https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952202#M56928 How can I find out whether a point belongs to a line or not. Say, if I want to find out whether a point lies on a line, I compare the length of the line and the sum of the distances between the point and the start and end points of the line. Can't think of any way to find that out for an arc. Thu, 12 Feb 2004 00:54:20 GMT Anonymous 2004-02-12T00:54:20Z https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952202#M56928 How can I find out whether a point belongs to a line or not. Say, if I want to find out whether a point lies on a line, I compare the length of the line and the sum of the distances between the point and the start and end points of the line. Can't think of any way to find that out for an arc. Thu, 12 Feb 2004 00:54:20 GMT https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952202#M56928 Anonymous 2004-02-12T00:54:20Z https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952203#M56929 Sorry, I want to know whether a point belongs to an ARC or not Thu, 12 Feb 2004 00:55:20 GMT https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952203#M56929 Anonymous 2004-02-12T00:55:20Z https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952204#M56930 if distance from point to radius point = radius AND startangle &lt; pointangle &lt; endangle (for counterclockwise arcs) then point lies on arc. test for CC or CCW arcs will be required. HTH, Jeff "mgrigoriev" <NOSPAM> wrote in message news:29349322.1076547291063.JavaMail.jive@jiveforum1.autodesk.com... &gt; How can I find out whether a point belongs to a line or not. Say, if I want to find out whether a point lies on a line, I compare the length of the line and the sum of the distances between the point and the start and end points of the line. Can't think of any way to find that out for an arc.</NOSPAM> Thu, 12 Feb 2004 01:11:25 GMT https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952204#M56930 Anonymous 2004-02-12T01:11:25Z https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952205#M56931 Thank you. These two conditions sound right. I just hope they are enough. I'll test it with different arcs. Mon, 16 Feb 2004 16:56:27 GMT https://forums.autodesk.com/t5/vba-forum/point-belongs-to-an-arc/m-p/952205#M56931 Anonymous 2004-02-16T16:56:27Z