https://community.graphisoft.com/t5/Archicad-C-API/Geometry-Circle-2Pt1Lin-parameter/m-p/193906#M6342 Ralph, thank you for help! Fri, 21 Oct 2011 22:18:00 GMT Anonymous 2011-10-21T22:18:00Z https://community.graphisoft.com/t5/Archicad-C-API/Geometry-Circle-2Pt1Lin-parameter/m-p/193904#M6340 <DIV class="actalk-migrated-content">Hi everyone!<BR />Please help - what means "palne-part" and parameter "const Coord&amp; refCo" in description of functions Geometry::Circle_2Pt1Lin, Geometry::Circle_1Pt2Lin and Geometry::Circle_3Lin?</DIV> Wed, 02 Aug 2023 19:07:36 GMT https://community.graphisoft.com/t5/Archicad-C-API/Geometry-Circle-2Pt1Lin-parameter/m-p/193904#M6340 Anonymous 2023-08-02T19:07:36Z https://community.graphisoft.com/t5/Archicad-C-API/Geometry-Circle-2Pt1Lin-parameter/m-p/193905#M6341 <BLOCKQUOTE>Chartlant wrote:<BR />Hi everyone!<BR /> Please help - what means "palne-part" and parameter "const Coord&amp; refCo" in description of functions Geometry::Circle_2Pt1Lin, Geometry::Circle_1Pt2Lin and Geometry::Circle_3Lin?</BLOCKQUOTE> The parameters supplied to these functions might have more than one possible solution - the reference point establishes which of these is correct. If you aren't sure what this means, experiment with the equivalent methods using the ArchiCAD drawing tools. If you the points you place are ambiguous, i.e. there is more than one solution, you will be prompted to click on a reference point to establish the correct circle. Thu, 20 Oct 2011 07:56:14 GMT https://community.graphisoft.com/t5/Archicad-C-API/Geometry-Circle-2Pt1Lin-parameter/m-p/193905#M6341 Ralph Wessel 2011-10-20T07:56:14Z https://community.graphisoft.com/t5/Archicad-C-API/Geometry-Circle-2Pt1Lin-parameter/m-p/193906#M6342 Ralph, thank you for help! Fri, 21 Oct 2011 22:18:00 GMT https://community.graphisoft.com/t5/Archicad-C-API/Geometry-Circle-2Pt1Lin-parameter/m-p/193906#M6342 Anonymous 2011-10-21T22:18:00Z