door mechanism

[Joscha]

Hi

this is nothing big. I just wanted to share a video of my first LDcad model. Since my first contact with LDraw.org I have the idea to design and hopefully later build a large spaceship. This door mechanism shall be integrated into it. A big thankyou to Roland for his great work. It is really fun to design things, to animate them and to render them. I just miss the space navigator integration  

Regards
Joscha

[Philippe Hurbain]

VERY nice!

[Roland Melkert]

Hi

this is nothing big. I just wanted to share a video of my first LDcad model. Since my first contact with LDraw.org I have the idea to design and hopefully later build a large spaceship. This door mechanism shall be integrated into it. A big thankyou to Roland for his great work. It is really fun to design things, to animate them and to render them. I just miss the space navigator integration  

Regards
Joscha

Very nice indeed.

I always wanted to draw/build an insanely large ship, something like the Red Dwarf.

fyi: In one episode they took the lift down to a remote deck which took so long they could watch a movie during the ride

[Joscha]

Very nice indeed.

I always wanted to draw/build an insanely large ship, something like the Red Dwarf.

fyi: In one episode they took the lift down to a remote deck which took so long they could watch a movie during the ride

omg, I had to google what the red dwarf is. Never heard about it before. I was more the Kirk fan.

[Jarema]

Good work. Are you doing animations manually or by using a script, available online ?

[Joscha]

Good work. Are you doing animations manually or by using a script, available online ?

Thank you. I studied one of Roland's scripts and then adapted it respectively added the required movements.

[Jarema]

Can you share you work with us ... or gave me a clue via PM how build this stuff by yourself ? Thanks again.

[Joscha]

Can you share you work with us ... or gave me a clue via PM how build this stuff by yourself ? Thanks again.

Here is the script. It has a lot from Roland's example for the 5580 Truck. Sorry, so far there are no comments inside.

Code:

function sineWave(time, freq, amp)  return math.sin(time*freq*2*math.pi)*amp end function register()    local ani=ldc.animation('Demo')    ani:setLength(20)    ani:setEvent('start', 'onStart')    ani:setEvent('frame', 'onFrame') end function onStart()    local mainSf=ldc.subfile()      doorUpper=mainSf:getGroup('doorUpper')  doorLower=mainSf:getGroup('doorLower')  doorUpperPos=doorUpper:getPos()  doorLowerPos=doorLower:getPos()  axleUpper=mainSf:getGroup('axleUpper')  axleLower=mainSf:getGroup('axleLower')  axleVert=mainSf:getGroup('axleVert')    pneu_cyl=mainSf:getGroup('pneumatic_cylinder')  pneu_pis=mainSf:getGroup('pneumatic_piston')  axleUpperRestOri=axleUpper:getOri()  axleLowerRestOri=axleLower:getOri()  axleVertRestOri=axleVert:getOri()    cylRestOri=pneu_cyl:getOri()  pisRestOri=pneu_pis:getOri()  pisPos=pneu_pis:getPos() end function calcDoors(displPerc)    local wavedisp= -50*math.cos(displPerc/100*math.pi)+50  local displ=64*wavedisp/100  doorUpper:setPos(doorUpperPos:getAdd(0,displ,0))  doorLower:setPos(doorLowerPos:getAdd(0,-displ,0))  local oriUpper=ldc.matrix()  local oriLower=ldc.matrix()  local oriVert=ldc.matrix()  local oriCyl=ldc.matrix()  local oriPis=ldc.matrix()  local angle=(360/16)/8*64*wavedisp/100    oriUpper:set(axleUpperRestOri)  oriUpper:mulRotateAB(angle,0,0,-1)  axleUpper:setOri(oriUpper)  oriLower:set(axleLowerRestOri)  oriLower:mulRotateAB(angle,0,0,1)    axleLower:setOri(oriLower)  local angleVert=16/24*(360/16)/8*64*wavedisp/100  oriVert:set(axleVertRestOri)  oriVert:mulRotateAB(angleVert,0,-1,0)  axleVert:setOri(oriVert)  local yPos=40*math.sin((30+angleVert)*math.pi/180)-20  local xPos=40*math.cos(30*math.pi/180)-40*math.cos((30+angleVert)*math.pi/180)    local lengthA=120  local lengthB=math.sqrt((120+xPos)^2+yPos^2)  local lengthC=math.sqrt(xPos^2+yPos^2)  local angleGamma=180/math.pi*math.acos((lengthA^2+lengthB^2-lengthC^2)/(2*lengthA*lengthB))  oriCyl:set(cylRestOri)  oriCyl:mulRotateAB(angleGamma,0,1,0)  pneu_cyl:setOri(oriCyl)    oriPis:set(pisRestOri)  oriPis:mulRotateAB(angleGamma,0,1,0)  pneu_pis:setOri(oriPis)  pneu_pis:setPos(pisPos:getAdd(yPos,0,xPos)) end function calcUpDownAngle(curTime, ofs, len, minAngle, maxAngle)    if (curTime<=ofs) then    return minAngle  else    local endTime=ofs+len    if (curTime>=endTime) then      return minAngle    else      local relTime=curTime-ofs      local subLen=0.5*len      if (relTime<subLen) then        return minAngle+(maxAngle-minAngle)*relTime/subLen      else        return maxAngle-(maxAngle-minAngle)*(relTime-subLen)/subLen      end    end  end end function onFrame()    local ani=ldc.animation.getCurrent()    local curTime=ani:getFrameTime()  local totTime=ani:getLength()    calcDoors(calcUpDownAngle(curTime, 0, 20, 0, 100))   end register()