Use this tag when ArcGIS 10.0 is the version you are using from the ArcGIS platform.

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9
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3answers
762 views

Creating raster by randomly choosing cell value from multiple overlapping rasters?

I'm using ArcGIS Desktop 10 with its Spatial Analyst extension. How do I combine multiple rasters into one, always choosing randomly from the values of overlapping cells? I have an image that may ...
9
votes
4answers
511 views

ArcView 3.x Avenue Bitmaps (Tabs?) vs. ArcView 10 Python Cursors

Note: While this question has an answer, any further tips for optimizing a cursor process would be greatly appreciated. I will be monitoring for any updates. Currently, my boss (who works in Avenue) ...
9
votes
2answers
2k views

Error handling with python script in ArcGIS 10

I have a python script that I am using to create a list of all mxd files (with full pathing) in our Projects folder. The script then uses that to iterate through the list and do a ...
9
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2answers
1k views

Inserting newlines in Rectangle Text elements via ArcPy causes overlap?

I ran across an issue the other day when I tried to use ArcPython's mapping module to edit rectangle text elements with newlines (\n) in an ArcMap document. Here's what the output looked like: ...
9
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2answers
286 views

Custom implementation of ArcGIS function

I would like to find out what it takes to create a custom implementation of an ArcGIS function. In particular, I would like to implement GeoAnalyst.ISurfaceOp2.Visibility() in order to get it to run ...
9
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3answers
5k views

How can I add dynamic text to a layout from an attribute table?

I was trying to figure out how to use dynamic text from an attribute table in a collection of Data Driven Pages in ArcGIS 10. I've looked in the help files, but can't find anything on dynamic text ...
9
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3answers
2k views

ArcGIS Python Tool - Importing Custom Script Into ToolValidator Class

I had posted a question last week about customizing a ToolValidator class and got some very good answers. In working with the proposed solutions, I have created a custom module that performs queries ...
9
votes
1answer
1k views

How can I use a neural network in GIS?

I'd like to learn how to use a neural network in GIS. I surfed in the internet to find good resources or a tutorial about this but I couldn't find any helpful resources. Are there any good references ...
9
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2answers
3k views

Is ArcGIS 10.1 Desktop compatible with 10.0 Server?

Since upgrading my "ArcGIS for Desktop" (Windows 7) client to 10.1, I'm having the hardest time trying to figure out how to publish a Map Service on my (CentOS) 10.0 Server. Back on 10.0 Desktop, I ...
9
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2answers
4k views

Is there a difference in performance between Merge and Append in ArcGIS?

Often I find myself in a situation where I don't care whether or not my tool produces a new feature class, but I do care how long it takes to combine all of my large datasets. Does it take longer to ...
9
votes
1answer
370 views

Is there a way to use ArcPy and PyGRASS tools in the same Python script?

I´m trying to write a Python script, that includes different ArcPy / ArcGIS commands and want to combine it with GRASS geoprocessing tools. Unfortunately importing the GRASS libraries doesn´t work. ...
9
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2answers
1k views

What is the best way of refreshing the view after drawing graphics?

I draw a polygon on button click to highlight a feature. Then I need to refresh the ActiveView to show the new polygon. This lines do work: ...
9
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2answers
626 views

What happens to feature class when importing to feature dataset?

I am creating a model that needs to ensure that all input datasets end up in the same coordinate system (among other things). I was originally going to batch project all of the datasets whether they ...
9
votes
2answers
402 views

How to use IRelationalOperator2 and GeometryBag

I want to use the IsNear method of IRelationalOperator2. The documentation says that GeometryBag supports the IRelationalOperator2 interface. But this just doesn't work and results in an exception ...
9
votes
1answer
12k views

creating a dem from contours

I have a large set of contours that I received broken down into several different subsets. I have merged most of the subsets together creating a larger set of contours in three different files. I have ...
9
votes
3answers
1k views

What software to use as an all-around solution for mining GIS?

My employer wants me to look into constructing geology maps, modeling 3D subsurface geological formations, producing geological cross sections and other mining related products from various drill hole ...
9
votes
4answers
5k views

How to find Clusters of N Points Within X Distance?

We have tried two methods of cluster analysis: Cluster and Outlier Hot Spot ... but neither meets our specification which has these 3 parameters: a Set of Point features N points within a ...
9
votes
4answers
281 views

How to change the “W” (English) to “O”(French) on the North Arrow direction using ArcMAP 10.0?

How to change the "W" (English) to "O"(French) on the North Arrow direction using ArcMAP 10.0? I tried to convert the North Arrow sign to graphic but it didn't work.
9
votes
4answers
261 views

How to determine if point is surrounded using raster processing?

I am attempting to improve a currently extremely cumbersome vector/python process for a natural hazard model. At the moment we have a lengthy script which generates distance/bearing lines from a given ...
9
votes
2answers
7k views

Automated/geoprocesing tool to slice, clip, or cut polygons using polylines using ArcGIS Desktop?

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 ...
9
votes
1answer
2k views

Is there a line symbology that also shows vertices?

Is there such a thing as a line/vertices symbology? If not a workaround? In some situations, particularly when editing, I would like to see my lines as well as all the vertices similar to the effect I ...
9
votes
1answer
572 views

Can concurrent processes be run in a single model?

In model builder (for Arc GIS 10) is it possible to run two or more geoprocessing operations concurrently? For example I have to run repair geometry on 2 files and then merge them. Currently it ...
9
votes
3answers
1k views

How can I digitize features on an Y,Z plane in ArcGIS?

How can I geo-reference and digitize features on a Y,Z plane of a vertical cross-section in ArcGIS? The surface coordinate system is NAD 83 UTM 15. This is a simplified version of the question found ...
9
votes
1answer
1k views

Why does ArcGIS “forget” my specified default GDB for a map document (mxd)?

I'm using ArcGIS 10.0 on Windows 7 64 bit Ultimate. I've noticed that sometimes ArcMap's geoprocessing tools as well as scripts seem to forget my setting in the mxd (confirmed via arcpy.env.workspace ...
9
votes
1answer
221 views

How to create a branch network from several input points to an unique outlet in minimizing the distances?

I am searching a way to "hydrologically" connect upstream points to a unique downstream outlet by creating an optimized stream network as pictured below... The cummulated lenght of the stream lines ...
9
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1answer
851 views

Large Scale Geocoding and Processing in ESRI

Ok, so I guess this kind of a informal query/survey about how big a datasets you are using in your ESRI worlds... I am building and maintaining a statewide dataset, where I have to process down to the ...
9
votes
4answers
3k views

Kriging with barriers in ArcGIS Desktop?

I am trying to do interpolation in a coastal area with data points in several rivers emptying into a bay and on opposite sides of peninsulas. I have created a coastline layer to use it as a barrier ...
9
votes
2answers
1k views

How can I get weighted Flow Accumulation to deal with negative values? [duplicate]

here's one I haven't seen anywhere, to my surprise. I am trying to do something a little different with Flow Accumulation, which I would think has been attempted before, but it's stumping me for now. ...
9
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0answers
7k views

Splitting feature class by unique values for an attribute/field in ArcGIS for Desktop? [duplicate]

I would like to split a single shapefile into multiple shapefiles by using unique values for one attribute/field to select features for each value out into a new feature class. I found ET Geowizard ...
8
votes
5answers
7k views

Remove feature layer using ArcPy script?

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 ...
8
votes
6answers
16k views

How to get X Y coordinates and cell value of each pixel in a raster using Python?

I’m really new to Python and I would like to know whether there is a quick method to get cell values of a raster pixel by pixel and the coordinates (map X Y coordinate of centre of each pixel) using ...
8
votes
6answers
17k views

ERROR 000212: Cannot create XY event source Failed to execute (MakeXYEventLayer)?

I have a csv file that is 133mb in size and has over 1.3 million lines of data. Each line of data has its own lat/long and I was wondering what would be the best way to display those points based off ...
8
votes
2answers
9k 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 ...
8
votes
5answers
4k views

How to use ColorBrewer in ArcGIS 10?

I've been using ColorTool (based on supreme ColorBrewer) for most of my mapping needs in ArcMap. After migrating to ArcGIS 10 I discovered that it will no longer be a case. Are there any other ...
8
votes
3answers
4k 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 ...
8
votes
4answers
3k 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 ...
8
votes
2answers
3k views

Finding mid-point of line using ArcPy?

How can the mid-point of a polyline be calculated using the geoprocessing framework, e.g. in a Python script? The polyline.centroid property returns The true centroid if it is within or on the ...
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8answers
9k 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 ...
8
votes
4answers
4k views

ArcGIS fails to import all records from huge CSV file to file geodatabase table despite being within FGDB table size limits

I'm using ArcGIS 10.0 on Windows 7 64-bit with 4GB of RAM. I have some very large tables in CSV format to import to ArcGIS, they all have about 30 fields, upwards of 5 million records per table (a ...
8
votes
4answers
2k views

To what extent is SQL's language accessible via ArcGIS tools?

That question just sounds so redundant... At any rate, I have been asked to explore the uses of SQL in ArcGIS. We use an SDE DB for all server-side storage and DB managing/large-scale editing. ...
8
votes
4answers
3k views

Ways to change ArcMap 10 editing tool back to ArcMap 9.3 version

I'm trying to get used to using ArcGIS 10, but in the meantime I still need to actually get work done. I stumbled across a way to change the editor tool from its 10 version back to the 9.3 version ...
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votes
2answers
1k views

To Use or Not to Use Relationship Classes?

I am building a government database from a massive amount of data. Now I am following the standard approach of the ESRI Local Government Data Model, but modified to fits the needs and wants of a ...
8
votes
4answers
3k views

Best way to delete selected mass amounts of old data from a polygon shapefile attribute table?

Dumb problem that for some reason is giving me trouble. I have a polygon shapefile that is loaded with old demographic data in its attribute file, I just received the new data today in xls format. ...
8
votes
2answers
890 views

ArcMap running scripts slower if you import Arcpy

I am finding ArcMap runs slower, if you have written a script, which imports arcpy. You may wish to write a script that can be operated in ArcMap, through the python window, or as a standalone ...
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3answers
8k views

How to create a button in Arcmap 10 to run a Python program?

I have a script that I want to run within ArcMap when a button in a toolbar is clicked, and so far I have only been able to make the script into a script tool. I need it to run as a command, not as a ...
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2answers
3k views

Are layer files compatible between arcgis 10 and 9.3?

If I save layer files in ArcGIS 10, can they be opened and modified in ArcGIS 9.3? Many thanks for your help.
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4answers
1k views

In ArcGIS Is there a tool that will select a percentage (75%) of a whole group of points based on the distance from one separate point?

This is ArcGIS specific. I have 2 point shapefiles A and B, the first one (A) is a single point that contains a lat long, the second (B) is a multitude of points (over 12k) that each contain their ...
8
votes
3answers
149 views

How can I apply the same change to multiple map documents?

I have several map documents (around 30) that reference all the same files and display them all the same way. I created them by setting one map how I wanted it, then using "save as" to create a new ...
8
votes
1answer
2k views

Difference between Heat Map and Hot Spot Analysis?

What is the difference between "Heat Map Analysis" and "Hot Spot Analysis"? Are we perhaps using hot spot analysis to get the required relations between features, and then using the results as an ...
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2answers
2k views

How to reclassify a very large land cover dataset?

Consider the NLCD2001 Land Cover dataset for Alaska (download link). I need to reclassify this dataset so that only pixels of value 41, 42, and 43 are preserved; all other pixel values should become ...