RE: [OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing [SEC=UNCLASSIFIED]
Padmini, It has been a long, long time since I used MicroStation, however this may help. Typically it will depend on the people who captured the data that you are working with: - some are only concerned with the immediate vicinity of their engineering project and will arbitrarily define a local (cartesian) grid with a datum point of (0,0) or similar and work with these coordinates. - others will be quite pedantic and work with projected coordinates e.g. UTM coords within their design files. With the first example, you'll have to find the relationship between the arbitrary datum and your Spatial Reference System and transform the data. With the second example, if you know the source SRS try just applying it. Now being good spatial professionals, your data providers will have provided spatial metadata (at least ISO 19139) with their spatial datasets, so you'll be able to easily work out the lineage of the data sets that were provided to you and work out the appropriate course of action. HTH. Bruce -Original Message- From: discuss-boun...@lists.osgeo.org [mailto:discuss-boun...@lists.osgeo.org] On Behalf Of bpadm...@bel.co.in Sent: Wednesday, 11 November 2009 4:43 PM To: discuss@lists.osgeo.org Subject: [OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing hello, I am newbie using Quantum GIS. I am able to extract layers from DGN file, but couldn't geo-reference it. are their any ways of doing so, please suggest. thanks and regards, Padmini Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Bharat Electronics or supp...@bel.co.in immediately and destroy all copies of this message and any attachments. ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: RE: [OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing [SEC=UNCLASSIFIED]
Sorry if it's been mentioned, but if you can run ogrinfo against the file and show the coordinate ranges to the mailing list - plus tell the general geographic region the data lands in, that might also help us figure it out for you. Best wishes, Tyler - Original Message - From: Bruce Bannerman b.banner...@bom.gov.au Date: Sunday, November 15, 2009 6:25 pm Subject: RE: [OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing [SEC=UNCLASSIFIED] To: 'OSGeo Discussions' discuss@lists.osgeo.org Padmini, It has been a long, long time since I used MicroStation, however this may help. Typically it will depend on the people who captured the data that you are working with: - some are only concerned with the immediate vicinity of their engineering project and will arbitrarily define a local (cartesian) grid with a datum point of (0,0) or similar and work with these coordinates. - others will be quite pedantic and work with projected coordinates e.g. UTM coords within their design files. With the first example, you'll have to find the relationship between the arbitrary datum and your Spatial Reference System and transform the data. With the second example, if you know the source SRS try just applying it. Now being good spatial professionals, your data providers will have provided spatial metadata (at least ISO 19139) with their spatial datasets, so you'll be able to easily work out the lineage of the data sets that were provided to you and work out the appropriate course of action. HTH. Bruce -Original Message- From: discuss-boun...@lists.osgeo.org [mailto:discuss-boun...@lists.osgeo.org] On Behalf Of bpadm...@bel.co.in Sent: Wednesday, 11 November 2009 4:43 PM To: discuss@lists.osgeo.org Subject: [OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing hello, I am newbie using Quantum GIS. I am able to extract layers from DGN file, but couldn't geo-reference it. are their any ways of doing so, please suggest. thanks and regards, Padmini Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Bharat Electronics or supp...@bel.co.in immediately and destroy all copies of this message and any attachments. ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
RE: [OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing
Padmini, I don't use Microstation or QGIS, but you might be better off exporting your data to a DXF file. Also, I would post your question on the QGIS mailing list. This isn't the best place for questions on specific software. Landon Office Phone Number: (209) 946-0268 Cell Phone Number: (209) 992-0658 -Original Message- From: discuss-boun...@lists.osgeo.org [mailto:discuss-boun...@lists.osgeo.org] On Behalf Of bpadm...@bel.co.in Sent: Tuesday, November 10, 2009 9:43 PM To: discuss@lists.osgeo.org Subject: [OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing hello, I am newbie using Quantum GIS. I am able to extract layers from DGN file, but couldn't geo-reference it. are their any ways of doing so, please suggest. thanks and regards, Padmini Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Bharat Electronics or supp...@bel.co.in immediately and destroy all copies of this message and any attachments. ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss Warning: Information provided via electronic media is not guaranteed against defects including translation and transmission errors. If the reader is not the intended recipient, you are hereby notified that any dissemination, distribution or copying of this communication is strictly prohibited. If you have received this information in error, please notify the sender immediately. ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
[OSGeo-Discuss] Regarding The Microstation DGN Maps georeferencing
hello, I am newbie using Quantum GIS. I am able to extract layers from DGN file, but couldn't geo-reference it. are their any ways of doing so, please suggest. thanks and regards, Padmini Confidentiality Notice The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain confidential or privileged information. If you are not the intended recipient, please notify the sender at Bharat Electronics or supp...@bel.co.in immediately and destroy all copies of this message and any attachments. ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
