Originally I thought the problem was with objects and/or aliases,
however before I sent in the first posting I though I better do a bit
more investigation, hence the small dataset and very simple code. It
was then that I determined that the FETCH and INSERT commands were both
causing leaks on my
In July last year I logged a problem with MI Support re a memory leak in =
6.5 that had persisted from 6.0. The problem is caused by an INSERT =
statement issued from the MI, MapBasic window or a MapBasic program. The =
INSERT leaks memory at about 210 bytes per call (consistent with your =
loop
Warren,
Maybe it's late, maybe I'm easily amused, but I have to say this was a very
elegant solution! Very nice work!
Ian Erickson
AnalyGIS
- Original Message -
From: "Warren Vick, Europa Technologies Ltd." <[EMAIL PROTECTED]>
To: "Kent Treichel" <[EMAIL PROTECTED]>; "Mapinfo List"
<[E
Hello again Mike,
Well, I'm not a trained plumber. :-)
I don't think the problem is directly related to the 30,000+ record loop. I
run through over 500,000 records almost every day in single runs. That's not
to say there is no leak, but I don't see any errors reported.
The two or so times that
Hello Colin,
Do you have small regions in your data that, when negative buffered, will
yield a null object? i.e. the objects have "collapsed" to nothing.
Regards,
Warren Vick
Europa Technologies Ltd.
http://www.europa-tech.com
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PR
Hello Kent,
The simplest solution (I believe) is to make a copy of your points layer,
close all and then open your newly created copy. Make the layer editable.
Open the MapBasic window and issue the command:
update YourTable set obj = MBR(buffer(obj, 12, 10, "mi"))
Here you are changing each ma
Hi Søren,
I have experienced this problem too. As mad as I am that this bug has
existed for so long, I have just accepted it and used a work-around.
Save the "new_table", then open it. The correct relationships will be
restored.
Cheers,
Simon
---
Kent
I would experiment with creating buffers around the centroids using a smoothness of 4
points. You may have to rotate the results.
Steve Ware
>>> Kent Treichel <[EMAIL PROTECTED]> 11/01/2002 1:47:45 >>>
I have a table of centroids and am looking for a way to turn each
centroid into a squar
Chris,
I agree completely with Jason Adam's explanation of your projection problem.=
=20
=A0Unfortunately, I'll bet that you didn't receive a project or text file wi=
th=20
the GIS Data Depot download. =A0Open up the e00 file with your favorite text=
=20
editor, and you should be able to find t
It's a matter of choosing the best tool for the task. The PDF Writer
works better in Excel or Word, while using the Distiller produces
outstanding maps in PDF files.
On 10 Jan 2002, at 9:52, [EMAIL PROTECTED] wrote:
> Has anyone had issues creating PDFs from MapInfo with Adobe PDF Writer?
>
Dan,
Give me a call at the 800#, Ext 10 and lets's discuss what you will
be doing. A couple ofsolutions come to mind, but they all would be final
result specific.
Best,
- Original Message -
From: <[EMAIL PROTECTED]>
To: <[EMAIL PROTECTED]>
Sent: Thursday, January 10, 2002 2:03 PM
Subje
G'day all
This request is a little of the mapInfo-L subject, but here goes...
I have to make a shortb Powerpoint presentation for a conference and I =
am looking for a short movie of the earth as a globe rotating in space. =
I am looking for a geographic, rather than a political view, of
I need to purchase basemaps for a number of project areas (100 or so project
areas).
The areas of interest can range from the size of a building 1000 sq metres to
areas covering 100 sq Kilometres. Obviously not one scale will be suitable for
all areas of interest. A 1:50 000 map might be suita
Chris-
I suspect that you have converted it incorrectly. If the files are in Shape
or E00 format, you first have to determine their original projection before
converting them. You'd get that info in a .prj or .txt file that
accompanies the data you download. Try this: Convert to their proper
pro
Thanks all. I feel a bit silly now.
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addressee. It may contain privileged and confidential information. If you
are not the person for whom it is intended, you must not copy, distribute or
take any action in reliance on it.
Ollie,
You don't need an MBX as there are arrow head options in the line style
chooser.
Just double click on the (editable) polyline you want to change and then
pick a line style with an arrow head on it.
Regards
Richard
-Original Message-
From: [EMAIL PROTECTED]
[mailto:[EMAIL PROTEC
Is there a way to be able to have arrowheads on one end of a polyline? I
have seen reference to a utility called ARROWS.MBX in the MapInfo archive,
but can't find it on the directions mag download site.
TIA
Ollie.
This Electronic Transmission is intended only for the attention of the
addresse
I'm new to the list and I've tried to search the old messages but frankly,
I'm not sure what keywords to use to search for with this issue.
I downloaded some Datasets from the http://www.gisdatadepot.com/ website.
(Precisely, the Ontario Road and Rail line files).
The data was in ARC format and
Convert 5 miles (half your square side) in your table XY units. If your
table is in degrees, change to a pertinent projection. If the projection
unit is meters, that value will be something like 8045
In the MBW write and run
Update your_table set obj=mbr(createline(centroidx(obj)-8045,
centroidY
Well,
I figured it out. When you set up your thematic map (create grid) you
set the actual CoordSys for the mapper window (prove this by putting in
'Set Map CoordSys Earth Projection 1, 62' after the 'Map From' statement
then doing the Affine Transform).
Thus putting an Affine Transform in the
The answer was a simple one that I overlooked. Thanks Eric.
summary:
MapInfo will do it. Is NAD 83 currently the projection specified?
If not, first save it specifying the projection as NAD 83.. then open it
back
and and save it spcifying NAD 27. Then make new columns and update
them with Centr
I have a table of centroids and am looking for a way to turn each
centroid into a square region, approximately 10 miles aside, for the
purposes of thematically mapping it.
Any ideas?
--
Kent Treichel
Research Analyst-GIS
Tax Research
Minnesota Department of Revenue
600 North Robert St.
St. Paul,
Has anyone had issues creating PDFs from MapInfo with Adobe PDF Writer?
Everytime I go to create a PDF from a MI layout, my symbols (MapInfo Arrows
set) becomes a rectangle.
I recently converted over to Windows 2000 and I think perhaps that might be
the root of my problem.
Does anyone have any
I have done some testing on your problem and came to the conclusion that is
the PACK command that changes the charset. It is not because the table has
been emptied, or because it was edited and saved; only a "pack" as a MB
statement or a MI menu command will do it.
There is some "justification" t
The lengthy Christmas Break has helped me to forget how to complete the
following task that I remembered as being fairly straight forward.
I have two tables one table has polygon's (London Borough's) and the other
has polylines (Bus Routes). The bus routes table has several fields to it
where on
Any answers to this question will tend to have "can", "worms" and "of" in
there somewhere :-)
Whenever you refresh a DBMS table what happens is that MapInfo reruns the
query used to create it in the first place and overwrites what it had
before. You can increase the refresh speed in two ways - ma
Hi List,
I have a simple (I hope) MB-Oracle question
I have a MB application which connects to a remote Oracle database, links
to the required tables, saves them in MapInfo format on the local machine,
and closes the connection (the amount of data is not so great). The idea
being that th
David M Haycraft wrote:
> It sounds like you could use my free MapBasic tool SETSCALE.MBX.
Yes, that seems to cover my problem exactly. Thanks for the hint. I
will try the program.
Andreas
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List,
I am trying to create a buffer in MapBasic that falls inside a polygon. To
do this I need to create a buffer with a negative value, when I use the
buffer tool in MapInfo and enter a negative value all works as expected.
However, when I try to recreate this in MapBasic I get a warning messa
Hi Laurence,
You should definitely log this errornous behaviour as a bug with MapInfo,
if you haven't already done so.
Imagine if MI Pro tried to be just as "smart" by resetting the
projection/coordsys (to lat/long) if the table was (accidentially) emptied
!!!
Best regards / Med venlig hilsen
L
Soren,
I have experienced/discovered this too in the past, and have reported it
to MapInfo, they say it is due to the way that MI handles one to many
relations (sorry cant find the correspondence), but I think its just a
bug in the info tool!! or at least a design feature they need to sort
out.
Dear list,
When I make a SQL join like:
SELECT *
FROM MI_table, RDBMS_table
WHERE MI_table.id = RDBMS_table.id
INTO new_table
and add new_table to the map, I sometimes get odd results with the Info
Tool. This behaviour occurs when the RDBMS_table contains two records with
the same id (e.g. two
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