fixed hard coded exagerration factors

src/frame3dd.py

@@ -70,6 +70,10 @@ def write_frame3dd_file(nodes,global_args,beam_sets,constraints,loads):
         length_scaling = global_args['length_scaling']
     except(KeyError): 
         length_scaling = 1.
+    try: 
+        zoom_scale = global_args['zoom_scale']
+    except(KeyError): 
+        zoom_scale = 1.
     try: 
         node_radius = global_args['node_radius']*length_scaling 
     except(KeyError):
@@ -92,7 +96,7 @@ def write_frame3dd_file(nodes,global_args,beam_sets,constraints,loads):
         full_loads[l['node'],l['DOF']] = l['value']
     loaded_nodes = where(any(full_loads!=0, axis=1))[0]
 
-    #beams is flattened beam_sets
+    #beams is flattened beam_sets{}
     beams = vstack([beams for beams,args in beam_sets])
     beam_division_array = hstack([args['beam_divisions']*ones(shape(bs)[0],dtype=int) for bs,args in beam_sets])
     assert(shape(beams)[0]==shape(beam_division_array)[0])
@@ -201,7 +205,7 @@ def write_frame3dd_file(nodes,global_args,beam_sets,constraints,loads):
         write_row([1,"","#whether to include shear deformation"])
         write_row([1,"","#whether to include geometric stiffness"])
         write_row([exagerration,"","#exagerrate static mesh deformations"])
-        write_row([2.5,"","#zoom scale for 3d plotting"])
+        write_row([zoom_scale,"","#zoom scale for 3d plotting"])
         write_row([1.,"","#x axis increment for internal forces"])
         write_row([])
         write_row([1,"","#number of static load cases"])
@@ -252,7 +256,7 @@ def write_frame3dd_file(nodes,global_args,beam_sets,constraints,loads):
             write_row([0,"","#0= consistent mass matrix, 1= lumped mass matrix"])
             write_row([.0001,"","#frequency convergence tolerance  approx 1e-4"])
             write_row([0.,"","#frequency shift-factor for rigid body modes, make 0 for pos.def. [K]"])
-            write_row([.5,"","#exaggerate modal mesh deformations"])
+            write_row([exagerration,"","#exaggerate modal mesh deformations"])
 
             write_row([0,"","#number of nodes with extra node mass or rotary inertia"])
             write_row([0,"","#number of frame elements with extra node mass"])