[GRASS5] v.extrude -- first version

[Jachym Cepicky]

thanks, nice to hear, that something works :-)

there is at least one small problem: when the "building" is concave,
e.g.


    +-----+     +-----+
    |     |     |     |
    |     |     |     |
    |     +-----+     |
    |                 |
    |                 |
    +-----------------+

The "roof" is going to be somehow wrong. Walls are made correctly. In
the program, roof is made just so, that the "z" coord. (objheight) is 
added for each point:

for (k = 0; k < Points->n_points; k++) {
                Vect_append_point(NewPoints, 
                Points->x[k], 
                Points->y[k], 
                Points->z[k]+objheight);
            }

did some one the same experience?

screenshot on http://les-ejk.cz/tmp/vextrude.png

right side: d.vect building3d (made with v.extrude in=building
            out=building3d height=10)

left side: nviz of the same vector

jachym


On Wed, Nov 23, 2005 at 06:51:18PM +0100, Markus Neteler wrote:
> On Wed, Nov 23, 2005 at 08:09:42AM +0100, Jachym Cepicky wrote:
> > Hallo,
> > simple but usable. I hope, I did not too much mistakes in the code -- C
> > is not my language no. 1.
> > 
> > Plans: support for DEMs, support for height stored in attribute table
>  
> Ciao Jachym,
> 
> great job! I just tried, it's nice...
> 
> Congrats
> 
>  Markus
> 
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-- 
Jachym Cepicky
e-mail: jachym.cepicky at centrum.cz
URL: http://les-ejk.cz
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