The attached image is the render of a prism object (linear_sweep 
bezier_spline) generated by Inkscape from an image.

My question is if it would be possible, and if yes how, to drape this 
prism over a (gently) undulating height_field? The vertical component 
should remain vertical of course as they represent (foundation) walls.

Thomas

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Download 'inkscape_mohenjodaro_test.png' (219 KB)

Preview of image 'inkscape_mohenjodaro_test.png'

Thomas de Groot <tenDOTlnDOTretniATtoorgedDOTt> wrote:
> My question is if it would be possible, and if yes how, to drape this
> prism over a (gently) undulating height_field? The vertical component
> should remain vertical of course as they represent (foundation) walls.

Extend the prism in y, and intersect with a copy of the heighfield offset in y?

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On 28-7-2011 10:24, Bill Pragnell wrote:
> Thomas de Groot<tenDOTlnDOTretniATtoorgedDOTt>  wrote:
>> My question is if it would be possible, and if yes how, to drape this
>> prism over a (gently) undulating height_field? The vertical component
>> should remain vertical of course as they represent (foundation) walls.
>
> Extend the prism in y, and intersect with a copy of the heighfield offset in y?
>
>

Hmm... that might do it indeed. I have to experiment now, thanks for the 
tip, Bill. I shall come back with results.

Thomas

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On 28-7-2011 10:24, Bill Pragnell wrote:
> Extend the prism in y, and intersect with a copy of the heighfield offset in y?

Yes indeed! That seems to do the trick. Here a small test image.

Thanks again!

Thomas

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Attachments:
Download 'inkscape_mohenjodaro_test.png' (237 KB)

Preview of image 'inkscape_mohenjodaro_test.png'

Thomas de Groot <tenDOTlnDOTretniATtoorgedDOTt> wrote:
> On 28-7-2011 10:24, Bill Pragnell wrote:
> > Extend the prism in y, and intersect with a copy of the heighfield offset in y?
>
> Yes indeed! That seems to do the trick. Here a small test image.

Are you sure you used the heightfield correctly? In some areas, the walls seem
deeper than in others. Or is that deliberate? :)

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On 07/28/2011 06:02 AM, Thomas de Groot wrote:
> On 28-7-2011 10:24, Bill Pragnell wrote:
>> Extend the prism in y, and intersect with a copy of the heighfield
>> offset in y?
>
> Yes indeed! That seems to do the trick. Here a small test image.
>
> Thanks again!
>
> Thomas
>

cool ... very clever solution

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On 28-7-2011 11:21, Bill Pragnell wrote:
> Are you sure you used the heightfield correctly? In some areas, the walls seem
> deeper than in others. Or is that deliberate? :)

Not deliberate, but indeed a need for better coordination of the 
parameters :-) On the other hand, it can be used for some height variations.

This image shows a better construction.

Thomas

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Attachments:
Download 'inkscape_mohenjodaro_test.png' (316 KB)

Preview of image 'inkscape_mohenjodaro_test.png'

Thomas de Groot <tenDOTlnDOTretniATtoorgedDOTt> wrote:
> Not deliberate, but indeed a need for better coordination of the
> parameters :-) On the other hand, it can be used for some height variations.
>
> This image shows a better construction.

Cool :)

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On 28-7-2011 12:47, Jim Holsenback wrote:

> cool ... very clever solution

Isn't it? This will give me the possibility to populate my city of 
Gancaloon in an easy manner. Only for overviews of course because the 
buildings will not have enough details. I have now to devise a street 
plan, and find a way to make the buildings of slightly different height, 
probably by separate and superposed prisms. As everything can be based 
on image_maps, this is going to be mainly GIMP work :-)

Thomas

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On 28-7-2011 13:23, Bill Pragnell wrote:
> Cool :)
>
>

<grin> I am going to feel like the Great Architect ;-)

Thomas

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