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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Change opacity of the layer with range slider
I want to change the opacity of the layer with a range slider (input type="range") when scrolling
here is my layer code in main.js:
const UnTiled = new ol.layer.Image({
opacity:0....
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QGIS - Layer Rendering Opacity not being kept when exporting atlas
I have changed the layer opacity of a polygon layer to 50% (works in both project and layout views) but when I regenerate and export an atlas, those polygons are at 100% opacity again. Is there an ...
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QGIS: multiplying of symbology transparency
In order to export partly transparent symbology to PDF in QGIS as vectors, the symbology itself needs to have transparency – if the whole layer is sat to be transparent, the symbology gets rasterized.
...
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Masking dynamic leader lines for pie charts in QGIS
I am trying to duplicate
the example in this post Moving Pie Chart in QGIS and creating leader line with some modifications. I'm trying to combine this with transparency and I'd like to mask off the ...
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Apply transparency on a WFS layer (PyQGIS)
I'm trying to make a wfs layer transparent, but it gives me a mistake, but I can't solve it until now.
This is my code:
uri ='http://gstore.unm.edu/apps/rgis/datasets/6ca5428a-a78c-4c82-8120-...
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Shapefile has feature that I cannot edit on QGIS 3.10.13 on Windows 10
I am editing a map with multiple layers. The project includes a shapefile for buildings that has numerous rectangles in black with 100% transparency as a single symbol, The layer file is at the top of ...
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OpenLayers setting opacity without disappearing the edge that marks it
I'm trying to set the transparency of the polygons on the map. This works and I can save them in the database with this code:
$('#constructii_trasp').on('change', function(){
...
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Setting transparency color in Expression Builder
Using QGIS 3.16, I am trying to set color through expression builder, using #RRGGBBAA format.
The problem, I was using the same color, let's say '#94AFDCff', it should return the same color as '#...
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Visualizing polyline with decreasing opacity towards its ends in QGIS
For a mapping project I am looking for a method how to visualize a polyline where the ends increase in opacity such that it will look like its fades away using QGIS 3.10.10. See the red circle in the ...
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Why are labels visible through a basemap?
I'm working with a custom basemap I created as a vector-tile and published it to AGOL, but I noticed labels are visible through it in both AGOL and ArcGIS Pro. Can anyone explain why this behavior ...
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Split features maintaining ordnance survey map details in QGIS
I'm trying to split a polygon drawn over an ordnance survey map area that represents the total land of a farm, in order to create smaller polygons that represent individual fields. I wish to create ...
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QGIS shortcut to transparency
Is there a shortcut key to increase or decrease layer transparency, or to add the opacity slider to a layer in QGIS?
I couldn't find one in the existing shortcut key list and I tried loading the ...
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Transparency feature on my QGIS 3.10 is Opacity
When adding a raster layer to a vector layer, I am unable to make the top layer transparent. On getting into Layer Panel properties and checking it shows Opacity slider. Adjusting opacity at anything ...
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Transparency for QuickMapServices imagery in QGIS 3
Like 30 minutes ago I changed the transparency on a Google satellite image from QuickMapServices. I did this by just opening properties and there was a slider for transparency. Now, properties just ...
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How to "uncheck" the "No Data Value" box in Transparency on QGIS with Python?
The title question is overly simplistic, but would accomplish what I am looking for. I have generated a clipped *.tif raster using gdal.Warp and a georeferenced satellite image:
OutTile = gdal.Warp(...
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Adjusting transparency of layer in certain areas of map using QGIS
In the following map, I'd like to adjust the transparency of the Delaware River so that it is more opaque in the area directly adjacent to Philadelphia county, and more transparent in the areas ...
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Configure a layer in GeoServer so it is displayed with a transparent background?
I use GeoServer to serve shapefile data as layers, and a program called 'Sitmun' to display them. Sitmun allows for the superposition of several layers. But, since my GeoServer seems to be delivering ...
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How to I mask out the black from a GeoTIFF
New to Google Earth Engine and I'm wondering why my GeoTIFF's come convert the alpha/transparency of the image to black. I have these weird black outlines from my TIFF files.
See Screen shot.
This ...
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Automatically setting standard Raster style when loading raster sets in QGIS?
For my project I work with a lot of raster data sets and when loading the data into QGIS they render with a white background which I would like to see transparent (no-data).
I also worked before with ...
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Default transparency with GeoServer layer groups with overlapping raster layers
I have deployed two pan-sharpened raster from Pleiades imagery covering different areas with an overlap. Individually they are opaque (see here and there) but when inside a layer group (with default ...
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OpenLayers6 TileArcGISRest LAYERS param doesn't allow to modify and transparency of the features
I am trying to modify the transparency of the features ans I don't have a clue about how to do it.
The site https://openlayers.org/en/latest/apidoc/module-ol_source_TileArcGISRest.html refers to ...
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QGIS: "Wikimedia unlabelled layer" opacity
I'm using QGIS and I want to show a section of the basemap "Wikimedia unlabelled layer" (from the OpenLayers plugin) in full colouring.
But even if in the Properties box opacity is set to 100, still ...
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QGIS - problem with transparency
After making transparency of an orthophoto, I can see thin black square lines in the pdf of a layout? Anyone know if you can fix it?
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439
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Setting Opacity Dynamically in fill-opacity
I am trying to use a map I made in Mapbox Studio and data I have locally in js code to change the opacity on different countries on a map.
In my dataLayer, I define the layer as such:
const ...
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Setting proper transparency for MultiLine? [closed]
How can you avoid faulty transparency with overlapping line segments points in styling?
I have one layer consisting of multilines. I use QGIS 3.0+.
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QGIS - Change opacity of heat map in selected boundaries
I've only started using QGIS recently (used MapInfo). I would like to change the opacity of a heat map so that the areas within a political boundary has a different opacity than other areas. Would I ...
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QGIS: separately adjust a polygon layer's fill and boundary opacity?
At 3.10.3, adjusting a polygon layer's opacity affects both the fill and the outer boundary stroke simultaneously, as shown in this screenshot:
I want to separately adjust the fill and boundary ...
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140
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Using QGIS Webmap with Mapbox
Im trying to produce a contour map using QGIS and exporting using Mapbox. The map is rotated 90 degrees in QGIS and it returns to its normal orientation if I use Leaflet. Unfortunately, using the ...
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Font opacity in QGIS [closed]
I am setting this font to be only 30% opaque but the display and printing of the font is not changing. What am I missing?
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Incorrect tiles from a shapefile are generated by mapnik
I used mapnik_node_tile_server to generate tiles from a shapefile created by gdal_contour.
The tile generation function is:
function fetchTile(layer, z, x, y, callback) {
var map = new mapnik.Map(...
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pyqgis: change transparency for cells with value 0
I have a Raster file in which some cells have the value 0 and I would like to use pyqgis make them 100% transparent. I guess I have to use the QgsRasterTransparency class but I have no idea how.
I ...
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542
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GDAL virtual dataset with transparency
I'm trying to create image pyramid of multiple smaller images for GeoServer use. I have done this by first creating virtual dataset with gdalbuildvrt and then with gdal_retile.py.
The problem I'm ...
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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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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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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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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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Change Opacity of Style
Is there any convenient way to change the opacity of a ol.style.Fill or ol.style.Stroke Object?
As far as I understand it, there are 2 ways to define a color with an opacity.
fill.color = [255,0,0,...
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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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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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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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Changing transparency for black background when georeferencing raster
I georeferenced a raster file and ended up with black background (exact 000000)
The raster file contains a lot of blacks, so setting black to be a transparent color is not a good solution since I ...
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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.
...
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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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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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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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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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Opacity Transition Mapbox Fade In
I am facing a problem using the 'fill-opacity-transition' in Mapbox GL JS. Maybe someone has an idea what the mistake could be?
<!DOCTYPE html>
<html>
<head>
<...
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Usage of Custom Transparency band for elevation raster in QGIS 3
I would like to set a raster transparency to represent its elevation, so that the mountain tops are opaque and gradually become transparent toward their foot.
On the Layer Properties > Transparency ...
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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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