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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56 views

QGIS geo referencing - black background transparency

I georeferenced a raster file and ended up with a black background (exact 000000) The raster file contains a lot of black, so setting black to be a transparent color is not a good solution since I ...
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1answer
35 views

QGIS 3.4 set transparency only for some layers below

I‘m working on a geomorphological map of a river and its sourroundings. As a base I have a topographic map and a DEM for the pre-mapping. The topographic map is not accurate enough in the river gulley,...
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Displaying rendered layers in 3D Maps in QGIS 3.8.x with variable transparency/opacity

I am looking at using QGIS to help facilitate conversations/do some thinking in 3D. I have tried both QGis2threejs and the native 3D Map available in QGIS 3.x and both have their strengths. The ...
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1answer
25 views

ArcScene transparency per feature

I am working with some data that needs to be visualized in different transparencies levels. I know how to do it in ArcMap: Symobology --> Advanced --> Transparency. Now I am working a 3D project and I ...
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2answers
1k 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 ...
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1answer
46 views

Exporting Transparent Background from QGIS?

I have QGIS version 3.4.3 which does not have print composer. I have a series of lines/tracks/boundaries, etc that are in a layer. I am trying to export that layer with a transparent background for ...
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1answer
64 views

Making heat map transparent in QGIS?

I am still new to QGIS. I have seen several tutorials but they seem to be concerned with earlier versions. The problem I have is that my heat map obscured any map beneath. I can see why this is, the ...
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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', ...
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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 ...
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1answer
49 views

QGIS transparency as 4th input layer

I have a file that contains four rows. The first row indicates the longitude, the second row indicates the latitude, the third row indicates the colour of a specific longitude and latitude and the ...
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1answer
85 views

GeoServer polygon transparency (SLD style file)

I am trying to add transparency to a set of polygons (city bounds) within a .sld style file for OSM. Please see below: As you can see the city bounds are overlapping Montana State University. My ...
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0answers
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CentOS 7, Mapnik, and Tilestache: Seems like image assets are ignored by Mapnik's point/pattern symbolizers

[Update 6.6.2019] Ok...new detail. I checked a different Apache error log and discovered that it's littered with these errors, generically corresponding to.. failed to allocate png_ptr Actual ...
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2answers
109 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 ...
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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 ...
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1answer
375 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 ...
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1answer
406 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 ...
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0answers
35 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. ...
2
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1answer
90 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=...
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1answer
50 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 ...
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1answer
301 views

Make background color transparent in MapTiler?

I have MapTiler 5.0.3 pro, and hundreds of 8-bit per band .tiff files with transparent channel Alpha. After batch conversion: "C:\Program Files\Maptiler Pro\maptiler.exe" -f png -nodata 0 0 0 -zoom ...
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3answers
607 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 ...
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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.
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215 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 ...
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1answer
300 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 ...
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1answer
873 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".
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1answer
408 views

QGIS heatmap classification and symbology?

I want to create a heatmap that doesn't show raster cells that have the value 0. I have 5 classes of which the 0 values have no colour (transparent). Now values between 0 and the first value (124.66......
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0answers
574 views

Make “Nodata” transparent in raster - Mapfile/Mapserver

I have a raster and I'm trying to make it display in Openlayers2, using Mapserver 7.0 in backend. My problem is, I think, that because the online map is not the same projection as my data, Mapserver (...
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2answers
205 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 ...
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1answer
66 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 ...
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0answers
415 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 ...
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0answers
56 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 ...
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1answer
739 views

A nice display of hillshade and my geologic map

i want to create a nice hillshade map covered by a grid or RGB map, with similar colour results in ArcMap like this: Is there a way to achieve this in ArcGis without transparency settings which ...
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0answers
78 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 ...
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0answers
52 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") ...
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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:...
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1answer
55 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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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 ...
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0answers
135 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: ...
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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: ...
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1answer
196 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 ...
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1answer
245 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 ("...
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0answers
106 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 ...
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0answers
51 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 ...
6
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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 ...
1
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1answer
110 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 ...
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0answers
240 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
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1answer
258 views

Making thematic layer 50% translucent in MapBasic?

I'm trying to make this enhancement to an old program written by another author. I was able to make the layer translucent prior to Shade Window command, but its not working. Here is the code: Add Map ...
2
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0answers
295 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 ...
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0answers
928 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, ...
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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 ...