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Questions tagged [tools]

Commands that require interaction with the GUI before an action is performed.

0
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0answers
18 views

Reconciling Features with different field types

I have two feature classes who mostly have the same fields. However, some of the fields do not share the same field types. For example, one has a created date field that is a Date while the other ...
5
votes
1answer
132 views

Is there a “Merge Parts” tool in QGIS?

In the advanced digitizing toolbar, QGIS has these 3 tools: Split Features, Split Parts, and Merge Features. Is there a tool or equivalent algorithm for the logical fourth one: "Merge Parts"? This ...
0
votes
1answer
19 views

ArcMap 10.6. Input Features of any tool causes software to crash

Any tool I use in ArcMap crashes the entire program when I click the folder next to the "input features". Literally any geoprocessing tool. I'm not sure why this is happening, or what relevant ...
1
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0answers
23 views

Project tool swallows data [closed]

I want to project my data into another coordinate system. I tried using the Project tool but when I opened the attribute table after ArcGIS said it had finished it was empty. I also tried using ...
1
vote
1answer
71 views

Looping Eliminate tool in Python?

I am very new at Python,I'm not sure if this is even the appropriate way to do what I want to do, but basically, I'm looking to eliminate all of the small polygons in a feature class that was created ...
0
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0answers
12 views

Disperse markers - trouble with input file?

I had an excel sheet listing addresses that I imported into ArcGIS and geocoded which created a File Geodatabase Feature Class of all the points. I am trying to display the map where it disperses ...
2
votes
0answers
49 views

Is there a keyboard shortcut to draw a perftectly straight line?

In most programs, when you have a line tool, you can hold control or shift and it will let you draw a perfectly vertical or horizontal line, sometimes it the tool will snap at 90 degree angles. How ...
0
votes
1answer
42 views

Can Python 3.6 Script be turned into tool that will work in ArcGIS Desktop?

I have a Python 3.6 script that I want to turn into a tool for that I can use in ArcMap (10.5). Will that even work or will I strictly have to do it in ArcGIS Pro? I couldn't seem to find any ...
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0answers
34 views

Error with QGIS and Grass Tools

I wanted to use the r.viewshed tool in QGIS. Everytime I want to start the tool there is a error (german): Dieser Algorithmus kann nicht ausgeführt werden run :-( GRASS GIS 7 ist anscheinend nicht ...
4
votes
1answer
75 views

Pretty-printing WKT strings?

Is there a tool that will pretty-print well-known-text strings? One that would accept for instance MULTIPOLYGON (((40 40, 20 45, 45 30, 40 40)), ((20 35, 45 20, 30 5, 20 35))) and output something ...
2
votes
0answers
92 views

No processing tools in QGIS 3.2 [duplicate]

I recently upgraded to QGIS 3.2 and followed the install instructions carefully. Under the raster and vector menus I have only 1 tool for vector and only 3 for raster. No analysis, geometry, ...
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0answers
99 views

Converting DXF/DWG/landXML to GeoTIFF?

I need to do a converion of surface for a large area from DXF (or landXML) with high resolution (0.3 feet grid spacing). Currently perform this with AutoCAD but it takes too much time (over 7 hours). ...
2
votes
1answer
365 views

Move Label Not Working

I'm using QGIS 3.2 and want to manually move a few labels on a layer but when I try to use the move labels tool I can't move them. I can however rotate and change them using those tools. I looked in ...
2
votes
1answer
82 views

Lat Lon Digitize tool not working with MULTIPOINT in QGIS?

I don't know what is a reason but in QGIS 3.2 "Lat Lon Digitize" tool doesn't work with MULTIPOINT, it works only with POINT layers. Is it a bug?
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0answers
33 views

Function process diagram of cut polygon tool

As far as the Cut Polygon tool from the Editor toolbar is concerned, polygons can be cut into two or more shapes according to that line drawn by a user. Where can I get a detailed function process ...
4
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0answers
51 views

Is there a specific tool to globally manage visibility/theme in QGIS?

In short : I'm looking for a Visibility Manager (QGIS 2.18) ou Theme Manager (3.0). I couldn't find it in the QGIS plugin list or in different methods on gis.stack. Maybe I missed it and maybe it ...
2
votes
1answer
247 views

Using Polygon centroids tool - points aren't always inside polygon, can I fix that?

When I use Polygon centroid tool, points aren't always inside polygon, because some polygons have weird shape with holes inside them. I have big amount of polygons and I need to use this tool and I ...
1
vote
0answers
93 views

Convert Raster to grid [duplicate]

I want to convert or a raster into a grid. I am with QGIS. I have a raster of a parcel. I have a vector grid of the same area. I want to add in each block of the grid a mean value of the raster. ...
0
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0answers
26 views

Tiling image to be used with Google Maps?

I have a 2880 x 2880 image that I would like to tile so that it replace the entire usual world map. So far I got this working gdal2tiles.py -p raster -z 0-6 5KNewMap.png abc3/ but for the zoom ...
0
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0answers
35 views

Densify tool equivalent for Basic ArcGIS License?

I'm looking for a tool/script/quicker process that does the same thing as the standard license's densify tool. I'm only using a basic license though. Just wondering if there was anything out there ...
0
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0answers
47 views

Fast implementation of polygon overlay tools in osgeo suit

I am currently using symmetrical difference, difference and intersect tools from standard QGis implementation in python (I use pyqgis). I do topological checks ie. if Fc1 is contained within Fc2. ...
1
vote
1answer
142 views

Opensource Metadata management tool [duplicate]

I am looking for an opensource web based metadata management tool for geographic data. I have gone through a related question: Seeking Open Source ISO Metadata Editor? First of all it was asked six ...
0
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2answers
61 views

Adding a Tool to a DockableWindow add-in

I have inherited a C# ESRI (ArcMap) add-in that needs a UI tweak (the rest of the changes are completed). And I had no previous experience with such add-ins before starting on this. The add-in in ...
1
vote
1answer
123 views

Is there any tool for coordinate system detection from a point coordinate?

I have bounding box points below; -20037508.34, -20037508.34, 20037508.34, 20037508.34 Let's think about a tool that gives one of these points as an input and returns the coordinate system/...
3
votes
1answer
129 views

QGIS Densify Geometries based on expression

I tried using the Expression Based Input in the Densify Geometries tool with the following expression: attribute( $currentfeature ,'VertNum') where VertNum is a field in the attribute table that ...
1
vote
2answers
211 views

Pause drawing button (plus others) missing from view window

The pause-drawing, refresh, and data/layout toggle buttons have disappeared from my view window. I'm using ArcGIS Desktop Standard 10.4.1. I've not upgraded recently or made any changes to the ArcMap ...
1
vote
1answer
124 views

QGIS python error for XY tools plug in, even after installing xlrd and xlw modules!

As I am a complete beginner, I had troubles getting the XY tools plug in running. Now that the xlrd and xlw module error has disappeared after installment of said modules, I can finally choose the X ...
4
votes
1answer
198 views

Add new actions to identify feature context menu

How can i add new actions to identify feature context menu, i mean when selecting a feature with identify tool and right click on the selected feature, here i want to add new actions to the popup menu....
1
vote
1answer
932 views

Are there any free online GIS courses based around using QGIS? [duplicate]

Does anyone know of any MOOCs for learning GIS which use QGIS for any practical exercises? I've been finding QGIS a fantastic tool for work, but would like to understand it and GIS principles on a ...
1
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0answers
36 views

“Data management tools” does not exist under “Vector layer”? [duplicate]

I am using QGIS 2.18.12 and I need to calculate the area of overlap between two shapefiles. Help I've already found for this problem says to use "Data management tools" under "Vector layer" but the ...
0
votes
1answer
102 views

Any way to create polygons with brush-like tool?

I’m making a hiking map for a small range of mountains. I’d like to show surface coverage, including a few broad categories of vegetation type, rock, sand, etc. I’d like to do this as vector data. I ...
0
votes
1answer
160 views

Opening script in Toolset using GPToolDialog()?

I need to open a Python Script using GPToolDialog(), but the script is in a Toolset, not in the Toolbox main path. I tried many ways to solve but do not work, examples: Example 1: pythonaddins....
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0answers
74 views

Python script from Python Toolbox do not work and show no error

I have a Python ToolBox with two Custom Python Scripts. The first one works well, but when I try to run the second, there is no errors, but the operation do not run. import arcpy class Toolbox(...
3
votes
0answers
376 views

Error: 'Raster map not found' in QGIS 2.18.1 GRASS tools

I get the same error in multiple QGIS GRASS tools and I don't understand the error. I have a raster surface height map with some no data spaces I want to fill. The error occurs when using r....
3
votes
2answers
749 views

Adding buffer in Leaflet?

i'm newbie in GIS. i'm trying to make webgis using leaflet. i already make layer with icon in leaflet. /*layer*/ var layer = new L.GeoJSON.AJAX("GIS/layer/request_layer.php", { ...
3
votes
1answer
308 views

Make this the only selectable layer (greyed out)

Someone else has tried Creating shortcut (button) for "Make this the only selectable layer" in Python 2.6? but, as pointed out there, the answer doesn't work. When adding "Make this the ...
-4
votes
1answer
1k views

Generate flood map using qgis [closed]

How can I generate a flood inundation map and flood depth using QGIS within 3 hours?
1
vote
1answer
87 views

How to add a prefix to unique ID using Attribute Assistant?

I want to add a prefix to my unique id field; for example, “MH123”. I am currently using Attribute Assistant Tool. How can I edit my Dynamic Value Table to add a prefix to my unique ID?
4
votes
2answers
218 views

Determining best neighbourhood search radius for Topographic Position Index (TPI) for predictive soil mapping?

I'm not sure how to determine the best input values for a search radius to create a TPI for the purpose of predictive soil mapping. Would this depend on the spatial extent of the area I wish to map?...
0
votes
1answer
130 views

How to fix unusual initial DEM input values and derivative raster output values in SAGA GIS without rescaling?

I am trying to run elevation derivative tools on a provincial DEM provided by the Ontario Government website (Ministry of Natural Resources and Forestry) and I am getting strange values when bringing ...
2
votes
1answer
150 views

How would I determine my search radius when conducting a Topographic Position Index in SAGA GIS?

When running the TPI tool in SAGA, I get this parameter-entry window: Under the section highlighted in the red box, what do these parameters mean? Do the search/neighbourhood grouping parameters mean ...
0
votes
1answer
329 views

Creating Topographic Position Index in SAGA GIS?

I am trying to create a TPI from a DEM tiff file in SAGA but keep getting the following result: I'm just not sure what I'm doing wrong.
5
votes
1answer
303 views

QGIS Calculating Line Lengths and Statistics

I am working through this tutorial: http://www.qgistutorials.com/en/docs/calculating_line_lengths.html In the tutorial we import a shapefile map of railroads,clip the data through a selection/...
1
vote
0answers
236 views

How to show and access SAGA not shown in Processing Panel in QGIS 2.18.4? [closed]

How to get SAGA modules to show and be usable within QGIS, i.e. from within the Processing Panel? I have tried reinstalling SAGA (now = Version: 2.1.2 64 bit) through the OSGEO4w installer and tried ...
1
vote
2answers
42 views

Retrieving color information about pixels beneath polygon in ArcGIS Desktop?

I am using ArcGIS for a geology mapping project. I've mapped 500+ features as polygons using a basemap of a planet's surface. I want to get information regarding the "darkness," that is, the greyscale ...
2
votes
1answer
192 views

Selecting features on PostGIS table from QGIS?

I use QGIS 2.14.11-Essen and PostGIS 2.1.8. This is an issue I had not with previous QGIS versions. I work with LTR version for my work so upgrade to current version (2.18.3) is not possible for now. ...
5
votes
1answer
198 views

Evaluating training samples for supervised image classification in ArcGIS Pro?

Its my first time using ArcGIS Pro and I have started doing a supervised classification. In most software you have some tools such as histograms, scatterplots and/or statistics to evaluate training ...
3
votes
0answers
29 views

Volume calculation using Mosaic & Cut Tools [closed]

I'm new to ArcGIS and I'm taking an introductory course for it. I have a problem trying to quantify the volume of a lake. The lake is enclosed by two dams which are to be extended from 1909 to 1932 m....
2
votes
1answer
206 views

Algorithm for Cost Connectivity tool of ArcGIS Spatial Analyst?

For the Cost Connectivity tool in the Spatial Analyst toolbox, what is the algorithm used to compute the minimum spanning tree? The ArcGIS website includes a general description of how the cost ...
5
votes
1answer
602 views

Activating 'missing' standard GRASS utilities in QGIS Processing toolbox

I have been using QGIS and Grass for ages and while I've noticed this issue before, I've not been bothered by it until now. It is (hopefully) a bit of a noob question but when I open GRASS in the ...