(ylim[0])) else: indices1.append(str(ylim[0]) + ':' + str(ylim[1])) else: indices1.append(indices[i]) indices = indices1 origin = [] size = [] stride = [] ranges = [] dims = [] flips = [] onlyrange = True for i in range(0, self.ndim): isrange = True dimlen = self.dimlen(i) k = indices[i] if isinstance(k, int): if k < 0: k = self.dims[i].getLength() + k sidx = k eidx = k step = 1 elif isinstance(k, slice): if isinstance(k.start, basestring): sv = float(k.start) sidx = self.dims[i].getValueIndex(sv) elif isinstance(k.start, datetime.datetime): sv = miutil.date2num(k.start) sidx = self.dims[i].getValueIndex(sv) else: sidx = 0 if k.start is None else k.start if sidx < 0: sidx = self.dimlen(i) + sidx if isinstance(k.stop, basestring): ev = float(k.stop) eidx = self.dims[i].getValueIndex(ev) elif isinstance(k.stop, datetime.datetime): ev = miutil.date2num(k.stop) eidx = self.dims[i].getValueIndex(ev) else: eidx = self.dimlen(i) if k.stop is None else k.stop if eidx < 0: eidx = self.dimlen(i) + eidx eidx -= 1 if isinstance(k.step, basestring): nv = float(k.step) + self.dims[i].getDimValue()[0] nidx = self.dims[i].getValueIndex(nv) step = nidx - sidx elif isinstance(k.step, datetime.timedelta): nv = miutil.date2num(k.start + k.step) nidx = self.dims[i].getValueIndex(nv) step = nidx - sidx else: step = 1 if k.step is None else k.step if sidx > eidx: iidx = eidx eidx = sidx sidx = iidx elif isinstance(k, list): onlyrange = False isrange = False if not isinstance(k[0], datetime.datetime): ranges.append(k) else: tlist = [] for tt in k: sv = miutil.date2num(tt) idx = self.dims[i].getValueIndex(sv) tlist.append(idx) ranges.append(tlist) k = tlist elif isinstance(k, basestring): dim = self.variable.getDimension(i) kvalues = k.split(':') sv = float(kvalues[0]) sidx = dim.getValueIndex(sv) if len(kvalues) == 1: eidx = sidx step = 1 else: ev = float(kvalues[1]) eidx = dim.getValueIndex(ev) if len(kvalues) == 2: step = 1 else: step = int(float(kvalues[2]) / dim.getDeltaValue()) if sidx > eidx: iidx = eidx eidx = sidx sidx = iidx else: print k return None if isrange: if eidx >= dimlen: print 'Index out of range!' return None origin.append(sidx) n = eidx - sidx + 1 size.append(n) if n > 1: dim = self.variable.getDimension(i) if dim.isReverse(): step = -step dim = dim.extract(sidx, eidx, step) dim.setReverse(False) dims.append(dim) stride.append(step) if step < 0: step = abs(step) flips.append(i) rr = Range(sidx, eidx, step) ranges.append(rr) else: if len(k) > 1: dim = self.variable.getDimension(i) dim = dim.extract(k) dim.setReverse(False) dims.append(dim) #rr = self.dataset.read(self.name, origin, size, stride).reduce() if onlyrange: rr = self.dataset.dataset.read(self.name, ranges) else: rr = self.dataset.dataset.take(self.name, ranges) if rr.getSize() == 1: return rr.getObject(0) else: for i in flips: rr = rr.flip(i) rr = rr.reduce() ArrayMath.missingToNaN(rr, self.fill_value) if len(flips) > 0: rrr = Array.factory(rr.getDataType(), rr.getShape()) MAMath.copy(rrr, rr) array = NDArray(rrr) else: array = NDArray(rr) data = DimArray(array, dims, self.fill_value, self.dataset.proj) return data
def __getitem__(self, indices): if indices is None: rr = self.dataset.read(self.name) if rr.getDataType().isNumeric(): ArrayMath.missingToNaN(rr, self.fill_value) array = MIArray(rr) data = DimArray(array, self.dims, self.fill_value, self.dataset.proj) return data else: return rr if isinstance(indices, str): #metadata rr = self.dataset.read(self.name) m = rr.findMember(indices) data = rr.getArray(0, m) return MIArray(data) if not isinstance(indices, tuple): inds = [] inds.append(indices) indices = inds if len(indices) != self.ndim: print 'indices must be ' + str(self.ndim) + ' dimensions!' return None origin = [] size = [] stride = [] dims = [] for i in range(0, self.ndim): dimlen = self.dimlen(i) k = indices[i] if isinstance(k, int): sidx = k eidx = k step = 1 elif isinstance(k, slice): sidx = 0 if k.start is None else k.start eidx = self.dimlen(i) - 1 if k.stop is None else k.stop step = 1 if k.step is None else k.step elif isinstance(k, (tuple, list)): dim = self.variable.getDimension(i) sidx = dim.getValueIndex(k[0]) if len(k) == 1: eidx = sidx step = 1 else: eidx = dim.getValueIndex(k[1]) if len(k) == 2: step = 1 else: step = int(k[2] / dim.getDeltaValue) if sidx > eidx: iidx = eidx eidx = sidx sidx = iidx else: print k return None if eidx >= dimlen: print 'Index out of range!' return None origin.append(sidx) n = eidx - sidx + 1 size.append(n) if n > 1: dim = self.variable.getDimension(i) if dim.isReverse(): step = -step dims.append(dim.extract(sidx, eidx, step)) stride.append(step) rr = self.dataset.read(self.name, origin, size, stride).reduce() if rr.getSize() == 1: return rr.getObject(0) ArrayMath.missingToNaN(rr, self.fill_value) array = MIArray(rr) data = DimArray(array, dims, self.fill_value, self.dataset.proj) return data
def __getitem__(self, indices): if indices is None: inds = [] for i in range(self.ndim): inds.append(slice(None)) indices = tuple(inds) if isinstance(indices, str): #metadata rr = self.dataset.read(self.name) m = rr.findMember(indices) data = rr.getArray(0, m) return MIArray(data) if not isinstance(indices, tuple): inds = [] inds.append(indices) indices = inds if len(indices) != self.ndim: print 'indices must be ' + str(self.ndim) + ' dimensions!' return None if not self.proj is None and not self.proj.isLonLat(): xlim = None ylim = None xidx = -1 yidx = -1 for i in range(0, self.ndim): dim = self.dims[i] if dim.getDimType() == DimensionType.X: k = indices[i] if isinstance(k, basestring): xlims = k.split(':') if len(xlims) == 1: xlim = [float(xlims[0])] else: xlim = [float(xlims[0]), float(xlims[1])] xidx = i elif dim.getDimType() == DimensionType.Y: k = indices[i] if isinstance(k, basestring): ylims = k.split(':') if len(ylims) == 1: ylim = [float(ylims[0])] else: ylim = [float(ylims[0]), float(ylims[1])] yidx = i if not xlim is None and not ylim is None: fromproj=KnownCoordinateSystems.geographic.world.WGS1984 inpt = PointD(xlim[0], ylim[0]) outpt1 = Reproject.reprojectPoint(inpt, fromproj, self.proj) if len(xlim) == 1: xlim = [outpt1.X] ylim = [outpt1.Y] else: inpt = PointD(xlim[1], ylim[1]) outpt2 = Reproject.reprojectPoint(inpt, fromproj, self.proj) xlim = [outpt1.X, outpt2.X] ylim = [outpt1.Y, outpt2.Y] indices1 = [] for i in range(0, self.ndim): if i == xidx: if len(xlim) == 1: indices1.append(str(xlim[0])) else: indices1.append(str(xlim[0]) + ':' + str(xlim[1])) elif i == yidx: if len(ylim) == 1: indices1.append(str(ylim[0])) else: indices1.append(str(ylim[0]) + ':' + str(ylim[1])) else: indices1.append(indices[i]) indices = indices1 origin = [] size = [] stride = [] ranges = [] dims = [] flips = [] onlyrange = True for i in range(0, self.ndim): isrange = True dimlen = self.dimlen(i) k = indices[i] if isinstance(k, int): if k < 0: k = self.dims[i].getLength() + k sidx = k eidx = k step = 1 elif isinstance(k, slice): if isinstance(k.start, basestring): sv = float(k.start) sidx = self.dims[i].getValueIndex(sv) elif isinstance(k.start, datetime.datetime): sv = miutil.date2num(k.start) sidx = self.dims[i].getValueIndex(sv) else: sidx = 0 if k.start is None else k.start if sidx < 0: sidx = self.dimlen(i) + sidx if isinstance(k.stop, basestring): ev = float(k.stop) eidx = self.dims[i].getValueIndex(ev) elif isinstance(k.stop, datetime.datetime): ev = miutil.date2num(k.stop) eidx = self.dims[i].getValueIndex(ev) else: eidx = self.dimlen(i) if k.stop is None else k.stop if eidx < 0: eidx = self.dimlen(i) + eidx eidx -= 1 if isinstance(k.step, basestring): nv = float(k.step) + self.dims[i].getDimValue()[0] nidx = self.dims[i].getValueIndex(nv) step = nidx - sidx elif isinstance(k.step, datetime.timedelta): nv = miutil.date2num(k.start + k.step) nidx = self.dims[i].getValueIndex(nv) step = nidx - sidx else: step = 1 if k.step is None else k.step if sidx > eidx: iidx = eidx eidx = sidx sidx = iidx elif isinstance(k, list): onlyrange = False isrange = False if not isinstance(k[0], datetime.datetime): ranges.append(k) else: tlist = [] for tt in k: sv = miutil.date2num(tt) idx = self.dims[i].getValueIndex(sv) tlist.append(idx) ranges.append(tlist) k = tlist elif isinstance(k, basestring): dim = self.variable.getDimension(i) kvalues = k.split(':') sv = float(kvalues[0]) sidx = dim.getValueIndex(sv) if len(kvalues) == 1: eidx = sidx step = 1 else: ev = float(kvalues[1]) eidx = dim.getValueIndex(ev) if len(kvalues) == 2: step = 1 else: step = int(float(kvalues[2]) / dim.getDeltaValue()) if sidx > eidx: iidx = eidx eidx = sidx sidx = iidx else: print k return None if isrange: if eidx >= dimlen: print 'Index out of range!' return None origin.append(sidx) n = eidx - sidx + 1 size.append(n) if n > 1: dim = self.variable.getDimension(i) if dim.isReverse(): step = -step dim = dim.extract(sidx, eidx, step) dim.setReverse(False) dims.append(dim) stride.append(step) if step < 0: step = abs(step) flips.append(i) rr = Range(sidx, eidx, step) ranges.append(rr) else: if len(k) > 1: dim = self.variable.getDimension(i) dim = dim.extract(k) dim.setReverse(False) dims.append(dim) #rr = self.dataset.read(self.name, origin, size, stride).reduce() if onlyrange: rr = self.dataset.dataset.read(self.name, ranges) else: rr = self.dataset.dataset.take(self.name, ranges) if rr.getSize() == 1: return rr.getObject(0) else: for i in flips: rr = rr.flip(i) rr = rr.reduce() ArrayMath.missingToNaN(rr, self.fill_value) if len(flips) > 0: rrr = Array.factory(rr.getDataType(), rr.getShape()) MAMath.copy(rrr, rr) array = MIArray(rrr) else: array = MIArray(rr) data = DimArray(array, dims, self.fill_value, self.dataset.proj) return data
def __getitem__(self, indices): if indices is None: rr = self.dataset.read(self.name) if rr.getDataType().isNumeric(): ArrayMath.missingToNaN(rr, self.fill_value) array = MIArray(rr) data = DimArray(array, self.dims, self.fill_value, self.dataset.proj) return data else: return rr if isinstance(indices, str): #metadata rr = self.dataset.read(self.name) m = rr.findMember(indices) data = rr.getArray(0, m) return MIArray(data) if not isinstance(indices, tuple): inds = [] inds.append(indices) indices = inds if len(indices) != self.ndim: print 'indices must be ' + str(self.ndim) + ' dimensions!' return None origin = [] size = [] stride = [] dims = [] for i in range(0, self.ndim): dimlen = self.dimlen(i) k = indices[i] if isinstance(k, int): sidx = k eidx = k step = 1 elif isinstance(k, slice): sidx = 0 if k.start is None else k.start eidx = self.dimlen(i)-1 if k.stop is None else k.stop step = 1 if k.step is None else k.step elif isinstance(k, (tuple, list)): dim = self.variable.getDimension(i) sidx = dim.getValueIndex(k[0]) if len(k) == 1: eidx = sidx step = 1 else: eidx = dim.getValueIndex(k[1]) if len(k) == 2: step = 1 else: step = int(k[2] / dim.getDeltaValue) if sidx > eidx: iidx = eidx eidx = sidx sidx = iidx else: print k return None if eidx >= dimlen: print 'Index out of range!' return None origin.append(sidx) n = eidx - sidx + 1 size.append(n) if n > 1: dim = self.variable.getDimension(i) if dim.isReverse(): step = -step dims.append(dim.extract(sidx, eidx, step)) stride.append(step) rr = self.dataset.read(self.name, origin, size, stride).reduce() if rr.getSize() == 1: return rr.getObject(0) ArrayMath.missingToNaN(rr, self.fill_value) array = MIArray(rr) data = DimArray(array, dims, self.fill_value, self.dataset.proj) return data