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Questions tagged [digitizing]

The process of converting features on a map or image (either hardcopy or digital) to vector-based data in digital format.

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1
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1answer
119 views

Digitizing custom road for ArcGIS Network Analyst?

I've built my network and now I am creating custom bus routes. However, one of my bus routes makes a stop on a private road that I had not realized was included in my network. How should I go about ...
0
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1answer
85 views

Touched lines but not connected in ArcGIS 10.x

Ι convert a contour file DWG to SHP file. The lines are touched but disconnected and they are broken in many places. Is there an automated way with a particular tolerance to automatically connect the ...
4
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2answers
257 views

Is it possible to have presets for digitizing in QGIS?

I want to digitize many identical features (same attributes). They will have different location. Type: points and lines. Is it possible to have presets? Like to select: "traffic calming" and then all ...
2
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0answers
168 views

Topology Checking issue in Qgis 2.14.1

I am working on a large data set of Road with snapping tolerance 5px with topological editing option enable. When i am zooming to the snapped vertex with zoom level upto 1:50, its looking snapped or ...
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0answers
332 views

Shapefiles not editable anymore?

From this morning if I open a qgis project all the shapefiles are not editable anymore. I've tried different projects in both 2.14 and 2.16 qgis versions. Has anyone encountered the same problem?
4
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0answers
730 views

“Error” on Advanced Digitizing Window in QGIS [closed]

I have the word "Error" that has appeared on my Advanced Digitizing Panel since upgrading to QGIS 2.12.0 Lyon. It doesn't appear to actually affect anything negatively... has anyone else seen this or ...
1
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2answers
4k views

Converting *.jpg scanned from line paper map to vector data in ArcGIS for Desktop?

I want to digitize automatically old paper map that scanned to jpg . I know that it's possible to digitize it with arc-map but I can not remember how to do it.
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2answers
2k views

Auto digitizing features on map? [duplicate]

I'm new to digitization. I have the following map and I'm trying to digitize the purple features. Is there any way to automatically digitize all the purple lines on the map.
0
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1answer
198 views

Same Image and Shapefile are not overlapping in ArcGIS for Desktop?

An image is Digitized in ArcView 3.3 with JPEG extension; But not with Image analysis extension. When I open that image and shapefile in ArcGIS 10.1 for Desktop then they are not overlaping each ...
0
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1answer
174 views

Digitizing geological information with MapInfo?

Due to vast information included in a geological map, I really need to find a way to digitize some features (mostly lines) in a rapid way. "Click-by-click" method will cost me some millions of years ...
1
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1answer
741 views

How to change the QGIS edit cursor and node icons?

Two things I really dislike at QGIS, are the "fat" node icons (when editing lines) and the cursor which cover the object below and make it impossible to accurately move a node. Is it possible to ...
1
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1answer
788 views

How to suppress advanced digitizing tool window

I'm using QGis for years but suddenly I stuck with something that I'm sure it's an easy fix. Every time I start to create a new feature, the Advanced Digitizing tool window pops up. Do you know how to ...
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2answers
124 views

Digitizing in ArcGIS for Desktop? [closed]

What are the quickest and easiest ways of digitizing in ArcMap? I want to digitize pipelines on a pipe network map.
3
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0answers
684 views

Troubleshoot with “Split selected features with selected line from another layer”

I am trying to use the "Split selected features with selected line from another layer" tool from the plugin Digitizing Tools in QGIS. Sometimes, this tool works with my shapefiles but sometimes it ...
2
votes
2answers
934 views

Suitable Raster processing methods to extract field boundaries from images

I'm trying to extract field boundaries and features from a lot of aerial images of agricultural land - and avoid digitizing these features manually. I've managed to get a crude raster file of the ...
2
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0answers
70 views

Making perfect rectangle in QGIS [duplicate]

I want to be able to set the height and width of my rectangles, as well as the angles. I have been trying the Rectangles Ovals Digitizing plugin, but I can't seem to make it do anything (besides turn ...
7
votes
2answers
18k views

Showing polyline direction in ArcGIS for Desktop (ArcMap)?

How can I show the direction of a polyline as it was digitised? I need this to check if my network analysis is obeying one way streets. I know of a tool in Xtools that can do this but my trial ...
1
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0answers
52 views

QGIS - snapping points onto lines [duplicate]

I have two layers, one is point layer and other one is a line layer. I want the point features to snap on to the lines, but the points are away from the lines. Is there any way to move the points onto ...
9
votes
2answers
920 views

Automatic numbering of points during digitization in QGIS?

Does somebody know how to automatically number the points during digitization in Qgis. To explain, when I create the new point there is the window where I must to type the point number. Is there any ...
3
votes
3answers
460 views

In transferring a family cemetery layout to a digital format, I need a software program [closed]

We have a large historic family cemetery. I've had surveying experience, drafting in the days when it was done by hand, and a lot of real estate experience with deed descriptions and layouts on maps. ...
3
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0answers
387 views

Geometry issues when digitising in QGIS

I'm digitising a large number of maps from hand drawn mud maps and digital images, and although I have used the snapping tools ("snap to vertex and segment", Tolerance 10 pixels, avoid intersections) ...
0
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1answer
37 views

Resources for digitizing in webmap and export? [closed]

Its possible with Google Map API to draw geometries and points. And exporting as well I assume. Is there other alternatives, probably based on Java that can do the same job? I've been researching on ...
4
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2answers
2k views

Changing QGIS cursor size and color?

I'm digitizing some old topographic maps (scanned images), and these maps are in grayscale. When in editing mode, to draw the contour lines, I would like to be able to change the color and size of ...
1
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1answer
576 views

Steps to digitize OpenStreetMap in QGIS?

I am new to QGIS. Can someone help me with the steps to digitize OpenStreetMap? Or should I save the particular area I want to digitize into .tiff files and then try to digitize the .tiff file?
1
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1answer
38 views

Digitizing 2-node lines?

I tried digitizing in to a new sqlite line layer with autoincrement id ticked..... I want to create a 2-node line, but there seems to be a minimum limit of 3 nodes. Is this correct or am I doing ...
3
votes
1answer
181 views

Change direction of polylines from DEM data

I am trying to define the direction of my polylines (which represent gutters in a drainage system). Does anyone know if it is possible to define the direction based on elevation data extracted from a ...
5
votes
1answer
839 views

How to split a polygon into multiples sections in QGIS?

I am working on QGIS latest version 2.12.3. I am digitizing a polygon. It represents a riparian buffer of a river. The polygon made a continuous « loop » with a widht of 50 meters. I want to split my ...
2
votes
2answers
545 views

Drawing a polygon of a given area

First, I am using QGIS 2.8.2. I have GPS waypoints and satellite imagery and am trying to draw polygons. This is easy enough, but I need to make sure each polygon is 1ha exactly. Is there a way to ...
1
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0answers
78 views

salt marsh recession mapping with landsat/WV, IKONOS) [closed]

I am trying to detect timing and pattern of change in a particular salt marsh (low marsh sitting close to a high marsh). Basically, I'm interested in detecting changes in the leading edge for ...
4
votes
2answers
601 views

How to create in QGIS shapefile a field that automatically returns the current date

I'm digitizing a shapefile in QGIS and I need to create a field that returns automatically the current date.
3
votes
1answer
402 views

Keeping streaming on in ArcMap when switching editing tools?

I have this problem constantly, because I digitize for work. No one there has figured this out and I was wondering if someone can tell me how to do this, because I'm tired of constantly hitting F8 and ...
5
votes
4answers
1k views

Editing with auxiliary features (lines, points etc.) in ArcGIS Desktop?

In order to digitize exact features in ArcGIS Desktop 9.3.1, our draftsman would like to use auxiliary features (lines and points mostly) that don't have to be saved later on. I told them the easiest ...
2
votes
1answer
67 views

Automatic selection of colored regions when digitzing choropleth maps

I am new to working with GIS. I have a raster choropleth map similar to the one displayed below. I want to create a shapefile from the map, where each layer contains all the countries that have the ...
1
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3answers
3k views

Auto populating XY fields when new point feature digitized using ArcGIS Desktop?

Is there a way for ArcGIS Desktop to populate a field automatically when a new point is dropped on the map? We have our map in State Plane Feet, and we want to the database to automatically add WGS ...
-1
votes
1answer
104 views

How are digital maps generated? [closed]

This is a more of a noob GIS question. How are all the features on the maps we come use know and love (Google Maps, Bing Maps) generated from imagery? Does somebody actually look at the imagery and ...
1
vote
1answer
185 views

Connecting vertices to form a line without using an attribute

I have a number of multipoint features that form lines (hiking trails). I would like to connect the dots of each multipoint feature to generate line features, but there are no attributes with which to ...
3
votes
0answers
232 views

How to avoid topology errors when digitizing a road network?

I am working on a road layer project. For the snapping option I'm using the mode to vertex and segment and tolerance 5 pixels. When zooming in (to the max) I do not notice a gap. But when I use the ...
0
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1answer
82 views

Niche MapInfo Question : Digitising options

I've recently started using mapinfo to digitise on a daily basis, I am usually georefencing old deeds (on top of OS Mastermap) and then digitising them. The problem is when drawing the polygon the ...
1
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2answers
372 views

Edit Geometry with digitizing tools in QGIS of a postgis layer

I have a multiline PostGIS layer added to my QGIS 2.10.1 Pisa. I'm able to add features using the digitizing tools, but I'm not able to use the delete or node tool. It remains gray even if I'm in ...
1
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0answers
205 views

Rotate functions in “Rectangles, Ovals Digitizing” as well as “Advanced Digitizing” distort shape dimensions

I am trying to rotate squares via the rotate tool in the "Rectangles Ovals Digitizing" Plugin in QGIS. The dimensions/proportions of the sides, however, are distorted whenever I do so. Any idea of why ...
1
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2answers
76 views

USGS National Map Ortho - Digitizing

As a part of project scope we have to deliver to the Client digitized data sets – some houses and roads. Can we use USGS Orthoimagery from The National Map layer for feature digitizing? http://www....
1
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0answers
32 views

Fill of sketch polygon blocks view of what I'm trying to digitize

I am trying to digitize polygons using QGIS 2.10.1-Pisa, but the red fill of the sketch polygon blocks me from seeing the imagery that I need in order to draw said polygon. I have tried going into ...
1
vote
1answer
173 views

Mapbox Satellite - Digitizing

As a part of project scope we have to deliver to the Client digitized data sets – some houses and roads. Can we use Mapbox Satellite global imagery layer [1] under Professional plan [2] for feature ...
4
votes
3answers
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 ...
7
votes
1answer
7k views

Is there a QGIS bezier curve tool?

I'm a recent convert to QGIS but have been confused about the lack of support for drawing curved shapefiles, especially when Arc has almost too many. A lot of the work that our consultancy do is based ...
2
votes
2answers
4k views

Create circle shapefile vector in QGIS

Is it possible to create a circle shapefile feature in QGIS, like it is possible to do in ArcMap? I am trying to digitise a map wich features roundabouts, which I'd like to be part of the same ...
1
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0answers
52 views

Digitising - Separate fill and line opacities (or remove fill)

I have a client who specialises in aerial photograph interpretation and is in the process of moving from AutoCAD to QGIS. They find the auto 'fill' when digitising polygons really disruptive and ...
1
vote
2answers
2k views

How to close a polyline in QGIS while digitizing?

We need to work on a line layer where some features are closed and some are open. The closed features need to be closed perfectly, so that the first and the last point of the polyline perfectly match. ...
1
vote
6answers
806 views

In what real-world examples do users still digitize features from a map?

Is digitizing of map features completely dead? For example, when and why do you still digitize features from a map? It can be heads digitizing up from a scanned paper map (or image, or whatever) or ...
1
vote
2answers
187 views

QGIS: digitized object disappear when filling in attributes

When digitizing, for example a point, the attribute window opens for you to fill in the pre-defined columns/information. But no point is shown in the map while you do this in QGIS 2.6. It was shown in ...