basty Posted February 2, 2016 Share Posted February 2, 2016 Drawing an ellipse inside a rectangle like this is easy, piece of cake: However, how do you draw an ellipse inside a rectangle like this (acad file is attached)? How do you find the center point of the ellipse inside this rectangle, please tell me step-by-step and draw the construction line. Ellipse.dwg Quote Link to comment Share on other sites More sharing options...
SLW210 Posted February 2, 2016 Share Posted February 2, 2016 I can't view your images at work. What is in your drawing is a non rectangular parallelogram, a rectangle has 4 right angles (90°). You will need to manually construct an ellipse in that one I believe. http://draftingmanuals.tpub.com/14276/css/14276_119.htm Quote Link to comment Share on other sites More sharing options...
basty Posted February 2, 2016 Author Share Posted February 2, 2016 I can't view your images at work. What is in your drawing is a non rectangular parallelogram, a rectangle has 4 right angles (90°). You will need to manually construct an ellipse in that one I believe. http://draftingmanuals.tpub.com/14276/css/14276_119.htm Could you please tell me step-by-step using autocad? A Video perhaps? Quote Link to comment Share on other sites More sharing options...
ReMark Posted February 2, 2016 Share Posted February 2, 2016 Are you drawing something is perspective? What is this for exactly? How was the object that you drew constructed? Quote Link to comment Share on other sites More sharing options...
SEANT Posted February 2, 2016 Share Posted February 2, 2016 I used this app: https://apps.autodesk.com/ACD/en/Detail/Index?id=appstore.exchange.autodesk.com%3astsc_projective2d_2013%3aen to do the attached. EllipseOrthoToPersp.dwg Quote Link to comment Share on other sites More sharing options...
Stefan BMR Posted February 2, 2016 Share Posted February 2, 2016 Drawing an ellipse inside a rectangle like this is easy, piece of cake: However, how do you draw an ellipse inside a rectangle like this (acad file is attached)? How do you find the center point of the ellipse inside this rectangle, please tell me step-by-step and draw the construction line. There is no single solution. The center point is anywhere on the line between diagonal's midpoints. The intersection between the 2 lines connecting opposite tangent points is constant and equal to diagonal's intersection. In the attached dwg, select the ellipse and drag from it's centerpoint. ellipse.dwg Quote Link to comment Share on other sites More sharing options...
SEANT Posted February 2, 2016 Share Posted February 2, 2016 There is no single solution.The center point is anywhere on the line between diagonal's midpoints. The intersection between the 2 lines connecting opposite tangent points is constant and equal to diagonal's intersection. In the attached dwg, select the ellipse and drag from it's centerpoint. [ATTACH]56863[/ATTACH] Cool Demo. Quote Link to comment Share on other sites More sharing options...
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