🚀 go-pugleaf

>   First thing i would like to know is there 
   >   any autocad clone component i could use instead of developing my own.

YES 
Our MetaDraw control should meet your needs

MetaDraw is designed specifically to support this type of application.

MetaDraw looks like a standard picturebox but provides support for 
    Create & edit by code
    Create and edit by Mouse & Keyboard
    Zoom
    Scroll
    Print
    Clipboard
    Save & Load to variety of formats

Every element ( line, shape, text, merged image )
is distinct within overall drawing - you can even name
and associate additional hidden data ( your "properties" ) 
with each element and even search through the elements for 
those with your set properties.

User can be allowed to select, drag, rotate, resize elements
but you have full control to allow or disallow these activities.
MetaDraw even has UnDo and ReDo ( also subject to your limitations

You can show a grid ( dots or lines ) and can force alignment to grid

Check it out at www.Bennet-Tec.Com
or drop me a note ( please include a copy of this note )
and I'll be happy to discuss MetaDraw features and 
your requirements in full detail, and then get you started with
an evaluation.

Best wishes

    Jeff Bennett
    Jeff@Bennet-Tec.Com

    

"ScOe" <sven.savic@zg.hinet.hr> wrote in message news:<3fbe5115@newsgroups.borland.com>...
> I have certain problem ... i want to implement some common drawing
> procedures in my application. I'm not sure what is the best component to
> draw on. For now i'm using TPicture, but any suggestions on that subject is
> wellcome. Precedures to be implemented are following:
> line drawing, object snap (catch end of line and draw from that position),
> zoom in, out ...etc.
> First thing i would like to know is there any autocad clone component i
> could use instead of developing my own.
> Every line is an object which has some properties, on mouse over i need to
> highlight it and show properties in some way. Which is the best way to deal
> with that kind of problem. I thought to loop through line container and to
> compare it position with position of selected.
> 
> 
> Thanx