Mapping FISH from Old to New FLAC2D Syntax

This document lists FISH function names from FLAC 8.1 (and earlier) and provides links to their FLAC2D 9 (and later) counterparts. They are organized into FLAC2D-specific functions and general FISH functions, and subdivided from there into groups according to the kind of operations they perform. Tip: using page search for the browser (Ctrl+F) can help locate a function quickly; the list below is extensive.

See the Notes section at the end of the page for various details of usage.

Table 1: This Page: FISH Functions by Group

FLAC-Intrinsic Functions	FISH Intrinsic Functions
General FLAC2D Functions	Mathematical and Utility Functions
Zone Functions	Table Functions
Zone Gridpoint Functions	Memory-access Functions
Constitutive Model Variables	Input-Output Functions
	Socket I/O Routines

Warning

There will not necessarily be a direct mapping of old to new function arguments nor of return types. FLAC2D 9.0 takes advantage on occasion of the new types available in FISH (tensors, matrices, etc.) to streamline FISH intrinsics.

Table 2: General FLAC2D Functions

FLAC 8.1	FLAC2D 9.0
app_pnt	No direct equivalent. See “gp.force.app”
appgw_pnt	No direct equivalent. See “gp.fluid.app” and “gp.pp.fix”
appth_pnt	No direct equivalent. See “gp.temp.app” and “gp.temp.fix”
att_pnt	No direct equivalent. Use “attach.list to loop through attach conditions.
cf_axi	No equivalent.
cf_creep	No equivalent.
cf_dyn	No equivalent.
cf_ext	No equivalent.
cf_gw	No equivalent.
cf_ps	No equivalent.
cf_therm	No equivalent.
cm_max	No equivalent.
crtdel	zone.creep.timestep
crtime	zone.creep.time.total
cycle	global.cycle
dydt_gpi	??
dydt_gpj	??
dytdel	zone.dynamic.timestep
dytime	zone.dynamic.time.total
error	system.error
fos	global.fos
fos_f	No equivalent.
gwtdel	zone.fluid.timestep
gwtime	zone.fluid.time.total
ieb_pnt	No equivalent.
ierr	No equivalent.
igp	No direct equivalent. Use “gp.num” to get total number of gridpoints.
int_pnt	zone.interface.head
izones	No direct equivalent. Use “zone.num” to get total number of zones.
i_list	interface.list
jerr	No equivalent.
jgp	No direct equivalent. Use “gp.num” to get total number of gridpoints.
jzones	No direct equivalent. Use “zone.num” to get total number of zones.
large	global.largestrain
mode	??
nerr	No equivalent. Use “system.error”
nerr_fish	No equivalent. Use “system.error”
s_3dd	No equivalent.
s_dyn	No equivalent. Use “model dynamic active on”.
s_echo	No equivalent. Use “program echo”.
s_flow	No equivalent. Use “model fluid active on”.
s_imp	No equivalent. Use “zone fluid implicit” or “zone thermal implicit”.
s_log	No equivalent. Use “program log”
s_mech	No equivalent. Use “model mechanical active on”.
s_mess	No direct equivalent. See “io.dialog.message”.
s_movie	No equivalent. Use “plot movie”.
s_flow	No equivalent. Use “model thermal active on”.
sm_max	No equivalent.
sratio	zone.mech.ratio
step	global.step
str_pnt	struct.head
tab_pnt	No direct equivalent. See “table.find”.
ten_flg	No equivalent.
thtdel	zone.thermal.timestep
thtime	zone.thermal.time.total
trac_pnt	No equivalent.
udm_pnt	??
unbal	zone.unbal
unbflow	zone.fluid.unbal.max or “zone.fluid.unbal.avg”
v_ngw	No equivalent. Use “model fluid substep”.
v_nmech	No equivalent. Use “model mechanical substep”.
v_ntherm	No equivalent. Use “model thermal substep”.
wbiot	No equivalent. Use “zone fluid property biot”.
wbulk	gp.fluid.modulus.
xdens	zone.fluid.density.
xgrav	global.gravity.x
ygrav	global.gravity.y

Table 3: Zone Functions

FLAC 8.1	FLAC2D 9.0
area	zone.area
density	zone.density
dy_state	zone.state
e_plastic	zone.property with input string strain-shear-plastic
et_plastic	zone.property with input string strain-tension-plastic
ev_plastic	zone.property with input string strain-volumetric-plastic
ev_tot	zone.property with input string strain-volumetic-total
ex_n	zone.extra. Extra varaiable index is an input to the function.
fsi	zone.strain.inc
fsr	zone.strain.rate
flags	No equivalent
inimodel	No equivalent
k11	zone.fluid.prop with input string permeability-xx
k12	zone.fluid.prop with input string permeability-xy
k22	zone.fluid.prop with input string permeability-yy
model	zone.model
poro2	No equivalent. Two-phase flow not supported.
pp	zone.pp
ssi	No equivalent
ssr	No equivalent
ssi3d	zone.strain.inc
ssr3d	zone.strain.rate
sxx	zone.stress.xx
sxy	zone.stress.xy
syy	zone.stress.yy
szz	zone.stress.zz
udcoe	No equivalent. Two-phase flow not supported.
visrat	No equivalent. Two-phase flow not supported.
vsi	zone.strain.vol.inc
vsr	zone.strain.vol.rate
vol_strain	zone.strain.vol.inc
vsxx	No equivalent
vsxy	No equivalent
vsyy	No equivalent
vszz	No equivalent
wk11	No equivalent. Two-phase flow not supported.
wk12	No equivalent. Two-phase flow not supported.
wk22	No equivalent. Two-phase flow not supported.
xcen	zone.pos.x
xflow	zone.flow.x
xnwflow	No equivalent. Two-phase flow not supported.
ycen	zone.pos.y
yflow	zone.flow.y
ynwflow	No equivalent. Two-phase flow not supported.
z_group	zone.group
z_hyst	zone.hysteretic
z_model	zone.model
z_prop	zone.prop
zmsmul	zone.dynamic.mul

Table 4: Zone Gridpoint Functions

FLAC 8.1	FLAC2D 9.0
damp	No equivalent.
disp	gp.disp
ex_n	gp.extra. The extra variable index is an input.
f2mod	No equivalent. Two-phase flow not supported.
flags	No equivalent.
fmod	gp.fluid.modulus
ftens	gp.fluid.tension
g2flow	No equivalent. Two-phase flow not supported
gflow	gp.flow
gmsmul	gp.dynamic.mul
gpp	gp.pp
nwgp	No equivalent. Two-phase flow not supported
rsat	No equivalent. Two-phase flow not supported
sat	gp.sat
temp	gp.temp
tflow	gp.flux
vga	No equivalent (yet).
vgp0	No equivalent (yet).
vgpcnw	No equivalent (yet).
vgpcw	No equivalent (yet).
x	gp.pos.x
xacc	gp.accel.x
xbody	No equivalent. See “gp.force.load.x”
xdisp	gp.disp.x
xforce	gp.force.unbal.x
xvel	gp.vel.x
y	gp.pos.y
yacc	gp.accel.y
ybody	No equivalent. See “gp.force.load.y”
ydisp	gp.disp.y
yforce	gp.force.unbal.y
yvel	gp.vel.y

Table 5: Constitutive Model Variables

	Use zone.prop with the appropriate string for the desired property.
	See zone property to get links to property names for each constitutive model.

FISH Intrinsic Functions

Table 6: Mathematical and Utility Functions

FLAC 8.1	FLAC2D 9.0
abs	math.abs
acos	math.acos
and	math.and
asin	math.asin
atan	math.atan
atan2	math.atan2
clock	time.clock
cos	math.cos
degrad	math.degrad
do_update	No equivalent
error	util.error
exp	math.exp
fc_arg	Not supported. Pass arguments directly to functions.
float	float
grand	math.random.gauss
in	io.in
int	int
ln	math.ln
log	math.log
mat_inverse	matrix.inverse
mat_transpose	matrix.transpose
max	math.max
min	math.min
not	math.not
or	math.or
out	io.out
pi	math.pi
rez_exe	No equivalent
sgn	math.sgn
sin	math.sin
sqrt	math.sqrt
string	string
tan	math.tan
type	type
urand	math.random.uniform

Table 7: Table Functions

FLAC 8.1	FLAC2D 9.0
table	table
table_size	table.size
xtable	table.x
ytable	table.y

Table 8: Memory-access Functions

FLAC 8.1	FLAC2D 9.0
fmem	Data is not stored in arrays in FLAC2D, but it is possible to create your own memory arrays. See for example memory
imem	Data is not stored in arrays in FLAC2D, but it is possible to create your own memory arrays. See for example memory

Table 9: Input-Output Functions

FLAC 8.1	FLAC2D 9.0
close	file.close
cparse	No equivalent
fstring	string
open	file.open
out	io.out
parse	string.token
pre_parse	string.token.type
read	file.read
string	string
write	file.write

Table 10: Socket I/O Routines

FLAC 8.1	FLAC2D 9.0
sclose	socket.close
sopen	socket.open
sread	socket.read.array
swrite	socket.write.array

Notes

There is no direct access of variables through memory function (e.g. fmem) in FLAC2D. All data is available through FISH intrinsice, so this direct access is no longer necessary. For example, to access the id of a structural element, use struct.id rather than “imem(sel+$kelid)”.