.TH r3.null 1grass "" "GRASS 8.2.1" "GRASS GIS User's Manual" .SH NAME \fI\fBr3.null\fR\fR \- Explicitly create the 3D NULL\-value bitmap file. .SH KEYWORDS raster3d, map management, null data, no\-data, voxel .SH SYNOPSIS \fBr3.null\fR .br \fBr3.null \-\-help\fR .br \fBr3.null\fR \fBmap\fR=\fIstring\fR [\fBsetnull\fR=\fIval[\-val]\fR[,\fIval[\-val]\fR,...]] [\fBnull\fR=\fIfloat\fR] [\-\-\fBhelp\fR] [\-\-\fBverbose\fR] [\-\-\fBquiet\fR] [\-\-\fBui\fR] .SS Flags: .IP "\fB\-\-help\fR" 4m .br Print usage summary .IP "\fB\-\-verbose\fR" 4m .br Verbose module output .IP "\fB\-\-quiet\fR" 4m .br Quiet module output .IP "\fB\-\-ui\fR" 4m .br Force launching GUI dialog .SS Parameters: .IP "\fBmap\fR=\fIstring\fR \fB[required]\fR" 4m .br 3D raster map for which to modify null values .IP "\fBsetnull\fR=\fIval[\-val][,\fIval[\-val]\fR,...]\fR" 4m .br List of cell values to be set to NULL .IP "\fBnull\fR=\fIfloat\fR" 4m .br The value to replace the null value by .SH DESCRIPTION Modifies the NULL values of a 3D raster map. .SH SEE ALSO \fI r.null \fR .SH AUTHORS Roman Waupotitsch, Michael Shapiro, Helena Mitasova, Bill Brown, Lubos Mitas, Jaro Hofierka .SH SOURCE CODE .PP Available at: r3.null source code (history) .PP Accessed: Sunday Jan 22 07:36:52 2023 .PP Main index | 3D raster index | Topics index | Keywords index | Graphical index | Full index .PP © 2003\-2023 GRASS Development Team, GRASS GIS 8.2.1 Reference Manual