Calling UCVM With Fortran

Example Code

               program example

 

       c       UCVM Configuration Location
               CHARACTER(LEN=32) ucvmconf
       c       Model Name
               CHARACTER(LEN=4) model 
       c       Number of points we're passing to ucvm_query
               INTEGER pts      

       c       The UCVM point data structure. 
       c       coord(1) is longitude
       c       coord(2) is latitutde
       c       coord(3) is depth
               TYPE :: ucvm_point_t
                      REAL*8 coord(3)
               END TYPE ucvm_point_t

       c       Generic property structure
       c       Source is where it comes from
       c       vp is P-wave velocity in m/s
       c       vs is S-wave velocity in m/s
       c       rho is density in kg/m^3
               TYPE :: ucvm_prop_t
                       INTEGER source
                       REAL*8 vp
                       REAL*8 vs
                       REAL*8 rho
               END TYPE ucvm_prop_t

       c       Returned data structure
               TYPE :: ucvm_data_t
                       REAL*8 surf
                       REAL*8 vs30
                       REAL*8 depth
                       INTEGER domain
                       REAL*8 shift_cr
                       REAL*8 shift_gtl
                       type(ucvm_prop_t) crust
                       type(ucvm_prop_t) gtl
                       type(ucvm_prop_t) cmb
               END TYPE ucvm_data_t

       c       For our example we'll query five points
               type(ucvm_point_t) point(5)
       c       And we'll get back five sets of material properties
               type(ucvm_data_t) returnData(5)

       c       Number of points is 5.
               pts = 5

       c       We'll start at -118, 34 at 0 depth and go down by 1000m
       c       each step
               do 10 i = 1, 5
                       point(i)%coord(1) = -118
                       point(i)%coord(2) = 34
       10            point(i)%coord(3) = (i - 1) * 1000

       c       Where is our configuration file?
               ucvmconf = "/home/scec-01/davidgil/ucvm.conf"

       c       What model are we querying?
               model = "cvms"

       c       Initialize UCVM
               call ucvm_init(ucvmconf)

       c       Add the model to UCVM
               call ucvm_add_model(model)

       c       Query the model. Note that the number of points is passed
       c       by value, not reference.
               call ucvm_query(%VAL(pts), point, returnData)

               print *, model, " results for lon -118, lat 34"

       c       Print out the results.
               do 20 i = 1, 5
                       print *, "Depth ", (i - 1) * 1000
                       print *, "Vs ", returnData(i)%crust%vs 
                       print *, "Vp ", returnData(i)%crust%vp 
                      print *, "Rho ", returnData(i)%crust%rho
       20      continue

       c       Close UCVM now that we've queried the points 
               call ucvm_finalize()

               end