draw sin and cos

Maulana I Kahirawan

Delphi Developer

Sun, 07 Oct 2001 03:00:00 GMT

draw sin and cos

does anybody know how to draw sin or cos smoothly?!,
I tried to draw in TChart but the result was not good...
please help me...

Rene Tschaggela

Delphi Developer

Sun, 07 Oct 2001 03:00:00 GMT

Re:draw sin and cos

for i:=o to image.width-1 do
image.canvas.pixels[x,(image.height div 2)+(image.height div 2)*sin(2*pi*i/image.width)]:=clred;

Rene

Quote

Maulana I Kahirawan wrote:

> does anybody know how to draw sin or cos smoothly?!,
> I tried to draw in TChart but the result was not good...
> please help me...

Earl F. Glyn

Delphi Developer

Sun, 07 Oct 2001 03:00:00 GMT

Re:draw sin and cos

Quote

Rene Tschaggelar <tschagge...@access.ch> wrote in message news:371D7A00.2D7DF55A@access.ch...
> for i:=o to image.width-1 do
> image.canvas.pixels[x,(image.height div 2)+(image.height div 2)*sin(2*pi*i/image.width)]:=clred;

Using the Pixels property will be very slow. MoveTo/Line will be a lot faster.

efg
________________________________
efg's Computer Lab: www.efg2.com/lab
Delphi Books: www.efg2.com/lab/TechBooks/Delphi.htm

Earl F. Glynn E-Mail: EarlGl...@att.net
Overland Park, KS USA

Maulana I Kahirawa

Delphi Developer

Tue, 09 Oct 2001 03:00:00 GMT

Re:draw sin and cos

thank's for your advise....

Rene Tschaggelar <tschagge...@access.ch> wrote in article
<371D7A00.2D7DF...@access.ch>...

Quote

> for i:=o to image.width-1 do
> image.canvas.pixels[x,(image.height div 2)+(image.height div

2)*sin(2*pi*i/image.width)]:=clred;

Quote

> Rene

> Maulana I Kahirawan wrote:

> > does anybody know how to draw sin or cos smoothly?!,
> > I tried to draw in TChart but the result was not good...
> > please help me...

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