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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.

2
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0answers
21 views

Setting transparent to color for raster layer using ArcMap?

I'm working on a map where I'm overlaying a topographic map on a hillshade map (from ALS data). With the right levels of transparency, those maps tend to be the best base for all kinds of stuff. ...
1
vote
1answer
34 views

How to set layer transparency QGIS C++ API 2.14?

I want to set transparency for already loaded layer by taking it from canvas QgsVectorLayer *myLayer = mpMapcanvas.layer(0); myLayer.setLayerTransparency(50); myLayer.triggerRepaint(); but get an ...
0
votes
2answers
78 views

How to convert a .tif file in which transparency is implicit into tiles with transparency?

Reproducible example with QGIS: Download this file: https://github.com/npct/pct-lsoa-vis/releases/download/0.0.1/dutch_slc-10m-merge2-test.tif Open it in QGIS, open the Layer Properties Window, and ...
2
votes
1answer
53 views

Make color transparent

I've downloaded some maps from copernicus, e.g. this map: http://marine.copernicus.eu/services-portfolio/access-to-products/?option=com_csw&view=details&product_id=...
2
votes
2answers
23 views

Borders appear when reducing the global opacity of multiple raster images in QGIS 3.2.3

I want to reduce the opacity of multiple raster images and when I use the global opacity slider to do so, black borders appear between my images. I would want to eliminate these borders.
0
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0answers
45 views

Transparent color settings in ArcMap?

I would like to know are there any (relatively) easy options to adjust color transparency (alpha value) in ArcMap (any version, any license)? I think that's easy to do in ArcGIS Pro because, as you ...
2
votes
1answer
218 views

Does JPEG 2000 (JP2) support transparency when created?

I haven't been able to find any resources that can provide if in JPEG 2000 (JP2) transparency can be "built-in".
1
vote
2answers
76 views

Adjusting Transparency of Labels on ArcMap?

I am pretty new to GIS, and I am trying to figure out how to adjust the transparency of my labels. I know you have to convert the labels to annotations, but I can't seem to do that. I right click ...
1
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0answers
241 views

Google Earth transparent weather KML file overlay

I am unable to make any of the weather overlays from the website below transparent/opaque once they are loaded into Google Earth. I have attempted to modify the KML file directly by using the ...
2
votes
1answer
170 views

QGIS: Is it possible to merge two stacked raster layers keeping color rendering and transparency?

Extremely new to QGIS and was hoping to merge 2 layers and maintain an "overlay" keeping layer transparency and color rendering? I seem to loose the top layers layer properties when merging and it ...
1
vote
0answers
28 views

Problem with overlapping transparency

I am making an Android app that has bathymetric lake data on a google map. I am new to GIS work. I get this info from the state of nebraska as an already formatted kml file. In the file they simply ...
0
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0answers
15 views

How to export image with several transparency rules defined with another raster layer using python ?

I would like to export an image with several transparency levels defined in an other raster file but I have no idea on how to proceed using Python ? In other words, and with an example from qgis: on ...
1
vote
1answer
240 views

Setting multiple colors transparent in raster map in ArcMap?

I have an aerial scene in jpeg2000 Format in which I would like the black and white areas to be transparent: In QGIS I can set transparent pixels in the layer properties by simply adding colors ...
1
vote
0answers
60 views

Combine two raster maps with transparency

I have two maps in geotiff format for exactly the same area with exactly the same geoinformation. The first one is a real land map, the second one is a satellite picture with clouds (rgba where alpha ...
1
vote
0answers
46 views

Trying to deal with pure whites, and transparency of orthomosaic in MapInfo

I'm hoping to deal with this using the raster calculator in QGIS. But, here's my issue (and I'm a pretty novice GIS user); when you bring a raster image into MI, it turns all the null ("no data") ...
10
votes
2answers
3k 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:...
0
votes
1answer
43 views

Setting baselayer transparency in QGIS? [closed]

In arcgis we can set baselayer transparency according to use how to do same in qgis
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0answers
100 views

Is a TIFF with a 1-byte/px band and RGBA(?) palette and a 1-byte/px Alpha band valid?

I have a process (see how to preserve color-interpretation when merging TIFFs and adding alpha band) which produces a TIFFs (download example image1 17.6 MB) with the following gdalinfo output: ...
4
votes
1answer
161 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: ...
2
votes
1answer
237 views

Understanding raster custom transparency options (making null data 100% transparent) in QGIS?

I have a raster with a large null area (see the solid black area in the image below). The "Band 1" value throughout this null area is -3.402823e+38. I'm trying to make sense of the result of my ...
0
votes
1answer
144 views

How to make black areas tranparent in GeoWebCache when using Geoserver to cache multi band imagery?

I am using Geoserver to cache 4 band (RGB,Alpha) satellite imagery. The native projection of the imagery is NAD83 and I want them in WGS84, when I do the reprojection,using Arcmap, depending on the ...
1
vote
1answer
170 views

Setting transparency for all layers in a data frame in ArcMap using ArcPy?

Using ArcMap 10.6, I've tried the following code from a previous post and get an error or it executes but does nothing. Here is the code and error I receive: Code mxd = arcpy.mapping.MapDocument ("...
2
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0answers
70 views

How to use FeatureLayer's opacity settings?

I'm pretty new to GIS development and I'm trying to load a FeatureLayer that has opacity set (layer is outlined areas that are color-filled and translucent). However, when the layer is displayed in my ...
2
votes
0answers
41 views

Making darkness/intensity of overlapping buffers additive? [closed]

I don't know much about GIS, but I want to create some maps that show a particular thing. Specifically, I have a shapefile with several hundred points and I want to create a standard sized buffer ...
1
vote
1answer
78 views

Inconsistent export of transparent layers

I have a map and an inset map. The content of the inset map's data frame is a direct copy and paste of the content of the main map. Both layers have (in order from bottom to top) a base map layer, a ...
1
vote
0answers
198 views

Imagemosaic no-data pixels problem transparency [closed]

I'm trying to display imagemosaic where image are irregular and near each other. Imagemosaic are displayed with a SLD Images overlap and no transparency is applied When publish imagemosaic, I set ...
2
votes
0answers
239 views

Transparency not working right in GeoServer layer group

I have two image mosaic layers of geotiffs. One contains aerial photos, the other contains rasterized vector data, meant as an overlay. Creating a layer group of these two produces an unpleasant ...
0
votes
0answers
658 views

Adding alpha band to a TIFF image drastically increases its filesize? [duplicate]

I'm using gdalwarp -dstalpha src.tif dst.tif to add alpha channel to an 8-bit unsigned image with 3 bands. The initial size of the image is 300 mb, but adding an alpha band increases it to 1980 mb, ...
2
votes
3answers
337 views

Geotiffs on Geoserver - Alpha?

I'm having a hard time dealing with geotiff images on a geoserver: I can't seem to get rid of the black 'no data' background around my geotiff image (a map area with a transparent background). ...
2
votes
2answers
308 views

Can transparency on symbols be set within symbology, or only on the whole layer, in ArcGIS Pro?

I can see how to vary transparency of a whole layer, and also how to vary transparency by attribute. Assuming that I have set my layer symbology to use Unique Values (e.g., different point colors ...
0
votes
1answer
62 views

Transparency in stacked imagemosaics coverages

I'm using geoserver to stack several raster images that have different ELEVATION parameter (each ELEVATION "number" is a different layer so to speak). This raster images are 16-bit one channel ...
1
vote
1answer
274 views

Set transparent raster values with Python

I have loaded a few raster layers in QGIS 2.18. I select a few of them. Next, I run the script: The first option #Change properties selected layers selectedLayers = iface.legendInterface()....
3
votes
1answer
1k 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 ...
2
votes
1answer
260 views

Geoserver &transparent=true equivalent with SLD?

I have some polygons (country borders) and using the query parameter "transparent=true" in my request, I can see what is behind the layer, where no border is. That is great! On the other hand, I have ...
4
votes
1answer
89 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 ...
5
votes
3answers
587 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, ...
1
vote
1answer
326 views

Removing black region in published ECW file in GeoServer?

I had published an ECW file in geoserver 2.11.2 with SLD generated from QGIS. After publishing the layer i could see some black region in layers preview with the SLD generated from QGIS as below. This ...
6
votes
1answer
262 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 ...
-1
votes
1answer
481 views

Exporting map with transparent background to png or jpg? [duplicate]

Is there any possible way to export a map from Arcmap 10.5 without the white background? I need to insert the map in a dashboard with blue background and i only need the outline of the layer not the ...
1
vote
1answer
57 views

Want L.OpacityControls to activate after selecting an overlayLayer

Edited to show working code. Although not working 100% and it involves some ugly workarounds which I assume are fixable. Original problem: I'm using L.control.layers to display a selection of layers. ...
1
vote
1answer
323 views

How to make Openstreet Map transparent now;

I have a detailed DTM of my region and i want to overlay Openstreet Map with transparency. Is this possible and how; I work with Openlayer3
0
votes
0answers
74 views

Setting transparency of feature class in ModelBuilder in ArcMap?

I've made a model which yields an output feature class using ModelBuilder in ArcMap 10.4 I can set the symbology for the output layer by specifying a layer file. Is there any way I can set the ...
6
votes
1answer
2k 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 ...
1
vote
1answer
938 views

Setting transparency for layer in ArcPy?

I have a blank map. And I have a shapefile. I would like to add the shapefile to the map document, change its colour (which I figured out using @AlexTereshenkov's answer to Adding a layer with ...
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?
5
votes
1answer
339 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 ...
0
votes
0answers
153 views

Adjust polygon fill transparency via ArcGIS cartographic representations?

This is my first experience with ArcGIS representations (10.3.1, advanced). I would like to adjust polygon fill transparency by editing the representation (via Layer Properties>Symbology>...
3
votes
1answer
155 views

Layer group actions (e.g. transparency control)

I know this question has been asked already... long time ago, though. When loading a large set of raster data and grouping them in QGIS i miss the opportunity to set basic properties for that group, ...
6
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 ...
1
vote
0answers
78 views

Adding transparency to grayscale image using GDAL? [duplicate]

I have some binary mask image with 255 and 0 values and I want 0 values become transparent. How can I do this? Seems it work, but I'm not sure if it the best method: gdal_translate -a_nodata 0 -of ...