MI MapX: CreateArc question
A question for any trig whizmos out there: The mapx CreateArc functions uses the parameters: point 1, point 2, angle, distance But I want to create arcs using more COGO like parametres such as: arc radius arc length chord length azimuth arc delta Any pointers to the relationships between the COGO-like parameters and the MapX CreateArc function parameters? Thanks, John Brosowsky -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
MI more on thin clients
Some more info and another questions: Some from the list have suggested storing the map data locally, and using the remote server for processing only. This may me the way to go, but if so we loose some of the benifits of using thin clients - mainly that we would still have to maintain a local server at each office. We've fiddled with network settings, and see that the thin client now out performs (in timed tests of common functions) both running MI off a PII300 64 MB RAM with data locally on that machine, and running MI of the same PC with data on our file server. However, it failed one test - we have a test mb app that draws 5000 points to the screen and times it. On one thin client it runs faster than a PC. Run it on two thin clients at the same time and it runs much slower. Now the question: Is this a processor thing? We've got dual PIIIs with much RAM in the test server, and we can boost to quad processors and up the RAM if needed BUT - can MI make use of additional processors? There was some discussion on the list a while back about this - looks like it cannot. Can anyone clarify how MI uses (or does not use) multiple processors? I'm especially interested in the most current version of MI (5.5 or beta 6?). I'll let all know what I find as we continue our testing. John -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
MI on thin clients
Greetings list, My company is considering moving to a thin client model with a server residing off site that all of our various Midwest USA branches could access via fast (DSL or cable modem) connection through an ISP. We tested this scenario today by hitting MiPro and map data on a server from thin clients across a 256K DSL ISP connection. Results were less than impressive. The test server was dual processor PIII 500 MHz with 512 MB RAM. Connection to thin clients was over 256K DSL line through an internet service provider. MapInfo was MI4.5.2. Anyone have any luck with this type of scenario - any pointers or suggestions from you network junkies out there? Thanks John Brosowsky -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
Re: Responses to MI Street Layers for Texas and Florida
Brad, Our company, GeoComm Corp, does this but I don't think we've hit anything in Texas or Florida yet. We build our streets from diff. post processed GPS steam data from our field vehicles. We have done counites all over the midwest - mostly in MN, SD, ND, IA, MO, IL, NE, and KS. John Brosowsky [EMAIL PROTECTED] -Original Message- From: Brad Mathews [EMAIL PROTECTED] To: '[EMAIL PROTECTED]' [EMAIL PROTECTED] Date: Thursday, December 16, 1999 1:11 PM Subject: Responses to MI Street Layers for Texas and Florida Thank you all for your responses and suggestions. As I feared, everyone is using tiger based data with no spatial correction. Are there any companies other than Etak, Thomas Bros and NavTech that are creating positionally accurate road base layers? I need something accurate enough to use for in-car navigation, though that is not my application. Does anyone know of current or future projects with this goal in mind? Thank you, Brad Mathews Technical Director VISTAinfo Property Disclosure a division of VISTA Information Solutions, Inc. (Nasdaq VINF) (408) 261-6450x206 (408) 261-6454 (fax) -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
MI I want a sample .BNA
Anybody got a .bna file lurking around anywhere they can e-mail to me? I want to compare to some stuff I've got. Thanks, John Brosowsky -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
Re: MI Inserting nodes
Try my node_space.mbx - available at mapinfo-l shareware archive. This will insert nodes into a polyline object at an interval approximating a user specified distance. Its approximate because its optimized to produce even node spacing. More about that in the docs that are with it. I use it to get better results geocoding - whacky node spacing can lead to poor geocoding. Let me know if you have questions. John Brosowsky -Original Message- From: Ian Macey [EMAIL PROTECTED] To: 'MI List' [EMAIL PROTECTED] Date: Thursday, September 30, 1999 5:39 AM Subject: MI Inserting nodes Is there a way either using MI 5.5 or Vertical Mapper, to select a polyline and insert nodes say every 4.8 metres along the line? Many thanks IAN --- Ian Macey Dreweatt Neate mailto:[EMAIL PROTECTED] http://www.dreweatt-neate.co.uk Telephone: 01635 263050 Facsimile: 01635 263090 ** EMAIL DISCLAIMER: The information in this e-mail is confidential and may be legally privileged. It is intended solely for the addressee and access to the e-mail by anyone else is unauthorised. If you are not the intended recipient, any disclosure, copying, distribution or any action taken or omitted to be taken in reliance on it, is prohibited and may be unlawful. If you have received this email in error please notify: [EMAIL PROTECTED] ** -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
MI Routing Algorithms
Any got any pointers to fast routing algorithms? At this point I'm not looking for third party add-ons. I'm looking for a couple pages of text outlining exact steps required for implementing routing. I've seen the algorithm (dykstra's method I believe) in the back of the ArcNETWORK manual for the ArcInfo extension. I've implemented it in MB to find it can be painfully slow (I know, I know, I'll have to handle my routing in some external low level function to get speed, but hey I just playing). Anyways, anybody got any pointers to some basic routing algorithms? Any good books out there? John Brosowsky -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
MI MapX and Windows CE
Looks like MI does not support Windows CE for MapX. But they do not discourage anyone from trying it either. Has anybody tried this with any success? John Brosowsky -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
Re: MI Summary: Need to find an expert on wireless GPS
slight correction - GeoComm developed a piece of software that can integrate the cellular location into an E911 network. The actual angle of arrival location derrivation hardware was built and patented by KSI Inc. out of Annandale VA (www.ksix.com). Our successful E911 integration was accomplished by a consortium of companies: KSI, Rural Cellular Corporation (RCC), CML Technologies Inc., Datamaster, and GeoComm. KSI reports that vehicle tracking is a possible use for this technology, but this is not anything GeoComm developed or offers. Anyone interested in this new technology should check out KSI's web site. Also, while the new technology could reduce the cost of a tracking device to whatever your cell phone costs, the location derrivation network must already be in place - so there is still a high cost. This could work in the future if it becomes standard for cell sites to be equipped with this type of gear. GeoComm currently offers vehicle tracking hardware that can interface to conventional or trunked VHF or UHF radio networks. We also have a unit that can connect to a cellular or PCS phone. John Brosowsky GeoComm Bill wrote: John Brosowsky [EMAIL PROTECTED] described GeoComm's MapX-based tracking products (http://www.geo-comm.com/), which include a unit that can connect to a cellular transceiver, but he points out the main problem with cellular systems, which is cost. However, GeoComm has just developed new technology that can locate cell phones without GPS. The new system involves setting up directional equipemnt on cell towers which can monitor a wireless phone's service channel and report its location as often as desired. He reports that the prototype system is accurate to 50 ft, and can work where GPS can't (like in buildings). It elimintates the cost barrier because the cell phone doesn't have to make a call to report locations; it just has to be turned on. -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
Re: MI - fitting a straight line to a curve.
Tom, I've written some MB code to do this, but its bulky and complicated to run. Someday I'll clean in up and perhaps get it on MapInfo-L. If your interested my VERY general algorithm is this: 1.Add evenly spaced nodes to both tables (the table I want to modify, and my base table) at a small interval - so both tables are heavily noded. 2. Step through each node in each polyline in the table I'm modifying - and perform a proximity analysis to nodes in the base table. Select the closest base table node found in the prox. search and, if its within a preset tolerance, snap your modify table node to it. 3. Step through all nodes in all polylines in your modify table and delete any duplicates. Run a node thinning program if desired. We use this program to adjust existing street data (tiger or streetinfo or whatever) to fit nicely post-processed GPS stream data collected by our field guys as they are driving and collecting other data. John Brosowsky GeoComm Corp. -Original Message- From: Tom Manson [EMAIL PROTECTED] To: [EMAIL PROTECTED] [EMAIL PROTECTED] Date: Wednesday, July 14, 1999 1:51 PM Subject: MI - fitting a straight line to a curve. Dear list, I have a little query regarding fitting a straight line to an arc (line with a bend). We extract data from one source, and wish to overlay it to existing sewer records. However, since some of the sewers have bends in them, and we only have a start and finish point, is there any way to 'bend' the imported data to match up with the original sewer records? In both sets of data the start and finish coordinates are the same, if that helps. Tom ps I know it's possible to add nodes and do the job manually, but I was hoping there may be a quicker way! -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED] -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
MI - AGIS
I've got some AGIS map files, circa 1990. I would like to get them into mapinfo. Anyone know anything about AGIS or how to translate? John Brosowsky -- To unsubscribe from this list, send e-mail to [EMAIL PROTECTED] and put "unsubscribe MAPINFO-L" in the message body, or contact [EMAIL PROTECTED]
