Questions tagged [arcgis-10.4]

Use this tag when ArcGIS 10.4 is the version you are using from the ArcGIS platform.

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89 views

Georeference old historic maps of Africa in ArcGIS 10

I have a couple of historical maps of Africa which need to be georeferenced. There are latitude and longitude information on the map and now my question is may I use wgs84 in order to georeference ...
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1answer
65 views

Loop every element in the same layer with a function using ArcPy?

I have the following code: import arcpy from arcpy.sa import * arcpy.env.workspace="D:/..." sp="StartPoint.shp" #Dataset that defines the zones zone_field="FID" #Field that ...
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0answers
70 views

How to select trenches only upstream of a station (select by location)

I have a shape (line) that represents the hydromorphology of watercourses and contains several parameters. This morphological study of watercourses has been done on every 100 meters of surface ...
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1answer
131 views

ArcMap: Aligning legend items

We have to generate hundreds of mxd's and i am currently working on a template. In the template mxd, template legend items will be standard and while changing the source layer path, legend items are ...
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2answers
165 views

ArcMap: Apply symbology from layer, remove zero counts from values

We have to generate 100's of pdf's (from mxd) for 100's of shapefiles based on a column value "dummy". We have a template lyr file with predefined symbols for each category type in the "dummy" column. ...
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0answers
153 views

How to create sector polygon for a given point feature at a given radius (1000 Km), and direction using ArcPy code?

I want to create polygons of sector shape for many point features. Each sector has central angle of 90 degrees and radius of 1000 Km. How can I create it using ArcPy code? Here is my approach that I ...
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1answer
49 views

How to put value from different fields using Python?

Here I added a new field name "visArea" and want to put in the number from the "Count" column which "Value" equals one.That means the number of visible point(value=1)from selected observe spot.I used ...
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1answer
26 views

How to get the most current data from a Temporal Feature Service?

I have created a Temporal Feature Layer on our ArcGIS Server, which records all the locations, along with timestamp & other attributes of moving vehicles. I used the TimeSlider Sample, to create ...
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2answers
51 views

Performing COST PATH in ArcMap?

I have a tiff raster dataset serving as cost raster, created a start point and destination point serving as feature source data for performing COST PATH in ArcMap 10.4. Since the tiff raster layer ...
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0answers
345 views

Taking ArcGIS feature class to pandas pivot table? [closed]

I'm new to pandas and am trying to create a pivot table based off of two fields - DIVISION and MATERIAL. I'd like to count each occurances of each value. Rows would be DIVISION and columns would be ...
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1answer
109 views

Setting GPFeatureLayer parameter programmatically in Python Toolbox (.pyt)?

I've created a python toolbox (.pyt file) with 2 tools in it: Prep() creates various derived datasets; Track() does processing using the prepped data. The idea is for Prep to be run just once, ...
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0answers
40 views

Obtaining vegetation data for a coordinate location (lat/long) using ArcMap

I have location coordinates (lat/long) for a province in Canada and I want to map the type of vegetation to that location. I am trying to extract the vegetation data from land cover files which are in ...
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1answer
102 views

Adding XY Data to ArcMap? [duplicate]

I have seen similar questions and read the responses but did not understand any of the answers even after reading them several times closely, including Adding XY Points to ArcMap? I am adding XY data ...
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1answer
112 views

Always crashes when choosing symbology “unique values”

Using ArcGIS 10.4 I have a polygon shapefile with many columns, one is called "coding". It includes pure numbers like 31001 Now I need this as a raster with this code as the value. So I tried, as ...
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1answer
51 views

Merge points within each polygon

I have multiple polygons that have zero to 4 points (sampling sites with a list of species) in them. I need all the information from these sampling sites ONCE per catchment. So instead of up to 4 ...
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1answer
102 views

How to only delete vertices where the Polyline doesnt bend

I am working on pipes and I only need vertices where the lines bend. A lot of my pipe have vertices in the middle of the polyline even though there isn't a bend. Is there any way to delete them with ...
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1answer
63 views

Field calculator in ArcGIS 10.4 multiline python code

I am trying to use field calculator to calculate a field based on unique types in another field. I had to go for a for loop to add new values. I have 81 classes and every class should be assigned an ...
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1answer
275 views

Taking data from related table and populating feature attribute table in ArcGIS Desktop?

Our forester wants trees symbolized red if they haven't been trimmed, green if they've been trimmed. Trimming info is maintained in the Tree_Maint table, which is a one to many related table to our ...
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2answers
367 views

Script tools will not run and error is blank?

When I try and run any script tools from ArcToolbox, the red X icon shows up next to the input features line, but there is no error when I hover over the X. If I proceed with the tool and click OK, I ...
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0answers
36 views

Pulling Data off PNG map scan using ArcGIS Desktop?

I have scanned a map with several trade routes on it and georeferenced it on top of a hydrology (river system) map of the U.S. The scanned map is a PNG file. How can I pull off the trade routes? ...
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4answers
113 views

Using ArcGIS field calculator with if else to populate field?

ArcMap 10.4.1 on Windows 7. I am trying to fill in some blank rows in a column using field calculator. The field I am trying to fill is: label. If it is empty I want it to be populated with a value ...
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1answer
128 views

Code features based on their rank of an attrbute

I would like to have all the records in a table given a rank value based on the values in another field. The caveat is that there are tied rankings. For example in the attached screen cap, EPDO is the ...
1
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1answer
252 views

Writing arcpy.ArcSDESQLExecute connection string for Oracle?

When using arcpy.ArcSDESQLExecute, I was trying to debug why a sql statement was not working and throwing an error. I thought the sde connection file that I was passing might be the problem because I ...
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1answer
43 views

How to treat bias? Calculate zonal statistics proportionally?

Using ArcGis 10.4 I don't know if this is even possible, but I want to give it a try. The following problem: I have subcatchments (built from a DEM) and I have a river shape. This river shape is ...
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1answer
28 views

Extracting columns from shapefile into new raster using ArcGIS Desktop?

Using ArcGIS 10.4 I have a line (shapefile) with lots of information. In 8 columns there are groups of species (Group 1 to Group8), indicating if this is the dominant species group in the area or not....
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0answers
66 views

Merging separate polygons to one polygon without using (buffer, dissolve, and neg buffer)? [closed]

I want to merge separate polygons to one polygon. But I want to do it without using (buffer, dissolve tool ets). I want to visualize the sepated polygons in to one polygon. I can work in ArcGIS and ...
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0answers
47 views

Extracting Text Objects from Vector Graphic Software?

Within a Canvas X 2017 GIS file, (an ACD Systems software) I have a number of vector graphics layers, all of which contain thousands of manually entered text objects only conceptually paired with line ...
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1answer
145 views

Output feature missing when using Cluster and Outlier Analysis (Anselin Local Moran's I) in ArcMap?

I am currently working on a project which I must calculate Anselin Local Moran's I. I am using polygon features and ArcMap 10.4.1. Here is my problem: when I am trying to run the command ArcMap shows ...
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1answer
40 views

Converting multiple polygons to a single density raster

I have 20 polygon shapefiles that overlap each other. I want to get a kernel density type raster from the polygons, but I am not sure if ArcMap (10.4.1) offers a tool to do that.
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1answer
158 views

Determining Upslope and Downslope from Line Features to Map Hydrologic Capture Zones

I am trying to map hydrologic capture zones (HCZ). HCZ's are contributing areas upslope of any potential capture feature (i.e. road, pipeline path, railroad line), that would alter/impact the natural ...
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0answers
79 views

Oracle 11g aliases that work in ArcMap 10.4

I am getting this error shown in the picture when I try to export a database view into a GDB table in ArcMap 10.4. I know what is causing the error, its the double quotes I use to create alias names ...
3
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1answer
28 views

Transferring direction of polylines to another set of polylines in ArcGIS Desktop?

Is it possible to transfer a direction of polylines to another set of polylines? I have a road network with "oneway" column in it. I do a series of operations on the network in ModelBuilder to ...
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1answer
265 views

Adjoint catchments missing in Arc Hydro?

I am using ArcGIS Desktop 10.4. I have to calculate the upstream river catchments of all my small river catchments. As you can see in the picture below, there are catchments missing in a weird ...
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0answers
106 views

Improve Catchment polygon processing result accuracy?

I use the ArcHydro Toolbox and ArcGIS 10.4 I ran through the regular steps of Filling Sinks of a DEM, Flow Direction, Flow Accumulation, Stream Definition, Stream segmentation, catchment grid ...
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3answers
356 views

Import .txt in ArcGIS

I am importing a .txt file into ArcMap (10.4.1). It all works fine, apart from the fact that when I open the table in ArcGIS it says the fields are string, when they should be numeric [please see ...
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0answers
212 views

Exporting Feature Class to Shapefile in ModelBuilder?

ArcGis 10.4 I have to create buffers in the ModelBuilder. At one point I have a feature class from which I have to spatially select some items (via tool "select by location"). But this tool does not ...
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0answers
57 views

Selecting two records and comparing to keep one with highest attribute using ArcPy? [closed]

I have a feature class with many scattered points. My goal is if there are two points within 1 meter, to identify the point with the lowest Mean value (it is a quality metric from 0 - 1) and delete it,...
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2answers
54 views

Spatial join data to catchments?

Using ArcGIS 10.4 I have a feature class with many small catchments. I also have several raster layers with information for these catchments (derived by zonal statistics). For example the sum of ...
2
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0answers
104 views

ArcGIS 10.4 strange phenomenon with special Unicode Characters Column

I worked on this problem for a while and I have localized it pretty well now to ArcGIS 10.4 at its core (haven't tested 10.5): A column that contains special Unicode Characters (emojis) is not read ...
1
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1answer
37 views

Corine data aspect analysis in ArcGIS

I have a SRTM dataset, Corine Land Cover and have already calculated aspect. I want to know the relative proportions of exposition classes of certain landcover type. My thought was to use zonal ...
0
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1answer
114 views

Installing ArcGIS Engine Runtime via image copy?

We have about 400 ArcGIS Runtime Engine 10.4.1 licences, where we will install on devices for emergency. These devices already up and running and using ArcGIS Engine Runtime 9.3. The time we are going ...
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0answers
162 views

Calculate river length in each subcatchment

Using ArcGis 10.4 I have suceeded in calculating "maximum upstream river distance to its reach per subcatchment" per subcatchment with the help of this forum (see Calculate river distance to ...
1
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1answer
50 views

Grouping data by region in ArcGIS Desktop?

I have a map of the UK which splits the whole country into 1km polygon squares. Each polygon contains data, and I want to try and group the squares into local authority level. I have tried overlaying ...
2
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0answers
511 views

Finding Height and Width of Polygons using ArcGIS Desktop? [closed]

I am using ArcGIS 10.4.1 I have been asked by my employer to take a shapefile and produce a table that shows the height and width (in meters) of each polygon in a shapefile. I have explored the ...
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0answers
33 views

Clipping large IUCN range map vector file to shapefile using ArcGIS Desktop?

I'm having trouble clipping my large IUCN species range maps vector file to a southeast asia boundary shapefile. The single vector file consists of many individual species polygons. I've tried ...
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1answer
266 views

Calculate river distance to headwater for every pixel?

I already posted a similar question a few weeks before. But since my dataset changed and I still havent solved it, I thought its good to post a new question instead of editing the old. Using ArcGIS ...
2
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2answers
121 views

Using Eliminate in ArcGIS ModelBuilder?

I set up a model in ArcGIS 10.4.1 ModelBuilder to use the Eliminate tool. Searching around to do it led me to Select by Attributes in Model Builder and Eliminate in Arcpy, but it just wont work. I'm ...
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3answers
278 views

Extract exact coordinates of points?

I am using ArcGIS and have a shapefile with data points. They have UTM x and y coordinates, so I can plot them in ArcGIS with "Display XY data". Now I saw that many points are not exactly on the road, ...
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1answer
1k views

Setting zero values to “NoData”?

In ArcGIS Desktop I have a slope raster and calculated mean slope per watershed for a fish habitat model. There are zero ("0") values in some subcatchments where no information was available to ...
2
votes
3answers
99 views

Creating buffer based on occurrence frequency using ArcGIS Desktop?

I am using ArcMap 10.4.1. I have several point shapefiles containing different occurrence data for two different species of flower (from multiple sources, hence the multiple shapefiles). I want to ...