Hi,
thank you, I will definitely try your approach.
By the way, the first drawing was partially wrong, it showed the “parametric
width” on the wrong side.
Here is the fixed one:
http://imageshack.us/photo/my-images/34/unledgxq.jpg/
I’ll let you know, thank you
Errico
On Fri, Jul 22, 2011 at 9:28 PM, Oleksandr Huziy <[email protected]> wrote:
> Hi,
>
> I would do it as follows.
> 1. define Affine transform to the plane where your target rectangle
> has axes parallel to the coordinate axes (actually in the example I also
> made the transformed rectangle to be of width=1 and height=1, and the lower
> left corner to coinside with the origin of the coordinate system).
> 2. then using the inverse get the rectangle on original plane
>
> see attached file.
> --
> Oleksandr
>
>
> 2011/7/22 Errico Demly Chirulli <[email protected]>
>>
>> Hi,
>> I need to build a geometry object, it requires some complex operation
>> and I'm a bit lost in the API so I'm asking here to find if someone
>> more experienced with GT can help.
>> I start with two points.
>> I need to build a Rectangle with these two points being at the center
>> of two opposite sides.
>> So the two points define one of the two dimensions(let's call it
>> "height"), the other one (the "width") is from a known parameter.
>> Here is a bad drawing of what I need to do :
>> http://imageshack.us/photo/my-images/204/unledgxq.jpg/
>> Thank you
>> Errico
>>
>>
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