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Questions tagged [transparency]

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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13
votes
2answers
1k views

Showing transparency slider by default in Layers Panel of QGIS?

Is it possible to have a transparency slider shown by default in the Layer window, i.e. directly after adding a new layer, instead of having it to enable for each layer manually via layer-properties?
12
votes
3answers
15k 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 ...
11
votes
2answers
732 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 ...
11
votes
3answers
2k 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 ...
11
votes
3answers
11k 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 ...
10
votes
2answers
5k views

Setting layer transparency in QGIS 3?

I just switched from QGIS 2.18 to version 3.0.3. In the earlier version, setting layer transparency was easily done with the "transparency" slider from the Layer properties->style tab. See image below:...
9
votes
3answers
8k 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 ...
8
votes
4answers
9k 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 ...
8
votes
4answers
13k 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 ...
7
votes
1answer
3k views

QGIS Raster Layer - Black rectangle appears as background

I have looked at solutions to what seem to be somewhat similar problems but they don't seem to solve my problem. A georeferenced raster layer loads into the correct location in relation to other ...
7
votes
1answer
291 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 ...
6
votes
2answers
12k views

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 ...
6
votes
6answers
11k 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
1answer
3k views

Transparent NoData through WMS in Leaflet

I'm trying to create a Leaflet map with an OpenStreetMap as a basemap and a layer from a GeoServer WMS. I use: var wmsLayer = L.tileLayer.wms('http://localhost:8080/geoserver/workspace/wms', { ...
6
votes
1answer
3k views

Saving Map Canvas as PNG with transparent background programmatically with QGIS?

I wrote a script to create a big number of heat maps for a given scenario. I would like to save the result of every heat map as an PNG image. I have figured it out doing it with simple Map Rendering ...
6
votes
2answers
9k 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, ...
6
votes
2answers
1k 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
2answers
5k 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 ...
6
votes
1answer
341 views

Print Composer with semi-transparent raster but full opacity in legend

I am trying to make a map with a semi-transparent (60%) raster layer overlying an areal photo (raster) base map. This works fine and looks good but when I add a legend to display the values of the ...
6
votes
2answers
2k views

Setting transparency for no data in raster in geoserver

I have a raster published in my geoserver with default raster style as below <NamedLayer> <Name>default_raster</Name> <UserStyle> <!-- Styles can have names, titles and ...
6
votes
1answer
4k views

Make WMS layer background transparent in Leaflet

I have inserted the following layer from a GeoServer WMS in the following Leaflet map : var nexrad = new L.TileLayer.WMS("URL", { layers: 'Wrecks:WrecksGreaterNorthSea', format: 'image/png', ...
6
votes
1answer
634 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 ...
5
votes
2answers
6k 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 ...
5
votes
4answers
6k views

Creating transparent text (watermark) in ArcGIS for Desktop?

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
466 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
2answers
14k 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?
5
votes
1answer
2k views

Adding transparency to Geotiff files

Trying to add some Transparency / Opacity to my GeoTiff raster files for a better rendering option when overlapping. Without transparency With transparency 20% Is there any gdal command to achieve ...
5
votes
1answer
245 views

Maintaining transparency of layer during edit sessions of ArcMap?

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%, ...
5
votes
1answer
436 views

Set raster layer additional no data value with PyQgis

I need a raster layer transparency configured like this: Since I load the layer with PyQgis, the parameters should be set programmatically. For global transparency and transparency band I found that ...
5
votes
2answers
2k views

QGIS raster image transparency, NO DATA value for all raster images?

I'm working with sets of aerial images in QGIS which are geocoded including orientation i.e. rotated. After loading images QGIS draws a black box around each image that extends from the far west to ...
5
votes
3answers
727 views

How Does QGIS Read 'nodata' in 3 Band Raster Data?

I have 3 band GeoTiffs of aerial imagery. The imagery is byte data with values of 0-255 on each band. A 'nodata' value has not been assigned on any band. I am assembling these images using a VRT, ...
4
votes
3answers
3k 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
1answer
915 views

How to set opacity with gdal_rasterize

I am using gdal_rasterize to create a raster of a huge file containing polygons. I managed to generate the raster file with the right color and with the minimum size to tile it after with the ...
4
votes
1answer
93 views

Is it possible to export styled vector data as tif in QGIS without losing transparency?

I have vector point data which I have styled using svg images, see below with the globe in the background: And without: I want to export the image without the globe as a tif with transparency. The ...
4
votes
1answer
535 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
1answer
2k 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?
4
votes
1answer
188 views

Making a transparent globe in ArcGIS Pro

In ArcGIS Pro (2.1), I'm attempting to create a 3D scene in which the underlying basemap is transparent such that I can see through the oceans. I'm trying to get an effect similar to this. Or this: ...
4
votes
5answers
975 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
2answers
1k 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 shapefile (clip.shp) that ...
4
votes
1answer
3k 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 ...
4
votes
1answer
933 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?
4
votes
1answer
982 views

How to add alpha chanel to mbtiles in gdal_translate?

I have lots of 16bit 3-band .tif from one sattelite. In batch processing i've made them 8-bit 4-band (RGBA) with LZW compression (.tif). Now i'm trying using gdal_translate (gdal 2.1 from QGIS 2.16) ...
4
votes
1answer
123 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
255 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
320 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
2k views

How can i set Vector layer Fill as Transparent Fill in QGIS with Python

I want to fill vector layer as transparent fill. I am using following code but it fills it with white colour and inner boundaries for vector layer get hid Code i am using : from PyQt4 import ...
3
votes
1answer
837 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
3answers
608 views

Making empty parts of aerial imagery transparent in QGIS?

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 ...
3
votes
2answers
11k 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 ...
3
votes
1answer
2k views

Create Alpha band in GeoTIFF to make a specific color transparent using GDAL

I have a simple RGB GeoTIFF with a white background and want to add a 4th band, the alpha, so that if R+G+B=255*3, then ALPHA=0 ; i.e. if all three bands have a value of 255, then make the fourth zero ...