My map has irregular line intersection symbols such as circles, squares or bubbles, they are vectorized as the way they appear, how do I simplify them to single node intersections using R2V?

R2V has a set of functions to deal with the irregular line intersection problem. Here are the steps suggested: Step 1. Vectorize your image using the Vector/Auto Vectorize function.

Step 2. Draw a selection rectangle around one single intersection by pressing down the left mouse button. Because the size of the rectangle is very important, make it slightly bigger than the vectorized intersection symbol.

Some experimenting with this will help. Step 3. Detect the symbols using Vector/Detect Intersection Symbols.

Blue rectangles surrounding the intersection symbols will be displayed. Other things such as small lines segments and patterns might be identified as intersection symbols but this is okay and will not cause any problem. Step 4.

Now it is time to correct or shrink the symbols. The following steps will physically change your vector data, so you may want to save the data to a file before you proceed. Because there might be misidentified symbols, you should use the Vector/Shrink ... more.

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