Latest Contributions by SepheFox

Actually, I didn't know it could be a dataset, so thanks for that info, but what Nick's trying to use is not clear, since his script tool dialog says the input is a shapefile, so I would think he would want his workspace to be a folder. ... View more

I need you to mark your other question as answered also:Why Height Restriction is not working. Thanks! ... View more

The first thing I noticed is that your workspace is set to a feature class inside a gdb, as Susan is saying. The workspace should be either a GDB or a folder. ... View more

What about creating centroids from your survey polygons, then use a spatial join to join data from your lease polygons to the points. You could then join the points layer back to the survey polygons, and now you have the lease data in your survey polygons. This would enable you to dissolve on the lease data, as Dan suggested. After that, you could use the Symmetrical Difference tool to find areas that are mismatched between the two layers. Actually, maybe you could just use the symmetrical difference tool on it's own, if the leases are not adjacent. ... View more

Have you seen this data from the world wildlife fund, HydroSHEDS | Pages | WWF? It says it is consistent for global scale analysis. If you want smaller boundaries, you'll have to go looking individually, as Dan said. Here's a link for US data, .USGS Water Resources: About USGS Water Resource. ... View more

I don't know why I read that as exporting to PDF! Just what I'm used to doing, I guess. ... View more

I believe you would just use the field name"P500*". That's a star to donate the wildcard. ... View more

I'm not really clear on what you're trying to do. Do you want the fid in the same order as the other field?​ ... View more

Hi Ditlev, the scale that you're looking for is not really clear. For example, the US has watersheds defined at several different scales defined by HUC codes, or stream order. A problem right away, is that different countries or regions will define this differently. See this wikipedia article for more explanation: Hydrological code - Wikipedia, the free encyclopedia ... View more

Hi Yulun, shapefiles also have a size limit of 2GB, which you may exceed with so many features, so I would recommend exporting to a geodatabase. You might also try using the Join Field tool (ArcGIS Help 10.1), and only joining the fields you are interested in. This will reduce the amount of information and therefore file size. ... View more

Hey Barry, I just noticed you have your question posted in ArcAPI. This is a place for java developers, and unlikely to get you the answers you need. I suggest moving it to New to GIS​. To move it, click on the title to open the question outside of your inbox, and select move from the right hand menu. ... View more

Hey Manu, straight from the help files, the syntax is: exportToPDF (out_pdf, {page_range_type}, {page_range_string}, {multiple_files}, {resolution}, {image_quality}, {colorspace}, {compress_vectors}, {image_compression}, {picture_symbol}, {convert_markers}, {embed_fonts}, {layers_attributes}, {georef_info}, {jpeg_compression_quality}, {show_selection_symbology}) Have you tried this yet? Has it given any problems? If you don't understand the parameters, you can look at the help file: ArcGIS Help 10.1 ... View more

Have you had a look through the known errors for HEC GeoHMS? HEC-GeoHMS Known Issues ... View more

Hi Barry, that is a lot of questions. For question 1, yes, it's a function of map projection. When you load the first layer into a map project, ArcMap will focus on that layer, and the projection of that layer will become your data frame projection. After that, layers are positioned in relation to that layer. If they have a different projection, they will be re-projected on the fly to the same projection as your data frame, but their original projection has not changed. If they have no projection, ArcMap will ask you to define the projection. If you do it wrong, they will appear way off the map somewhere. You can always look at the projection of your data layers, by looking at the the source tab in properties. If their is no projection assigned, you can make a guess based on the numbers listed for the layer extent. For question 2, address data is generally geolocated, that is, those addresses are given coordinates based on the projection of the layer. You will notice that shapefiles have a.prj file. That is here the projection info is stored. Question 3, Raster layers are cell based, with each cell, like a pixel, having a values, and the layer being a grid of cells. Vector layers are made up of points with pairs of x/y location. Those points may be joined to gether to form lines or polygons. Have a read of this link. It might help: A Framework for GIS Modeling ... View more

The error seems to indicate that the syntax used for the parameter is invalid for the parameter type. Looking at the help for setting spatial reference (ArcGIS Desktop), the syntax is supposed to be like this: # Create a spatial reference object using a factory code # sr = arcpy.SpatialReference() sr.factoryCode = 3857 sr.create() ... View more