Show all posts by user

MapWindow 4 - Desktop Application : MapWindow Discussion Forum

Go to: Forum List•Message List•New Topic•Log In

Current Page: 1 of 1

Results 1 - 6 of 6

2 years ago

df2006

I'm trying to get a current shapefile of US counties. Tiger 2009 county boundaries are almost what I want as they reflect the latest changes to county data (such as Alaska's 2008 formation of a few new county equivalents), but the borders on this shapefile extend into the water (such as the Great Lakes area), meaning that no islands are shown and the borders are generally long, smooth lines. This
Forum: MapWindow 4 - Desktop Application

3 years ago

df2006

2. Re: County errors

I found a set of shapefiles (from where I'm not sure now) and ran them through with a simplification rate of 20%. Here's what I wound up with ... US Lower 48 counties (original shp file/simplified shp file): 11,178kb / 2,410kb US Lower 48 states: 2,421kb / 423kb US Lower 48 national outline: 1,088kb / 217kkb The states and national outlines were made by combining appropriate counties to
Forum: MapWindow 4 - Desktop Application

3 years ago

df2006

3. Re: County errors

I think the biggest problem is getting updated files that are at close to the same level of precision. What I love above these shapefiles is their size ... I've been looking all over the internet for a set of files to replace these and I've found a few that are much more accurate, but so many times larger that I don't really want to use them. For instance, the Tiger 2009 county boundaries are abo
Forum: MapWindow 4 - Desktop Application

3 years ago

df2006

4. County errors

Just so you know ... the counties.shp files included in the sample projects have at least two errors: 1) It lists Dade County (FIPS 12025), but it has been renamed to Miami-Dade (new FIPS 12086). The Dade FIPS has been retired. I think the shape of the county is unchanged, so all you need to do to fix this is bring up the Attribute Table Editor and change the relevant entry's name and FIPS
Forum: MapWindow 4 - Desktop Application

3 years ago

df2006

5. Re: US outline

Paul, You're step-by-step instructions were helpful, but I couldn't get it to work. A variety of error messages kept popping up. I eventually got what I wanted by using MapInfo Professional to do the job instead (I have that on my PC at work).
Forum: MapWindow 4 - Desktop Application

3 years ago

df2006

6. US outline

I would like to take the "states" shapefile that ships with MapWindow and create an outline of the Lower 48 USA. I tried using one of the included world shapefiles and deleting all but the USA and it gave me the general outline that I wanted, but it did not match the contents of the states shapefile. For example, Florida from the world shapefile looks very different than it does in t
Forum: MapWindow 4 - Desktop Application

Current Page: 1 of 1

Go to: Forum List•Message List•New Topic•Log In

Banner Exchange

Send us your banner logo (160x120) for the space above, and add this MapWindow banner ad to your site:

Just paste this text in your page: