Annotating data on a map using text and/or graphics.

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34
votes
3answers
7k views

LatLon or LonLat, what's the “right” way to display coordinates and inputs?

I'm trying to get a sense if this is an issue for others or every input/output should be labeled so user is not confused and just go with it? I think almost everyone pronounces it as "LatLon". Who ...
13
votes
3answers
3k views

Idiots guide to expressions for QGIS

I have no formal training in GIS and have learned on the fly with ArcGIS 9.3 at work and have been dabbling with QGIS on my own time for my business. Is there any resource recommendations ingeneral ...
12
votes
13answers
19k views

Labels not appearing on any layer in ArcMap?

Not sure what the issue is, but I'm unable to get labels to display in ArcMap 10. The obvious things are accounted for (as far as I know). Labels are set in Properties, layers are checked to label in ...
12
votes
4answers
2k views

How to place elevation numbers on contours with uphill orientation and position?

I want to orient my elevation labels uphill. Is that possible? I'm currently using the labeling tool from QGIS (not that one in layer settings). I want the labels curved and uphill oriented (and I ...
11
votes
2answers
4k views

How to use label classes, expressions, and annotations?

I've always found that when it comes to python, vector analysis, QGIS gives ArcGIS a run for its money, hell some of the qgis plugins exceed ArcGIS's performance by a few hours; however, I always have ...
10
votes
3answers
328 views

What's the convention for “upside down” labels?

I have line features that are to be used for labels. These lines are correctly oriented(rotated) and positioned such that text placed on them should give a good cartographic output. Compare the below ...
10
votes
1answer
544 views

Is there a way to add a “current user” label to the print composer?

Is there a way to add a current user label to the print composer in QGIS. I thought there might be something similar to the $CURRENT_DATE format available. This would be in a windows environment.
10
votes
3answers
521 views

Contours: Interrupt contour lines beneath a elevation number

Is there a way to interrupt a contour line beneath a elevation number? Thanks!
9
votes
4answers
642 views

Are there any cartography “rules” you should follow when labeling maps?

We've all seen poorly labeled maps before. In these maps, the wording is either illegible or unpleasant to view due to positioning, color choice or size, or the labels take up so much map space that ...
9
votes
5answers
1k views

Measuring straightness of a curve segment (represented as a polyline)

I'm working on an automatic elevation contour labeling algorithm and one of the factors that I want to take into account when deciding the positions of labels is how "straight" a particular segment of ...
9
votes
2answers
1k views

How to only show labels for an arbitrary selection of items?

I'm curious how others go about solving this problem: You've created a map for something with a large number of features that are labeled. The customer/client asks that you only show labels for X, Y ...
9
votes
1answer
196 views

Advanced labeling formatting (centered and different sizes)

I would like to place the elevation-number of a point in a different front size and centred under its name: Is that possible? (That is my actual labeling: label || '\n' || elevation) Thanks!
9
votes
6answers
671 views

How are labels dynamically placed on a line or polygon?

I was wondering if anyone knew the math involved, or resources for learning the math involved, in finding the ideal position, scale, and rotation of a label for a line or polygon on a map? The most ...
9
votes
3answers
1k views

How to prevent text labels from overlapping other markers?

Is their a way within QGIS to prevent text labels from overlapping icons used to label a point layer? In the example map shown below, there are two layers: Roads layer which is labeled using the ...
9
votes
2answers
215 views

Is there a method to have the colour of a label automatically match the colour of the polygon indicated in the symbology tab?

My job requires that I produce several print maps every day, for a variety of different users. It is usually pretty straight-forward, but sometimes I have to make a map that uses rather ...
8
votes
2answers
955 views

Is there a way to turn off all labels in ArcMap without clicking on every layer?

I rarely bother with labels, but sometimes it would be nice to toggle them on/off. Something like the Pause Drawing button, except that it would only turn off labels (all labels in all layers...not ...
8
votes
1answer
2k views

How to add labels outside of features?

I'm trying to achieve this kind of labeling using QGIS. Apparently, it doesn't seem to be easily supported. Would you have an idea for a workaround ? I managed to have circled text using ...
7
votes
2answers
215 views

How to create vertical labels in QGIS?

How to create vertical labels (each label in new line) like: 1998 150 pipe name and not horizontal: 1998 150 pipe name
7
votes
3answers
2k views

Label Expressions to replace null values with text not in feature class

I need to label some hydrants (points) - some of these belong to the fire brigade and have a number assigned to them, some do not and thus do not have a number. I would like to write an expression ...
7
votes
1answer
635 views

Label legend interval with number of elements - ArcMap 10

I have made a series of choropleth maps in ArcMap 10. When I classify the interval the bottom of the dialogue tells how many elements are in the class. Is it possible to have this number ...
7
votes
3answers
3k views

Label points at regular intervals using ArcGIS for Desktop?

I'm working with lines on roads represented by a large number of sequencial points. Since labeling all of them would make the points impossible to identify, I'd like to know if there is a way to label ...
6
votes
2answers
5k views

Is there a way to manually place labels in QGIS?

Is there a way to manually place labels in QGIS? I have a map which has almost-duplicate labels in some places (e.g. E 1st St and 1st St) and I'd like to remove some of them. Also, I'd like to move ...
6
votes
2answers
446 views

How to simply label raster cells?

I think the title says everything but: I want to generate a small sample raster (eg. euclidean distance or cost distance) to explain the method of cost-distance analysis, and I'd like to label the ...
6
votes
2answers
2k views

What are valid values for “data defined” labeling settings?

I'm using QGIS 1.8. I'd like to customize label features on an existing shapefile using the new label engine and it's "data defined settings" option. I'd like to know what the attribute table field ...
6
votes
2answers
3k views

Can I alter font size using label expression?

I have two label classes displaying dynamically over my parcel polygons. The owner info is the major label with larger font size and bellow it I am displaying some property type info in smaller font. ...
6
votes
2answers
713 views

How is the default label field chosen by ArcMap?

I have 2 questions: I know how to manually go to Layer Properties>Labels tab>Label Field and choose my label field. I also know that I could set up my primary label field and save the setting as a ...
6
votes
2answers
412 views

How to Center Text in Multiline Labels

I used wrap text on "~" and now I have two lines of text from one attribute field. Is there a way to center that and not just choosing center as the horizontal alignment? QGIS 1.8.
6
votes
1answer
630 views

ArcMap 10: How do I escape certain characters when labeling?

I am labeling certain Oil & Gas areas by Operator in ArcMap 10, using this expression: "" & [OPERATOR] & "" & vbNewline & "" & [UNIT_NAME] & "" The only problem is ...
6
votes
2answers
6k views

Why are my labels overlapping in ArcGIS 10?

Please excuse what may be a very newbie question. I'm not new to GIS, but just learning ArcGIS. I have been led to believe that the standard labeling engine doesn't allow any overlap: ...
6
votes
2answers
3k views

How to move labels in QGIS?

I'm trying to manually move labels but having some trouble. I'm trying to move the labels while in edit mode. I've added fields for x coordinate (all null), y coordinate (all null), rotation (all =0), ...
6
votes
1answer
496 views

How to label a lot of nearby points?

I am currently working with a lot of points of which every point has to be labeled. I am already using the "Easy Custom Labeling" tool to move the labels and create lines to connect points with ...
6
votes
2answers
937 views

Formatting Dates in QGIS labels

I would like to display a date field as a label. The data is from a shapefile. The field in question is a date field. When I use the date field for the label, it displays in the yyyy/mm/dd format. I ...
6
votes
1answer
208 views

How to position callout bubble leader using maplex?

I'm using data driven pages to produce a number of maps. I'm using Maplex to have a callout bubble labeling my features. The problem is that for about 5% of the features, the callout bubble is not ...
6
votes
1answer
543 views

ArcGIS 10 - Text background not showing up when exporting

I have highways labeled with the standard shield and route number on it. For my main data frame the labels come up correctly. I also have 4 inset maps where only the number will show up, not the ...
6
votes
3answers
210 views

Automating an ArcGIS Project that is a display of map

I'm relatively new to GIS and looking to automate a project. I have my 'base map' created in ArcGIS, but now need to create several hundred more so looking for an automated method to accomplish this. ...
5
votes
3answers
152 views

How to label only some places instead of all?

How do I turn of some place names, or rather turn on some places names but not the rest. How do I turn of or hide that? [s]I also get a red cross under the place names which I dont like to see. How do ...
5
votes
3answers
185 views

Do Label Expressions Slow Down Drawing Speed?

Further to my earlier question about using different fonts on the same PC, I am wondering if label expressions would slow down drawing speed for a MXD? Here is my label expression: def FindLabel ( ...
5
votes
2answers
2k views

How to disable polygon Label on the vertices (OpenLayers) in Edit Mode

I added the style on the polygon layer like so. var style = $.extend(true, {}, OpenLayers.Feature.Vector.style['default']); // get a copy of the default style style.label = "1233456 ha" ...
5
votes
2answers
616 views

Not all labels created in ArcGIS

I have a set of polygons in ArcGIS 10, which I want to label. Despite setting the Unplaced label icon to "on" and using an expression for the label (so that all objects should be labelled), not all ...
5
votes
2answers
423 views

How to accomplish conditional labeling based on map scale and attribute in QGIS 1.7

How can I label with qgis 1.7, based on attribute and scale of map? For example scale>1:1000 then label all those features whose area>100000 at font size 12 and those features whose area<99999 at ...
5
votes
2answers
91 views

Removing features whose labels are not displayed?

Using ArcMap 10.0, I am working on a map that shows many villages. Each village has a name attribute that I want to use for a label, but in some areas there are so many villages that not all can be ...
5
votes
1answer
1k views

Polygon label repeated for each tile

I'm using the standalone GeoWebCache to serv tiles from a remote GeoServer. My problem is that the polygon label is added to each one of the tiles served, instead of only once in the polygon centroid. ...
5
votes
2answers
967 views

How to create curved labels in QGIS

I added an image, that explains my demand (see Schiefelsbach river). How can I do this? thanks
5
votes
3answers
2k views

Labels aren't showing up when I convert from .mxd to .kml

I've been trying to convert a map from .mxd to .kml for google earth. The map has municipalities labeled as well as train stations. When I save it and open it in Google Earth, only the train station ...
5
votes
2answers
1k views

Slow Labeling in ArcMap 10 (ArcView License)

We recently updated most of our users to ArcGIS10. One of my users is having an issue with incredibly slow labeling in ArcMap. The shapefile geometry displays right away, but the labels take minutes ...
5
votes
1answer
3k views

Are there any good alternatives to the Maplex (ESRI) labeling engine?

I am running ArcGIS 10 (ArcView) with the standard labeling engine. I am very familiar with Maplex and have used it in the past but it still lacked the "feature-linked" functionality given the type of ...
5
votes
2answers
1k views

How to do advanced Python labeling in Arcmap?

Does anyone have a good reference for advanced/complicated labeling expressions in Arcmap? I am attempting to write a Python label expression that would involve multiple label definitions. Here is ...
5
votes
1answer
1k views

How to get labels to diplay in Google Earth after saving to KML?

When saving a QGIS layer as kml, is it possible to have labels be displayed when opened in Google Earth?
5
votes
4answers
1k views

How do I automate custom edge labels for township range in ArcGIS 10?

I need to label township ranges along the side and top of my map, respectively. I know the grid in the frame properties is a way to label the edges with lat/lon. I Think there is a way to do the same ...
5
votes
2answers
3k views

Placing label designs in the legend - Is it possible in ArcGIS 9.3.1?

I'm working in ArcGIS 9.3.1 and apart from "regular" slayers with symbology, I have a few layers which I do not show their symbol on the map, but only their label (for example: cities layer in which ...