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Re: [Fwd: Re: [libredwg] AUTOCAD Info]

From: Felipe Sanches
Subject: Re: [Fwd: Re: [libredwg] AUTOCAD Info]
Date: Wed, 20 Jan 2010 04:44:06 -0200

it would be great if we can put all this info in our wiki!

On Wed, Jan 20, 2010 at 4:18 AM, Rodrigo Rodrigues da Silva
<address@hidden> wrote:
> Thanks!
> -------- Original Message --------
> Subject:        Re: [libredwg] AUTOCAD Info
> Date:   Wed, 20 Jan 2010 11:42:35 +0530
> From:   guruprasad rane <address@hidden>
> To:     Rodrigo Rodrigues da Silva <address@hidden>
> References:     <address@hidden>
> <address@hidden>
> 1. What is a MTEXT? Is it different from a TEXT?
> MTEXT is mutliline text. It support formatting features like bold, italics,
> underline, left-center-right align, top-middle-bottom align, tabs,
> numbering, letter-spacing, font-angle(obliquing), font-stretching (width
> factor),etc. Different formating features can be applied to different part
> of MTEXT (ie. first few words in bold, next few in italics) Above this we
> can format test using text styles.
> TEXT is single line text. If you need text with two line we need to create
> two seperate TEXT. It supports left-center-right, width factor and
> obliquing. But these features need to be applied to the whole text. We can
> not have different formatting to different parts of TEXT.
> 2. What is a viewport?
> Viewport is the rectangle window through which we see the graphics. Say the
> black screen on which we can see a circle or click on the viewport to start
> drawing a line. We can create multiple viewports at a time. Each viewport
> can be assigned a direction like top, bottom, left, right, front, back,
> isometeric, perspective etc. So we can see a cube from top in top view port,
> from left fem left viewport etc.
> Remaining questions I will answer later. If needed I can send snapshots of
> these items..
> Regards
> Guruprasad
> 2010/1/20 Rodrigo Rodrigues da Silva <address@hidden
> <mailto:address@hidden>>
>       I can program somewhat but i have very good understanding about
>       AUTOCAD,
>       I have used AUTOCAD for around 12years. I know the software in
>       and out.
>       So feel free to ask me questions about it.
>   Do you have any understanding on the internals?
>   Can you answer any of these questions:
>   1. What is a MTEXT? Is it different from a TEXT?
>   2. What is a viewport?
>   3. What is a VP_HDR_CTRL_OBJ?
>   4. What is an APPID?
>   5. How many LAYER_CONTROL objects can we find within a file?
>   6. What is an XRECORD?

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