Hi folks -
Having just been through this, I may have a solution, although a bit
kludgey. I had ArcInfo/ArcView grid files which I needed to display in MI.
My first thought was convert to shapefile in AV spatial analyst and import
into MI but there were a few problems. First, the shapefile translation
process generalizes the data a bit, but I could live with that. Second, the
resulting shapefile does not seem to be topologically valid, even for
ArcView. It will display in AV, but that's about it. I had little success
with Universal Translator, Blue Marble's Geographic Explorer or the old
shapelink to bring it into MI - MIF or TAB. AutoCAD 14 allowed it to
translate successfully, but the resulting product was impossible to work
with. What seemed to fail in the translation was that some of the polygons
were too complex to be created.
Another way out was to export the grid from AV into an ASCII file and then
convert that to a point file in MI and regrid it in Vertical Mapper. For
2,000,000 points it wasn't worth it. Neither was writing a reformatter to
turn the ASCII file into a USGS DEM file which could be imported by VM.
The final method was to capture the image as a graphic and then register it
in MI. AV gives a few options in this, but with some pitfalls. Thw WMF
options were useable, but they weren't importable into MI. The BMP option
seemed to be the optimal choice, but the colours came out mangled - on
further checking, this seems to be a documented problem with AV. Working
down the list, I tried PostScript output next (I didn't want to lose too
much resolution in the process) but the output was monochrome. The next one
I tried was CGM Binary (Computer Graphics Metafile). This worked well - it
maintained the resolution and the colours were carried over exactly. The
only twist is that I had to bring this into Corel 7 and export it as a
TIFF. I registered it in MI as a raster image and it worked fine.
My conclusion from all this was my belief that ESRI products were never
designed to share their data easily - everyone and their dog writes export
routines to save in their competitors' format, or publishes file formats -
except ESRI.
Lindsay Giles
Senior GIS Analyst
AXYS Environmental Consulting Ltd
Suite 600-555 4th Ave. SW
Calgary, AB
T2P 3E7
e-mail: [EMAIL PROTECTED]
Main Office: 403-269-5150
Direct Line: 403-750-7671
Fax: 403-269-5245
Visit our web site at http://www.axys.net
-----Original Message-----
From: Tony Elson [SMTP:[EMAIL PROTECTED]]
Sent: Thursday, May 25, 2000 7:38 PM
To: xiaoping gong; [EMAIL PROTECTED]
Subject: Re: MI Help!!! how to translate Arc/Info GRID image to be used in
MapInfo
[]
+AD4- Hello, there
+AD4-
+AD4- I have a Arc/Info Grid image which is a fold of files and I'd like to
be
+AD4- used in MapInfo as either Grid layer or Vector layer. I have tried
+AD4- ArcLink but it seems ArcLink does not support GRID format. It simply
+AD4- skips the GRD section in +ACo-.E00 file where has all raster data.
+AD4- So Is there anyone over there know any solution for that?
+AD4- Thanks in advance.
+AD4-
You could try using ArcView with 3D Analyst if it is available to you. You
can convert the grid to a shapefile which I think if memory serves me
correctly, will create the cells as polygons. The Universal Translator
should do the rest for you.
Can you also not try to convert the grid to a vector file from within
ArcInfo itself, than translate the .e00 fiel?
Don't know if this helps.
Regards
-----------------------------------------------------------------
Tony Elson
GIS Consultant
<< File: ATT00000.txt; charset = UTF-7 >>
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