-- EgtDimension.lua by EgalTech s.r.l.     2019/032/31
-- Creazione di una quota

-- Tavola per definizione modulo (serve ma non usata)
local EgtDimension = {}

EgtOutLog( 'EgtDimension started', 1)

-- Intestazioni
require( 'EgtBase')

-- Frecce agli estremi della linea di quotatura
function Arrows(nParentId, ptP1, ptP2, dLenArr, iFrame, cColor, bRadius)

   local Ang = atan2( (ptP2:getY() - ptP1:getY()), (ptP2:getX() - ptP1:getX()))
   local iLine1
   local iLine2
   if not bRadius then
      iLine1 = EgtLinePDL(nParentId, ptP1, Ang + 30, dLenArr, iFrame)
      iLine2 = EgtLinePDL(nParentId, ptP1, Ang - 30, dLenArr, iFrame)
   end
   local iLine3 = EgtLinePDL(nParentId, ptP2, Ang + 150, dLenArr, iFrame)
   local iLine4 = EgtLinePDL(nParentId, ptP2, Ang - 150, dLenArr, iFrame)

   if cColor then
      if not bRadius then
         EgtSetColor( iLine1, cColor)
         EgtSetColor( iLine2, cColor)
      end
      EgtSetColor( iLine3, cColor)
      EgtSetColor( iLine4, cColor)
   end
end

-- Quota verticale (bSide: false sx, true dx)
function CreateLinearDimensionOnY( nParentId, ptP1, ptP2, sText, iTextSize, dDistance, dLenArr, dDistText, bSide, sVar, iFrame, cColor)

   if not iFrame then
      iFrame = GDB_RT.LOC
   end  

   local ptSx -- punto a sinistra
   local ptDx -- punto a destra

   if ptP1:getX() < ptP2:getX() - GEO.EPS_SMALL then
      ptSx = Point3d(ptP1)
      ptDx = Point3d(ptP2)
   else
      ptSx = Point3d(ptP2)
      ptDx = Point3d(ptP1)
   end

   if not bSide then -- Quotatura a sinistra

      if abs(ptSx:getY() - ptDx:getY()) < GEO.EPS_SMALL then  -- Caso di quota nulla

         local Uvx = Vector3d(-1, 0, 0)
         local iLine = EgtLinePVL(nParentId, ptDx, Uvx, dDistance + ptDx:getX() - ptSx:getX(), iFrame)
         local pText = Point3d(ptSx:getX() - dDistance - dDistText, ptSx:getY(),0)
         local TextId = EgtTextAdv(nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.MR,iFrame)
         EgtSetInfo( TextId, 'Var', sVar)

         if cColor then
            EgtSetColor( iLine, cColor)
            EgtSetColor( TextId, cColor)
         end
      else -- Caso di quota non nulla

         local ptSx1 = Point3d(ptSx:getX() - dDistance, ptSx:getY(), 0)
         local ptDx1 = Point3d(ptSx:getX() - dDistance, ptDx:getY(), 0)

         local iLine1 = EgtLine(nParentId, ptSx, ptSx1, iFrame)
         local iLine2 = EgtLine(nParentId, ptDx, ptDx1, iFrame)

         local ptSx2 = Point3d(ptSx:getX() - (dDistance - 0.5 * dLenArr), ptSx:getY(), 0)
         local ptDx2 = Point3d(ptSx:getX() - (dDistance - 0.5 * dLenArr), ptDx:getY(), 0)

         local iLine3 = EgtLine(nParentId, ptSx2, ptDx2, iFrame)
         Arrows(nParentId, ptSx2, ptDx2, dLenArr, iFrame, cColor)

         local pText = Point3d(ptSx1:getX() - dDistText, (ptSx1:getY() + ptDx1:getY())/2,0)
         local TextId = EgtTextAdv(nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.MR)
         EgtSetInfo( TextId, 'Var', sVar)

         if cColor then
            EgtSetColor( iLine1, cColor)
            EgtSetColor( iLine2, cColor)
            EgtSetColor( iLine3, cColor)
            EgtSetColor( TextId, cColor)
         end
      end
   else  -- Quotatura a destra

      if abs(ptSx:getY() - ptDx:getY()) < GEO.EPS_SMALL then  -- Caso di quota nulla

         local Uvx = Vector3d(1, 0, 0)
         local iLine = EgtLinePVL(nParentId, ptSx, Uvx, dDistance + ptDx:getX() - ptSx:getX(), iFrame)  
         local pText = Point3d(ptDx:getX() + dDistance + dDistText, ptSx:getY(),0)
         local TextId = EgtTextAdv(nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.ML,iFrame)
         EgtSetInfo( TextId, 'Var', sVar)

         if cColor then
            EgtSetColor( iLine, cColor)
            EgtSetColor( TextId, cColor)
         end
      else  -- Caso di quota non nulla

         local ptSx1 = Point3d(ptDx:getX() + dDistance, ptSx:getY(), 0)
         local ptDx1 = Point3d(ptDx:getX() + dDistance, ptDx:getY(), 0)

         local iLine1 = EgtLine(nParentId, ptSx, ptSx1, iFrame)
         local iLine2 = EgtLine(nParentId, ptDx, ptDx1, iFrame)

         local ptSx2 = Point3d(ptDx:getX() + (dDistance - 0.5 * dLenArr), ptSx:getY(), 0)
         local ptDx2 = Point3d(ptDx:getX() + (dDistance - 0.5 * dLenArr), ptDx:getY(), 0)

         local iLine3 = EgtLine(nParentId, ptSx2, ptDx2, iFrame)
         Arrows(nParentId, ptSx2, ptDx2, dLenArr, iFrame, cColor)

         local pText = Point3d(ptDx1:getX() + dDistText, (ptSx1:getY() + ptDx1:getY())/2,0)
         local TextId = EgtTextAdv(nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.ML,iFrame)
         EgtSetInfo( TextId, 'Var', sVar)

         if cColor then
            EgtSetColor( iLine1, cColor)
            EgtSetColor( iLine2, cColor)
            EgtSetColor( iLine3, cColor)
            EgtSetColor( TextId, cColor)
         end
      end
   end
end

-- Quota orizzontale (bSide: false down, true up)
function CreateLinearDimensionOnX( nParentId, ptP1, ptP2, sText, iTextSize, dDistance, dLenArr, dDistText, bSide, sVar, iFrame, cColor, bRadius, bShiftLeft)

   if not iFrame then
      iFrame = GDB_RT.LOC
   end

   local ptDw -- punto in basso
   local ptUp -- punto in alto

   if ptP1:getY() < ptP2:getY() - GEO.EPS_SMALL then
      ptDw = Point3d( ptP1)
      ptUp = Point3d( ptP2)
   else 
      ptDw = Point3d( ptP2)
      ptUp = Point3d( ptP1)
   end

   -- Quotatura in basso
   if  not bSide then

      -- Caso di quota nulla
      if abs(ptDw:getX() - ptUp:getX()) < GEO.EPS_SMALL then

         local UvY = Vector3d(0, -1, 0)
         local iLine = EgtLinePVL(nParentId, ptUp, UvY, ptUp:getY() - ptDw:getY() + dDistance, iFrame)
         local pText = Point3d(ptDw:getX(), ptDw:getY() - dDistance - dDistText,0)
         local TextId = EgtTextAdv(nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.TC,iFrame)
         EgtSetInfo( TextId, 'Var', sVar)
         if bShiftLeft then
            EgtMove( TextId, Vector3d(-dLenArr/2, dLenArr + abs(ptDw:getX() - ptUp:getX()) + 20, 0)) 
         end
         if cColor then
            EgtSetColor( iLine, cColor)
            EgtSetColor( TextId, cColor)
         end
      
      -- Caso di quota non nulla 
      else
         local ptDw1
         local ptUp1
         local ptDw2
         local ptUp2
         local iLine1
         local iLine2

         if not bRadius then
            ptDw1 = Point3d(ptDw:getX(), ptDw:getY() - dDistance, 0)
            ptUp1 = Point3d(ptUp:getX(), ptDw:getY() - dDistance, 0)

            iLine1 = EgtLine(nParentId, ptDw, ptDw1, iFrame)
            iLine2 = EgtLine(nParentId, ptUp, ptUp1, iFrame)

            ptDw2 = Point3d(ptDw:getX(), ptDw:getY() - (dDistance - 0.5 * dLenArr), 0)
            ptUp2 = Point3d(ptUp:getX(), ptDw:getY() - (dDistance - 0.5 * dLenArr), 0)
         else
            ptDw1 = Point3d(ptDw:getX(), ptDw:getY(), 0)
            ptUp1 = Point3d(ptUp:getX(), ptDw:getY(), 0)
            ptDw2 = Point3d(ptDw:getX(), ptDw:getY(), 0)
            ptUp2 = Point3d(ptUp:getX(), ptDw:getY(), 0)
         end

         local iLine3 = EgtLine(nParentId, ptDw2, ptUp2, iFrame)
         Arrows(nParentId, ptDw2, ptUp2, dLenArr, iFrame, cColor, bRadius)

         local pText = Point3d((ptDw1:getX() + ptUp1:getX())/2, ptDw1:getY() - dDistText,0)
         local TextId = EgtTextAdv(nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.TC,iFrame)
         EgtSetInfo( TextId, 'Var', sVar)
         if bShiftLeft then
            EgtMove( TextId, Vector3d(-dLenArr/2, dLenArr + abs(ptDw:getX() - ptUp:getX()) + 20, 0))
         end

         if cColor then
            if not bRadius then
               EgtSetColor( iLine1, cColor)
               EgtSetColor( iLine2, cColor)
            end
            EgtSetColor( iLine3, cColor)
            EgtSetColor( TextId, cColor)
         end
      end

   -- Quotatura in alto
   else

      -- Caso di quota nulla
      if abs( ptDw:getX() - ptUp:getX()) < GEO.EPS_SMALL then

         local UvY = Vector3d(0, 1, 0)
         local iLine = EgtLinePVL(nParentId, ptDw, UvY, ptUp:getY() - ptDw:getY() + dDistance, iFrame)
         local pText = Point3d(ptUp:getX(), ptUp:getY() + dDistance + dDistText,0)
         local TextId = EgtTextAdv(nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.BC,iFrame)
         EgtSetInfo( TextId, 'Var', sVar)
         if bShiftLeft then
            EgtMove( TextId, Vector3d(-dLenArr/2, dLenArr + abs(ptDw:getX() - ptUp:getX()) + 20, 0))
         end
         if cColor then
            EgtSetColor( iLine, cColor)
            EgtSetColor( TextId, cColor)
         end

      -- Caso di quota non nulla
      else
         local ptDw1
         local ptUp1
         local ptDw2
         local ptUp2
         local iLine1
         local iLine2

         if not bRadius then

            ptDw1 = Point3d( ptDw:getX(), ptUp:getY() + dDistance, 0)
            ptUp1 = Point3d( ptUp:getX(), ptUp:getY() + dDistance, 0)

            iLine1 = EgtLine( nParentId, ptDw, ptDw1, iFrame)
            iLine2 = EgtLine( nParentId, ptUp, ptUp1, iFrame)

            ptDw2 = Point3d( ptDw:getX(), ptUp:getY() + (dDistance - 0.5 * dLenArr), 0)
            ptUp2 = Point3d( ptUp:getX(), ptUp:getY() + (dDistance - 0.5 * dLenArr), 0)
         else

            ptDw1 = Point3d( ptDw:getX(), ptUp:getY(), 0)
            ptUp1 = Point3d( ptUp:getX(), ptUp:getY(), 0)
            ptDw2 = Point3d( ptDw:getX(), ptUp:getY(), 0)
            ptUp2 = Point3d( ptUp:getX(), ptUp:getY(), 0)
         end

         local iLine3 = EgtLine( nParentId, ptDw2, ptUp2, iFrame)
         Arrows( nParentId, ptDw2, ptUp2, dLenArr, iFrame, cColor, bRadius)

         local pText = Point3d( ( ptDw1:getX() + ptUp1:getX()) / 2, ptUp1:getY() + dDistText, 0)
         local TextId = EgtTextAdv( nParentId, pText, 0, sText,"", 400,"S", iTextSize, 1, 0, GDB_TI.BC,iFrame)
         if bShiftLeft then
            EgtMove( TextId, Vector3d( -dLenArr/2, dLenArr + abs( ptDw:getX() - ptUp:getX()) + 20, 0))
         end
         EgtSetInfo( TextId, 'Var', sVar)

         if cColor then
            if not bRadius then
               EgtSetColor( iLine1, cColor)
               EgtSetColor( iLine2, cColor)
            end
            EgtSetColor( iLine3, cColor)
            EgtSetColor( TextId, cColor)
         end
      end
   end
end

-- Quota allineata (bSide: false sx, true dx) 
function CreateLinearDimensionAligned( nParentId, ptP1, ptP2, sText, dTextSize, dDistance, dLenArr, dDistText, bSide, sVar, iFrame, cColor)

   if not iFrame then
      iFrame = GDB_RT.LOC
   end

  -- Se punti coincidenti, esco
   if AreSamePointApprox(ptP1,ptP2) then
      return false 
   end

   -- Se quotatura orizzontale, uso questa
   if abs(ptP1:getY() - ptP2:getY()) < GEO.EPS_SMALL then  
      -- adatto il lato
      if ptP2:getX() > ptP1:getX() then
         bSide = not bSide
      end
      CreateLinearDimensionOnX(nParentId, ptP1, ptP2, sText, dTextSize, dDistance, dLenArr, dDistText, bSide, sVar, iFrame, cColor)
      return true
   end 

   local Vv = ptP2 - ptP1
   Vv:normalize()

   local AngText = atan2( Vv:getY(), Vv:getX())
   local bAngModif = false
   if AngText > 90 then
      AngText = AngText - 180
      bAngModif = true
   elseif AngText < - 90 then
      AngText = AngText + 180
      bAngModif = true
   end

   if bSide then
      Vv:rotate(Z_AX(),-90)
      if bAngModif then
         PointType = GDB_TI.BC
      else
         PointType = GDB_TI.TC
      end
   else
      Vv:rotate(Z_AX(),90)
      if bAngModif then
         PointType = GDB_TI.TC
      else
         PointType = GDB_TI.BC
      end
   end

   local iLine1 = EgtLinePVL(nParentId,ptP1, Vv, dDistance, iFrame)
   local iLine2 = EgtLinePVL(nParentId,ptP2, Vv, dDistance, iFrame)

   local ptP1M = ptP1 + (dDistance - 0.5 * dLenArr) * Vv
   local ptP2M = ptP2 + (dDistance - 0.5 * dLenArr) * Vv

   local iLine3 = EgtLine(nParentId, ptP1M, ptP2M, iFrame)
   Arrows(nParentId, ptP1M, ptP2M, dLenArr, iFrame, cColor)

   local ptText = 0.5 * ( ptP1 + ptP2) + ( dDistance + dDistText) * Vv
   local TextId = EgtTextAdv(nParentId, ptText, AngText , sText,"", 400,"S", dTextSize, 1, 0, PointType,iFrame)
   EgtSetInfo( TextId, 'Var', sVar)

   if cColor then
      EgtSetColor( iLine1, cColor)
      EgtSetColor( iLine2, cColor)
      EgtSetColor( iLine3, cColor)
      EgtSetColor( TextId, cColor)
   end
end

-- Quota radiale (bSide: false sx, true dx) 
function CreateRadialDimension( nParentId, ptC, ptP1, sText, dTextSize, dDistance, dLenArr, dDistText, bSide, sVar, iFrame, cColor)

   if not iFrame then
      iFrame = GDB_RT.LOC
   end

  -- Se punti coincidenti, esco
   if AreSamePointApprox(ptC,ptP1) then
      return false 
   end

   -- Se quotatura orizzontale, uso questa
   if abs( ptC:getY() - ptP1:getY()) < GEO.EPS_SMALL then  
      -- adatto il lato
      if ptP1:getX() > ptC:getX() then
         bSide = not bSide
      end
      CreateLinearDimensionOnX( nParentId, ptC, ptP1, sText, dTextSize, dDistance, dLenArr, dDistText, bSide, sVar, iFrame, cColor, true)
      return true
   end 

   local Vv = ptP1 - ptC
   Vv:normalize()

   local AngText = atan2( Vv:getY(), Vv:getX())
   local bAngModif = false
   if AngText > 90 then
      AngText = AngText - 180
      bAngModif = true
   elseif AngText < - 90 then
      AngText = AngText + 180
      bAngModif = true
   end

   local ptText
   if bSide == nil then
      AngText = 0
      Vv = - Vv
      ptText = ptC + ( dDistText + 0.5 * dTextSize) * Vv
      PointType = GDB_TI.MC
   elseif bSide then
      Vv:rotate( Z_AX(), -90)
      ptText = 0.5 * ( ptC + ptP1) + ( dDistText) * Vv
      PointType = EgtIf( bAngModif, GDB_TI.BC, GDB_TI.TC)
      
   else 
      Vv:rotate( Z_AX(), 90)
      ptText = 0.5 * ( ptC + ptP1) + ( dDistText) * Vv
      PointType = EgtIf( bAngModif, GDB_TI.TC, GDB_TI.BC)
   end

   local iLine3 = EgtLine( nParentId, ptC, ptP1, iFrame)
   Arrows( nParentId, ptC, ptP1, dLenArr, iFrame, cColor, true)

   local TextId = EgtTextAdv( nParentId, ptText, AngText , sText,"", 400,"S", dTextSize, 1, 0, PointType, iFrame)
   EgtSetInfo( TextId, 'Var', sVar)

   if cColor then
      EgtSetColor( iLine3, cColor)
      EgtSetColor( TextId, cColor)
   end
end

-- Quota angolare (bSide: false = text external, true dx = text internal) 
function CreateAngleDimension( nParentId, ptC, dDir, sText, dTextSize, dAngVal, dAmpArc, dDistance, dLenArr, dDistText, bSide, sVar, iFrame, cColor)

   if not iFrame then
      iFrame = GDB_RT.LOC
   end

  -- Se distanza quota nulla, esco
   if abs(dAmpArc) < GEO.EPS_SMALL or abs(dAngVal) < GEO.EPS_SMALL then
      return false 
   end

   -- disegno linee da quotare
   local iLine1 = EgtLinePDL(nParentId, ptC, dDir, dAmpArc, iFrame)
   local iLine2 = EgtLinePDL(nParentId, ptC, dDir+dAngVal, dAmpArc, iFrame)
   -- prendo i punti finali delle due linee
   local ptP1 = EgtEP(iLine1)
   local ptP2 = EgtEP(iLine2)
   -- allungo di nuovo le linee della distanza extra
   EgtTrimExtendCurveByLen( iLine1, dDistance,ptP1)
   EgtTrimExtendCurveByLen( iLine2, dDistance,ptP2)
   -- arco  
   local iArc1 = EgtArcCPA( nParentId, ptC, ptP1, dAngVal, 0, iFrame) 
   local pPt3 = EgtMP(iArc1)

   -- frecce
   local iLine3
   local ptP4
   local nNeg = -1
   if dAngVal > 0 then
      nNeg = 1
   end
   -- faccio linee che parte da punto di freccia perpendicolare a linea di quota
   iLine3 = EgtLinePDL(nParentId, ptP1, dDir+(90*nNeg), dAmpArc, iFrame)
   ptP4 = EgtEP(iLine3)
   EgtErase(iLine3)
   -- prima freccia sulla prima linea
   Arrows( nParentId, ptP4, ptP1, dLenArr, iFrame, cColor, true)

   iLine3 = EgtLinePDL(nParentId, ptP2, dDir+dAngVal-(90*nNeg), dAmpArc, iFrame)
   ptP4 = EgtEP(iLine3)
   EgtErase(iLine3)
   -- seconda freccia sulla seconda linea
   Arrows( nParentId, ptP4, ptP2, dLenArr, iFrame, cColor, true)

   local Vv = ptP1 - ptC
   Vv:normalize()

   local AngText = 0
   local bAngModif = false

   local ptText
   if bSide == nil then
      ptText = pPt3 + ( dDistText + 0.5 * dTextSize) * Vv
      PointType = GDB_TI.MC
   elseif bSide then
      ptText = pPt3 + ( dDistText + 0.5 * dTextSize) * Vv
      PointType = GDB_TI.MC
   else 
      ptText = pPt3 - ( dDistText + 0.5 * dTextSize) * Vv
      PointType = GDB_TI.MC
   end

   local TextId = EgtTextAdv( nParentId, ptText, AngText , sText,"", 400,"S", dTextSize, 1, 0, PointType, iFrame)
   EgtSetInfo( TextId, 'Var', sVar)

   if cColor then
      EgtSetColor( iLine1, cColor)
      EgtSetColor( iLine2, cColor)
      EgtSetColor( iArc1, cColor)
      EgtSetColor( TextId, cColor)
   end
end

return EgtDimension