The difference is because the command increases the number of pixels that will be handled in each pass. This means that a bigger chunk of your map is processed in each pass, and therefore requiring fewer passes overall.

Not sure exactly how the algorithm is working internally, but it seems to like keeping the start/end node of the polygon (which would be located where you started drawing the poly in the first place.)

A few ways to deal with this:

• Try taking out smaller chunks, doing it over several operations.
• Draw a completely new polygon instead, using the trace feature of the tool to trace the part of the coastline you want to keep, instead of using the edit feature.

Look for EType in CStuff in the entity record first. That tells you what kind of entity this is. You'll find the ID's in _ESTRUC.H.

My issue from the very brief look I gave that one was that I didn't seem to actually get valid entities at all, just uninitialized memory. Which may be due to a mistake on my side, or perhaps something that needs to be done that I don't know about, there is no documentation about that call.

Attaching doesn't automatically make corners for you. The only thing that modifer does is to ensure the nodes are in the exact same place, so for your road, it would ensure the start node of the new road is at the exact same point as the end node of the existing one. But line endings are perpendicular to the the direction of the line, so unless the direction of the two road pieces are 100% the same, there will be gaps, which is what you see both with your original example with the effects, and the later one in the last post.

As for symbols, you cannot really attach these to each other. A symbol only have one node, the symbol origin (or placement point). You can attach them to a line or snap them to a grid, but using attach to make them line up won't work.

Normal print size for a battle map is 1" per square. A paper in A4 is 210x297 mm or 8-1/4 x 11-3/4 inches. That allow for 8 by 11 squares assuming the printer don't need huge margins, which gives a map size of 40x55 feet.

A3 is double A4, so 16 by 11 squares, A2 should be 16 by 23 and so on.