Is there anything in the MITAB api that would allow me to do an "within" type of query? Basically I'd like to be able to select all the polygons within a...
... Andy, You can call SetSpatialFilter() on any OGRLayer (which is a base class of TABFile) to set a query rectangle. Then only features whose geometry ...
Frank, Thanks for the quick response. I also use your shapelib project quite a bit, is there anything similar to SetSpatialFilter within shapelib ? Thanks, ...
... Andy, I think there is a utility program (shputil?) that does rectangular query but I didn't write it and don't know too much about it. The shapelib is...
Frank, I ended up using SetSpatialFilter with an OGRLinearRing and it works great. It filters my selection from 247,203 polygons down to 218 extremelly fast. ...
I am setting a spatial filter as Frank suggested in response to my earlier post. I am setting it with an OGRLineString that has five points in it. However the...
Please disregard my message however for anyone who wants to know or who has the same problem I was having this is what the problem was. When I Spatially...
... Unfortunately SetSpatialFilter() is only available when you use the C++ classes. It is not exposed via the C API which is what we use from VB. -- ... ...
... ... Stephen, Cool, thanks for the fixes! I checked them, applied them in CVS and verified they corrected the problem. No more crash in TABFile::Open(). ...
Hi list, We have to create texts using MITAB getting data (font, height, width, etc) from a database. The database has one record for each text we have to...
... Christina, I confirmed the problem using ogr2ogr to convert these files into tab format. The problem was that mitab_ogr_datasource.cpp enforced a -180 to...
Is it possible to use mitab.dll to write a TAB file without geographical part, that is just a TAB+DAT file? Known workaround: I can create non-geocoded...
... If I remember correctly, there is no shortcut to do what you want. The .MAP file and corresponding objects in memory are created when you create the new...
Hallo everybody. I hope my following massage is my misunderstanding of mitab.dll use in VisualBasic, however, I'd like to report possible error in color and...
Hello, I am a new member of this group. My reason for joining the group is that I have a transferrable copy of MapInfo Corporation's MapBasic Version 7.0 that...
I have successfully implemented much of the c api using C#, but I cannot figure out where to get the information I need to draw the map to the window and allow...
Chris, I don't think that it is in the C API but the info is there because it's stored in one of the file headers. The function within OGR that returns this...
Andy, Thanks for the pointers. I have made the change and it seems to work well. Below is a sample of one of the functions I added to the c api in case anyone...
... Zdenek, I'm not aware of any problems in the areas that you described, those functions have been used before and work for others. There are lots of people...
Hey Do anyone now how to get the distance of an object, similar to the ObjectLen function in MapBasic ? Or now how ObjectLen working, the way I do it for the...
Finn Møller Hansen
fmh@...
Nov 3, 2004 2:47 pm
895
Hi ! Is it possible to create a Symbol with an angle ? Regards Sagent...
... Uffe, No, MITAB is not completely thread-safe. You should use a mutex to serialize access to MITAB.DLL. In theory there shouldn't be *too* many things to...
Guys. I have a problem, I have MapInfo 7.8 and I have oracle 9i Can I connect to the oracle database without converting to another format?? How can I do?? ...
The easiest way is to use Mapinfo EasyLoader tool. ... __________________________________________________ Do You Yahoo!? Tired of spam? Yahoo! Mail has the...
Hi All Is there a way to create the symbols (or fonts) with a given angle ? Thanks in advence. Regards ... Ahora podés usar Yahoo! Messenger en tu Unifón, en...
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