Fills whose boundaries overlap cam cause a problem in the way they rest against one another. The challenge is for there to be a clean change from one color to the next. In many cases the seam between two fills will be covered by a satin column that cleans up the edge, much the same way as described in the borders section above. Other times there won’t be anything sewn above the adjoining fills and their edges will have to be constructed as cleanly as can be.
To simulate how fill objects interact with one another, hold your hands out in front of you flat on a table and spread your fingers. Now slide your hands together so that your fingers interlock with one another. Notice how your two hands remain on the same plane, that of the table and all fingers are completely visible. Now take one hand and rest it on top of the other so the top fingers are perpendicular to the bottom fingers. The fingers are no longer on the same plane and the bottom fingers are blocked from view by the top fingers. These relationships are important to understand, because they illustrate well, how two fills should be constructed depending on what digitizing effect you’re trying to achieve. Let’s take a closer look.
When the stitch direction of the two fills are in the same direction, the ends of the stitches, like the fingers here, extend into one another. The change in color between the two fills will appear a little jagged, but because both fills rest on the same plane, the transition from one fill to the other will be very smooth. This method is best suited when a satin stitch object will be sewn over the seam where the two fills meet, because the jagged color change will be covered by the satin object and the satin will rest nicely on a single plane, than if there was a ridge to contend with.
When the stitch direction of the two fills are perpendicular to one another, the top fill will block out the bottom fill and a fairly crisp change in color will result. The disadvantage to this method is that the top fill will ride
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