<div dir="auto"><div class="gmail_quote" dir="auto"><div dir="ltr" class="gmail_attr"><br></div><div dir="ltr"><div>Hello.<br></div><div>I have to downgrade my application from gdal 3.1.2 to 2.1.2 built on libGeos 3.5.1. For some reason.<br></div><div>So I have to work around the absence of some methods introduced only in later releases.<br></div><div>The first thing i met was MakeValid and IsValid. In my application it is used for Polygons. <br></div><div>There is two aspects:<br></div><div>1. What does exactly "valid geometry" mean? What does IsValid check? <br></div><div> As it is written in docs: Returns true if geometry has no points". I'm not sure, that I understand it correctly.<br></div><div>2. Is there a proper way to replace MakeValid with something in order to keep my app functional?<br><br></div><div>Thanks<br></div></div>
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