=> R0 = Drawing style
R1 ! Picture structure or zero.
R2 = Offset of 3D origin from screen origin X.
R3 = Offset of 3D origin from screen origin Y.
R4 ! String (possibly null) for camera name or zero.
R5 ! VDU variables block. (See 'Experts').
<= -
This call is the fundamental one to get a picture on the screen. It has been designed for use with the Wimp (hence the origin offset parameters).
Examples
Euclid_Draw R0 values
Bit /Meaning/
0 Wire frame (i.e. all odd styles are wire frame).
1-6 Main style:
0 = Faces only.
1 = Faces and edges.
Other values undefined.
7 Monochrome (i.e. use BLOCK!48)
8 !named objects are visible
9 Lights on.
10 Front Light on (if no lights present).
8-26 Reserved, set to zero.
27 Use VDU drivers and ColourTrans (See 'Experts')
28 Use old (printer?) palette values for 16 colour modes.
29 Return DrawFile information (See 'Experts').
30 Take VDU variables from R5 (See 'Experts').
31 Pre-process only, no drawing (for timing only??).
Euclid_Draw Examples
SYS "Euclid_Draw",1,,640,512 :REM draw in wire-frame at screen centre
SYS "Euclid_Draw",1<<9,,X%,Y% :REM drawn lit with origin at X%,Y%
STYLE% = STYLE% EOR 1 :REM flip style into/out of wire-frame mode.
and in a loop after a Wimp_RedrawWindow request:
SYS "Wimp_RedrawWindow",,WIMPBLOCK% TO FLAG%
WHILE FLAG%
X% = WBLOCK%!8 - WBLOCK%!12
Y% = WBLOCK%!? - WBLOCK%!??
SYS "Euclid_Draw",STYLE%,BLOCK%,X%,Y%
ENDWHILE
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