RE: MI-L MapBasic - Voronoi code

Not free... but you can download a fully functional trial version of Triangulator from Mercator Geosystems. It can: - Create a Triangulation of your pointdata - Create interpolated contour lines and polygons - Calculate aspec en slope - AND calculate Voronoi polygons.

MI-L Microsoft access and mapinfo

Hi, I need some advice. I need a simple and fool proof way of interactively using Mapinfo and MS access. I can think of several ways of doing what i want (click on a mapinfo map object, up pops an access form with my data), but I am also aware that there are right and wrong ways of going about

RE: MI-L Eliminating duplicate Polygons

You could do a loop through the layer and get each object, query the object to find out its centroid co-ordinates and then query to see if any others have the same. Then you can just delete the identical polygons. The mapbasic user's guide or help files are as good a place as any to start

RE: MI-L Area Calculations

This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. Robert, There are formulae out there but be prepared to remember your calculus! Try searching the net for the green formula or the gauss-green formula. As a

MI-L SPECIAL ANNOUNCEMENT MAPINFO / ORACLE USERS

Dear listers: ASPE is an Advanced Spatial Processing Environment which extends the standard Oracle database and provides dramatic improvements to the speed and quality of handling of spatial data. Laser-Scan's ASPE works behind the scenes, automatically adding topologicalintelligence to data;

Re: MI-L Area Calculations

Hi Rob, Assuming (X1,Y1), (X2,Y2),(X3,Y3),.(Xn-2,Yn-2), (Xn-1,Yn-1),(Xn,Yn) are your coordinates in Cartesian domain, your area function would be as follow: 2x Area = X2Y1 + X3Y2 + X4Y3 + ...+YnYn-1 + X1Yn - X1Y2 - X2Y3 - ... -XnY1 Thus, Area = RHS / 2 unit square. Good luck.

RE: MI-L Eliminating duplicate Polygons

This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. Not sure about that! If you know your data and know for a fact that you do not have overlapping polygons then you would be ok - Colin's recommendation in that

RE: MI-L Eliminating duplicate Polygons

Well, how about if you do a check on area, centroid, and number of nodes? If a polygon is a duplicate then the area, centroid, and number of nodes would be the same! In this case you could set up three variables and then look for identical polygons, the attribute OBJ_INFO_NPNTS of the

MI-L Legend to Word

--Boundary_(ID_KYBUsPy3/SycYR3prz7eZw) Greetings, List. Copying and Pasting a Thematic Map legend to a Word document poses a problem. If the legend is long (contains many lines) it is truncated on the Word document. Even if the MapInfo legend is scrolled down to its end, the part in the Word

RE: MI-L Eliminating duplicate Polygons

In comparing 2 regions, one must consider two kinds of data related to shape and to position. Two regions may have identical shapes and not be coincidental in space. The shape elements are many: number of parts, number of nodes, area, perimeter. Positional elements are few in nature, essentially

MI-L Smooth Polygons

Hi Mappers I have read the past discussion re the desirability or otherwise of = being able to smooth a polygon, as well as a polyline, with much = interest. However as a builder of synthetic scenarios for military planning I am = desperate for this capability. Does anyone have a solution

MI-L labeling multi-part polygons

Hello, We have a single map layer that has multiple polygons associated with single records (I guess the term is multi-part polygons). We want every separate polygon to get labeled but even selecting allow duplicate text doesn't work: when we label one of the polygons in a single record, the

MI-L error 34621

hi all. what about the internal error 34621? It happens after the installation of the Sevice Pack 2 - Windows 2000 = professional. Thanks, Marco Motta - Italy - Original Message -=20 From: Darrin Clement=20 To: Mapinfo-L@lists. directionsmag. com=20 Sent: Tuesday, March 12,

RE: MI-L Microsoft access and mapinfo

Hi Russell, What version of MapInfo, Access and Windows are you running? Do you have MapBasic? Without knowing the exact details, here is one suggestion: - Depending on what version of MapInfo you are using, you may be able to use hotlinks on your objects pointing to an Access database which

RE: MI-L labeling multi-part polygons

Hello Darrin, I suggest the following approach: 1. Create a copy of your layer. 2. Disaggregate it (Objects Disaggregate). 3. Modify the style to: fill=3Dnone; outline=3Dnone (the objects become = invisible). 4. Add this newly created layer on top of the original one. 5. Label the newly

MI-L Selecting active window with ProServer

How do I choose a window as the default window for MapGen to operate on after opening a workspace via MapGen. Actually, I guess I need to do this before I open the workspace (MapGen.OpenWorkspace()) because if the last window activated in the workspace when it was saved is a browser, it can't

Re: MI-L Microsoft access and mapinfo

One way to transfer Info from MI to Access: 1. Print the chosen objects id (some id also used in access) to a textfile. 2. Use a DDE from MI to start a VBA macro in Access. 3. Get the Access macro to read the text file. 4. With the id's now in Access, you can update your form. I havent found a

RE: MI-L Selecting active window with ProServer

Alex - The MapBasic help says this - Tip: Setting the Workspace property is the first step to using the MIMapGen object. MIMapGen is designed to work in situations where there is a single map window (e.g. when a web page shows a single map). To begin using MIMapGen, set the Workspace

MI-L Average Values for Adjacent Block

In order to correct for spatial auto-corelation, I want to calculate the average value of a field for adjacent blocks and add that value for each block. An intersecting function used within a single file would seem to be ideal, but I have not been able to figure out how to do this. For a few

Re: MI-L Area Calculations

http://www.efg2.com/Lab/Graphics/PolygonArea.htm Kind regards Uffe Kousgaard www.routeware.dk ___ List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, send e-mail to [EMAIL PROTECTED] and

MI-L Health Boundaries for UK

This message is in MIME format. Since your mail reader does not understand this format, some or all of this message may not be legible. Users Can anyone tell me where I can get health boundaries for the UK from? Cheers. Vinesh Govind Data Technician Leicestershire County Council Room 500

MI-L Joining polylines

Hello All, Can anyone remind me how to join two polylines together please. I have several to do and tried the 'combine' command but still get very small gaps. Thanks Paul.. ___ List hosting provided by

MI-L .tab format proprietary

Hello all -=20 Does MapInfo have any licensing restrictions regarding distributing any = type of .tab format files? Berk=20 ___ List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, send

MI-L Solution Found- Average Values for Adjacent Blocks

Dave Thanks for your advise. I was able to get average values for adjacent blocks by doing a two stage query. Assuming that the blocks table includes polygons for each block: 1. Make a second copy of the file 2. do a query opening both copies of the blocks file. The where condition is that

MI-L symbols to polygons

Hello all, Is there a way I can convert symbols into polygons? I have over a 1000 symbols that represented in my mapper as squares. I would like to convert all of the as region. Is there a way to do this? Thanks, Eric

MI-L Help with creating custom legends in MapBasic

I'd appreciate any advice on the following problem: I'm writing a MapBasic Application to automate the creation of a standard map layout. There is a fair amount of user defined variable information - and in one legend box in particular, the legend text is dependent on what the user enters.

Re: MI-L Joining polylines

Hi Paul! Contrary to common belief (or assumption), the combine command does not affect the geometry of the combined objects, but creates a multiple object of disjunct geometries. So, your very small gaps, or very large gaps for that matter, will remain exactly the same after the combine

Re: MI-L Average Values for Adjacent Block

Add a rowid field, save a copy of your table and run this SQL: select table1.id,table2.id where table1.obj intersects table2.obj Now you have a list of all neighbouring polygons, which you can use for creating the averages. I have used this approach for 2000 polygons and that was very fast, so

MI-L MapInfo calculations

Hello everyone: I have encountered an issue in the calculation of area in mapinfo. My searches in the archive produced some vague references to a possible bug in mapinfo's area calculation (but I thought that had been resolved). I'm using Mapinfo 6.0 to calculate acreage of multipart

MI-L ADMIN: new server

Hello Listers, (I apologize to those that will receive this message multiple times) Directions Magazine is in the process of moving all the GIS discussion lists over to a new mail server and we're going to use a different type of mailing list software. This means that you can expect

MI-L MapInfo not starting

I have a client with several installations of ProViewer that have stopped working - nothing happens if you double click the executable or if you attempt to execute it from the command prompt. I've tried ProViewer 6.0 and 6.5 running under Windows 2000. So then I installed MI Professional; the

MI-L SUMM: Area calculations

Thanks for all the replies (and even a phone call). There were some good sites for reference provided: http://www.efg2.com/Lab/Graphics/PolygonArea.htm http://www.pms.informatik.uni-muenchen.de/lehre/compgeometry/Gosper/TOC.html I ended up using the simplest algorythm based on the following:

RE: MI-L Eliminating duplicate Polygons

At 07:28 AM 3/12/02 -0500, Jacques Paris wrote: In comparing 2 regions, one must consider two kinds of data related to shape and to position. snip--rest of message below This problem is encountered in other GISes, too (e.g., ArcView). Everything Paris says is correct, useful, and insightful

MI-L Creating Points (Skåne, Sweden)

Hello All, Trying to create points (address points) for the county of Skåne in SW Sweden. I have experimented with numerous multipliers (including setting the X and Y coordinate multipliers to 0.1 (to convert to meters) which worked great for my last create points problem (thanks to Warren!).

Re: MI-L Average Values for Adjacent Block

Uffe Thanks again for your advise. I believe that the solution that I sent out was similar but just used the standard sql menu. Dick Uffe Kousgaard [EMAIL PROTECTED] 03/12/02 16:02 PM Add a rowid field, save a copy of your table and run this SQL: select table1.id,table2.id where table1.obj

Re: MI-L Average Values for Adjacent Block

Uffe Thanks again for your advise. I believe that the solution that I sent out was similar but just used the standard sql menu. Dick Uffe Kousgaard [EMAIL PROTECTED] 03/12/02 16:02 PM Add a rowid field, save a copy of your table and run this SQL: select table1.id,table2.id where table1.obj

MI-L cadastral data

As I have not been able to find it in the USGS web, I would appreciate = if somebody could tell me where to find information about cadastral data = in the US and Canada. Who provides them, are they public = domain,standards,... any information related to this would be helpfull. = I would like

Re: MI-L cadastral data

Ignacio García wrote: As I have not been able to find it in the USGS web, I would appreciate if somebody could tell me where to find information about cadastral data in the US and Canada. Who provides them, are they public domain,standards,... any information related to this would be

Sum: MI-L Online 'Line of sight'

Does anyone have experience in doing a 'Line of sight' on a DEM, through an Internet application, just like the desktop VM does. The one hit I got was: We've developed an application using MapXtreme and the Vertical Mapper SDK that performs line of sight against a DEM. We had to get the