Import geometry from Mascaret or HEC-RAS file

Mascaret Software (http://www.openmascaret.org) is a 1D free-flow hydraulic modelisation code based on Saint-Venant equations and developped by EDF R&D and the Centre d’Etudes Techniques Maritimes et Fluviales (CETMEF).

HEC-RAS software (http://www.hec.usace.army.mil/software/hec-ras/) is a one and two-dimensional hydraulic modelisation code developped by the US Army Corps of Engineers.

Importation of geometry file (.geo file for Mascaret, .g01, .g02... for HEC-RAS) is available in the Import sections and cross profiles in text format tool.

This tool allows to import cross sections of and into only one reach. In case of having several reaches in the file, only the first reach will be imported, into the current reach selected on the SIC² interface. To import the next reaches, you must delete the lines concerning the reach already imported in the file and then do a new importation, into another reach.

Macaret specifications

In Mascaret software, description of cross profiles contains a topology and a bathymetry parts which are converted in SIC² into minor and medium river bed. Also, separation between minor and medium bed in Mascaret depends on abscissa in the profil when it depends on minor-medium elevation overflow in SIC² (cf. Sections description). This separation in Mascaret can occur for two different elevation on the left and right banks, SIC² will store the mean value by default, but in case of several beds, a screen will be displayed allowing you to select the value you want among different options.

Example of imported file

PROFIL Bief_1 P_29 13150.0
0.0 31.0 T
51.05 28.0 T
3535.11 27.1 T
3609.48 27.1 T
3619.07 26.63 B
3627.03 22.7 B
3688.68 14.6 B
3700.09 15.46 B
3822.77 23.98 B
3827.4 24.23 B
3835.92 24.15 T
3850.62 38.0 T
PROFIL Bief_1 DUPL_P_30_A 13950.0
0.0 31.0 T
44.74 27.75 T
2974.32 27.3 T
2987.55 27.17 B
3087.12 14.18 B
3184.8 25.09 B
3219.98 25.0 T
3693.8 35.0 T

HEC-RAS specifications

HEC-RAS allows the use of multiple beds more complex than the concept of minor / medium bed developed in SIC and Mascaret. The import into SIC does not take into account the different beds detailed in HEC-RAS and places the entire section
in the minor bed.

Example of imported file

Geom Title=Base Geometry Data
Program Version=4.00
Viewing Rectangle= 0.0614 , 0.8779 , 1.0165 , 0.0426

River Reach=Butte Cr.       ,Tributary      
Reach XY= 15
          0.756       0.9830827           0.732       0.9755639
            0.7       0.9567669       0.6746667       0.9172932
          0.644       0.8721805       0.6306667       0.8289474
      0.5986667       0.7932331       0.5718829       0.7725555
      0.5426667            0.75       0.5146667       0.7142857
      0.4893333       0.6578947            0.48       0.6109023
      0.4746667       0.5601504       0.4600303       0.5263027
      0.4452555       0.4921348
Rch Text X Y=0.6506667,0.8590226
Reverse River Text=-1

Type RM Length L Ch R = 1 ,0.2     ,500,500,500
BEGIN DESCRIPTION:
Upstream Boundary of Butte Cr.
END DESCRIPTION:
XS GIS Cut Line=5
0.76654992940443 0.95100091453960.757316930017350.97887906106609
          0.756       0.98308270.754683069982660.98728633893391
0.748537396568381.00690332062549
Node Last Edited Time=Jul/08/1997 13:59:46
#Sta/Elev= 8
    210      90     220      82     260      80     265      70     270      71
    275      81     300      83     310      91
#Mann= 3 , 0 , 0
    210     .07       0     260     .04       0     275     .07       0
Bank Sta=260,275
XS Rating Curve= 0 ,0
Exp/Cntr=0.3,0.1

Type RM Length L Ch R = 1 ,0.1     ,500,500,500
BEGIN DESCRIPTION:
Upstream Boundary of Butte Cr.
END DESCRIPTION:
XS GIS Cut Line=5
0.59020551178268 0.74403505399820.572259239672030.76728092779905
0.569567297985670.770767808197710.566875356299310.77425468859636
0.554312965514880.79052680001996
Node Last Edited Time=Jul/08/1997 13:59:46
#Sta/Elev= 8
    210    89.4     220    81.4     260    79.4     265    69.4     270    70.4
    275    80.4     300    82.4     310    90.4
#Mann= 3 , 0 , 0
    210     .07       0     260     .04       0     275     .07       0
Bank Sta=260,275
XS Rating Curve= 0 ,0
Exp/Cntr=0.3,0.1

Type RM Length L Ch R = 1 ,0.0     ,0,0,0
BEGIN DESCRIPTION:
Upstream Boundary of Butte Cr.
END DESCRIPTION:
XS GIS Cut Line=5
0.484413027535690.497599132986690.457457886370460.50925501974819
0.453414614630170.511003401454660.449371342889890.51275178316112
0.43050274258970.52091090046108
Node Last Edited Time=Jul/08/1997 13:59:46
#Sta/Elev= 8
    210    89.1     220    81.1     260    79.1     265    69.1     270    70.1
    275    80.1     300    82.1     310    90.1
#Mann= 3 , 0 , 0
    210     .07       0     260     .04       0     275     .07       0
Bank Sta=260,275
XS Rating Curve= 0 ,0
Exp/Cntr=0.3,0.1