#!F-adobe-helvetica-medium-r-normal--18*
#!N 
#!CSeaGreen #!N  #!Rtplot 
Modules: Using Plot #!N #!EC #!N #!N  #!F-adobe-times-bold-r-normal--18*   Plot #!EF creates 
a 2-dimensional plot from x,y data. (Data Explorer expects the "positions" 
component to contain the x-values, and the  #!F-adobe-times-bold-r-normal--18*   data #!EF component 
the y-values. You can pass (import) a group of such fields 
to  #!F-adobe-times-bold-r-normal--18*   Plot #!EF , which plots them as multiple lines. 
You can also add data-point markers to the lines. #!N #!I0 
#!N  #!F-adobe-times-medium-r-normal--18*   #!N #!N #!I30 #!N 1. Open and execute visual 
program .../Plot.net. Two Image windows appear: one a color map of 
elevation data for the southeastern United States; the other, a plot 
of the elevations along the purple line shown in the color 
map. (The  #!F-adobe-times-bold-r-normal--18*   Slab #!EF module extracts the elevation data along 
the line, but  #!F-adobe-times-bold-r-normal--18*   Construct #!EF could have been used to 
create the line and  #!F-adobe-times-bold-r-normal--18*   Map #!EF to map the elevation 
data onto the line. Note that  #!F-adobe-times-bold-r-normal--18*   Compute #!EF is used 
to extract only the x-component of the positions.) #!N #!I30 #!N 
2. To animate the line: #!N #!I0 #!N  #!F-adobe-times-medium-r-normal--18*   #!N #!N 
#!I30 #!N a. Select  #!F-adobe-times-bold-r-normal--18*   Special #!EF and  #!F-adobe-times-bold-r-normal--18*   Sequencer #!EF 
in the palettes. #!N #!I30 #!N b. Position the  #!F-adobe-times-bold-r-normal--18*   Sequencer 
#!EF icon above  #!F-adobe-times-bold-r-normal--18*   Slab #!EF . #!N #!I30 #!N c. 
Double click on the icon to open the  #!F-adobe-times-bold-r-normal--18*   Sequence Control 
#!EF panel and then single-click on the ellipsis button (  #!F-adobe-times-bold-r-normal--18*   
... #!EF ) to open the  #!F-adobe-times-bold-r-normal--18*   Frame Control #!EF dialog 
box. #!N #!I30 #!N d. Set  #!F-adobe-times-bold-r-normal--18*   Min #!EF to "0" 
and  #!F-adobe-times-bold-r-normal--18*   Increment #!EF to "5." #!N #!I30 #!N e. Click 
on the ellipsis button again to close the  #!F-adobe-times-bold-r-normal--18*   Frame Control 
#!EF dialog box. #!N #!I30 #!N f. Double click on  #!F-adobe-times-bold-r-normal--18*   
Slab #!EF to open its configuration dialog box. #!N #!I30 #!N 
g. Click on the  #!F-adobe-times-bold-r-normal--18*   position #!EF toggle button to deactivate 
it (the associated parameter field will read "(all)") and then on 
 #!F-adobe-times-bold-r-normal--18*   OK #!EF . #!N #!I30 #!N h. Connect the  #!F-adobe-times-bold-r-normal--18*   
Sequencer #!EF output tab to the third input tab of  #!F-adobe-times-bold-r-normal--18*   
Slab #!EF ("position"). #!N #!I30 #!N i. Click on the Forward 
button (>) in the  #!F-adobe-times-bold-r-normal--18*   Sequence Control #!EF panel. #!N #!I0 
#!N #!EF #!N #!N #!I30 #!N 3. The limits of the 
plot change somewhat from frame to frame because they are based 
on the line given for each frame. To make the limits 
constant: #!N #!I0 #!N  #!F-adobe-times-medium-r-normal--18*   #!N #!N #!I30 #!N a. Double 
click on the  #!F-adobe-times-bold-r-normal--18*   Plot #!EF icon to open its configuration 
dialog box. #!N #!I30 #!N b. Set the  #!F-adobe-times-bold-r-normal--18*   corners #!EF 
toggle button on and change the values in the parameter field 
to {[260, -6000][290, 2000]}. #!N #!I30 #!N c. Click on  #!F-adobe-times-bold-r-normal--18*   
Expand #!EF (to show the hidden parameters) and then on the 
 #!F-adobe-times-bold-r-normal--18*   font #!EF toggle button (to change the font to "roman_tser"). 
#!N #!I30 #!N d. Click on  #!F-adobe-times-bold-r-normal--18*   OK #!EF at the 
bottom of the dialog box. #!N #!I30 #!N e. Click on 
the Forward button in the  #!F-adobe-times-bold-r-normal--18*   Sequence Control #!EF panel. #!N 
#!I0 #!N #!EF #!N #!N #!I30 #!N 4. To place data-point 
markers on the data plot: #!N #!I0 #!N  #!F-adobe-times-medium-r-normal--18*   #!N #!N 
#!I30 #!N a. Disconnect  #!F-adobe-times-bold-r-normal--18*   Plot #!EF from  #!F-adobe-times-bold-r-normal--18*   Unmark #!EF 
. #!N #!I30 #!N b. Connect the  #!F-adobe-times-bold-r-normal--18*   Options #!EF output 
tab to the first ("input") tab of  #!F-adobe-times-bold-r-normal--18*   Plot #!EF . 
#!N #!I30 #!N c. Reexecute the visual program. The markers appear 
as small open circles. #!N #!I30 #!N d. To see what 
options were specified, double click on the  #!F-adobe-times-bold-r-normal--18*   Options #!EF icon 
to open its configuration dialog box. In this example, the "mark" 
attribute is set to "circle" and the "mark every" attribute is 
set to "10." Thus every tenth data point is marked with 
a circle. #!N #!I0 #!N #!EF #!N #!N #!I0 #!N #!EF 
#!N #!N #!N See Plot in IBM Visualization Data Explorer User's 
Reference. #!N #!N #!N  #!F-adobe-times-medium-i-normal--18*   Next Topic #!EF #!N #!N  #!Ltimproc,dxall84 h Processing Images  #!EL  
#!N  #!F-adobe-times-medium-i-normal--18*   #!N 
