Re: [GENERAL] simple coordinate system
On Fri, Mar 16, 2007 at 15:55:15 +0100, Robin Ericsson [EMAIL PROTECTED] wrote: On 3/16/07, Tom Lane [EMAIL PROTECTED] wrote: Robin Ericsson [EMAIL PROTECTED] writes: Yes, I've looked at those, I was thinking that point looked like a good type, but it's only 2d, so maybe I need a hint on how to use this in a 3d environment. Yeah, the built-in geometric types are all 2D. If you need 3D, perhaps PostGIS can help --- otherwise you're on your own :-(. But adding a new datatype to PG isn't hard, if you can hack C at all. My hope was that there was something between standard PostgreSQL and PostGIS as I didn't want to bring in the whole PostGIS into my application. But probably it's worth it anyways. The cube contrib stuff might be useful for you. ---(end of broadcast)--- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
Re: [GENERAL] simple coordinate system
On 3/15/07, Webb Sprague [EMAIL PROTECTED] wrote: http://www.postgresql.org/docs/8.2/static/datatype-geometric.html Have you looked at these yet? If not, you asked your question prematurely and should have read the docs. If so, in what respect do they not work for you? Yes, I've looked at those, I was thinking that point looked like a good type, but it's only 2d, so maybe I need a hint on how to use this in a 3d environment. -- regards, Robin ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [GENERAL] simple coordinate system
Robin Ericsson [EMAIL PROTECTED] writes: Yes, I've looked at those, I was thinking that point looked like a good type, but it's only 2d, so maybe I need a hint on how to use this in a 3d environment. Yeah, the built-in geometric types are all 2D. If you need 3D, perhaps PostGIS can help --- otherwise you're on your own :-(. But adding a new datatype to PG isn't hard, if you can hack C at all. regards, tom lane ---(end of broadcast)--- TIP 4: Have you searched our list archives? http://archives.postgresql.org/
Re: [GENERAL] simple coordinate system
On 3/16/07, Tom Lane [EMAIL PROTECTED] wrote: Robin Ericsson [EMAIL PROTECTED] writes: Yes, I've looked at those, I was thinking that point looked like a good type, but it's only 2d, so maybe I need a hint on how to use this in a 3d environment. Yeah, the built-in geometric types are all 2D. If you need 3D, perhaps PostGIS can help --- otherwise you're on your own :-(. But adding a new datatype to PG isn't hard, if you can hack C at all. My hope was that there was something between standard PostgreSQL and PostGIS as I didn't want to bring in the whole PostGIS into my application. But probably it's worth it anyways. -- regards, Robin ---(end of broadcast)--- TIP 3: Have you checked our extensive FAQ? http://www.postgresql.org/docs/faq
[GENERAL] simple coordinate system
Hi, I'm planning a simple coordinate system, where objects are described as x, y and z. Are there any contribs or extensions available that can help me with datatypes, calculation of length between two points, etc? -- regards, Robin ---(end of broadcast)--- TIP 6: explain analyze is your friend
Re: [GENERAL] simple coordinate system
... planning a simple coordinate system, where objects are described as x, y and z. Are there any contribs or extensions available that can help me with datatypes, calculation of length between two points, etc? google postgis. It is for geographic stuff, so maybe overkill, but maybe not. There are are also geometry types native to Postgres that you can find in the docs -- regards, Robin ---(end of broadcast)--- TIP 6: explain analyze is your friend ---(end of broadcast)--- TIP 9: In versions below 8.0, the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match
Re: [GENERAL] simple coordinate system
On 3/15/07, Webb Sprague [EMAIL PROTECTED] wrote: ... planning a simple coordinate system, where objects are described as x, y and z. Are there any contribs or extensions available that can help me with datatypes, calculation of length between two points, etc? google postgis. It is for geographic stuff, so maybe overkill, but maybe not. There are are also geometry types native to Postgres that you can find in the docs I was thinking about PostGIS, but it seemed overkill for my purpose. Therefore I asked in the first place :) -- regards, Robin ---(end of broadcast)--- TIP 1: if posting/reading through Usenet, please send an appropriate subscribe-nomail command to [EMAIL PROTECTED] so that your message can get through to the mailing list cleanly
Re: [GENERAL] simple coordinate system
http://www.postgresql.org/docs/8.2/static/datatype-geometric.html Have you looked at these yet? If not, you asked your question prematurely and should have read the docs. If so, in what respect do they not work for you? On 3/15/07, Robin Ericsson [EMAIL PROTECTED] wrote: On 3/15/07, Webb Sprague [EMAIL PROTECTED] wrote: ... planning a simple coordinate system, where objects are described as x, y and z. Are there any contribs or extensions available that can help me with datatypes, calculation of length between two points, etc? google postgis. It is for geographic stuff, so maybe overkill, but maybe not. There are are also geometry types native to Postgres that you can find in the docs I was thinking about PostGIS, but it seemed overkill for my purpose. Therefore I asked in the first place :) -- regards, Robin ---(end of broadcast)--- TIP 2: Don't 'kill -9' the postmaster
