Parametric Window Brick Arch

[alxscott]

Hi,

I have a Victorian House and have always been interested in modelling the specific architectural features, and came across a YouTube Video for Revit ( https://www.youtube.com/watch?v=JED3hDfqBgI ) which I've been trying to translate the approach into FreeCAD ( File attached below).

I have used references to adjust the Radius of the Polar Array, but I need to be able to make the Polar Array Origin dynamic also.

I had the idea to use the Expression Engine and "Placement" value, but I can't seem to reference the Sketch geometry? I know this is typically not wanted / needed but I can get as far as using the Python console to list the internal Sketch Geometry ( and LCS Coordinates ( I believe!))

Code: Select all

App.ActiveDocument.Sketch.Geometry
[<Line segment (-500,0,0) (-500,2000,0) >, <Line segment (0,0,0) (0,2531.58,0) >, <Line segment (500,0,0) (500,2000,0) >, <Line segment (-850.616,2300,0) (835.926,2300,0) >, <Line segment (-811.788,2000,0) (800.535,2000,0) >, <Point (-500,2000,0) >, ArcOfCircle (Radius : 566.667, Position : (2.87e-14, 1733.33, 0), Direction : (0, 0, 1), Parameter : (0.489958, 2.65163)), <Line segment (-500,2000,0) (5.68434e-14,1733.33,0) >, <Line segment (2.87e-14,1733.33,0) (500,2000,0) >, <Point (2.87e-14,1733.33,0) >]

..but I can't get the placement info for the Point to then be able to reference in the Polar Array.

Any help / advice / different approach would be appreciated!

Thanks

[Roy_043]

It may be easier to create a Draft_PathLinkArray along an arc.

[alxscott]

It may be easier to create a Draft_PathLinkArray along an arc.

Thank you Roy! I'll have a look at that now!