https://forums.autodesk.com/t5/net-forum/transform-region/m-p/12644243#M4997 <P>I need regions from an xreference.</P><P>How can I transform them to the WCS?</P><P>region.TransformBy(XrefTransformMatrix) doesn't give a value.</P><P>&nbsp;</P><P>edit: I'm guessing I need to change it to a polyline, transform the polyline, then convert it back to a region.</P><P>I need to deterimine if the region contains a point using brep</P><P>&nbsp;</P> Fri, 15 Mar 2024 23:04:25 GMT SRSDS 2024-03-15T23:04:25Z https://forums.autodesk.com/t5/net-forum/transform-region/m-p/12644243#M4997 <P>I need regions from an xreference.</P><P>How can I transform them to the WCS?</P><P>region.TransformBy(XrefTransformMatrix) doesn't give a value.</P><P>&nbsp;</P><P>edit: I'm guessing I need to change it to a polyline, transform the polyline, then convert it back to a region.</P><P>I need to deterimine if the region contains a point using brep</P><P>&nbsp;</P> Fri, 15 Mar 2024 23:04:25 GMT https://forums.autodesk.com/t5/net-forum/transform-region/m-p/12644243#M4997 SRSDS 2024-03-15T23:04:25Z https://forums.autodesk.com/t5/net-forum/transform-region/m-p/12644579#M4998 <P>Hi,</P> <P>&nbsp;</P> <P>Wouldn't it be simpler to transform the point with the inverse transformation matrix?</P> Sat, 16 Mar 2024 06:14:58 GMT https://forums.autodesk.com/t5/net-forum/transform-region/m-p/12644579#M4998 _gile 2024-03-16T06:14:58Z https://forums.autodesk.com/t5/net-forum/transform-region/m-p/12644704#M4999 <P>Thank you. Yep. <span class="lia-unicode-emoji" title=":slightly_smiling_face:">🙂</span></P> Sat, 16 Mar 2024 09:20:25 GMT https://forums.autodesk.com/t5/net-forum/transform-region/m-p/12644704#M4999 SRSDS 2024-03-16T09:20:25Z