Attribute 'Intersect' of 'namespace#' object is read-only

[emilio]

Hi David, Pascal,

Here is that old script.

walden.py (4.4 KB)

It seems to work here, with the radii and angles you mentioned in the original discussion:

How to draw an arc intersecting two concentric circles

I am writing to ask how to draw an arc intersecting two concentric circles given the angles of intersection. How does one draw a circle intersecting two concentric circles given it’s angles of intersection? Circle A and Circle B are concentric. For convenience say the centers are at the origin where x = y = 0; Circle A has radius 10 units and Circle B has radius 11 units. Circle C intersects Circle A on the x-axis with an angle of, say 30 degrees to the line tangent to circle A at the point o…

That is radii 10 and 11 and angles 30 and 25 degrees.

The script may fail with other values … don’t know .
Or the values may not have a geometric solution, in which case the script simply breaks, without any message … sorry.

What are the values that now make the script break ?

Thanks, cheers.

EDIT:

Sorry, I see now that the values are 4, 5, 35, 45.

It still seems to work here

… But the line passing throuh the circle center seems to be too short …

Anyway, here is the file:

walden-18-5-22.3dm (37.1 KB)

EDIT AGAIN:

I made the script draw a longer line.
Hope it helps …

walden-b.py (4.4 KB)