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update tti-symmetry axes #46

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update tti-symmetry axes #46

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16 changes: 14 additions & 2 deletions src/jop_prop2DAcoTTIDenQ_DEO2_FDTD.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -51,8 +51,16 @@ function JetProp2DAcoTTIDenQ_DEO2_FDTD(;
i += 1
end
end
passive_modelset["sinθ"] = isempty(θ) ? zeros(Float32, size(values(active_modelset)[1])) : sin.(convert(Array{Float32}, θ));
passive_modelset["cosθ"] = isempty(θ) ? ones(Float32, size(values(active_modelset)[1])) : cos.(convert(Array{Float32}, θ));

# 2022.11.03
# - these angles are input in degrees
# - θ is TTI symmetry tilt, input specified in degrees from vertical axis (+z)
#
# Tilt (φ)
# if measured from +z in a right handed coordinate system must be transformed to
# +z in our left handed coordinate system: φ_lhs = - φ_rhs
passive_modelset["sinθ"] = isempty(θ) ? zeros(Float32, size(values(active_modelset)[1])) : sin.(convert(Array{Float32}, deg2rad.(-1 .* θ)));
passive_modelset["cosθ"] = isempty(θ) ? ones(Float32, size(values(active_modelset)[1])) : cos.(convert(Array{Float32}, deg2rad.(-1 .* θ)));
@assert length(active_modelset) > 0

# active and passive wavefields (an active wavefield is serialized to disk)
Expand Down Expand Up @@ -220,6 +228,10 @@ Parameters that are *not* passed to the constructor are assumed to be **active**
of the model that the operator acts on, stored as a 3D array with the following indices:
`[Z coord][X coord][Active Parameter]`

## TTI Symmetry Axes
This angle is input in degrees, specified as described below
- θ (tilt) opening angle from vertical axis (+z) in right hand coordinate system (z upward)

# Examples

## Model and acquisition geometry setup
Expand Down
26 changes: 22 additions & 4 deletions src/jop_prop3DAcoTTIDenQ_DEO2_FDTD.jl
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Original file line number Diff line number Diff line change
Expand Up @@ -61,10 +61,23 @@ function JetProp3DAcoTTIDenQ_DEO2_FDTD(;
i += 1
end
end
passive_modelset["sinθ"] = isempty(θ) ? zeros(Float32, size(values(active_modelset)[1])) : sin.(convert(Array{Float32}, θ))
passive_modelset["cosθ"] = isempty(θ) ? ones(Float32, size(values(active_modelset)[1])) : cos.(convert(Array{Float32}, θ))
passive_modelset["sinϕ"] = isempty(ϕ) ? zeros(Float32, size(values(active_modelset)[1])) : sin.(convert(Array{Float32}, ϕ))
passive_modelset["cosϕ"] = isempty(ϕ) ? ones(Float32, size(values(active_modelset)[1])) : cos.(convert(Array{Float32}, ϕ))

# 2022.11.03
# - these angles are input in degrees
# - θ is TTI symmetry tilt, input specified in degrees from vertical axis (+z)
# - φ is TTI symmetry azimuth, input specified in "compass angle": degrees clockwise from north (+y)
#
# Tilt (φ)
# if measured from +z in a right handed coordinate system must be transformed to
# +z in our left handed coordinate system: φ_lhs = - φ_rhs
#
# Azimuth (θ)
# must be transformed from compass angle (clockwise from north or +y)
passive_modelset["sinθ"] = isempty(θ) ? zeros(Float32, size(values(active_modelset)[1])) : sin.(convert(Array{Float32}, deg2rad.(-1 .* θ)));
passive_modelset["cosθ"] = isempty(θ) ? ones(Float32, size(values(active_modelset)[1])) : cos.(convert(Array{Float32}, deg2rad.(-1 .* θ)));
passive_modelset["sinϕ"] = isempty(ϕ) ? zeros(Float32, size(values(active_modelset)[1])) : sin.(convert(Array{Float32}, deg2rad.(90 .- ϕ)));
passive_modelset["cosϕ"] = isempty(ϕ) ? ones(Float32, size(values(active_modelset)[1])) : cos.(convert(Array{Float32}, deg2rad.(90 .- ϕ)));

@assert length(active_modelset) > 0

# active and passive wavefields (an active wavefield is serialized to disk)
Expand Down Expand Up @@ -240,6 +253,11 @@ Parameters that are *not* passed to the constructor are assumed to be **active**
of the model that the operator acts on, stored as a 3D array with the following indices:
`[Z coord][X coord][Active Parameter]`

## TTI Symmetry Axes
These angles are input in degrees, specified as described below
- θ (tilt) opening angle from vertical axis (+z) in right hand coordinate system (z upward)
- φ (azim) opening angle clockwise from "north" or +y axies in right hand coordinate system (z upward)

# Examples

## Model and acquisition geometry setup
Expand Down