Kristen N Posted October 23, 2017 Share Posted October 23, 2017 I have drawn some arcs to create a long ribbon-shaped line and every time I re-open the drawing the curbes of those arcs are changed to straight lines with corners. How do I get the curves back? Quote Link to comment Share on other sites More sharing options...
rkent Posted October 23, 2017 Share Posted October 23, 2017 Arcs appear as straight lines, circles appear as polygons Common causes: 1. VIEWRES is set too low (WHIPARC has to be off) , set it to 5000. 2. SHADEMODE has been set to other than 2D 3. WHIPARC is set to 0. (Viewres will have no effect when whiparc is set to 1) Quote Link to comment Share on other sites More sharing options...
BIGAL Posted October 24, 2017 Share Posted October 24, 2017 The theory behind the straights, in an attempt to speed up graphics lots of software uses a simple trick of showing curves as multiple straights. You will often find in Autocad an arc will not touch a line but an intersection will reveal true point. Like rkent you can control the straights the bigger the number the trade off is graphics speed. I am sure like lots here we just live with it and do RE when an improved image is required. Quote Link to comment Share on other sites More sharing options...
eldon Posted October 24, 2017 Share Posted October 24, 2017 ............How do I get the curves back? The quick answer is use the command REGEN first. Quote Link to comment Share on other sites More sharing options...
Kristen N Posted October 24, 2017 Author Share Posted October 24, 2017 Thank you rkent! Very helpful. Arcs appear as straight lines, circles appear as polygonsCommon causes: 1. VIEWRES is set too low (WHIPARC has to be off) , set it to 5000. 2. SHADEMODE has been set to other than 2D 3. WHIPARC is set to 0. (Viewres will have no effect when whiparc is set to 1) Quote Link to comment Share on other sites More sharing options...
Kristen N Posted October 24, 2017 Author Share Posted October 24, 2017 Thanks eldon, that worked! Quote Link to comment Share on other sites More sharing options...
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