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Abstract: Unmanned aerial vehicles (UAVs) have found numerous applications and are expected to bring fertile business opportunities in the next decade. Among various enabling technologies for UAVs, ...

Note that the first expected argument to xcopies() is the spacing argument, so you do not need to supply the spacing= argument name. Similarly, ycopies() makes a line of evenly spaced copies centered ...

Usually, when coloring a shape with the color() module, the parent color overrides the colors of all children. This is often not what you want: As with all of the attachable features, these color, ...