Latest Contributions by PeterLecourt

I am using the erase tool to remove the area covered by one feature class (269 sq mi) from another feature class (1617 sq mi). 1617-269 = 1348. However, the result of the erase gives me a feature class that covers 1391 square miles. I expect a little discrepancy, but 43 square miles difference seems like a lot to me. The the only setting for the erase tool is XY tolerance, which I have played with, but it has not helped me. Is there anything that I can do about this? ... View more

I need to combine two vector datasets (representing roads) into a single dataset, and then create a network dataset from the result. I believe I can use the merge tool to combine the two vector datasets. However, I am wondering if I need to carry out any further operations to “link” the two merged vector datasets before creating my network dataset. Will the two merged vector datasets be “connected” after the merge, so that the network dataset created from the merged dataset will allow calculation of routes that travel on roads contained in both of the original vector datasets. ... View more

I need to combine two vector datasets (representing roads) into a single dataset, and then create a network dataset from the result. I believe I can use the merge tool to combine the two vector datasets. However, I am wondering if I need to carry out any further operations to “link” the two merged vector datasets before creating my network dataset. Will the two merged vector datasets be “connected” after the merge, so that the network dataset created from the merged dataset will allow calculation of routes that travel on roads contained in both of the original vector datasets. ... View more

I need to combine two vector datasets (representing roads) into a single dataset, and then create a network dataset from the result (the two road datasets overlap in a number of locations, which should allow for connectivity between them). I believe I can use the merge tool to combine the two vector datasets (contained in two feature classes). However, I am wondering if I need to carry out any further operations to “link” the two merged vector datasets before creating my network dataset. Will the two merged vector datasets be “connected” after the merge, so that the network dataset created from the merged dataset will allow calculation of routes that travel on roads contained in both of the original vector datasets. ... View more

I was just working with a true color composite landsat 8 scene. I adjusted the brightness and contrast to make the image look how I wanted, and saved my work. When I load my saved .mxd, the image is very light and washed out. I didn't alter the image or change any settings before my save, so I can't figure out what is causing the change I am seeing in my image. I attached a snip of how my scene looks now after I load my save. As I mentioned above, it looked good before the save. ... View more