Questions tagged [transparency-opacity]
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.
267 questions
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Diagram overlapping other layers
I have a a diagram and have put it as the last layer in my project file, however it overlaps with my top layer.
Is there any way to make the diagrams underneath the other layers?
I can add a ...
- 101
8
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2
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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 ...
- 3,016
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Changing opacity of map outside feature in OpenLayers 3?
I want to change opacity of map outside feature (which is closed polygon) in OpenLayers 3.
Is it possible?
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Leaflet - Opacity method for L.tileLayer.wms?
I want to use opacity on one of my WMS layers in Leaflet. The documentation has an opacity option for L.tileLayer but not explicitly for L.tileLayer.wms, I only see a transparent option (not supported ...
- 1,765
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Remove black borders when converting GeoTiff to MBTile with gdal_translate
I am using gdal_translate to convert a fairly large geoTiff to MBTiles.
As the geoTiff is reprojected, it is not square anymore in Google Mercator and the parts that are not covered appear black when ...
- 213
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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 ...
- 139
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How to display a line with fading transparency in qgis?
I have a straight line with two vertices, which I'd like to style. I want the style to be a fading line from start to end, so the transparency is gradually increasing from start to the end of the line....
- 893
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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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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) ...
- 421
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QGIS - tips for visualizing three overlapping layers? [closed]
Does anyone have a suggestion on how best to visualize three overlapping years as seen below?
The yellow/brown part is the base background color of the map.
The grey on the top of the screen ...
- 121
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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 ...
- 1,343
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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,b ...
- 4,082
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1
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Set background color and opacity for a WKT layer vector in OpenLayers3
I have this function:
function drawLayer(wktRegion, name,colour = "transparent"){
var format = new ol.format.WKT();
var feature = format.readFeature(wktRegion);
feature.getGeometry()...
- 143
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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 ...
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How to increase Compression Memory for ECW Opacity Builder
I am attempting to build opacity within an ECW file using ECW_Opacity_Builder.exe from APOLLO Essential Utilities 2014, which has worked flawlessly many times before.
When attempting to build opacity ...
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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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2
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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
...
- 4,474
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1
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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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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 ...
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1
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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% ...
- 567
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Exporting map with transparent background in QGIS
I have gone into Composer and specified the page background to be transparent. It still comes out white. Is there a solution?
- 335
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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 ...
- 542
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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 ...
- 1,343
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0
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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 ...
- 320
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3
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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 ...
- 14.9k
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1
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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 ...
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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 ...
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2
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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 ...
- 133
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OpenLayers Get Opacity
I understand how to set opactity to a map layer in OSM but how do you get the opacity?
Perhaps something like
layer.getOpacity()
OpenLayers.Util.getElement('opacity').value = layer.???
I have ...
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0
answers
646
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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 ...
- 21
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0
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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 ...
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1
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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 ...
- 133
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2
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Setting selection color transparent and border color red using PyQGIS
I have a layer with different informations. I want to change the selected polygon color to "Transparent". I am able to achieve that using:
iface.mapCanvas().setSelectionColor(QColor("...
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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 ...
- 143
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1
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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 ...
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2
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618
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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.
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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 ...
- 1,154
2
votes
1
answer
101
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Why QGIS 2.12 "forgets" selection colour opacity settings?
I have few vector layers which I need to edit frequently. I'd like to be able to see through the layer when it's selected. I changed selection colour from both: Project Properties General settings and ...
- 379
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answers
5k
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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 ...
- 21
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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 ...
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Leaflet Opacity Control Using Slider For Bootstrap
I am attempting to use the Slider For Bootstrap to update the opacity of a layer within Leaflet.
The slider also needs to be in a Bootstrap Popup but this part is working.
As per this JSFiddle you ...
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Setting transparency per polygon in shapefile in QGIS
How to set transparency per polygon in a shapefile in QGIS?
For example a polygon with field "value" = 1 should be fully transparent whereas field with field "value" = 0.4 should ...
- 3,355
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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, ...
- 203
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2
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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 ...
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2
answers
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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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votes
2
answers
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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 ...
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1
answer
530
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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 ...
- 213
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votes
1
answer
8k
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SLD fill-opacity not having any effect
I am attempting to draw a WMS layer consisting of multiple polygons of different colours and an opacity of 0.4.
The relevant part of my SLD is
<PolygonSymbolizer>
<Fill>
...
- 383
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vote
1
answer
60
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.
- 11
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votes
2
answers
841
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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 ...
- 1,996