Name
con — Contour dataset using scalars
Syntax
con i | v | s | n | ms | l [noadj] [sav]
Description
Contor dataset with lines following the scalar values.
Arguments
Main contouring arguments:
Note that the main contouring arguments are the same for other shell commands that contour in various ways.
i incr
incr is the increment value.
v val1 [val2 val3 ...]
Contour at specific values, val1, val2, ...
s start increment stop
s for step needs three numbers: start, increment and stop The first and last contour will be at start and stop.
n number
Use number contours (levels), equally distributed between the minimum and maximum value.
ms start1 incr1 stop1 start2 incr2 stop2
ms for multiple steps needs six following numbers. The first contour will be at start1, the last at stop2.
l
Use levels from the last previous contouring operation.
noadj
The contours will, by default, be lifted up (or adjusted) a little bit for better visualization. This can be prevented with the noadj argument. Use this argument for contouring vertical surfaces like cross sections.
sav [nodraw]
Will save the contours in active and in workspace under the name ^con which is not directly visible. If the sav argument is used in a command menu which restores the original active data, the user must make it active by mlo ^con. The nodraw argument prevents the contours to be drawn on the screen.
Examples
Ex.1: Contours following scalars
The above example produces this image.
spe bgc whi ;# specify background color to white
vie def ;# reset viewport
ret 10 ;# return start window
vie 4 1 1 ;# set up 4 viewports, select first
mak ran 11 ;# make random points
grp 70 70 ;# make grid and scalars
ssc ;# self scale
mak p ;# transform grid to polydata
acm n 11 ;# map display
con l ;# contour using same levels
mak sca ;# be sure the scalars are there
mhi grid1 ;# move grid to hi grid1
vie 2 con ;# select viewport 2and connect
mak ran 11 ;# make new random points
grp 70 70 ;# make new grid
mak p ;# transform grid to polydata
acm l ;# map display
con l ;# contour using same levels
mak sca ;# be sure the scalars are there
mhi grid2 ;# move grid to hi grid2
vie 3 con ;# select viewport 3 and connect
mlo grid1 ;# move grid1 to active
mak rsc grid2 ;# replace scalars from grid2
acm l ;# map grid2 on top of grid1
con l ;# contour grid2 on top of grid1
vie 4 con ;# select viewport 4 and connect
mlo grid2 ;# move grid2 to active
mak rsc grid1 ;# replace scalars from grid1
acm l ;# map grid1 on top of grid2
con l ;# contour grid1 on top of grid2
xwi sel ;# force selected window in front
Displaying scalars from two grids on top of the other grid surface
See also
acm - Color band mapping, cco - Color code legend, cnn - Contour two sides, map - Map display, sma - Spline map