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How to make a hatched polygon

autodeskguest

I must hatch a area that has a outer diam of 100mm and a inner diam of 65mm.

I try to do this by hand width arc lines but those bent any way but not the

correct one.

Can I do this with a script?

 

Harry

 

 

Parents

  • Harry,

     

    it is not necessary to always quote the full text. See

    <http://www.netmeister.org/news/learn2quote2.html> and

    <http://www.cadsoft.de/newsguide.htm>.

     

    (Further, you don't need to specify a reply-to address if it's the same

    as the sender address anyway.)

     

     

    Harry H. Arends schrieb:

    I must hatch a area that has a outer diam of 100mm and a inner diam of

    65mm.

    ...

    If have to make that on layer 25. Is it possible to make a polygon that is

    19mm width?

     

    For the above geometry, you'd need 17.5 mm anyway - however, a polygon

    is always defined by its /outlines/, so the answer is "no".

     

    If you can't use a restriction for the inner circular "hole" since you

    are working on non-copper layers, you need to use two C-shaped polygons

    that cover (for example) half of your area each. You will have to draw

    the inner and outer half-circly as described earlier, and the radial

    borders as straight wires.

     

    Something like this:

      -- --

    /  |  \

    / \

    \ /

    \  |  /

      -- --

     

    You'll always have a wire of the polygon width at the border that is

    shared by both polygons (the centered vertical line in the above

    sketch). Maybe you can play with spacing and width to make it visually

    disappear.

     

    You can generate the second polygon as rotated copy of the first, so you

    need to draw only one.

     

    Tilmann

     

Reply

  • Harry,

     

    it is not necessary to always quote the full text. See

    <http://www.netmeister.org/news/learn2quote2.html> and

    <http://www.cadsoft.de/newsguide.htm>.

     

    (Further, you don't need to specify a reply-to address if it's the same

    as the sender address anyway.)

     

     

    Harry H. Arends schrieb:

    I must hatch a area that has a outer diam of 100mm and a inner diam of

    65mm.

    ...

    If have to make that on layer 25. Is it possible to make a polygon that is

    19mm width?

     

    For the above geometry, you'd need 17.5 mm anyway - however, a polygon

    is always defined by its /outlines/, so the answer is "no".

     

    If you can't use a restriction for the inner circular "hole" since you

    are working on non-copper layers, you need to use two C-shaped polygons

    that cover (for example) half of your area each. You will have to draw

    the inner and outer half-circly as described earlier, and the radial

    borders as straight wires.

     

    Something like this:

      -- --

    /  |  \

    / \

    \ /

    \  |  /

      -- --

     

    You'll always have a wire of the polygon width at the border that is

    shared by both polygons (the centered vertical line in the above

    sketch). Maybe you can play with spacing and width to make it visually

    disappear.

     

    You can generate the second polygon as rotated copy of the first, so you

    need to draw only one.

     

    Tilmann

     

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