https://community.graphisoft.com/t5/Modeling/Re-Trigonometric-Circle-in-ArchiCAD/m-p/401707#M168984 <P>Snap Guides will reset the relative value to 0 along the last element snapped to.</P> <P>It looks like in the example you have snap guides turned on and you snapped to your 45degree line, making the relative measurements from the snap guide line.</P> <P>I do not use snap guide for this reason.</P> <P>I think that the parallel line symbols is lost in the background image and also because the parallel lines are drawn at 45 degrees,</P> <P>but you can see the light blue circle in the middle and the arc segments.</P> <P>&nbsp;</P> <P>snap guides on - measure from snap guide</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_2-1696900543244.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47109iF3015D1E8ADC2014/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_2-1696900543244.png" alt="AllanP_2-1696900543244.png" /></span></P> <P>snap guides off - measure from horizontal</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_0-1696903417023.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47110iEC80CC9EE681E601/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_0-1696903417023.png" alt="AllanP_0-1696903417023.png" /></span></P> <P>&nbsp;</P> <P>Archicad will keep going until it gets to 180 with polar coordinates.</P> <P>&nbsp;</P> <P>unless your are using the local/relative grid system, then those are measured from the local grid.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_1-1696903564373.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47111iC5E0F01A885392AC/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_1-1696903564373.png" alt="AllanP_1-1696903564373.png" /></span></P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_2-1696903631662.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47112i7B1E7741BC789878/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_2-1696903631662.png" alt="AllanP_2-1696903631662.png" /></span></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_3-1696903834867.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47113i7A4461A51A73E2A9/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_3-1696903834867.png" alt="AllanP_3-1696903834867.png" /></span></P> <P>&nbsp;</P> <P>&nbsp;</P> Tue, 10 Oct 2023 02:11:07 GMT AllanP 2023-10-10T02:11:07Z https://community.graphisoft.com/t5/Modeling/Re-Trigonometric-Circle-in-ArchiCAD/m-p/401656#M168983 <P>I don't remember having had all of these issues in ArchiCAD 10.&nbsp;</P> Mon, 09 Oct 2023 22:54:14 GMT https://community.graphisoft.com/t5/Modeling/Re-Trigonometric-Circle-in-ArchiCAD/m-p/401656#M168983 Martin Jules 2023-10-09T22:54:14Z https://community.graphisoft.com/t5/Modeling/Re-Trigonometric-Circle-in-ArchiCAD/m-p/401707#M168984 <P>Snap Guides will reset the relative value to 0 along the last element snapped to.</P> <P>It looks like in the example you have snap guides turned on and you snapped to your 45degree line, making the relative measurements from the snap guide line.</P> <P>I do not use snap guide for this reason.</P> <P>I think that the parallel line symbols is lost in the background image and also because the parallel lines are drawn at 45 degrees,</P> <P>but you can see the light blue circle in the middle and the arc segments.</P> <P>&nbsp;</P> <P>snap guides on - measure from snap guide</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_2-1696900543244.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47109iF3015D1E8ADC2014/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_2-1696900543244.png" alt="AllanP_2-1696900543244.png" /></span></P> <P>snap guides off - measure from horizontal</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_0-1696903417023.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47110iEC80CC9EE681E601/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_0-1696903417023.png" alt="AllanP_0-1696903417023.png" /></span></P> <P>&nbsp;</P> <P>Archicad will keep going until it gets to 180 with polar coordinates.</P> <P>&nbsp;</P> <P>unless your are using the local/relative grid system, then those are measured from the local grid.</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_1-1696903564373.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47111iC5E0F01A885392AC/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_1-1696903564373.png" alt="AllanP_1-1696903564373.png" /></span></P> <P>&nbsp;</P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_2-1696903631662.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47112i7B1E7741BC789878/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_2-1696903631662.png" alt="AllanP_2-1696903631662.png" /></span></P> <P><span class="lia-inline-image-display-wrapper lia-image-align-inline" image-alt="AllanP_3-1696903834867.png" style="width: 400px;"><img src="https://community.graphisoft.com/t5/image/serverpage/image-id/47113i7A4461A51A73E2A9/image-size/medium?v=v2&amp;px=400" role="button" title="AllanP_3-1696903834867.png" alt="AllanP_3-1696903834867.png" /></span></P> <P>&nbsp;</P> <P>&nbsp;</P> Tue, 10 Oct 2023 02:11:07 GMT https://community.graphisoft.com/t5/Modeling/Re-Trigonometric-Circle-in-ArchiCAD/m-p/401707#M168984 AllanP 2023-10-10T02:11:07Z