Name

eli — Eliminate points

Syntax

eli [sca | xsca | zsca [keep | und] ] lt | gt | bet | out | ins | iwi | owi | izo | ozo | ocu | owd | rsc | clip | num | cel | bse | und | dfd

Description

Eliminate and / or replace point or scalar values in polydata or grid.
For grids: the grid extension will be the same. The eliminated part will be undetermined. To reduce the extension of a grid use gse.

Arguments

sca

Elimination is performed on the scalars and replaced on z values.

xsca

Elimination is tested on scalars and replaced on the scalars.

zsca

Elimination is tested on z values and replaced on the scalar.

keep

Scalar removal does not mean z removal.

und

Eliminate points of undefined values in scalars.

cel

Use cell scalars for elimination test.

gt value [rvalue]

Eliminate dataset values greater than value [replace by rvalue]. Similar for lt.

gt value [rvalue rsc]

Eliminate dataset values greater than value [replace by rvalue into the scalar]. Similar for lt.

bet value1 value2 [rvalue]

Eliminate dataset values between value1 and value2 [replace by rvalue]

bse

Eliminate points in cells between start and end.

ins hi workspacename [rvalue]

Eliminate points inside the area of grid in workspace workspacename [and replace by rvalue].

out value1 value2 [rvalue]

Eliminate dataset values outside value1 and value2 [replace by rvalue]

out hi

Outside, as for ins hi.

iwi

Eliminate data inside the window. The window is displayed by the frame icon.

owi

Eliminate data outside the window. The window is displayed by the frame icon.

izo

Eliminate data inside the zoom window. The zoom window is the visual screen window when operating in 2D mode.

ozo

Eliminate data outside the zoom window. The screen must be in 2D mode. See eli izo.

ocu distance

Eliminate data outside the cursor point plus a distance distance.

owd [distance] [name]

Eliminate data outside dataset plus distance in workspace named workdata or name.

rsc

Replace with scalars in the replace operation.

clip

Clip polydata exact towards the elimination boundary.

num

Eliminate and replace until a number.

nan

Eliminate all points that are not_a_number.

und

Interpolate undefined values in a grid.

dfd

Drop field data when eliminating points.

Examples

Ex.1: Eliminate by scalars on combined polydata grid

win demo          ;# Get demo window (450000 460000 6450000 6460000 1000 4000)
spe bgc whi       ;# Specify background color to white
mak ran 11        ;# Make 11 random points
grp 222 222       ;# Make grid of dimension 222 x 222
mak p             ;# Make polydata
mhi mygrid        ;# Move to mygrid
mak ran 11        ;# Make 11 random points
grp 222 222       ;# Make grid of dimension 222 x 222
mak p             ;# Make polydata
mak rsc mygrid    ;# Replace scalars from mygrid to active
eli sca gt 2500   ;# Eliminate z values when scalars are greater than 2500
map               ;# Map the result polydata grid

The above example produces this image.

Eliminate by scalars

See also

elc - Eliminate and clip, lgo - Logical operation for grids, rep - Replace, und - Undefined change

Browser not supported