Which transformer would you use to dissolve boundaries between polygon features into larger polygons?

Which transformer would you use to dissolve boundaries between polygon features into larger polygons?

• A. Bufferer
• B. Clipper
• C. Aggregator
• D. Dissolver

Answer: (D)

Dissolving boundaries between polygons to form larger polygons is exactly what the dissolver does. It merges adjacent polygons, removing their shared edge so you end up with bigger polygonal areas. You can control how this merging happens by dissolving on an attribute value; polygons that share the same attribute get merged into one larger feature. If you dissolve by an attribute common to all features, you’d end up with a single large polygon; if you dissolve by multiple attribute groups, you create several larger polygons corresponding to each group. The other options don’t fit: a bufferer adds a distance around features, increasing their size but not merging interior boundaries. a clipper cuts polygons with another shape, producing pieces rather than dissolving internal boundaries. an aggregator groups and summarizes features, but it doesn’t remove internal polygon boundaries to form larger polygons.

Dissolving boundaries between polygons to form larger polygons is exactly what the dissolver does. It merges adjacent polygons, removing their shared edge so you end up with bigger polygonal areas. You can control how this merging happens by dissolving on an attribute value; polygons that share the same attribute get merged into one larger feature. If you dissolve by an attribute common to all features, you’d end up with a single large polygon; if you dissolve by multiple attribute groups, you create several larger polygons corresponding to each group.

The other options don’t fit: a bufferer adds a distance around features, increasing their size but not merging interior boundaries. a clipper cuts polygons with another shape, producing pieces rather than dissolving internal boundaries. an aggregator groups and summarizes features, but it doesn’t remove internal polygon boundaries to form larger polygons.