Mercurial > repos > public > sbplib_julia
diff EquidistantGrid.jl @ 124:631eb9b35d72 cell_based_test
Make grid spacing a property of EquidistantGrid. Create plotting module for sbplib.
author | Vidar Stiernström <vidar.stiernstrom@it.uu.se> |
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date | Wed, 13 Feb 2019 10:37:52 +0100 |
parents | 9d53ecca34f7 |
children | 1aaeb46ba5f4 |
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--- a/EquidistantGrid.jl Tue Feb 12 15:18:18 2019 +0100 +++ b/EquidistantGrid.jl Wed Feb 13 10:37:52 2019 +0100 @@ -5,52 +5,30 @@ # the domain is defined as (-1,1)x(0,2). struct EquidistantGrid{Dim,T<:Real} <: AbstractGrid - numberOfPointsPerDim::NTuple{Dim, Int} # First coordinate direction stored first, then - + size::NTuple{Dim, Int} # First coordinate direction stored first limit_lower::NTuple{Dim, T} limit_upper::NTuple{Dim, T} + spacing::NTuple{Dim, T} # General constructor - function EquidistantGrid(nPointsPerDim::NTuple{Dim, Int}, limit_lower::NTuple{Dim, T}, limit_upper::NTuple{Dim, T}) where Dim where T - @assert all(nPointsPerDim.>0) + function EquidistantGrid(size::NTuple{Dim, Int}, limit_lower::NTuple{Dim, T}, limit_upper::NTuple{Dim, T}) where Dim where T + @assert all(size.>0) @assert all(limit_upper.-limit_lower .!= 0) - return new{Dim,T}(nPointsPerDim, limit_lower, limit_upper) + spacing = abs.(limit_upper.-limit_lower)./(size.-1) + return new{Dim,T}(size, limit_lower, limit_upper, spacing) end - - # # 1D constructor which can be called as EquidistantGrid(m, (xl,xr)) - # function EquidistantGrid(nPointsPerDim::Integer, lims::NTuple{2,Real}) - # return EquidistantGrid((nPointsPerDim,), ((lims[1],),(lims[2],))) - # end - end # Returns the number of dimensions of an EquidistantGrid. # # @Input: grid - an EquidistantGrid -# @Return: numberOfPoints - The number of dimensions -function numberOfDimensions(grid::EquidistantGrid) - return length(grid.numberOfPointsPerDim) -end - -# Computes the total number of points of an EquidistantGrid. -# -# @Input: grid - an EquidistantGrid -# @Return: numberOfPoints - The total number of points -function numberOfPoints(grid::EquidistantGrid) - return prod(grid.numberOfPointsPerDim) -end - -# Computes the grid spacing of an EquidistantGrid, i.e the unsigned distance -# between two points for each coordinate direction. -# -# @Input: grid - an EquidistantGrid -# @Return: h̄ - Grid spacing for each coordinate direction stored in a tuple. -function spacings(grid::EquidistantGrid) - return abs.(grid.limit_upper.-grid.limit_lower)./(grid.numberOfPointsPerDim.-1) +# @Return: dimension - The dimension of the grid +function dimension(grid::EquidistantGrid) + return length(grid.size) end function Base.eachindex(grid::EquidistantGrid) - CartesianIndices(grid.numberOfPointsPerDim) + CartesianIndices(grid.size) end # Computes the points of an EquidistantGrid as a vector of tuples. The vector is ordered @@ -62,28 +40,12 @@ function points(grid::EquidistantGrid) # TODO: Make this return an abstract array? physical_domain_size = (grid.limit_upper .- grid.limit_lower) - indices = Tuple.(CartesianIndices(grid.numberOfPointsPerDim)) + indices = Tuple.(CartesianIndices(grid.size)) return broadcast(I -> grid.limit_lower .+ physical_domain_size.*(I.-1), indices) end function pointsalongdim(grid::EquidistantGrid, dim::Integer) - @assert dim<=numberOfDimensions(grid) + @assert dim<=dimension(grid) @assert dim>0 - points = range(grid.limit_lower[dim],stop=grid.limit_lower[dim],length=grid.numberOfPointsPerDim[dim]) + points = range(grid.limit_lower[dim],stop=grid.limit_lower[dim],length=grid.size[dim]) end - -using PyPlot, PyCall - -function plotgridfunction(grid::EquidistantGrid, gridfunction) - if numberOfDimensions(grid) == 1 - plot(pointsalongdim(grid,1), gridfunction, linewidth=2.0) - elseif numberOfDimensions(grid) == 2 - mx = grid.numberOfPointsPerDim[1] - my = grid.numberOfPointsPerDim[2] - X = repeat(pointsalongdim(grid,1),1,my) - Y = permutedims(repeat(pointsalongdim(grid,2),1,mx)) - plot_surface(X,Y,reshape(gridfunction,mx,my)); - else - error(string("Plot not implemented for dimension ", string(numberOfDimensions(grid)))) - end -end