tag:blogger.com,1999:blog-4722727826918942842.post7855400058337678354..comments2018-02-17T20:14:27.376+08:00Comments on dominoc925: Convert between GDM2000 and Peninsular Malaysian States Cassini coordinates using this Google gadgetdominoc925http://www.blogger.com/profile/09946927285702210239noreply@blogger.comBlogger14125tag:blogger.com,1999:blog-4722727826918942842.post-54388408873064883322017-10-26T01:52:58.743+08:002017-10-26T01:52:58.743+08:00Hi, can I ask you a favor. I'm looking for a f...Hi, can I ask you a favor. I'm looking for a formula on how to do projection from GDM2000 to RSO Geocentric. I was given a task to manually calculate on the projection. So, Ineed detail on every calculation. I'm looking forward for an answer. Thanks in advance =)Omar Farouqhttps://www.blogger.com/profile/17944020179530725249noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-61669640779994561682017-03-20T19:38:30.044+08:002017-03-20T19:38:30.044+08:00@Awang, RSO and GDM are different. RSO is a projec...@Awang, RSO and GDM are different. RSO is a projection while GDM is a datum. Together they make up a coordinate system. dominoc925https://www.blogger.com/profile/09946927285702210239noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-77536476320887631602017-03-19T09:21:11.629+08:002017-03-19T09:21:11.629+08:00May I know if the rso and gdm is the same coordina...May I know if the rso and gdm is the same coordinate system? If they are different, what is their different?Awanghttps://www.blogger.com/profile/00193871238806735015noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-3376410649116475362016-07-21T11:19:37.989+08:002016-07-21T11:19:37.989+08:00Is there a way to convert google earth co ordinate...Is there a way to convert google earth co ordinates (WGS 84) to GDM 2000? Many thanksAlvin Lohhttps://www.blogger.com/profile/05072870512714269336noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-4015510653600170372016-01-01T08:50:37.942+08:002016-01-01T08:50:37.942+08:00Thank you, dominoc925, for the explanation.Thank you, dominoc925, for the explanation.Heng Malaccahttps://www.blogger.com/profile/11901596262385242414noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-75644620716309027892016-01-01T08:00:48.025+08:002016-01-01T08:00:48.025+08:00@Malacca,
GDM is a geodetic datum while Cassini S...@Malacca, <br />GDM is a geodetic datum while Cassini Soldner is a projection referencing the datum. Taken together, they can be considered a "coordinate system". <br /><br />Typically, to convert to UTM zone 48, Cassini-Soldner xy can be converted first to geographic lat,lon and then to UTM 48. A datum conversion may be needed since UTM 48 typically uses WGS84 datum.dominoc925https://www.blogger.com/profile/09946927285702210239noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-72391135900799897152016-01-01T00:10:38.149+08:002016-01-01T00:10:38.149+08:00May I know if GDM2000 and Cassini-Soldner are the ...May I know if GDM2000 and Cassini-Soldner are the same or two different coordinate systems? <br /><br />I was provided with xyz data (offshore of Mersing - Pulau Besar and Pulau Pemanggil) where the xy data are in Cassini-Soldner coordinate system. I will need to convert the Cassini-Soldner coordinates into UTM-48. <br /><br />Can you advise please?<br /><br />Heng Malaccahttps://www.blogger.com/profile/11901596262385242414noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-2254824630387506392013-04-19T20:17:03.983+08:002013-04-19T20:17:03.983+08:00Right, right, I realised that after I had posted, ...Right, right, I realised that after I had posted, thought it was a cassini to wgs conversion, would have been epic. I've noticed a slight difference in the wgs84 and gdm penang, but at least it fits. Anyways really enjoy your blog, are you located in Malaysia? If so maybe a cuppa teh tarih one evening.Troy Diackhttps://www.blogger.com/profile/06283772639762481051noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-50994463231445213602013-04-13T07:52:32.745+08:002013-04-13T07:52:32.745+08:00Hi Troy, it's just the standard Cassini-Soldne...Hi Troy, it's just the standard Cassini-Soldner projection calculation published on the Internet. This is one place http://www.scribd.com/doc/47407155/PKPUP3-2009dominochttps://www.blogger.com/profile/09946927285702210239noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-62140741366199236422013-04-12T21:59:22.012+08:002013-04-12T21:59:22.012+08:00Well done dominoc925, this is very helpful. I was ...Well done dominoc925, this is very helpful. I was wondering if you could post the calculation for the conversion.Troy Diackhttps://www.blogger.com/profile/06283772639762481051noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-32900024407282372682013-04-12T21:58:10.185+08:002013-04-12T21:58:10.185+08:00Well done, very helpful. Can you list the calculat...Well done, very helpful. Can you list the calculations, would be a lot easier to plug into excel. For a sheet with numerous entries.Troy Diackhttps://www.blogger.com/profile/06283772639762481051noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-65511876564238959162011-08-24T21:31:26.030+08:002011-08-24T21:31:26.030+08:00The gadget has been updated to use GDM2000(2009) o...The gadget has been updated to use GDM2000(2009) origins.d0min0chttps://www.blogger.com/profile/09946927285702210239noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-18877736915626976242011-06-07T14:59:57.731+08:002011-06-07T14:59:57.731+08:00Hi Hilmy
I am using the GDM2000 parameters as publ...Hi Hilmy<br />I am using the GDM2000 parameters as published by JUPEM in their Technical Manual on the Geocentric Datum of Malaysia (GDM2000) dated Aug 2003. If the State Cassini origins have changed since the Tsunami then I will have to look for the new parameters and update the gadget. And yes, the lat/long coordinate system is GDM2000.<br />thanksd0min0chttps://www.blogger.com/profile/09946927285702210239noreply@blogger.comtag:blogger.com,1999:blog-4722727826918942842.post-38151994919652905752011-06-06T14:20:51.254+08:002011-06-06T14:20:51.254+08:00Hi,
Just came across this post whilst doing some ...Hi,<br /><br />Just came across this post whilst doing some googling on GDM2000. Very interesting gadget you have there.<br /><br />Some comments:<br />1. I assume you are using the GDM2000 parameters as published by EPSG (eg EPSG:3168 for Perak). These have non-zero easting, northing offsets. At some point (after August 2003), the Survey Dept (JUPEM)in Malaysia zeroed out all the state offsets. Hilmyhttps://www.blogger.com/profile/05113482407634970760noreply@blogger.com