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module DetGeoms
export DetGeom, DetGeomPanel, DetGeomGroup, InternalDetGeom, copydetgeom
export findgroup
mutable struct InternalPanel
name::Cstring
cx::Cdouble
cy::Cdouble
cz::Cdouble
pixel_pitch::Cdouble
adu_per_photon::Cdouble
max_adu::Cdouble
fsx::Cdouble
fsy::Cdouble
fsz::Cdouble
ssx::Cdouble
ssy::Cdouble
ssz::Cdouble
w::Cint
h::Cint
group::Ptr{Cvoid}
end
mutable struct InternalDetGeomPanelGroup
name::Cstring
n_children::Cint
parent::Ptr{InternalDetGeomPanelGroup}
serial::Cint
cx::Cdouble
cy::Cdouble
cz::Cdouble
children::Ptr{Ptr{InternalDetGeomPanelGroup}}
panel::Ptr{InternalPanel}
end
mutable struct InternalDetGeom
panels::Ptr{InternalPanel}
n_panels::Cint
top_group::Ptr{InternalDetGeomPanelGroup}
end
mutable struct DetGeomPanel
name
corner
fsvec
ssvec
pixel_pitch
adu_per_photon
max_adu
w
h
end
struct DetGeomGroup
serial
name
children
center # For rotation
end
mutable struct DetGeom
panels::Vector{DetGeomPanel}
topgroup::DetGeomGroup
end
function copy_dg_panel(p::InternalPanel)
DetGeomPanel(unsafe_string(p.name),
[p.cx, p.cy, p.cz],
[p.fsx, p.fsy, p.fsz],
[p.ssx, p.ssy, p.ssz],
p.pixel_pitch, p.adu_per_photon, p.max_adu,
p.w, p.h)
end
function copydggroup(panels, grp)
grpdata = unsafe_load(grp, 1)
name = unsafe_string(grpdata.name)
children = DetGeomGroup[]
if grpdata.n_children > 1
for i in 1:grpdata.n_children
cdata = unsafe_load(grpdata.children, i)
push!(children, copydggroup(panels, cdata))
end
DetGeomGroup(grpdata.serial, name, children,
[grpdata.cx, grpdata.cy, grpdata.cz])
else
name = unsafe_string(grpdata.name)
pn = findfirst(x->x.name==name, panels)
DetGeomGroup(grpdata.serial, name, [panels[pn]],
[grpdata.cx, grpdata.cy, grpdata.cz])
end
end
function copydetgeom(dg::Ptr{InternalDetGeom})
dgdata = unsafe_load(dg, 1)
panels = DetGeomPanel[]
for i in 1:dgdata.n_panels
paneldata = unsafe_load(dgdata.panels, i)
push!(panels, copy_dg_panel(paneldata))
end
topgroup = copydggroup(panels, dgdata.top_group)
DetGeom(panels, topgroup)
end
function seq100(ser, head)
if ser == 0
()
elseif ser < 100
(head...,ser % 100)
else
seq100(ser ÷ 100, (head..., ser % 100))
end
end
findgroup(dg::DetGeom, ser) = findgroup(dg.topgroup, ser, seq100(ser÷100, ()))
function findgroup(group::DetGeomGroup, ser, path)
if length(path) == 0
@assert(group.serial == ser)
return group
end
findgroup(group.children[path[1]], ser, path[2:end])
end
function Base.show(io::IO, p::DetGeomPanel)
write(io, "Panel(")
write(io, "name=\"")
write(io, p.name)
write(io, "\", corner=")
show(io, p.corner)
write(io, "), fs=(")
show(io, p.fsvec)
write(io, "), ss=(")
show(io, p.ssvec)
write(io, "), size=(")
show(io, p.w); write(io, ", "); show(io, p.h)
write(io, "))")
end
function showgroup(io, p::DetGeomPanel, prefix)
println(io, prefix, "Panel ", p.name, " (",p.w,"×",p.h,")")
end
function showgroup(io, grp::DetGeomGroup, prefix)
println(io, prefix, "Group ", grp.name, " (serial number ", grp.serial, ")")
for child in grp.children
showgroup(io, child, prefix*" ")
end
end
function Base.show(io::IO, ::MIME"text/plain", dg::DetGeom)
println(io, "Detector geometry structure with ", length(dg.panels), " panels")
showgroup(io, dg.topgroup, " ")
end
end # of module
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