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<div align="left">Hallo</div>
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<div align="left">I think the easiest way is to make a linestring of the polygon.boundary and then cut the line in the start and end so you get two more or less paralell lines. Then you can use st_distance to find the shortest distance between them.</div>
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<div align="left">Hope that helps</div>
<div align="left">Nicklas<br />
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2009-10-01 Surya Tarigan wrote:<br />
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<div>Dear list, </div>
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<div>I have a river polygon with polygon length about 20 km. How can I query the minimum width of the river polygon. I tried to search previous threads, but I could not find any clue.</div>
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<div>kind regards,</div>
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<div>surya</div><br />
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