Topic: Intersection Point of Hatch

[udaafri]

Is it possible to get the Intersection Point of Hatch with Lisp?

[Crank]

Make sure the variable OSNAPHATCH=1

[udaafri]

Make sure the variable OSNAPHATCH=1

Thanks for your reply.
I plan to collect all intersection points of the hatch.
I can find the intersection point of the line or Pline using AutoLisp, but not for the hatch.

[ribarm]

Temporarily explode hatch, find intersection points between each pair of lines and finally do undo - before explode...
It shouldn't be so hard - look for LeeMac's intersection sub functions...

[BIGAL]

There is HB.lsp hatch boundary which makes a boundary  pline of the hatch. Is this what you want ?

[udaafri]

Temporarily explode hatch, find intersection points between each pair of lines and finally do undo - before explode...
It shouldn't be so hard - look for LeeMac's intersection sub functions...

Thanks for your info.
If the hatch exploded that's no problem. I have found Lisp code.

[udaafri]

There is HB.lsp hatch boundary which makes a boundary  pline of the hatch. Is this what you want ?

Not this one.
I wanna get the intersection point from the hatch and create something like a circle or put the point from these points.
 

[Lee Mac]

You could create a copy of the hatch, explode the copy, and iterate over the objects generated from the explode operation using entnext, detecting intersections between such objects.

[udaafri]

You could create a copy of the hatch, explode the copy, and iterate over the objects generated from the explode operation using entnext, detecting intersections between such objects.

Thanks for your explanation Lee.

[danAllen]

For example of a lisp that iterates objects and finds intersections, see CAB's break lisp. This is the latest version I could find:
http://www.theswamp.org/index.php?topic=10370.msg594917#msg594917

[udaafri]

For example of a lisp that iterates objects and finds intersections, see CAB's break lisp. This is the latest version I could find:
http://www.theswamp.org/index.php?topic=10370.msg594917#msg594917

danAllen Thanks for your info.