本文整理汇总了Python中pysgpp.Grid.createPolyGrid方法的典型用法代码示例。如果您正苦于以下问题：Python Grid.createPolyGrid方法的具体用法？Python Grid.createPolyGrid怎么用？Python Grid.createPolyGrid使用的例子？那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在类pysgpp.Grid的用法示例。
在下文中一共展示了Grid.createPolyGrid方法的2个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的Python代码示例。
示例1: createGrid
# 需要导入模块: from pysgpp import Grid [as 别名]
# 或者: from pysgpp.Grid import createPolyGrid [as 别名]
def createGrid(grid, dim, deg=1, addTruncatedBorder=False):
# create new grid
gridType = grid.getType()
if gridType in [Poly, PolyBoundary]:
deg = max(deg, grid.getDegree())
# print gridType, deg
if deg > 1:
if gridType in [LinearBoundary, PolyBoundary]:
return Grid.createPolyBoundaryGrid(dim, deg)
elif gridType == LinearL0Boundary:
raise NotImplementedError("there is no full boundary polynomial grid")
elif gridType in [Linear, Poly]:
return Grid.createPolyGrid(dim, deg)
else:
raise Exception('unknown grid type %s' % gridType)
else:
if gridType == Linear:
return Grid.createLinearGrid(dim)
elif gridType == LinearBoundary:
return Grid.createLinearBoundaryGrid(dim)
elif gridType == LinearL0Boundary:
return Grid.createLinearBoundaryGrid(dim, 0)
else:
raise Exception('unknown grid type %s' % gridType)示例2: discretizeProduct
# 需要导入模块: from pysgpp import Grid [as 别名]
# 或者: from pysgpp.Grid import createPolyGrid [as 别名]
def discretizeProduct(grid1, alpha1, grid2, alpha2):
"""
Discretizes the product of two sparse grid functions:
h(x) := f(x) * g(x)
on a full grid with piecewise polynomial basis. Therefore
a maximum number of grid points 10^6 is allowed.
@param grid1: Grid, grid of f
@param alpha1: DataVector, hierarchical coefficients of f
@param grid2: Grid, grid of g
@param alpha2: DataVector, hierarchical coefficients of g
"""
# make sure that the grids are either piece wise linear
# or piecewise polynomial
if grid1.getType() not in [Linear, Poly]:
raise AttributeError("grid type '%s' not supported" % grid1.getType())
if grid2.getType() not in [Linear, Poly]:
raise AttributeError("grid type '%s' not supported" % grid2.getType())
# get the degrees of the grid
maxlevelGrid1 = grid1.getStorage().getMaxLevel()
maxlevelGrid2 = grid2.getStorage().getMaxLevel()
deg1 = min(getDegree(grid1), maxlevelGrid1 + 1)
deg2 = min(getDegree(grid2), maxlevelGrid2 + 1)
deg = deg1 + deg2
maxlevel = max(maxlevelGrid1 + deg2, maxlevelGrid2 + deg1)
# check if maximum number of grid points is goint to be exceeded
n = 2 ** ((deg - 1) * grid1.getStorage().dim())
if n > 1e6:
raise AttributeError("Can not create a full grid of level %i and dimensionality %i. The number of grid points %i would exceed 10^6" % (deg - 1, grid1.getStorage().dim(), n))
# join the two grids
joinedGrid = Grid.createPolyGrid(2, deg)
joinedGrid.createGridGenerator().full(maxlevel)
# interpolate the product on the new grid
joinedAlpha = interpolateProduct(grid1, alpha1, grid2, alpha2, joinedGrid)
return joinedGrid, joinedAlpha