HEIDENHAIN iTNC 530 229
7.1 Processing DXF Files (Software Option)
Individual selection
U Select the mode for choosing a machining position. 
The TNC hides the layers shown in the left window, 
and the right window becomes active for position 
selection.
U In order to select a machining position, click the 
desired element with the left mouse button. The TNC 
indicates possible locations for machining positions 
on the selected element with stars. Click one of the 
stars: The TNC loads the selected position into the 
left window (displays a point symbol). If you click a 
circle, the TNC adopts the circle center as machining 
position.
U If necessary you can also deselect elements that you 
already selected, by clicking the element in the right 
window again, but this time while pressing the CTRL 
key (click inside the marked area).
U If you want to specify the machining position at the 
intersection of two elements, click the first element 
with the right mouse button: the TNC displays stars 
at the selectable machining positions.
U Click the second element (straight line, complete 
circle or circular arc) with the left mouse button. The 
TNC loads the intersection of the elements into the 
left window (displays a point symbol).
U To save the selected machining positions in a points 
file, enter any file name in the pop-up window 
displayed by the TNC. Default setting: Name of the 
DXF file. If the name of the DXF file contains special 
characters or spaces, the TNC replaces the 
characters with underscores.
U Confirm the entry: The TNC saves the contour 
program in the directory in which the DXF file is also 
saved.
U If you want to select more machining positions in 
order to save them in a different file, press the 
CANCEL SELECTED ELEMENTS soft key and select 
as described above.