Questions tagged [display]

Visual representation of data

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30
votes
3answers
36k views

Displaying only selected features on map in QGIS?

Not sure if this option ever existed, but the new QGIS version hides a lot of things somewhere else and this seems so simple that I'm kind of convinced it was possible to do this before. I have quite ...
20
votes
6answers
15k views

How to improve rendering performance of a very large shapefile?

I have a polygon shapefile that has a 100MB .dbf, and 500MB .shp file component. The reason it is so large, is that it is classified as a landbase for a whole district. Everytime I view the file in ...
8
votes
1answer
6k views

what dictates the drawing order of overlapping features with in the same layer/feature class in ArcGIS?

I know that in ArcGIS drawing order is controlled by layers, and if I want to make some features be drawn on top of other features I can use definition queries to separate them into different layers ...
3
votes
1answer
121 views

How to combine several datapoints in one location to a single point varying in size accordingly?

This might be a very simple thing, but I just can't figure it out how to do it in QGIS (alternatively I'm also grateful for explanations for ArcGIS). I have a fisheries dataset with multiple catches ...
2
votes
4answers
404 views

Workaround for AxMapControl painting issue (only problematic at certain screen resolutions)?

I have a .NET application dependent on ArcGIS 9.3.1 which I am upgrading to ArcGIS 10. I have an AxMapControl sat in a panel in a split container on a tab. The Dockstyle is set to Fill. Since ...
0
votes
2answers
277 views

Displaying multiple sea level scenarios?

I'm trying to display a number of sea level scenarios to discuss landscape differences across time. I've created a CTM of the region now I need to display sea level at a number of reduced levels (e.g. ...
12
votes
3answers
3k views

How to Display Overlapping Lines?

I have multiple line layers that represent bus routes and many of the routes overlap (i.e. near terminals, transfer locations, etc.) Is there a function in Qgis which will display both features next/...
9
votes
3answers
4k views

Displaying raster Background Value as hollow for more than one set of RGB values using ArcMap?

I have two overlapping .ecw layers of the same area, though one is clipped in the middle, with a white edge. When I set the background value to 255,255,255, and define it as hollow, it only hollows ...
1
vote
4answers
15k views

How to display some contour lines and hide others?

I'm using ArcGIS 10.2 to show this contour lines information: http://prntscr.com/4ncvc2 They're displayed with a 10 meter contour interval, but I want to display for example each 50 meters and hide ...
4
votes
2answers
1k views

Change a raster from longitude display (-180, 180) to (0, 360)

Using R software, I want to modify the attached raster in order to visualize it centered on the Pacific Ocean. Indeed, I need to show the entire Oceania: in my opinion I have to shift from (-180,180) ...
7
votes
1answer
682 views

Auto-Update Color-Ramp to Current Display Extent

When displaying raster files in Qgis with the color-ramp stretched to the min/max values of the current display extent, the min/max values don't update automatically when zooming or panning to a new ...
3
votes
1answer
5k views

ArcMap not recognising CSV file headings?

I can't get my maps to work because of an issue I'm having with my CSV files. I'm trying to import coordinates and heights of wind turbines, and radius for a viewshed analysis and it works on the ...
3
votes
2answers
479 views

Display value relation QGIS

I have layers loaded from PostGIS into QGIS(2.14). Since it is a database and I try to respect the normalization rules, datas are not always stored directly into the layer table, and sometimes they ...
1
vote
2answers
1k views

Hiding specific icons/markers on text generated vector layer

I'm displaying a vector layer with pois, generated from a text file: lat lon icon iconSize iconOffset title description 56.030325 14.4774116666667 http://www.medinsbiologi.se/hano/Foto....