ArcGIS for Desktop is an Esri product from the ArcGIS Platform. This tag should be used to distinguish issues with it from those of ArcGIS for Server, ArcGIS for Mobile, ArcGIS Online, etc

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3
votes
1answer
54 views

Using Python in Field Calculator to compare two fields

I'm trying to use field calculator to compare two fields in a table of tax parcel data, Land Value (LAND_VAL) and Improvement Value (IMPRVT_VAL). My goal is to determine (1) Parcels with land value ...
1
vote
1answer
26 views

Transfer domain descriptions from coded values to string text at a new field

Further to my earlier question,I'm trying to develop a script that eventually should contain three parameters, feature layer, domain field and a new text field. How can i write a loop that will update ...
1
vote
2answers
59 views

Calculate the sum of the area of selected features?

In Arc I am trying to write an expression that will calculate the sum of the area in sq mi of features whose attribute is equal to "PRO1E". Thanks for the help.
2
votes
4answers
94 views

Field calculator Python else statement question

The codeblock below is run on Field1 and calculates Field1 to equal Field2 if they are not equal. Else it returns Field1. My question is, does the else statement actually recalculate Field1 to equal ...
1
vote
2answers
28 views

Delete numerous NoData rasters from database

I've got >1000 rasters in a folder with about 10% containing no data. I'm looking for a method, preferably through ArcGIS (also open to QGIS, GDAL, etc.), to run through the folder and delete all of ...
2
votes
1answer
50 views

Mosaic Aerial Photography Tiles to a Seamless Raster

I've got about 6 different Aerial Photography datasets I am managing at the moment. All of them are made up of tiles covering a large area. Some of these datasets contain up to 2000 tiles. All the ...
0
votes
1answer
29 views

Trouble joining table in arcgis. Joining field is 'greyed out'

I'm trying to join a shape file with a excel file I converted into a CSV. I had done this before with the same shape file but with a different CSV but this time when I try to select the column it's ...
3
votes
1answer
37 views

Expand raster extent and set expanded values using nearest neighbor sampling

I have run a hydrodynamic model which has given me a grid of surface elevations throughout a bay. I am trying to process the results in ArcMap (or QGIS if needed). My goal is to take the current grid ...
3
votes
1answer
33 views

Coloring of features in ArcMap 10.1 changes randomly while zooming

I am using the sovereign states shapefile (ne_110m_admin_0_countries.zip) from http://www.naturalearthdata.com/ and joined the attributes with a spreadsheet file that codes many (but not all) country ...
1
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0answers
33 views

How to use Record Set to prepopulate table in ModelBuilder?

I'm running ArcGIS 10.2.1. and am trying to prepopulate a record set in model builder. The record set is set as a Modeled Parameter. I open the record set enter the information into the table and ...
1
vote
2answers
37 views

How to get/set label scale ranges (e.g. minScale) in ArcPy?

For a layer object lyr, one can programmatically set the minScale in arcpy as such: lyr.minScale = 150000 For a label, one can manually set the scale range within a dialog in ArcMap. In arcpy, is ...
0
votes
1answer
49 views

How do i create a flow line map for my data?

I am trying to illustrate a passenger travel flow map from a road terminal to several destinations on a road layer. I have QGis and ArcGIS, but I don't know much on how to start the work. I already ...
0
votes
1answer
15 views

relative path for image elements in ArcMap

Is there a way to set relative path for image elements (like a company logo) in ArcMap projects? The classic "Store relative path" option in the Map Properties doesn't seem to be working. Thanks!
3
votes
1answer
35 views

How to give elevation information to a polygon feature class using existing TIN file ? (geological mapping)

I'm an ArcGIS 10.1 user. My issue: I have a printed form of a map which depicts geological bodies being surface rock occurence. Additionaly, there are elevation contour lines. I digitized the map by ...
1
vote
1answer
42 views

Why doesn't ArcGIS rasterize every polygon

I am trying to rasterize elements from a vector map but somehow ArcGIS only lets me rasterize 15 objects. I added a new field so that every object would get the same value. The original layer had 87 ...
1
vote
1answer
39 views

How to Interpolate through ModelBuilder?

I would like to create an iterated interpolation tool through ModelBuilder. I have an excel file containing different columns and each column represents a data that will be interpolated using Spline ...
4
votes
1answer
59 views

How to select all values by default in arcgis tool's multivalue parameter using python?

I am using ArcGIS 10.2 and have three parameters, Feature class, field and a multivalue parameter respectively in ArcGIS tool. I populate multivalue parameter with unique values of feature class on ...
0
votes
0answers
24 views

How can ArcGIS split polyline automatically? [duplicate]

I am trying to split polyline by distance. I know I can use the function in editor. But I have to split it one by one. How can I do it automatically ? Is there any python scripts or tools for ...
5
votes
3answers
84 views

Does anyone know of a way to remove the distorted edges of a TIN surface?

I'm trying to remove the stretched edges of a TIN surface without having to draw a polygon around the features that I want clipped. Does anyone know how to do this without free hand drawing? I was ...
0
votes
3answers
72 views

From shapefiles to a printed map, what are the options? [closed]

I will soon start a new map project where the data is a set of shape-files and the outcome will be a printed (50x70 cm) large scale topographical map (1:50000). Earlier I've been using ArcGIS together ...
1
vote
2answers
41 views

Renaming a variable input to replace spaces with underscores to be used in an output's name

This may be easier than i am making it. Using Model Builder, I have a variable input "Name", which is set as a model parameter, used for a 'Select by Attribute' early in the model. I would like to ...
1
vote
0answers
24 views

How to select MODIS pixels with 80% homogeneous landcover from landsat classification?

I have a complex landcover classification for a landsat scene at 30m spatial resolution. Includes about 600 land cover classes. There is a fair amount of clumping per group. I have a MODIS EVI 16 day ...
2
votes
2answers
60 views

ArcGIS - Extract by Attibutes in Model Builder

I have a model which at one point uses the Extract by Attributes tool to produce a new raster with just the areas containing the maximum values of the first. I would think that the SQL expression ...
-1
votes
4answers
105 views

Issue with UpdateCursor and if/else statement

I have been working on this code for awhile and I can't make it work the way I need it to. The code is suppose to move a feature according to a set distance from types in a designated field. As the ...
0
votes
0answers
23 views

Extract aregular gride of points (x,y) values inside a polygon in arcgis10.2

This question may be frequently asked .But until know there is no clear answer . I need to extract a regular grid of points inside a polygon .In every time i construct several polygons from the ...
0
votes
1answer
51 views

Help in importing excel data

I have downloaded the hourly solar radiation data from NREL which is in CSV format but the problem is that the file does not have an exclusive column called latitude and longitude. There are 100s of ...
1
vote
3answers
71 views

How to label using just numbers from start of text field?

In ArcMAP 10.2, I am trying to format the labels on my map. If the label is 1402 Bowie Road But I want only to display numbers: 1402 What is the expression to create this?
1
vote
1answer
37 views

How do you remove isolated roads from a bigger network?

I'm trying to perform an OD Cost Matrix calculation on a set of points using a road network from OpenStreetMap data. The network contains lots of roads that don't connect to the rest of the network. ...
0
votes
0answers
38 views

How to create a many to one spatial join?

I have a polygon feature class of territories and a point feature class of trees. The points have many attributes, one of them is the tree species name. I need to get the list of all the tree species ...
-1
votes
1answer
33 views

How to use Ordinary Least Square (OLS) & Geographically Weighted Regression (GWR)?

I have managed to join the data set(xl. file) with a shapefile. I want to run these models, OLS and GWR in Arcmap, my problem is, I'm bit confuse about these fields, "Input Feature Class", "Output ...
1
vote
1answer
75 views

Null value error with Python in field calculator

I'm trying to calculate the angle between two line segments in ArcMap 10.0. I have a point shapefile, so I'm using the xy coordinates of 3 successive points to calculate the angle. I'm trying to use ...
0
votes
2answers
34 views

Clipping a raster file into the multiple shapefiles

I splitted the single shapefile into the multiple shape file based upon their attributes. Now I want to clip the raster file into the each splitted shape file. How can I do it at once? I am using a ...
1
vote
2answers
51 views

Counting Characters using Field Calculator - Arcmap

I am trying to use field calculator to populate a column based on the the number of characters in another column. I am using the Python Parser. I am not sure if the .count() function is appropriate in ...
0
votes
1answer
19 views

Scripting a Loop of Clip (Analysis)

I wish to loop function that clips a shapefile by a feature class. I want to make the clip the same as the input name. The names of the files are WVHGT_201403281200_f180_201404050000.shp and I just ...
0
votes
1answer
28 views

How does Arc projecting data without spatial reference?

I have a raster file downloaded from here. When I load it into ArcMap, it says the data is missing spatial reference, and that it can be drawn in ArcMap but not projected. Nevertheless, using the ...
0
votes
0answers
15 views

Error building pyramids/statistics on raster with arcpy

I am building a script to process rasters with the option of adding the extra step of building pyramids and statistics at the end. For some reason, it will not recognize inputs as legitimate raster ...
1
vote
1answer
43 views

Align line shapefile to base shapefile

I'm using Arcgis 10.1 and i have two line shapefiles. I know there is a way to make one shapefile follow the contour of the base shapefile but i cant figure how it is done. How can I make the blue ...
1
vote
0answers
32 views

“Enable Attachments” tool in ArcGIS 10.2.1 for Desktop

I am working through the tutorial for Arc Collector - Step 8, which says : To allow users to take pictures in the field and attach them to their assessment reports, enable attachments on the feature ...
0
votes
0answers
19 views

In network analyst (ARC 10.1), some junctions and edges are not adjacent to one another. What can I do to solve this isse?

I am running ARC 10.1 and using shapefiles. I created the network but some junctions are not adjacent to the polylines that are snapped to that junction. For example, Junction 1 has two edges either ...
1
vote
2answers
50 views

Measure average distance between two lines with common endpoints

I have two shapefiles, each with a set of lines generated from start and end points. One shapefile has the straight lines generated from the XY To Line tool, while the other has lines generated from a ...
0
votes
2answers
43 views

Whats a Python Script/Method to use to get the number of fields with data in an attribute table?

I am doing some data migration and need the number of records with actual data, sans null and blank fields, without switching back and forth with select by attribute. Ideally I would like to run a ...
0
votes
1answer
25 views

MakeXYEventLayer_management not creating final file?

I'm using python to generate x and y coordinates for the start and end of lines in Arc. I have successfully done this part but when I try and generate the nodes I have no idea where the output file ...
1
vote
2answers
75 views

How to do spatial correlation between two variables on ArcGIS 10.1?

I have two datasets and I'm trying to determine the extent of their spatial relationship. I suspect they are closely related but I would like to produce a map output to illustrate this relationship. ...
0
votes
1answer
27 views

CalculateField_management - updating fields with X and Y coordinates for start and end of line

I've searched all the help documents and can't see where my script is going wrong. I've tried adding the fields as FLOAT, replacing "PYTHON_9_3" with just "PYTHON" but it just doesn't work. The ...
1
vote
0answers
38 views

How to produce a hazard map using slope and geology information

for my project I need to display a landscape's susceptibility to erosion. I created a slope-map out of my DEM and added the bedrock geology as a polygon-feature shapefile. Now I want to tell ArcGIS ...
0
votes
1answer
26 views

ArcGIS - go to x,y / Add Labeled Point DELETE

Does anybody knows how to DELETE a green point with coordinates that I added to my map using Go to x,y / Add Labelled Point?
3
votes
1answer
41 views

How to obtain the width and height of an image using arcpy

This Stack Overflow question shows how to obtain the pixel dimensions of an image using Python. Is it possible to find an image's height and width using arcpy and ArcGIS? arcpy.Describe would seem ...
0
votes
0answers
27 views

Continuous Polyline Network between two cities

I'm a relatively new user using ArcGIS 10.1 (ArcMap). I wish to construct all the rail lines between New York and San Francisco. I have all the rail lines as poly-lines that span the entire country, ...
0
votes
1answer
54 views

Python field calc syntax error

The screenshot shows a calculate field tool in modelbuilder. The error I'm getting is invalid syntax line 1. I can't see any issues w/the syntax so I'm hoping someone out there can help. It ...
1
vote
2answers
107 views

Import CSV column into existing feature using arcpy

My goal is to take a CSV that contains 50 rows and one column and import the data into a feature class with over 3,000 rows using arcpy. I want to pick a random row from the CSV and then iterate ...