[Sidefx-houdini-list] grid gradation

Edward Lam edward at sidefx.com
Wed Apr 16 12:26:57 EDT 2014


On 16/04/2014 12:06 PM, herman lee wrote:
> It works great, may I ask what does ($TX-$XMIN) do?

$XMIN is the minimum X coordinate over the whole geometry. So 
($TX-$XMIN) translates the geometry so that it always starts from 0 in 
the X axis.

-Edward

> -----Original Message-----
> From: sidefx-houdini-list-bounces at sidefx.com
> [mailto:sidefx-houdini-list-bounces at sidefx.com] On Behalf Of Edward Lam
> Sent: Wednesday, 16 April, 2014 11:50 PM
> To: sidefx-houdini-list at sidefx.com
> Subject: Re: [Sidefx-houdini-list] grid gradation
>
> On 16/04/2014 11:16 AM, herman lee wrote:
>> I want to create a grid with its coordinates gradually change from X
>> and Z, like the below image-
>
> If you just want to hack it:
> - Append Point SOP to default Grid
> - Replace $TX in the Position parameter by: 1.1*$BBX*($TX-$XMIN)
> - Transform/Scale it back to how you want it
>
> Cheers,
> -Edward
>
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