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Change Reference Fixes #339

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Merged
merged 1 commit into from
Jun 29, 2023
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Change Reference Fixes #339

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17 changes: 9 additions & 8 deletions src/madl_dynmap.mad
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Original file line number Diff line number Diff line change
Expand Up @@ -270,7 +270,8 @@ M.translate = translate
-- Changeref (generic patch, lw_>0: RT, lw_<0: TR)

function M.changeref (elm, m, lw_) -- unchecked
local lw = lw_ or 1
local sdir, edir in m
local lw = (lw_ or 1)*sdir -- for trackone, sdir is not placed into lw
local dx, dy, ds, dphi, dpsi in elm
local dthe = elm.dtheta
local trn = abs(dx )+abs(dy )+abs(ds ) >= minlen
Expand All @@ -285,21 +286,21 @@ function M.changeref (elm, m, lw_) --

-- rotate
if rot and lw > 0 then
yrotation( dthe, m, 1)
xrotation(-dphi, m, 1)
srotation( dpsi, m, 1)
yrotation( dthe, m, edir)
xrotation(-dphi, m, edir)
srotation( dpsi, m, edir)
end

-- translate
if trn then
translate({dx=dx, dy=dy, ds=ds}, m, lw)
translate({dx=dx, dy=dy, ds=ds}, m, 1) -- translate does everything
end

-- rotate
if rot and lw < 0 then
srotation( dpsi, m, -1)
xrotation(-dphi, m, -1)
yrotation( dthe, m, -1)
srotation( dpsi, m, -edir)
xrotation(-dphi, m, -edir)
yrotation( dthe, m, -edir)
end

m.atdebug(elm, m, lw_, 'changeref:1')
Expand Down