[postgis-devel] I want to add an algorithem into postgis

[xschen]

thank you very much, i will contect them

On 08/03/2015 05:22 AM, Sandro Santilli wrote:
> On Fri, Jul 31, 2015 at 07:19:15PM -0400, xschen wrote:
>
>> I have an ideal to improve its performance, by calculating the
>> intersects between the biggest inner circle of two geometry:
>>
>> bool intersects(geometry g1, geometry g2){
>>      if( !g1.getEnvelope().intersects(g2.getEnvelope() ){
>>          return false;
>>      }else{
>>          if(g1.getInnerCircle().intersects(g2.getInnerCircle() ){  //
>> "getInnerCircle()" returns the biggest circle inside the polygon
>>              return true;
>>          }else{
>>              //calculate its details
>>                ...
>>                ...
>>          }
>>      }
>> }
> [..]
>
>> I am just begining to develop the postgis. I dont know its
>> architecture, and I am solo.
>> would someone please guide me? introduce the architecture of postgis.
> The code you're looking at is in GEOS [1], which is a port of JTS [2].
> The best way to introduce a new algorithm there is proposing it to the
> JTS development list, writing it in Java. There might also already be
> a minimum enclosing circle in JTS waiting to be ported, but you should
> check that.
>
> [1] https://trac.osgeo.org/geos/
> [2] http://tsusiatsoftware.net/jts/main.html
>
> --strk;
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