I suppose simply first joining the vertical and horizontal line before doing the bool operation using the circle on the joined lines would create the result you want. (Unless I've completely misunderstood your request...)

Best regs,

Jimmy

On Sun, Mar 8, 2009 at 12:23 AM, Kalman KHIRALY <khiraly123@...961...> wrote:

Hi!

I would like to achieve a trim/extent feature like in many CAD-like application can be found.

Here is a little screenshot what I trying to do: http://khiraly.googlepages.com/trim_extend.png

Here are the steps what I did: There are two lines and a circle, so

1. I converted the circle to path
2. I opened up the circle
3. I duplicated the line, and go to the Path->Cut Path menuitem
4. I repeated the above step to the other line

Sadly this precedure involves some imprecisement, I zoomed into, and created this screenshot: http://khiraly.googlepages.com/circle-imprecise.png

Can somebody propose a precodure where the result is mathematically correct, and does not have imprecisement? Needless to say, that I cant union the three paths together...

Or should I wait until a trim/extend tool arrives? (I use rev 20844, from today)

Any ideas?

Best regards, Khiraly

---

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-----Original Message----- From: Kalman KHIRALY [mailto:khiraly123@...961...] Sent: zondag 8 maart 2009 0:23 To: inkscape-user@lists.sourceforge.net Subject: [Inkscape-user] Trim/extend feature questions

Hi!

I would like to achieve a trim/extent feature like in many CAD-like application can be found.

Here is a little screenshot what I trying to do: http://khiraly.googlepages.com/trim_extend.png

Here are the steps what I did: There are two lines and a circle, so

1. I converted the circle to path
2. I opened up the circle
3. I duplicated the line, and go to the Path->Cut Path

menuitem 4. I repeated the above step to the other line

Sadly this precedure involves some imprecisement, I zoomed into, and created this screenshot: http://khiraly.googlepages.com/circle-imprecise.png

Can somebody propose a precodure where the result is mathematically correct, and does not have imprecisement? Needless to say, that I cant union the three paths together...

We have been working on integrating a new math library (lib2geom) into Inkscape. Unfortunately, the boolean ops in that library need still a bit of work, although they already work pretty nice. They should be more precise than the boolops we have now. I can't say how long it will take to convert to the new library, sorry. But we are working on it :-)

Cheers, Johan