**CIGAL Reference Manual, Chapter 2 (Commands): ZSCAN**
===== ZSCAN -- Convert 2-D data to 3-D data using data value as Z position =====
**        usage: zscan source [ drawflag colorflag storeflag imin width ]**

ZSCAN takes a 2-dimensional input (SOURCE) and scans across it, creating a 3-dimensional
graphics image. The z coordinate of each vector in the graphics image is the value of
the corresponding position in the matrix.

DRAWFLAG determines what type of vectors to draw:
        0     make each vector a point
        1     draw a line connecting adjacent vectors along the x-axis
        2     make each point a vertical line drawn from Z=0 to the new Z value

If COLORFLAG is negative then store the matrix value as the intensity, otherwise use COLORFLAG as
the intensity for all vectors (default = -1).

If STOREFLAG is 0 then just draw the vectors, don't store them.  The default
is to store all vectors.  This can be a lot of data for a large image matrix.

Matrix values %%<=%% IMIN are not stored; IMIN defaults to 0.

WIDTH is the line width of the vectors that will be drawn (default = 1).

**See Also:**\\
[[jvs:cigal|CIGAL Home]], 
[[jvs:cigal:manual|CIGAL Manual]], 
[[jvs:cigal:manual:chapter2|Commands List]], 
[[jvs:cigal:manual:help|Manual Help]]