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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2
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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 ...
0
votes
2answers
23 views

Transparency to unique value in ArcGIS 10.3

I have this polygon layer and i try to set the transparency to 52% only to the c value: but when i set to 52% transparency, all the values changed: I can copy\paste the polygon and remove a,...
0
votes
0answers
10 views

Setting custom opacity (transparency) level of geotiff with GDAL

I am struggling with a seemingly simple task. I want to create georeferenced image of nicely visualized terrain data like here, but not only display-wise within QGIS, but as an actual file by using ...
0
votes
2answers
36 views

GDAL merge warp has black block can't remove

I have been using the gdal to merger a lot of *.tif files to get one big arear, I always get the blackblocks I tried GDAL merge and GDAL warp but none of them seems working. Does anyone know where ...
0
votes
1answer
31 views

How to make background color transparent in maptiler?

I have maptiler 5.0.3 pro, and hundreds of 8bit per band .tiff files with transparent chanel Alpha. After batch convertion: "C:\Program Files\Maptiler Pro\maptiler.exe" -f png -nodata 0 0 0 -zoom 10 ...
0
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0answers
13 views

Is it possible to serve png32 (with RGB + A) with Mapnik 2.2?

I have four separate rasters, combined into a GDAL VRT. I'm using mapnik 2.2 to export this data via an XML stylesheet that's passed to the python library landez. I'm able to write valid map tiles if ...
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 ...
1
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0answers
29 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 (...
1
vote
1answer
70 views

QGIS 2.14.3: I'm having problems when exporting my map to jpg

I am using QGIS 2.14.3 and I'm having problems when exporting my project to jpg (also when trying to export to pdf...). I have several shapefiles opened, they are basically polygons on a shapefile ...
1
vote
1answer
103 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% ...
5
votes
4answers
179 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 ...
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 ...
1
vote
0answers
20 views

How to unckeck automatically the “No Data Value” predefined on raster background on QGIS 2.14?

I'm trying to import a bunch of rasters, but there is a parameter predefined on the TIFFs, where says that No Data Value should be marked. But I need this unchecked. I opened the metadata, and found ...
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 ...
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 ...
1
vote
1answer
46 views

Is it possible to edit layer transparency in .sld or .qml file for use in QGIS?

Say I have a shapefile with 20 graduated classes that I'm using in QGIS. I want to save the layer style so that I can use it on other shapefiles, but I can't edit the layer transparency without ...
0
votes
0answers
32 views

QgsMapCanvas with semi-transparent layer causes graphic artefacts

I'm trying to set a background image (in my case a google map shot) for QgsMapCanvas with semi-transparent layers upon it. Therefore, I set alpha of background color for canvas to zero and create a ...
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
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 ...
1
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0answers
122 views

OpenLayers add white background to image/png geoserver layer

i created a new wms layer in openlayers. i get the layer from geoserver as image/png and transparent=true. openlayers rotate the raster 30 deg (due to its coordinates - it's fine!) but add white ...
0
votes
0answers
40 views

gdal2tiles transparency error

I'm trying to get transparent pngs by running gdal2tiles.py -p mercator -r average -s EPSG:4326 -z 0-7 -a 0,0,0 -w google iev3.tiff tiles-new I get Warning 1: /var/folders/pq/...
1
vote
1answer
104 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 ...
0
votes
0answers
19 views

Making overlapping raster catalog entries

So I'm working in ArcGIS Desktop 10.1. I have a raster catalog in a gdb that has a few hundred entries with many of them overlapping such that entries that are stacked below another cannot be seen ...
4
votes
2answers
324 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 ...
1
vote
1answer
70 views

Getting transparent graphics in ArcGIS Desktop?

I have a point layer symbolized with a logo I created. I have the layer set to 50% transparency. I would like to manually rearrange these logos by converting these symbols to graphics. Once I ...
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.
1
vote
0answers
64 views

ArcGIS layer transparency Issues

I'm using ArcGIS 10, working on the district boundaries of a country. I need to show certain cycles of a distribution and some of the districts are (partly/completely) covered in each cycle. Is there ...
2
votes
2answers
116 views

How to make the white background of an RGB raster transparent?

I would like to show on my map only the reddish pixels of my raster layer. Said in another way: I would like to transform my white background into transparent background so I can see my other ...
0
votes
0answers
80 views

merge tif file with No data

I have to 2 tiff files, both of file have No data values as in Image 1, when I use gdal_merge to mosaic both images to one image, the No data area turns to black, which I don't want, How to maintain ...
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
1answer
123 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 ...
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, ...
0
votes
2answers
347 views

Pictures with no background or transparent in ArcGIS layout

I would like to add a .jpg, .png or .tiff with a no background. In other words, I want the logo to appear as it was created, without a border or background, to my Layout view. Also is it possible ...
2
votes
1answer
407 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 ...
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 ...
0
votes
0answers
34 views

Transparent layers won't display correctly, but print OK in ArcMap?

Transparent layers are not displaying correctly in ArcMap 10.2 or in exported maps, but they do print OK. They look like this: The weird thing is - the transparent layers displayed fine a few ...
1
vote
1answer
41 views

Prevent Overlapping Features in QGIS from Being Faded

I have multiple layers in QGIS that I've set as transparent so I can see their respective features. However, I would like one layer (showing proportionally sized points) to NOT fade when it overlaps ...
1
vote
1answer
26 views

Setting Transparency in .IMG format

Is there a way for QGIS make just the black value (255,255,255) on an .IMG format file transparency. Right now their transparent option makes the whole image transparent.
2
votes
2answers
261 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 ...
1
vote
1answer
252 views

Setting transparency of layer group with Python in QGIS?

How can I set the transparency for all layers within a group of layers? I assume this will require the use of a FOR loop in the Python Console. Based on How to set the transparency for multiple ...
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%, ...
1
vote
0answers
408 views

Using WMS layer transparency with Geoserver, Openlayers and Drupal?

I am using OpenLayers in Drupal to display Geoserver WMS data. I can get the layer to overly properly, however the raster layer (png) has a white background I cannot remove. I have created a style in ...
0
votes
0answers
34 views

What is the cheapest way to make all objects from GraphicsContainer transparent?

I am changing arcobjects 10.1 project with a lot of legacy code. I need to make all objects transparent on the map. This objects (points, different sectors, polygons, etc) are persisted in ...
1
vote
1answer
379 views

Fading or Removing Boundaries in ArcMap?

I have a dot density map of a county. I need to either fade or remove the tract lines. I can adjust the frame transparency but that's not what I'm after. I'm using ArcGIS 10.2 for Desktop.
2
votes
1answer
707 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
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 ...
0
votes
1answer
191 views

How to make dark gray background on TIF image transparent or white in QGIS [duplicate]

see also: Imported TIF has dark gray background instead of white That question addresses why the TIF imported into QGIS has a dark gray background when the color set is set to 4096 when exported from ...
1
vote
0answers
186 views

Transparency on black/white raster after clipping in QGIS?

I'm new to this forum and QGIS. I'ld really appreciate it if you could help me with my problem, since I couldn't find any solution online but people experiencing the same issue. It seems as if this ...
0
votes
1answer
59 views

creating a new layer based on colour characteristics

I have 14 polygon layers. I have plotted them as transparent layers, so I can get a final layer with 6 different colours, which represent different categories. I want to create a new layer made by the ...
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 ...