The ability to make a GIS layer transparent. That is, the ability to adjust the opacity or transparency of a layer to allow information below the layer to be visible.

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10
votes
2answers
6k views

How to create a transparent box in the map layout?

Is there a way to create a transparent box in the ArcGIS layout view similar to the one in the screenshot? I have tried without success adding a transparent box by inserting a neatline, adding a new ...
10
votes
2answers
6k views

Displaying transparent overlapping polygons in ArcGIS for Desktop?

I'm trying to draw home range maps in ArcGIS 10.1 and am having difficulty displaying them as I would like. The home ranges are in the form of polygons and many of them overlap. I'm trying to get a ...
8
votes
2answers
179 views

How to set transparency to multiple raster values with Python

With the following code I can set 100% transparency to raster value 0: map=None for lyr in QgsMapLayerRegistry.instance().mapLayers().values(): if lyr.name() == "some_layer": map= lyr tr=None ...
6
votes
6answers
10k views

ArcObjects - Create and Draw a Transparent Polygon

I'm trying to create a transparent Polygon in ArcMap; however, it's never transparent. Here's the code I have. // Create polygon IPolygon polygon = new PolygonClass(); // create & add points,......
6
votes
4answers
2k views

How to set the transparency for multiple layers or add a global transparancy preference?

How can I set the transparency to 27 % for all 245 layers in QGIS? The only way I know of is by right clicking on the layer name, selecting Properties, then Transparency and then moving the ...
6
votes
2answers
746 views

How to alter transparency by spatial location

I'm trying to create a map that has a all layers within a subject area having 0% transparency (full opaque), while features outside that area (defined by a polygon shapefile) having a reduced ...
6
votes
3answers
8k views

How to make transparent the background of a topographic map in QGis 1.8.0?

I'm starting to use QGis 1.8.0. I have a raster topographic map, i.e. white background and black contour lines, houses, roads and so on. I want to make transparent the white background, so if I ...
6
votes
1answer
77 views

Showing density of overlapping features via transparency in ArcMap?

Below is a famous map produced by the Facebook team, which shows the connections between their users. Where there are multiple overlapping features, the lines show more brightly, giving a clear ...
6
votes
1answer
198 views

Both-sided transparency in ArcScene for extruded features

I'd like to extrude my polylines and make them transparent, but from both sides. As you can see below, the transparency works only on one side. I think it's something with the side-orientation. I can ...
5
votes
3answers
2k views

How to create transparent text?

I am trying to insert a watermark into a map using ArcGIS. As you can see from the screenshot, I have the text in place, although I need to make the text transparent (e.g. 50% transparency). I used "...
5
votes
4answers
178 views

ArcGIS 10.3: Insert rotated image without background

How can I insert this image into an mxd so the white background doesn't show up? I've tried using photoshop to delete the background and save it as a format that supports transparent backgrounds (gif ...
5
votes
3answers
2k views

How to change layer transparency without changing border lines?

I have a raster image of elevations. I have added a vector shapefile that contains local political divisions. I want to keep the elevation colors, but I want to keep the black lines representing the ...
5
votes
2answers
11k views

Creating transparent marker/symbol in ArcGIS Desktop?

How can I create a transparent marker/symbol in ArcGIS Desktop 10? I am trying to do this by setting up the transparency of the layer, but the markers seem unaffected by this change. Any ideas?
4
votes
3answers
2k views

Transparency for PDFs in Arc

Trying to generate a vector-based PDF map, which includes transparencies, for quality purposes. However, I'm finding that transparencies get rasterized instead and is lower quality. Is there any ...
4
votes
2answers
323 views

how to create translucent objects in KML?

I've been able to create a KML file that shows a circle on my (Google Earth) map. Now I would like to have a translucent fill on the circle. I'm new to KML, so I'm learning by trial-and-error with ...
4
votes
1answer
235 views

How to change the Transparency of an ILayer?

I've created a function which sets the IColor to a specific ILayer, the value of transparency is between 0 and 255. When I set the value to 0, it gives me a transparent layer which is OK, but when I ...
4
votes
5answers
816 views

How do I add a field that determines the feature's transparency in ArcMap?

I have a feature layer that has points. I want these points to be transparent depending on a field that I've created. Here are references to being able to actually do this (I do understand that these ...
4
votes
1answer
944 views

How to make transparent the background of a WMS layer in Leaflet

I have inserted the following layer from a geoserver in the following Leaflet map : var nexrad = new L.TileLayer.WMS("URL", { layers: 'Wrecks:WrecksGreaterNorthSea', format: 'image/png', ...
4
votes
1answer
68 views

Exporting ArcMap Animation with Transparent Background?

Because ArcMap (10.3.1) only exports animations at a screenshot level (not high resolution, at all), I would like to export a high-res basemap as a standalone image. It would then be ideal to export ...
4
votes
2answers
115 views

IRasterLayer background transparency in C++ with ArcObjects 10.x .NET

I have a georeferenced IRasterLayer which is displaying data from a PPM file with no alpha channel. I am trying to specify a color which should be treated as transparent. In ArcMap it is possible to ...
3
votes
2answers
2k views

Exporting GIS Images with Transparency

I'm trying to export some images of Gulf of Mexico infrastructure that will later be used for non-GIS purposes as overlays onto sea current/weather maps (likely in photoshop). I have no clue how to ...
3
votes
2answers
188 views

When symbolising by category can I make the transparency different for each category? [duplicate]

Normally when I'm making something semi-transparent I edit the transparency in layer properties, but now im trying to make something in the layer (a symbol level) semi transparent. I want to edit the ...
3
votes
1answer
291 views

QGIS: how to set transparency for OSM tiles layer?

I'm using QGIS 2.8.3-Wien in an Ubuntu14. My problem is the following: I'm using the OpenStreetMap tiles to draw maps of some specific regions. The problem is that, for some urban/rural regions, ...
3
votes
1answer
1k views

How do I draw transparent polygons with ArcObjects?

How do I draw transparent polygons in ArcObjects? I mean is it possible to set alpha channel?
3
votes
2answers
4k views

Exporting mxd to image with transparent background from ArcGIS for Desktop?

I cannot get ArcMap 10.0 or 10.1 to "Export Map" to a png or gif with a transparent background -- no matter what I set the background and transparent colors to. Thus, I created the following script, ...
3
votes
2answers
2k views

Transparency in Labels/annotations

I am trying to get my labels transparent. I have converted them into annotation and unable to make the annotations transparent. I have kept annotation in the map. My annotation layer does not appear ...
3
votes
1answer
101 views

Is there free GIS reader that supports transparency of JPEG layers? [closed]

I need to make from my ArcMap layers (which are georeferenced JPEG files) a file that can work on a free and easy to use program. The program needs to be able to open multiple layers so we can put ...
3
votes
1answer
2k views

Exporting Graphic with transparency in layout to PDF using ArcGIS for Desktop?

I'm using ArcGIS 10.1 for Desktop. I am trying to export a pretty simple map to PDF and finding the results are not what I expect. I have inserted two graphics on top in Layout. One is just a ...
3
votes
2answers
816 views

How to surround a clipped raster with transparency? (gdalwarp)

I am trying to perform the following task, but it does not seem to work: I have got a raster file (raster.tif) containing an aerial photo, which I want to clip using a Shape file (clip.shp) that ...
3
votes
1answer
629 views

How to make a transparent background image using r.out.png?

Can the white background of the r.out.png of GRASS be changed to transparent?
2
votes
2answers
7k views

GDAL: Convert specific RGB (GeoTIFF) color to transparent

I have an RGB GeoTIFF file and I want to convert a specific RGB colour to transparent. I would like to use GDAL for doing this, but external Python scripts are also an option (though I haven't learned ...
2
votes
3answers
121 views

QGIS automatically set transparency for (#000000) pixels and save *.qlr

Starting with FME, i convert some hundreds of geotiffs to jpeg2000. The jpeg2000 writer does not support nodata-values. Adding the data to QGIS gives me these black (#000000) areas when rasters are ...
2
votes
1answer
406 views

Setting different transparency for different areas of basemap

I want to print the map of a town and I would like to see the basemap more transparent outside the town area (border polygon) or vice versa. How can I do this? I'm using ArcGIS 10.2.2 for Desktop ...
2
votes
2answers
260 views

Changing the transparency of a raster layer with ArcObjects

I'm trying to do some simple things with the .net framework and ArcObjects, but have little experience with this type of development. I would like to iterate through the layers in a map document and ...
2
votes
1answer
705 views

How to save the Map Canvas as PNG with transparent background programmatically?

I wrote a script to create a big number of heatmaps for a given scenario. I would like to save the result of every heatmap as a png image. I have figuered it out doing it with simple Map Rendering but ...
2
votes
2answers
104 views

How to remove all transparency from all layers?

I am using ArcMap 10.1 and I would like to remove all transparency from all the layers in the map at once.
2
votes
1answer
79 views

How to maintain transparency of a layer during edit sessions?

I'm editing the polygons of one shapefile to more closely match the polygons of another shapefile, essentially tracing the one over the other. I've set the transparency of the layer under edit to 75%, ...
2
votes
3answers
112 views

Making empty parts of aerial imagery transparent

I have a raster file (ECW format) that covers a very large area, however the contents comprise a thin strip of aerial imagery (100m strip centered over the rail line). The bounding box for the image ...
2
votes
1answer
1k views

Show transparency after adding transparent MapBox layer to Open Layers (Openlayers)

I'm new to tile set maps. I am trying to add MapBox layers that I made in TileMill (and have sitting in my MapBox Hosting account) into Open Layers. I have successfully added a non-transparent layer. ...
2
votes
2answers
195 views

Set transparency for raster in QGIS 2.12?

How do I make raster layers (Tiff) transparent? To simply right click and choose properties does not work, I do not get the option of making it transparent when doing that. In the raster menu, there ...
2
votes
2answers
151 views

qgis raster style 'no data value' checkbox is ignored - what's a good workaround?

See bug report filed here: http://hub.qgis.org/issues/10236 Note the initial bug report got 'fixed' but that fix introduced this new error, so the issue was reopened a few days ago. Anyway, it ...
2
votes
1answer
75 views

Transparency control in svg symbols

I am mapping animals and have to display their locations in QGIS (2.12.3, Win7 64) with gender symbols (♂/♀). The outline of the symbols should be rendered in different colors corresponding to the ...
2
votes
1answer
121 views

Displaying black background pixels in RGB raster as transparent (QGIS)

I have the following RGB raster and would like to remove the black background (where R=0, G=0, B=0). I'm using QGIS. The problem is that the raster itself also contains black pixels. Using the option ...
2
votes
1answer
241 views

Change Values of Georeferenced Raster

I am using QGIS to georeference B&W images. I have now done this and would like to set the black surround of the image (as a result of the georeferencing) to transparent but this does not work as ...
2
votes
0answers
16 views

Exporting PNG image with background transparency from ArcGIS Pro

I am attempting to export a PNG image file from ArcGIS Pro 1.2.0 with the background set to transparent. In ArcMap 10.3 this is simple, there was a button for setting the transparent color to white ...
2
votes
0answers
62 views

Using the alpha channel of a GeoTIFF in Geoserver

I want to publish a map as a WMS using GeoServer. The map consists of several layers each of which is a GeoTIFF containing RGB channels and an alpha channel. The images were edited in Photoshop and ...
2
votes
0answers
57 views

Set Default Transparent Pixels in QGIS?

Is there a way to set QGIS to automatically load in images with no data values of (0,0,0) as transparent instead of black? I've looked through the forums, tried saving a .qml file out, looked through ...
2
votes
0answers
346 views

How to render a transparent raster layer on top of one or more vector layers with PyQgis?

I been trying to render a map with a 3 vector layers and one raster layer. The idea is that the raster layer should be on top of the other 3 vector layers. The problem is that even when I add the ...
2
votes
0answers
1k views

Overlaying a mbtiles tile layer produced with tilemill over another layer maintaining transperency

So using leaflet, I'm overlaying my base tile layer as google satellite imagery. I want to overlay another layer (Mbtiles layer) produced with tilemill over this satellite layer. I was successful in ...
1
vote
1answer
102 views

Creating symbology for polygon layer which has opaque outlines but transparent colored fills using ArcGIS for Desktop?

I am working in ArcGIS 10.2 and I run a Basic license. Is there a way to make the outlines/borders of a polygon layer 0% transparent, while having the fields themselves show up at around 20% ...