graphics and xy plotter

It depends on what you want to plot.

Do you want to trace the edges of an image, or do you want to draw a direct copy of the bitmap?

Think about it for a moment, how would you manually move the plotter to create the image you are trying to plot. Then let us know so we can offer some advice.

Thanks Andyclap!

I need 2 options of trace:
  a) edges of an imagen
  b)draw a direct copy of the bitmap

what can I do? any idea ??

thanks sincerely

help!!!!!!!!!!!!!

pls!!
help!
im desesperate
thanks for all

I think some more information would be helpful:

What sort of driver do you have for the plotter device?
- Do you send out ascii/simple binary commands to it via a COM/LPT port?
- is there a printer driver available?
- Do you know how to control it already and are looking for image processing hints?

Do you know about image processing in VB
- GetPixel in a picturebox?
- windows GDI?
- Safearray and copymemory?

Do you know any image processing mathematical techniques?
- filter functions using matrix based filters for edge detection?
- colour space transforms, e.g. RGB -> Greyscale, dithering?


It's an interesting topic, but I really need to know how much you already know before delving into it. It's also not at all simple to do from VB, so you're not going to get a quick answer such as "Use the Picture.plotit function"

Have you tried contacting the device manufacturer for information - they can often be quite helpful (is this a homemade device even? I built a simple plotter using Lego Mindstorms a few months ago - terribly wobbly output though).

andyclap

Thanks for helpme AndyClap

>>What sort of driver do you have for the plotter device?
I want make the driver, send ascii xy via serial port.

>>Do you know about image processing in VB
no,

>>Do you know any image processing mathematical techniques?
no, any web page or book about of mathematical tecniques???

Im from scratch.

pls help me :)

e^x thanks!!!

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