Name
trg — Triangulate point data
Syntax
trg [rlf | inl | fau | remeq]
Description
Creates a triangle mesh from input points. The triangulation is of Delaunay type which tries to optimize the triangle with respect to equal sides.
Arguments
No argument. Triangulate the input data. Only the points are honoured.
inl
Convert a seismic inline to a triangulated seismic section.
rlf x | y | z sca scalefactor
Turn the scalar values into x | y | z coordinates as a relief using scalefactor to control the expansion.
fau faultlines
Make triangulated polydata in workspace faultlines within the fault polygon if the points are ordered counterclockwise. Otherwise it will be outside the fault polygon.
remeq
Remove triangles of equal z values. Thus the triangulation will only go between lines of unequal height.
Examples
Ex.1: Triangulation towards faults
# Gridding of welldata and closed stick faults
xwi sel ;# select and raise current window if hidden
wmp name {Geocap Closed Stick Faults} ; # window name
set datapath [file join $Geocap::geocapdir data]
vie def ini ;# viewport default and initiate
rea $datapath/csf_wells.vtk ;# read well data
ssc ;# self scale
poi ;# display points
col whi ;# white colour
poi val ;# display point values
mhi csf_wells ;# save in high
rea $datapath/csf_faults.vtk ;# read faults
col red ;# red colour
pol ;# polygon display
mhi csf_fau ;# save in high
d2 ;# 2d mode
dra win ;# draw windows frame
sta Welldata and closed stick faults ;# stack text
col gre ;# select green colour
tx2 lle ;# 2d text
tx2 ule txt {Gridding is in progress ..... Wait}
mlo csf_wells ;# move down well data
grp 88 88 trg csf csf_fau ;# grid welldata, triangulate closed stick faults
d3 ;# 3d mode
upd d ;# downwards view
z ;# erase screen
scaz 4 ;# scale_in_z, turn off by: scaz off
ssc ;# self scale
acm n 12 nor sma ;# colour map
mhi trgdata ;# save in high the result model data
mlo closedGenFaults ;# move down closed stick faults with values
col red ;# red colour
pot .5 ;# tube with size
mlo csf_wells ;# move low well data
col mag ;# magenta
poi ;# display points
cco ;# colour code
tx2 lle sha col whi txt {Generated horizon model} ;# 2d text
mlo trgdata ;# move low the result
The above example produces this image.
Triangulated grid model to model fault traces