MI-L Cluster Mapping

Dear All We want to produce some cluster mapping and are after some advice of how to do this, and any pitfalls they may be. We have a table with points in and want to see where there are clusters of points. Any thoughts would be appreciated. Regards Andrew Tracey Information Support Officer

RE: MI-L Cluster Mapping

Andrew You may want to look at the Crimestat tool as produced by the National Institute of Justice in Washington DC (link below). The user guide is quite heavy going but we used to clustre analysis a table of points. http://www.icpsr.umich.edu/NACJD/crimestat.html Good luck Robin Burchfield

MI-L Polygon dimensions when traversing in a particular direction

Hi, I'm stuck (again).. I want to be able to find the optimum and minimum dimensions of a polygon as it is traversed in a particular direction. (so i cant just use MBR dimensions). this is a tricky one to explain in words but for any given polygon and a particular direction-of-travel

MI-L DWg to Mapinfo6 Data problem

Hello all, I want to know from you Wether Internal data Attached to a map in Autocad Map2000 will come when it is trasnfered to MIf or Tab. I have created a polygon topology in Acad Map and attached data to the polygon topology. Only onle layer apart form 0 Layer, in which the Map, Toplogy

Re: MI-L Cluster Mapping

Hi Andrew, You may also wish to have a look at the following references on the topic: 1. Computational Statistics Handbook with MATLAB by Wendy L. Martinez, Angel R. Martinez http://www.amazon.com/exec/obidos/ASIN/1584882298/qid=1102421796/sr=2-1/ref=pd_ka_b_2_1/104-8703599-6163933 This book

MI-L MapInfo Grid - minimum cell size limitations

Hi there, Wondering if anyone can help. I am currently gridding up some multibeam sonar data with MapInfo 7.0. I have done this before with some success. The problem that I am encountering is that I have data that was collected at a resolution of 2.5 metres. So, I have a huge point set with

MI-L Getting the centroid of a group of points

How do you go about getting the centroid of a group of points? Brian Van Druten Forestry Technician Alligator River NWR Manteo, NC - List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe,

RE: MI-L Getting the centroid of a group of points

How do you go about getting the centroid of a group of points That's depends on where you want the centroid :) You can use the average point coordinate, or the center of the MBR (minumum bounding rectangle), or . I belive the way MI finds a centroid of a GIS object, is first getting the

MI-L Ang. MI-L MapInfo Grid - minimum cell size limitations

Hi Scott! Although I'm unsure what you mean by 'gridding' I would like to point out a possible explanation. Behind the scene, Mapinfo uses its own grid which simply put can hold one, and only one, coordinate pair per cell. The grid has a finite number of cells and the absolute size of the

RE: MI-L Getting the centroid of a group of points

Often (Median X coordinate , Median Y coordinate) is used. Rinus Deurloo University of Amsterdam The Netherlands. == -Original Message- From: Jakob Lanstorp [mailto:[EMAIL PROTECTED] Sent: 07 December 2004 14:50 To: [EMAIL PROTECTED] Cc: [EMAIL PROTECTED]

RE: MI-L mapinfo, oracle spatial and mastermap

Daniel, Have you looked at the OS website? It contains lots of presentations, some which include the use of Oracle http://www.ordnancesurvey.co.uk/oswebsite/products/osmastermap/seminars/mmse minar-nov03.html There's also this presentation from the Oracle SIG

Re: MI-L Getting the centroid of a group of points

On Tue, 7 Dec 2004 [EMAIL PROTECTED] wrote: How do you go about getting the centroid of a group of points? If you search Google, you'll find lots of hairy math and several ways to do this, but if you just want a simple and reasonable solution, try using the centroid of the polygon made by

MI-L compile a Mapbasic program

Hi everybody I don't understand why, when I compile a Mapbasic program, I always get a MBO file and not a MBX file. The structure is : Include ..\inc1.def Include ..\inc2.def Declare Sub Main Declare Sub sub1 Declare Sub sub2 '== Sub Main OnError Goto ErrorMain

RE: MI-L compile a Mapbasic program

Christophe It could be because of your Exit Sub which can only be issued in a sub-procedure. Therefore, MB is interpreting your Sub Main as a sub-proc - so the module is treated as a sub-module and not the main module. I don't see the need for the exit sub here - it is superfluous. It can be

Re: MI-L compile a Mapbasic program

Hi Christophe, I compiled your program without the includes without any problem. So your def files need som attention ;-) (And Exit Sub _is_ the statement you need before the errorhandling) HTH Søren Breddam -Oprindelig meddelelse- Fra: Christophe Brabant [mailto:[EMAIL PROTECTED]

MI-L Shade statement - Pie Chart Map problem

Hello, I have a Mapbasic program which generates pie-chart diagrams on a group of objects. Simplified is the command like this: Shade vartablealias With col4, col5, col6, pie Angle 90 Max Size 1 Units cm At Value 1000 vary size by SQRT border

MI-L Directories

All, I am writing a mapbasic tool that will generate a lot of files, and I want these to be placed in a user specified directory. Is it possible to give a user the option to specify a directory to place files in using MapBasic? I have seen it used in other tools, but don't have the source

RE: MI-L Directories

I had to do this previously, I browsed mapinfo-l archives and figured how to do that. You have to define some constant and the 2 win32 api function. The FolderOpenDlg is a mapbasic function calling all the necessary win32 stuff. (mypath=FolderOpenDlg(my title)) declare function

MI-L can not print translucent raster layer

Hi to all, Can MI pro 7.0 or 7.5 print translucent raster layer as it is seen in the screen? Thank you Sergi Gàmiz Ribelles - List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL

RE: MI-L can not print translucent raster layer

Sergi Check out this document http://www.mapinfo.com/static/files/techtip/1064856331921/TechTips_PrintingI nPro.pdf, it should be of help in setting up your map for printing Kind Regards Jerry O'Sullivan Jerry O'Sullivan GIS Consultant ESBI Computing Ltd Stephen Court | 18-21

MI-L Export Workspace to GeoTiff

Hi list, I have a topographic map in MapInfo. The workspace is created from several layer and with thematic coloring. What I need is to export the MapWindow or the Workspace to GeoTiff (or any type of geocoded image). I need the geocoded version of the Workspace because I want to use it as the

Re: MI-L Query and data manipulation speed .dbf vs .dat

I have not really done any testing. But I use MapInfo DBF files a lot and have not noticed any difference in speed compared to when I am using native MapInfo (DAT) files. Steve Kalmbach The Grand Rapids Press [EMAIL PROTECTED] 12/03/2004 09:39:31 AM Just curious if anyone has compared the

MI-L Map Basic Runtime Error

Hello, All Keeping in mind that I am New to MapBasic. I am trying to update an existing table from an new table (Called AC) where conditions exist in a column called ACTION in the new table. I have written the following program which compiles ok but when I run it I get the following error.

MI-L MapBasic Null Value

Dear List- I have an integer variable which is to be user assigned in an interface during runtime. I want my program to check if that value is left blank/null. Using an If...Then statement, how do I tell MapInfo to identify that the variable is empty? I can't use zero for the check obviously,

Re: MI-L Getting the centroid of a group of points

I have used MapBasic code in a program to create a center point for a delivery route using the median of all the unique route address longitude coordinates for the route's center longitude coordinate, and the median of all the unique route address latitude coordinates for the route's center

MI-L Center of Mass

Hello Again- Does anyone know of a way to calculate the center of mass or gravity of a region object? Thanks -John - List hosting provided by Directions Magazine | www.directionsmag.com | To unsubscribe, e-mail: [EMAIL

Re: MI-L MapBasic Null Value

On Tue, 7 Dec 2004, John Polasky wrote: Using an If...Then statement, how do I tell MapInfo to identify that the variable is empty? I can't use zero for the check obviously, but is there a MapBasic code that identifies a null value? No. A blank is the same as a zero to MapInfo.

MI-L MapBasic TargetSet Yes/No

Is there an easy way for MapBasic to determine if a target object has been set? The only way I can think of doing it would be to trap an error. Is there a better way. Cheers Steve Smith email: [EMAIL PROTECTED] Australian Bureau of Statistics (ABS) Geography/Spatial Consulting and Mapping

MI-L slow operation with snap in Version 7.5

Hi all, A client is having a real slowdown in MapInfo when snap is switched on in Version 7.5. A circle appears on the screen when snap is switched on and it may take a few seconds for the mouse to move. I think he said the circle was being left behind. Turning snap off solves the

MI-L FW: SAVE LAYOUT WINDOW AS JPEG - FILE SIZE LIMITATIONS

Hi All, Can any of you mapinfo guru's advise of the maximum file size allowable to output a layout to jpeg. I am attempting to create a 300dpi jpeg file. Window size is 914mm/1600mm ; 10794/18897 pixels. I get an error message: 0# file not registered for access. I have

MI-L Ang. MI-L slow operation with snap in Version 7.5

Hi Robert! The circle you see is a new feature in MI Pro, it shows the snap radius, in your case 5 pixels. Very useful when snapping to proximate objects because you get a feeling for how much you need to zoom in in order to get the snap tolerance below the distance between the object. But