15 replies to this topic

[jennastics]

Hello again, board! I have a question and hope someone can walk me through it...

I have an area (polygon) and within that area are streets, houses, other features, etc. Is there a way to exclude certain features within my original area to create a shapefile of the areas BETWEEN the features I don't want included?

Thanks! This board is very helpful!

[jennastics]

Does that make sense?

[François Goulet]

Does that make sense?

I'd like to help you, but I'm not sure I understand... Looks like you'll need some Analysis Tools from ArcToolbox (Clip, Extract, Intersects, ...), but I don't know which one to suggest... Maybe an example?

[Jimbo]

Couldn't you just select the features by using a SQL command then deleting them in ArcMap?

[jennastics]

Couldn't you just select the features by using a SQL command then deleting them in ArcMap?

Hmmm. I'm not sure. I need all the features to remain on the map, I just need to create a shapefile of the areas BETWEEN the houses and streets and other features WITHIN a "footprint" area called Areas Available for Development. So, the open areas... you know?

[jennastics]

Does that make sense?

I'd like to help you, but I'm not sure I understand... Looks like you'll need some Analysis Tools from ArcToolbox (Clip, Extract, Intersects, ...), but I don't know which one to suggest... Maybe an example?

Yep. I'm thinking this is the way to go... but I'm not TOO familiar with this process, and from what I've seen, it only lets me clip one thing at a time.

[François Goulet]

Yep. I'm thinking this is the way to go... but I'm not TOO familiar with this process, and from what I've seen, it only lets me clip one thing at a time.

In that case, there's a Batch Clip script on the ArcScript page.

Could be what you need...

[jbl]

If I understand you you can
Set the feature layer for editing, select the desired and then export the selected features as a new .shp file

or

Select the desired features so that they fill the entire ArcMap window, then export 'all features in view extent' as a new .shp file.

If I didn't understand the problem, sorry about that.

[klacefield]

It sounds like you want to use the erase tool, not the clip tool within ArcMap. The erase tool is only available with an ArcInfo license of ArcMap. However, if you only have an ArcView licence then there appears to be help in the way of a downloadable script (http://arcscripts.es....asp?dbid=14625). I have not tried this script as I have an ArcInfo license, but that is what I found after a quick search.

Good luck,

[jennastics]

It sounds like you want to use the erase tool, not the clip tool within ArcMap. The erase tool is only available with an ArcInfo license of ArcMap. However, if you only have an ArcView licence then there appears to be help in the way of a downloadable script (http://arcscripts.es....asp?dbid=14625). I have not tried this script as I have an ArcInfo license, but that is what I found after a quick search.

Good luck,

This is, fortunately, EXACTLY what I needed. Unfortunately, I'm just having funky issues with my liscense. Siiiiiiiiiiiiiiiiigh. But, I'm in contact with ESRI support and getting it straightened out. Thanks, again!

[jennastics]

Also, until I'm able to get this licensing problem fixed, I am just manually digitizing the areas for now.

[ceicher]

Couldn't you just select the features by using a SQL command then deleting them in ArcMap?

Another idea similar idea. Use "Select By Location" to select the features you want to delete, then open the table(s) in ArcMap, start editing, and delete the selected features.

[ProMapper]

Hello again, board! I have a question and hope someone can walk me through it...

I have an area (polygon) and within that area are streets, houses, other features, etc. Is there a way to exclude certain features within my original area to create a shapefile of the areas BETWEEN the features I don't want included?

Thanks! This board is very helpful!

Now you have an area polygon and if all the features on top of it, as you said, roads, houses, other features are area features, you can merge all these features to create another area feature. Then you can just exclude the new area feature from the main area polygon. But if the roads and streets are not area feature then it is not going to work.

Anu
http://www.mapsandlocations.com

[Hans van der Maarel]

As usual I'd like to present an alternative to Arc

The Clipper in FME (available in all editions) does exactly this.

[jennastics]

Hello again, board! I have a question and hope someone can walk me through it...

I have an area (polygon) and within that area are streets, houses, other features, etc. Is there a way to exclude certain features within my original area to create a shapefile of the areas BETWEEN the features I don't want included?

Thanks! This board is very helpful!

Now you have an area polygon and if all the features on top of it, as you said, roads, houses, other features are area features, you can merge all these features to create another area feature. Then you can just exclude the new area feature from the main area polygon. But if the roads and streets are not area feature then it is not going to work.

Anu
http://www.mapsandlocations.com

What is the tool to merge them? Is it union?