Doug & the List,
It seems to be a common misconception that the ESRI Shape format is a public format
with a "published structure". Sure, the SHP, SHX and DBF formats are documented.
Where are the SBN, SBX, AVL, and PRJ file formats "publicly" documented? These very
important files contain important spatial indexing, map projection, rendition, legend
and other information that is critical in order to support the format effectively.
As it has been said many times on this list - MapInfo offers their MFAL dynamic link
library on very reasonable terms for folks who need to support TAB files directly in
their application. We also offer a TAB Reader COM library for the same reason. Both
approaches are significantly less costly then developing your own code, even around a
published document.
Jeff
[EMAIL PROTECTED]
>> Richard
>> it's true (no proj. info etc.) - but perhaps a small price to pay for
>> published structure! Come on MI, open it up to all!
>> Anyway, ArcView also uses WOR or in their case APR. So all is set in the
>> APR.
>> doug
>> -----Original Message-----
>> From: [EMAIL PROTECTED]
>> [mailto:[EMAIL PROTECTED]]On Behalf Of
>> [EMAIL PROTECTED]
>> Sent: 01 September 2000 13:48
>> To: [EMAIL PROTECTED]
>> Subject: RE: MI ESRI Shapefile and MapX Compatibility Question
>> Hi Dennis,
>> How does ArcView know how to project the files and display the entities -
>> is
>> the information stored in some higher order of file like a project or
>> theme
>> file or something?
>> Richard Burkmar.
>> -----Original Message-----
>> From: Waardenburg, Dennis [mailto:[EMAIL PROTECTED]]
>> Sent: 01 September 2000 13:39
>> To: '[EMAIL PROTECTED]'; [EMAIL PROTECTED];
>> [EMAIL PROTECTED]
>> Subject: RE: MI ESRI Shapefile and MapX Compatibility Question
>> Richard,
>> The major drawbacks you describe are the result of shortcomings native to
>> Shape files, not MapX. Shapefiles contain neither the
>> projection/coordinate
>> system nor the object style info for the layer, as Mapinfo TABs do. MapX
>> can't read information that isn't there, so it's necessary for the coder
>> to
>> provide it.
>> Dennis Waardenburg
>> GIS Specialist
>> The Environmental Company, Inc.
>> > -----Original Message-----
>> > From: [EMAIL PROTECTED] [SMTP:[EMAIL PROTECTED]]
>> > Sent: Friday, September 01, 2000 5:32 AM
>> > To: [EMAIL PROTECTED]; [EMAIL PROTECTED]
>> > Subject: RE: MI ESRI Shapefile and MapX Compatibility Question
>> >
>> > Dave,
>> >
>> > MapX 4.x can read & display native ESRI shape files using the
>> > 'Map.Layers.Add LayerInfoObject' method. There is a major drawback
>> though
>> > -
>> > you have to know the projection of the data and specify that in the
>> > 'LayerInfoObject' - MapX does not seem to be able to get the projection
>> > from
>> > the shape file itself. MapX also renders the goemetry in the MapX
>> default
>> > styles.
>> >
>> > Richard Burkmar.
>> >
>> > -----Original Message-----
>> > From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]
>> > Sent: 31 August 2000 22:12
>> > To: [EMAIL PROTECTED]
>> > Subject: MI ESRI Shapefile and MapX Compatibility Question
>> >
>> >
>> >
>> >
>> > Does anybody out there know of any information regarding the reading and
>> > editing
>> > of ESRI Shapefiles using the MapX language?
>> >
>> > Cheers
>> >
>> > Dave Williams
>> > Montgomery Watson
>> >
>> >
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