On 12-03-29 03:17 PM, dxli [via LibreCAD] wrote:
Allen, Currently, I'm in charge of overseeing 2.0 series development, and I'm very interested in expanding geometry features of LibreCAD 2.0. I added several drawing methods for ellipse/cirlce to the 2.0 series already, and I'm eager to add the features requested.
Before I the implementation, I would like to have the features well defined. Please let me know whether you would like to add anything to the following,
1, draw a circle tangential to a given circle/arc/ellipse by specifying the center of the new circle. drawing an arc can be done by drawing a circle first, and cut/trim the circle generated.
2, draw a circle tangential to a given circle/arc/ellipse by specifying two points on the circle.
3, draw an ellipse tangential to a given circle/arc/ellipse by specifying the ellipse center and two points on the ellipse.
4, draw an ellipse tangential to a given circle/arc/ellipse by specifying the ellipse center, major axis direction/radius.
other features I was thinking about:
to complete conic sections by adding drawing methods for hyperbola and parabola, since I'm not an engineer, I'm not sure whether those conic sections are useful in a CAD.
Donations are always welcome. As a free software project: we care the most about the quality of our software, not market share or revenue generated.
Thanks for reporting!
dxli
Allen wrote
I have used other CAD programs that allow you to draw circles that are tangent to one another.
I'm not seeing a function for that in LibreCAD, have I missed something??
Some of the "edit" functions available in the menu bar are not shown in the side pallet.
Can they be added??
This program could be an important addition to my business, if I can get it to do what is needed I would be inclined to make donations (plural) to keep it up and running.
You help me, I'll help you!!!
LibreCAD is a fantastic start, I hope this works for us both.
Allen
To unsubscribe from Tangent arcs, circles, or ellips, click here.
NAML
dxli,
Thanks for your very kind reply.
Any or all of the four drawing feature you mention are very useful.
I do have one suggestion, the old version of MegaCAD had a drawing feature that was especially helpful.
You could draw a tangent arc or line between two circles or ellipsis by clicking on the two entities, a tangent line would snap to both entities, and in the case of an arc, you would specifying a radius and providing your radius was large enough it would plot the arc tangentially to both entities, you could then trim and move on.
It was also able to make tangent arcs (or circles) by clicking on three entities. This was all incredibly fast and effective!
It would be great if you could make that happen!
I'm glad to hear a conic section is forth coming, I have used those features in TuroCAD in the past and it would be a powerfull addition to LibreCAD. Having foci and directrix verifications as it applies to your drawings can be important information on some projects.
Additionally, I was looking to see what file format's I could import, I found import to be unavailable.
Will that be working in 2.0?? What format's will be on the list?? Approximately when is 2.0 going to be available??
Something you may want to keep in mind:
If a person is running a Linux OS exclusively, you only have one other CAD program available to you that I know of worth anything (and I've looked). It's a program written by "Weber" and it is actually a CAM/CAD program with tool path generation and 3D solid modeling, all available at extra cost. It's way more program than most folks need or want and can cost up to $1200.00 US.
An excellent value IF you need all that.
Your commitment to a high end program first and foremost is commendable!
I believe in what Linux and you folks are doing, especially as it pertains to third world users. They need technology they can afford or get their hands on so we can all benefit from our global intellect.
Again, I will help fund your work as best I can if I can use it.
I look foreword to hearing from you.
Thank you again, Allen
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