Sigma LBA-708 사용자 설명서

See section 2.3.1.1  RCC?, RCR? - Read Cursor Transfer for additional information. 

 

Most parameters that specify spatial coordinates must be in LBA-PC world coordinates.  World 

coordinates are used for locations in the current frame as displayed in the beam window with no 
magnification.  World coordinates are displayed for computed centroid location and peak location 

results, aperture location, cursor and crosshair location, and pass/fail locations.  World coordinates are 

dependent on the frame size, capture resolution, origin location, and pixel scale.  These dependency 

values may change from frame to frame. 
World coordinates are based upon the Origin Location, which defines x=0, y=0.  If the origin is set to 

Detector lower left, Window lower left, or manual then y values increase going up and decrease going 
down as viewed in the beam window.  If the origin is set to Detector upper left or Window upper left 

then y values increase going down and decreases going up.  If manual origin is enabled then negative 

x values are to the left and positive to the right, and y negative values are down and positive up.  See 

the LBA-PC online help for more information about using Origin Locations. 

World coordinates are used to set the aperture center location (:APT), the manual cross-hair location 

(:CHR), and the manual cursor location (:CUR). 
Use the WLD? command to retrieve the location of upper left and lower right corner of the current 

frame in world coordinates. 
The following example describes how to retrieve the boundaries of the current frame then set the 

cursor to the center of the frame. 

 
Host sends 
 

:WLD? 

 
LBA-PC sends 

 

 

 

WLD 

 UpperLeft=0.000e+00,0.000e+00; 
 LowerRight=6.630e+03,6.214e+03

 

 
Host sends 
 

:CUR 

 X=3.315e+03; 
 Y=3.107e+03(^END

 

Operator’s Manual 

 

LBA-PC 

 

Doc. No. 10654-001, Rev 4.10 

205