#============================================================* # test surface transofrmation * #============================================================* # set units units units scale name = mass uname = reducedMass value = 10000.0 # open pdb file database open name = neck_xform format = pdb file = ../../data/two_necks.pdb # read molecule molecule read database = neck_xform name = m1 model = 1 type = protein # create domains domain create hc = C #domain hc backbone color = [ 0.6 0.6 0.6 ] width = 2 show domain create iq1 = C[760-788] domain iq1 backbone color = [ 1 0 0 ] width = 2 show domain create iq2 = C[788-814] domain iq2 backbone color = [ 0 1 0 ] width = 2 show domain create iq3 = DC[814-836] domain iq3 backbone color = [ 0 0 1 ] width = 2 show domain iq3 surface read format = pm file = sasa/camD_surf.pm domain iq3 surface color = [ 0.3 0.3 1.0 ] render = color show #--------------------------------------------------------------# # create bodies # #--------------------------------------------------------------# # 1st group body create name = ground type = ground body create name = iq1_body type = rigid domain = iq1 body create name = iq2_body type = rigid domain = iq2 body create name = iq3_body type = rigid domain = iq3 #--------------------------------------------------------------# # create joints # #--------------------------------------------------------------# # 1st group joint create name = jnt1 type = ball domain = hc res = C[760] use = CA joint jnt1 bodies = { ground iq1_body } joint jnt1 color = [ 1 0 0 ] msize = 0.1 shading = color show = true joint create name = jnt2 type = ball domain = hc res = C[788] use = CA joint jnt2 bodies = { iq1_body iq2_body } joint jnt2 color = [ 0 1 0 ] msize = 0.1 shading = color show = true joint create name = jnt3 type = ball domain = hc res = C[814] use = CA joint jnt3 bodies = { iq2_body iq3_body } joint jnt3 color = [ 0 0 1 ] msize = 0.1 shading = color show = true #--------------------------------------------------------------# # create a rigid simulation # #--------------------------------------------------------------# simulation create name = rsim type = rigid # add bodies #----------- simulation rsim add body = ground simulation rsim add body = iq1_body simulation rsim add body = iq2_body simulation rsim add body = iq3_body # add joints #----------- simulation rsim add joint = jnt1 simulation rsim add joint = jnt2 simulation rsim add joint = jnt3 # set solver #----------- simulation rsim solver = ode simulation rsim solver finite_rotation = on # add random forces #------------------ force create name = force1 \ type = random \ mean = 0.0 \ sd = 500.0 \ seed = 147321 \ scale = 0.1 #simulation rsim add force = force1 \ body = iq3_body \ time = { 0 1000 } # add directed forces #-------------------- force create name = force2 \ type = explicit \ point = [ 0 0 0 ] \ direction = [ 1 0 0 ] \ scale = 0.01 simulation rsim add force = force2 \ body = iq3_body \ time = { 0 20 } # initialize simulation #---------------------- simulation rsim initialize #simulation rsim momentum = off simulation rsim time step = 0.02 simulation state save_frequency = 10 # step simulation #---------------- #simulation rsim step = 200 graphics background color = [ 1 1 1 ]