![Hitachi HD64411 Q2 Скачать руководство пользователя страница 226](http://html.mh-extra.com/html/hitachi/hd64411-q2/hd64411-q2_user-manual_147268226.webp)
219
(a)
(b)
Figure C-2 Comparison of (a) 8-Point Drawing and (b) 4-Point Drawing
Next, 8-point drawing straight line approximation is described, using figure C-3 (a). After pixel
A is drawn, either pixel B or pixel C is selected; the basis for selection is proximity to an
actual straight line. The same approach is also used in 4-point drawing (figure C-3 (b)).
A comparison between 8-point drawing and 4-point drawing shows that closer approximation
to a straight line can be achieved with 8-point drawing. However, the algorithm is
correspondingly complex, requiring longer processing time.
(a)
A
B
C
(b)
A
B
C
Actual straight line
Figure C-3 Drawing Dot Determination Process in (a) 8-Point Drawing and
(b) 4-Point Drawing
Содержание HD64411 Q2
Страница 17: ...10 ...
Страница 31: ...24 ...
Страница 108: ...101 Example 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 110: ...103 Example Old XC YC Old XC XC old YC YC 0 0 Work coordinates Rendering coordinates XC YC ...
Страница 112: ...105 Example 0 0 Work coordinates Rendering coordinates XO1 YO1 XO1 DX2 YO1 DY2 XO1 DX1 YO1 DY1 LINE ...
Страница 116: ...109 Example 0 0 Work coordinates Rendering coordinates XMIN YMIN XMAX YMAX ...
Страница 118: ...111 Example 0 0 Work coordinates Rendering coordinates XMAX YMAX ...
Страница 120: ...113 Example 0 0 Work coordinates XMIN YMIN XMAX YMAX ...
Страница 129: ...122 ...
Страница 167: ...160 ...
Страница 179: ...172 ...
Страница 213: ...206 Figure 7 20 TV Sync Mode Display Timing When DOT 0 or DOT 1 and EXHSYNC cycle is even multiple of CLK1 cycle ...