Questions tagged [tools]

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

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105 votes
16 answers
66k views

Identifying Coordinate System of Shapefile when Unknown?

I have a Shapefile but its coordinate system is Unknown, and there is no *.prj file. How can I identify it now?
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  • 3,606
21 votes
6 answers
696 views

Python for GIS on a thumb-drive

I'm looking at putting together a light Python install on a thumb drive that I can take to client offices and do some basic GIS processing. I'm thinking of installing the following: PyScripter Python ...
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  • 15.3k
17 votes
3 answers
2k views

Set of standard accessibility guidelines for online maps?

Recently I've been designing maps without navigation tools like the Zoom In/Out and Pan tools, or arrows to pan north, pan west, etc. Instead, most modern mapping APIs support the direct use of the ...
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  • 20.5k
16 votes
4 answers
29k views

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

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 ...
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  • 221
12 votes
7 answers
5k views

What are some of the OSX GIS tools

Most Opensource tools are cross platform; however, some GIS tools such as ArcGIS are platform specific (windows only). What are some of the GIS tools that are usable on the mac? EDIT Although thank ...
12 votes
7 answers
42k views

How can I manipulate the timestamps in a GPX file?

I have a GPS tracked stored in a GPX file. Now I'm looking for a tool that allows me to set the start time of the track and the duration, and the tool should automatically evenly distribute the ...
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12 votes
1 answer
5k views

Swipe tool in QGIS?

Is there any SWIPE tool in QGIS similar to what you have in ArcGIS.. What I am looking for is a tool to swap fast between two layers. I am comparing sidescan sonar mosaic against bathymetry for ...
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  • 121
12 votes
3 answers
1k views

Open Source Map Composing Tool

Are there any open source tools which can be used for map composing, preferably GUI based. I use Quantum GIS sparingly but I am interested to know if there are others. The tool must be able to read ...
11 votes
5 answers
10k views

Activating custom ITool from form without adding it to ArcMap AddIn toolbar?

I'm working on an add-in for ArcMap 10.0 that adds a toolbar to ArcMap. One command (OpenModelessDialogCommand) button on that toolbar opens a modeless WinForms dialog, from which a tool (MyTool) can ...
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  • 1,143
11 votes
3 answers
2k 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 ...
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  • 1,214
10 votes
9 answers
38k views

Generating regular sample points in a polygon

Is there a way I can generate regularly distributed sample points within a polygon using ArcGIS 10? I originally used Hawth's Tools to do this in 9.3, however I don't think this is possible in 10. ...
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10 votes
1 answer
14k views

How to update length property of feature class field in ArcGIS Desktop?

I have a feature class with a string field that I want to update the length from 10 to 25. Is there a way or a tool to update this property without having to create a new field and using field ...
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  • 34.6k
10 votes
2 answers
912 views

Can ArcGIS ModelBuilder open Excel file for manual editing, then feed those edits back into model?

I have been tasked with creating a model using ArcGIS ModelBuilder, that initially runs a couple of geoprocessing tasks, before then joining an Excel table to the result of those geoprocesses. However,...
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  • 797
9 votes
5 answers
394 views

Tools for (semi) automated woodland tracing from satelite images

I'm trying to draw woodlands in OpenStreetMap, using Yahoo sattelite images. JOSM editor has some plugins that try to automate the process - you have to click inside the area and the plugin finds the ...
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  • 193
9 votes
3 answers
1k views

Longitudinal Issues with NetCDF data

I am seeking advice on working with world data sets where the GCS has a positive range (0 degrees to 360 degrees). The data I am working with are NetCDF oceanographic data and have positive coordinate ...
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  • 143
8 votes
4 answers
5k 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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8 votes
5 answers
6k views

DIY easy and ~accurate small-scale landscape survey

Summary Is there any equipment that I can rent 'inexpensively' (less than $400) that would allow 1-2 people to accurately (+/- 6") capture the topography of hilly terrain of perhaps 250' on a ...
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  • 325
8 votes
3 answers
2k views

Embedding dynamic maps into PDF files?

Working in consulting, I found that sending clients PDF file with my embedded maps is one of the best ways to achieve a wow-effect from them. The latest pdf file formats all support the layers ...
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  • 2,812
8 votes
1 answer
4k views

How to enable GRASS-modules in QGIS?

I have the latest QuantumGIS-1.9.0-master from Github with python-modules support and full GRASS-integration (GRASS-4.6.3-RC2) on Linux. When opening the GRASS-tools plugin, it only displays six ...
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  • 2,126
8 votes
3 answers
2k views

Temporal Analysis Tool: Seeking

I am looking for an alternative tool (proprietary or FOSS) that matches the functionality of Temporal Analyst for ArcGIS by DHI Software. The best I could get was the QGIS plugin Time Manager ...
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  • 873
7 votes
6 answers
5k views

Is GIS a tool or a science? [closed]

Is GIS a tool or a science? There's a lengthy and dense paper on the matter here. Could someone offer a more digestible summary?
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7 votes
2 answers
3k views

Is it possible to have tool parameters appear only if clause met?

I'm writing an arcpy script for a tool that has a large number of parameters (around 10). About half of these are "dependent" (perhaps not in the technical sense of the term), as in [first parameter]...
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6 votes
2 answers
8k views

How to identify feature from multiple layers in QGIS?

I have recently migrated from ArcGIS to QGIS. Is there any way to identify a feature having multiple layers? I am currently working with about 400 shape files and need to know which is the one I'm ...
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6 votes
3 answers
4k views

How to determine elevation drop along stream with ArcGIS Desktop?

I need to calculate(estimate) hydraulic head(elevation drop) along a single river stream in order to find potential site for small hydropower plant. I have a DEM with 20m resolution and raster and ...
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6 votes
1 answer
505 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 ...
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  • 73
6 votes
1 answer
699 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/...
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  • 271
6 votes
0 answers
442 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 ...
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  • 7,508
5 votes
5 answers
6k 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 ...
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  • 165
5 votes
3 answers
496 views

Eliminating duplicates only if data is the same according to attributes

Having duplications in the data is quite natural and removing them is quite hard if we didn't have the same attributes. In QGIS there are tools to eliminate the duplications but only if the data is ...
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5 votes
1 answer
945 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 ...
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5 votes
1 answer
154 views

Tools for discovering spatial data defects

Spatial data often have defects that may include incomplete polygons, sleathers (non-uniform administrative boundaries), overlaps, having points that belong to more than one polygon, etc. I have a ...
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  • 1,766
5 votes
2 answers
1k views

Distribute points respect to features using Quantum Gis

I want to know if there is any tool to make points with respect to selected features in a theme? Using: vector, investigating tools, regular points you can do it but not with respect to a selected ...
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5 votes
2 answers
3k views

Recommended utility for editing of GEOJSON files

I have a geojson file with the boundaries and some very basic statistics (population) for all the counties in US. States are enumerated (1,2,...), not named. I also have a csv file with a ...
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  • 151
5 votes
2 answers
725 views

Adding 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....
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  • 422
4 votes
2 answers
4k views

Is there a way to configure ArcMap to persist the HTML popup window size?

I'm specifically asking for when the "Display HTML formatting" is configured as "As a table of the visible fields.", but I think all options behave the same way. My users click the HTML Popup tool, ...
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  • 14.4k
4 votes
2 answers
263 views

Viewing current users of map (mxd)?

Is anyone aware of a script or tool that would allow me to view what users have a paticular mxd open at one time? We are using ArcGIS Desktop 9.3.1.
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  • 6,122
4 votes
3 answers
1k views

"add feature" tool QGIS 2.0 - polygon fill blocks view of what I want to digitize

How can I change the settings on the vector "add feature" tool so the tool fill doesn't block my view of what I want to digitize? This problem popped up after I upgraded to QGIS 2.0 QGIS 2.0 Macbook ...
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4 votes
1 answer
274 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 ...
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4 votes
2 answers
503 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?...
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  • 91
4 votes
6 answers
3k views

What map source/API/tools are recommended to create Web GIS/Mapping application utilising Microsoft technologies? [closed]

I'm researching about technologies (around Microsoft tech) to create mapping application and would like to have advice/suggestions. Brief requirement to build mapping application with Microsoft ...
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  • 149
4 votes
1 answer
2k views

Merge to New Raster resulting a raster with cell value 0 to 255

I am using the mosaic to new raster tool to mosaic two rasters together, one 2-bit and one 4-bit, and the output raster has given all the previously nodata pixels the value 3. Some of the pixels in ...
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  • 43
4 votes
1 answer
2k views

Why is Python AddIn toolbar showing all "Missing" tools/buttons?

I am horribly new to coding with python. I made a toolbar using the wizard and old bits of VBA code. I created a button to search by map number, a tool to calculate area from UI and a second tool ...
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4 votes
1 answer
370 views

Closing MeasureTool Window

I'm activating the built in ArcGIS measure tool using the following code: ControlsMapMeasureTool measureTool = new ControlsMapMeasureToolClass(); measureTool.OnCreate(_axMapControl.Object); // set ...
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  • 71
4 votes
2 answers
1k views

Save multiple selection sets in QGIS

I'm looking for a feature in QGIS but I am not sure if it exists. I don't know the name of such feature, but I call it multiple selection sets. It exists in TransCAD and I find it very useful. It ...
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4 votes
1 answer
353 views

ArcGIS Editor Toolbar

Does anyone know how to change the properties of a vertex to keep 3 places after the decimal place? My problem is when I go to draw a line and snap to a point, the properties of the line I am drawing ...
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  • 239
4 votes
0 answers
906 views

Why doesn't the gml 3.1.1 schema validate with xmllint? [closed]

Running xmllint on the gml 3.1.1 schema fails, even though the release notes claim that this release was created to get the schema to validate using 'common tools'. There's questions about this on ...
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3 votes
1 answer
108 views

Getting point geometry by clicking at the map within QGIS plugin

From QGIS 3 Plugin Tutorial I need the example for getting a point geometry from clicking at the map. So I have a file point_tool.py: from qgis.gui import QgsMapTool, QgsMapToolEmitPoint from PyQt5....
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  • 1,186
3 votes
1 answer
270 views

Change default saving folder

Probably a basic issue, but still something that irks me and I can't find an answer online. I want to change the default folder for saving new shapes/processing outputs from "last used folder&...
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  • 12.7k
3 votes
1 answer
2k 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 ...
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  • 173
3 votes
1 answer
555 views

Adding individual processing tool (e.g. buffer) onto toolbar in QGIS

I am no programmer so I do not understand how to create a plugin to add a button to the toolbar. Is there another simpler way to do so in QGIS? I only need a few tools from the ftools suite and do not ...
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