Tagged Questions

ArcGIS 10.0 is a specific software version of ArcGIS.

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12
votes
3answers
5k views

Layers having the same coordinate system should overlap, but they don't. What's wrong?

I put 4 different layers into my ArcMap document, but only one of them will show up on the map! I should be seeing the other 3 layers as well. When I do a Zoom to layer, I can see one layer, but I ...
9
votes
3answers
7k views

How to edit or convert ArcGIS 10 layer style to a SLD's file

Greetings everyone, I am putting together a GIS server using GeoServer and need some help with importing my layer styles from ArcGIS 10 to SLD format. I have one layer in ArcMap properly symbolized ...
14
votes
3answers
1k views

Port “Producing Building Shadows” Avenue code to ArcGIS 10

Whuber provided an answer here Producing building shadows? which required using Avenue code. Any idea how to make it work in Arc 10? Thanks in advance.
4
votes
3answers
1k views

How do I include a variable in the where clause of arcpy.Select_analysis?

I am trying to loop through a shapefile, selecting each feature in turn and copying it to a temporary shapefile to by included in a union analysis. I'm using a cursor to find the ID name for each ...
29
votes
7answers
3k views

How can I effectively debug arcpy Python scripts?

I have written many Python scripts using arcpy in ArcGIS 10, and so far my only means of debugging is restricted to printing messages to the geoprocessing results window using arcpy.AddMessage(). Are ...
16
votes
3answers
806 views

Packing Polygons within polygon

I have a Boolean raster. In the grey areas of the raster I would like to fit a given size polygon within a contiguous extent. Basically, I have an irregular polygon, and i would like to "fit" a ...
12
votes
5answers
4k views

How to get the extent of each polygon in a shapefile?

In arcgis 10 and python I want to get the extent (xmax, ymax, xmin, ymin) info of each of the polygons in a shape file. I can get the extent of the whole shape file using ...
16
votes
3answers
2k views

How can I calculate the average width of a polygon?

I'm interested in examining the average width of a polygon that represents the road surface. I also have the road centerline as a vector (which is sometimes not exactly in the center). In this example ...
7
votes
4answers
1k views

How to reorder fields (permanently) in a file geodatabase

Using ArcGIS 10.0, is it possible to reorder the fields in a file geodatabase, and have the order persisted to the database? We considered exporting to XML, and writing a parser to change the field ...
8
votes
3answers
2k views

How to find the locations of the highest values in a raster?

Using ArcGIS 10, I have a raster where I would like to find the pixel with the maximum value in the raster and return its location (center of pixel) in decimal degrees. I would like to iterate through ...
6
votes
3answers
639 views

How can i split by attribute in ArcGIS 10?

I'd like to split a single shapefile to multiple shapefile by attribute. I found ET Geowizard to do this but it's not free . I arcscripts.esri.com i found a tool named "SplitLayerByAttributes" but it ...
5
votes
3answers
2k views

Remove spatially duplicate features using ModelBuilder

I am creating a model to remove features which are duplicated within a polygon feature class. Most of the features are duplicated once, but about a quarter have up to three or four exact copies. I do ...
3
votes
2answers
2k views

Extract by Attribute Using ModelBuilder, With User Input

Using ModelBuilder, I want to create a tool that will let a user choose the value or values that will be used to extract a shapefile. I have a parcel layer with a "Parcel_Type" field. I want the user ...
17
votes
8answers
638 views

What are some resources for learning Python and arcpy?

I would like to learn arcpy, but I do not know quite where to begin. Does anyone have any good advice on where I should start to learn arcpy?
10
votes
2answers
2k views

Specifications for GIS desktop hardware

I'm in the market for a new pc/laptop. Judging from what I've seen around here, a lot of people are discussing having a laptop for their personal GIS use. Portability is not an issue for me, so I'm ...
11
votes
3answers
1k views

Do ArcGIS SpatialReference object factory codes correspond with EPSG numbers?

I've got a project where I'm reading in geometry objects from text files to put them in ArcSDE. These geometry objects have an associated EPSG code, and I'm looking for a way to ensure they're in the ...
12
votes
5answers
699 views

How can I programmatically get the path of “Python.exe” used by ArcMap

I am working with an add-in of ArcMap in c#. From c# code, i have executed some python scripts. Now, to run those script, I have hard-coded python path. But this is not portable. So, I want to get the ...
12
votes
2answers
3k views

How can I sucessfully import 3D surface and features from ArcGIS 10 into Sketchup 8?

What are the steps required to successfully export an entire 3D model (composed of TIN surfaces, 3D polygons, 3D polylines and 3D points) from ArcGIS 10 to Sketchup 8? Preferably, I would like the ...
2
votes
0answers
429 views

Spatial Analyst Cell Statistics seems to give the wrong answer in ArcGIS 10.0

I have a script that calculates standard deviation for a list of grids using the Cell Statistics function in Spatial Analyst for ArcGIS 10.0 The syntax is this: stdevGrid = ...
10
votes
2answers
2k views

Add a new group layer with python ArcGIS 10

Does anyone now how to add a group layer with python can I use arcpy.mapping.AddLayer but surely this is only for an actual layer as opposed to a group layer. so far I have this import arcpy mxd = ...
8
votes
3answers
4k views

How to create a shapefile in ArcGIS 10 using arcpy?

How can I create a shapefile using Python in ArcGIS 10? I have lat & long. From this I need Python code which will create a shapefile and display it in ArcGIS 10. Thanks.
7
votes
1answer
457 views

How to perform a table look-up using Python in ArcGIS 10.0?

Using ArcGIS 10.1 the arcpy module has a TableToNumPyArray command, which converts a table into an array. Unfortunately I don't have access to 10.1 on my work PC. Is there a workaround which will ...
7
votes
4answers
3k views

How to remove a feature layer in an ArcPy Script

So, I have an arcpy based script where I'm trying to intersect two layers where one layer must have its centroid in the other layer. Since I need to know that one layer (feature_layer below) includes ...
6
votes
2answers
922 views

Cartographic techniques for symbolizing routing data

Some common problems with displaying routes created from street data, such as bus routes, include: Routes may overlap themselves, such as when a route takes the same road in opposite directions ...
6
votes
2answers
2k views

Basic Field Calculator Python Question

I'm trying to used the Python syntax in ArcGIS 10's field calculator and am thoroughly confused. So far the most basic calculations are failing me, and I don't understand why. I'm trying to create a ...
3
votes
3answers
748 views

Manually edit a raster to improve a classification?

I have a land cover classification derived from Landsat TM imagery - I created this classification using ENVI. I would like to edit individual and groups of cells in some areas of the classification ...
3
votes
2answers
1k views

Can you programmatically change the button image for a ESRI.ArcGIS.Desktop.AddIns.Button?

I'm new to the AddIn customization model in ArcGIS 10 and I'm trying to figure out how to change a button image for a button. I'm looking for the equivalent to the BaseCommand UpdateBitmap method and ...
10
votes
7answers
2k views

How do I create a shapefile showing footprints of Rasters?

I have around 1,000 satellite images in tiff format, and I want to create a shapefile which will serve as an index to the rasters. This is something similar to a raster catalog, but I do not want to ...
8
votes
2answers
919 views

Is there an automated/geoprocesing tool In ArcGIS to slice, clip, or cut polygons using polylines?

Looking for a simpler method here. I am trying to split up / cut / slice existing polygons by using existing poly-lines. An example would be splitting a water body or land parcel at the point where a ...
7
votes
2answers
7k views

How do you create 9.3 version of a geodatabase in ArcMap 10?

Under the What's new for geodatabases in ArcGIS 10 Esri talks about an optional parameter that allows you to create a 9.3 GDB [GeoDataBase] in version 10. I can not find any other info. Any help on ...
4
votes
3answers
916 views

Select features by attribute if in Python list

I believe this will amount to largely a sql syntax question. Essentially, I am trying to complete a select by attribute in Python but based on the query of whether an attribute is present in a list. ...
14
votes
3answers
1k views

Why do ArcMap.exe processes stay open after I close ArcMap?

I realized that this is happening months ago when I was not able to alter table structure in an instance of ArcMap after another instance was closed. When, for example, I remove or add some fields to ...
10
votes
3answers
1k views

How do I use sys.exit(0) in an arcpy script to exit early without having an error message show up?

I have an arcpy tool script for ArcGIS 10.0 that has two major functional sections. The user can choose whether or not to run the second section. If the user chooses NOT to run the second section, I ...
8
votes
4answers
2k views

How to find the minimum edge to edge distance of polygons?

I have a a map of about 3000 polygons in ArcGIS 10. I'm looking to find the distance between each one of them. I know how to do it using the lat and long coordinates of the centroid, but I'm looking ...
7
votes
2answers
949 views

selecting by attribute and specific value replace

I want to select all of the features by attribute where the attribue in myattrib is like... Selection "criteria H". That is not a problem. However then I need to replace (myattrib," H", "") except ...
6
votes
2answers
2k views

Problems setting up eclipse (with PyDev) for ArcGIS 10

I'm trying to use eclipse with PyDev to program in python. In Windows 7 x64, I've added a PATH environmental variable (PATH C:\Python26\ArcGIS10.0\python.exe;) and what I thought were the relevant ...
8
votes
4answers
2k views

How to 'burn' a stream network into a DEM layer in ArcGIS 10?

I am working on a DEM that in an area where there is little relief. I would like to 'burn' the river network into the DEM so I can calculate flow accumulation and flow length accurately. I am using ...
7
votes
7answers
876 views

How to Remove return/newline (\n) character from Field using Python and Field Calculator?

I have a geodatabase table with a field that I'm trying to remove return characters (new line). I found this post (How can I remove (chomp) a newline in Python?) of how to do it, however it is not ...
5
votes
2answers
2k views

How to convert Distance, Azimuth, Dip to XYZ?

I have an excel spreadsheet with header and survey drill data. Header data contains hole ID, and location coordinates, and the survey data contains related downhole survey with Distance, Azimuth and ...
5
votes
1answer
1k views

How can I programmatically display the “Create Features” dockable window in ArcMap 10?

When I start editing in ArcMap 10, by default the "Create Features" window is automatically opened and docked. Stopping the edit session hides this window. When I use the IEditor:StartEditing method ...
3
votes
1answer
1k views

How do I programmatically create non-feature-linked, simple line callout annotation and set the anchor point?

Vitals: ArcGIS-ArcView 10.0, Python 2.6.5, PythonWin, comtypes I'll start with my main questions: How, using ArcObjects, do I go about creating non-feature-linked geodatabase annotation features ...
2
votes
2answers
2k views

Streetview/Bing Bird's Eye Add-In

I'm trying to create an Add-In for this tool: Link to Google Maps and Bing from MXD (Streetview and Bird's Eye supported) I'm not receiving an error however my browser is not opening after I select ...
2
votes
1answer
875 views

How do I insert a DATAFRAME_ELEMENT value into a dynamically generated shape file containing its extent?

This is for ArcGIS 10, Python 2.65. I have code which captures the extent of dataframes within all mxd's in a directory. I also want it to add the dataframe name, scale and the name of the mxd it ...
10
votes
2answers
531 views

How to compute a new attribute based on changes in another attribute?

I am attempting to classify a set of gps time-encoded point data into behaviors based on different attributes. I have created an attribute that is 0 for home and 1 for away based on location, and now ...
7
votes
3answers
2k views

What ArcGIS 10 geoprocessing tools support exporting tabular data to CSV?

I have found that most if not all geoprocessing tools that allow tabular output are limited to geodatabase tables and DBF files for supported output formats. Are there any that also support CSV ...
6
votes
2answers
971 views

Change from layout view to data view using python? (ArcMap 10)

Is there a way to change from layout view to data view using python? I would prefer to do it using arcpy.
5
votes
2answers
770 views

Reconcile a Versioned Geodatabase with only the DEFAULT version

Follow up to this: Spatial Database Connection String I am trying to reconcile a versioned geodatabase that has only one version, DEFAULT. I am following the steps from the ESRI documentation: A ...
5
votes
5answers
1k views

Volume of water in a basin with reference to incremental height of DAM

I have a DEM of my area. I did watershed analysys with archydro. I want to calculate "Volume of water in a basin with reference to incremental height of DAM" Is there any method, tool to give output ...
5
votes
4answers
4k views

How do you test for a NULL string field in the Field Calculator with Python?

I am trying to perform an operation on a string field with a condition that it contains data. Referencing None with Python does not appear to work when the field is nullable and contains <Null> ...
5
votes
2answers
1k views

Installing ArcGIS 10 with Python(x,y)

EDIT 10/20/2011: The problem I was having below was caused by trying to install Python(x,y) after ArcGIS 10. I got a new machine yesterday and instructed IT to install Python(x,y) 2.6.5.3 (has ...

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