RE: [OSGeo-Discuss] GIS Data Models
Hi, Is anyone familiar with the SDSFIE data models for facilities, infrastructure, and environment (http://www.sdsfie.org/)? They publish models for many domains such as communications, transportation, land use, etc. There is a web browser of their model data. From the home page, select Web Tools - Web Browser or UML Model Viewer. Thanks, Orest. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Landon Blake Sent: Monday, December 03, 2007 11:03 AM To: OSGeo Discussions Subject: RE: [OSGeo-Discuss] GIS Data Models Ian, I'm not actually talking about data structures. When I say data model I'm really talking about a model or template for GIS data in a particular industry or application. Thanks for the information. Landon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian Turton Sent: Saturday, December 01, 2007 11:28 AM To: OSGeo Discussions Subject: Re: [OSGeo-Discuss] GIS Data Models On Nov 27, 2007 12:32 PM, Landon Blake [EMAIL PROTECTED] wrote: Does anyone know if there has been work on GIS Data Models besides any organization other than ESRI? (http://www.esri.com/software/arcgis/geodatabase/about/data-models.html) Martin Davies (of JTS fame) recently had a blog post on this at http://lin-ear-th-inking.blogspot.com/2007/11/bible-of-spatial-indexing. html. I've got The Design and Analysis of Spatial Data Structures out of the library at work and am slowly working my way through it. I've already learned a bunch of stuff about point quadtrees and I'm only up to chapter two, so the the other two books Martin mentions may well also be worth checking out. Ian ___ 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 ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
RE: [OSGeo-Discuss] GIS Data Models
Thanks for the information Evan. Landon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Lucena, Ivan Sent: Friday, November 30, 2007 3:47 PM To: OSGeo Discussions Subject: Re: [OSGeo-Discuss] GIS Data Models Landon, There it goes: Landon Blake wrote: Does anyone know if there has been work on GIS Data Models besides any organization other than ESRI? (http://www.esri.com/software/arcgis/geodatabase/about/data-models.html) There it goes: SPRING: Integrating Remote Sensing and GIS with Object-Oriented Data Modelling. G.Câmara, R.Souza, U.Freitas, J.Garrido, F. Ii. *Computers and Graphics*, vol.15(6):13-22, 1996. Note: Ivan Lucena on page 15 is me. However, this material is definitely written for a user of ESRI software. It is possible to extract basic principles from the material ESRI produces on data models, although this can be difficult given the amount of software specific content. Sure. Has there been any effort by the open source community to develop GIS Data Models? (By a GIS Data Model I mean a template or set of guidelines for one or more thematic layers and the features they contain as these layers apply to a particular application. For example: Agriculture) Just as an example, using that software above mentioned I once developed a Data Model for research in Precision Agriculture. Basically what you do is given a source of datasets in the real word, like Geological Map or Altimetry you take the class that best represent it, like Thematic or Numeric and you give it a name and symbology appropriated for your application domain. You do that previous to the data acquisition and you can use the schema you used in several different projects. Note: The physical data storage is trick tough, by the concept of multi-representation you can have in a database one single Thematic layer represented by vector and/or raster. For Numeric layers is even tricker, it could have Vector (contour map, triangular grid, 3D points) or Raster (regular grid) for the same Layer. How does it sounds? I never rear of any other software that does that. Have you? I am starting work on a data model for Survey Control as part of my efforts at the SurveyOS Project and at my day job. As part of this work I would like to develop some tutorials and templates for data model design that could be used by others in the FOSS GIS arena. These data model patterns will focus on vendor-neutral GIS design. I hope to work on other data models as the years pass, and most of these will be survey related. You can play if that software to get some ideas but it is not exactly the neutral solution you want: http://www.dpi.inpe.br/spring/english/index.html I am curious if there has been work like this done before. For example, I'll need to define some abstract data types for Feature attributes that could be mapped to various software platforms and/or programming languages. Again, Not exactly. It answers you first question but not the second one. Any thoughts? It is certainly a cool topic. :) Ivan SLB *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 ___ 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
RE: [OSGeo-Discuss] GIS Data Models
Orest, That was a great link. Thank you very much. Landon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Orest Halustchak Sent: Monday, December 03, 2007 8:29 AM To: OSGeo Discussions Subject: RE: [OSGeo-Discuss] GIS Data Models Hi, Is anyone familiar with the SDSFIE data models for facilities, infrastructure, and environment (http://www.sdsfie.org/)? They publish models for many domains such as communications, transportation, land use, etc. There is a web browser of their model data. From the home page, select Web Tools - Web Browser or UML Model Viewer. Thanks, Orest. -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Landon Blake Sent: Monday, December 03, 2007 11:03 AM To: OSGeo Discussions Subject: RE: [OSGeo-Discuss] GIS Data Models Ian, I'm not actually talking about data structures. When I say data model I'm really talking about a model or template for GIS data in a particular industry or application. Thanks for the information. Landon -Original Message- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Ian Turton Sent: Saturday, December 01, 2007 11:28 AM To: OSGeo Discussions Subject: Re: [OSGeo-Discuss] GIS Data Models On Nov 27, 2007 12:32 PM, Landon Blake [EMAIL PROTECTED] wrote: Does anyone know if there has been work on GIS Data Models besides any organization other than ESRI? (http://www.esri.com/software/arcgis/geodatabase/about/data-models.html) Martin Davies (of JTS fame) recently had a blog post on this at http://lin-ear-th-inking.blogspot.com/2007/11/bible-of-spatial-indexing. html. I've got The Design and Analysis of Spatial Data Structures out of the library at work and am slowly working my way through it. I've already learned a bunch of stuff about point quadtrees and I'm only up to chapter two, so the the other two books Martin mentions may well also be worth checking out. Ian ___ 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 ___ 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] GIS Data Models
On Nov 27, 2007 12:32 PM, Landon Blake [EMAIL PROTECTED] wrote: Does anyone know if there has been work on GIS Data Models besides any organization other than ESRI? (http://www.esri.com/software/arcgis/geodatabase/about/data-models.html) Martin Davies (of JTS fame) recently had a blog post on this at http://lin-ear-th-inking.blogspot.com/2007/11/bible-of-spatial-indexing.html. I've got The Design and Analysis of Spatial Data Structures out of the library at work and am slowly working my way through it. I've already learned a bunch of stuff about point quadtrees and I'm only up to chapter two, so the the other two books Martin mentions may well also be worth checking out. Ian ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
Re: [OSGeo-Discuss] GIS Data Models
Landon, There it goes: Landon Blake wrote: Does anyone know if there has been work on GIS Data Models besides any organization other than ESRI? (http://www.esri.com/software/arcgis/geodatabase/about/data-models.html) There it goes: SPRING: Integrating Remote Sensing and GIS with Object-Oriented Data Modelling. G.Câmara, R.Souza, U.Freitas, J.Garrido, F. Ii. *Computers and Graphics*, vol.15(6):13-22, 1996. Note: Ivan Lucena on page 15 is me. However, this material is definitely written for a user of ESRI software. It is possible to extract basic principles from the material ESRI produces on data models, although this can be difficult given the amount of software specific content. Sure. Has there been any effort by the open source community to develop GIS Data Models? (By a GIS Data Model I mean a template or set of guidelines for one or more thematic layers and the features they contain as these layers apply to a particular application. For example: Agriculture) Just as an example, using that software above mentioned I once developed a Data Model for research in Precision Agriculture. Basically what you do is given a source of datasets in the real word, like Geological Map or Altimetry you take the class that best represent it, like Thematic or Numeric and you give it a name and symbology appropriated for your application domain. You do that previous to the data acquisition and you can use the schema you used in several different projects. Note: The physical data storage is trick tough, by the concept of multi-representation you can have in a database one single Thematic layer represented by vector and/or raster. For Numeric layers is even tricker, it could have Vector (contour map, triangular grid, 3D points) or Raster (regular grid) for the same Layer. How does it sounds? I never rear of any other software that does that. Have you? I am starting work on a data model for Survey Control as part of my efforts at the SurveyOS Project and at my day job. As part of this work I would like to develop some tutorials and templates for data model design that could be used by others in the FOSS GIS arena. These data model patterns will focus on “vendor-neutral” GIS design. I hope to work on other data models as the years pass, and most of these will be survey related. You can play if that software to get some ideas but it is not exactly the neutral solution you want: http://www.dpi.inpe.br/spring/english/index.html I am curious if there has been work like this done before. For example, I’ll need to define some abstract data types for Feature attributes that could be “mapped” to various software platforms and/or programming languages. Again, Not exactly. It answers you first question but not the second one. Any thoughts? It is certainly a cool topic. :) Ivan SLB *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 ___ Discuss mailing list Discuss@lists.osgeo.org http://lists.osgeo.org/mailman/listinfo/discuss
