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Convert figure images to markdown

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James Gregory 2013-12-31 07:56:10 +11:00
commit 77a95ec319
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@ -95,8 +95,7 @@ randomly; the X coordinate of an edge at one scan line is a consistent
delta from that edge's X coordinate at the last scan line, and that is
consistent for the length of the line.
![](images/40-01.jpg)\
**Figure 40.1**  *Filling one scan line by finding intersecting edges.*
![**Figure 40.1**  *Filling one scan line by finding intersecting edges.*](images/40-01.jpg)
This allows us to reduce the number of edges that must be checked for
intersection; on any given scan line, we only need to check for
@ -109,8 +108,7 @@ running list of currently active edges—called the *active edge table*
intersection with the current scan line. Then, we can simply fill each
scan line in turn according to the list of active edges at that line.
![](images/40-02.jpg)\
**Figure 40.2**  *Checking currently active edges (solid lines).*
![**Figure 40.2**  *Checking currently active edges (solid lines).*](images/40-02.jpg)
Maintaining the AET from one scan line to the next involves three steps:
First, we must add to the AET any edges that start on the current scan