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4
votes
0answers
22 views

IRasterLayer background transparency in C++ with ArcObjects 10.x .NET

I have a georeferenced IRasterLayer which is displaying data with no alpha channel. I am trying to specify a color which should be treated as transparent. In ArcMap it is possible to set a specific ...
0
votes
0answers
20 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 ...
0
votes
0answers
31 views

GeoExt registerRadio problem

Can someone please help me with this error I have in GeoExt: I've used this code http://geoext.org/tutorials/layertree-tutorial.html / "Layer Nodes with Additional Radio Buttons" But the page is ...
1
vote
1answer
21 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
19 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.
0
votes
0answers
24 views

CartoCSS: raster custom transparency color value?

In QGIS (and probably other GIS tools) you can style a raster layer such that certain pixel color value(s) will be rendered as transparent. In QGIS 2.6, this can be set in Layer Properties -> ...
2
votes
2answers
66 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
49 views

set the transparency layer group with Python

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
42 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
128 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
23 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
97 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
193 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
79 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
94 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
87 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
42 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 ...
1
vote
2answers
482 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 ...
3
votes
1answer
385 views

How to make transparent the background of a WMS layer in Leaflet

I have inserted the following layer from a geoserver in the following Leaflet map : var nexrad = new L.TileLayer.WMS("URL", { layers: 'Wrecks:WrecksGreaterNorthSea', format: 'image/png', ...
3
votes
0answers
101 views

Both-sided transparency in ArcScene for extruded features

I'd like to extrude my polylines and make them transparent, but from both sides. As you can see below, the transparency works only on one side. I think it's something with the side-orientation. I can ...
1
vote
1answer
109 views

transparency in pie charts

I was able to make my pie charts in one mxd transparent, which I prefer, but I cannot replicate it. When I try to look it up it seems pie charts cant be made transparent. they are two different layers ...
4
votes
2answers
736 views

How to create transparent text?

I am trying to insert a watermark into a map using ArcGIS. As you can see from the screenshot, I have the text in place, although I need to make the text transparent (e.g. 50% transparency). I used ...
1
vote
1answer
160 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 ...
4
votes
1answer
118 views

How to change the Transparency of an ILayer?

I've created a function which sets the IColor to a specific ILayer, the value of transparency is between 0 and 255. When I set the value to 0, it gives me a transparent layer which is OK, but when I ...
0
votes
0answers
58 views

How to avoid random transparent pixels in georeferenced grayscale raster images?

I'm in the process of georeferencing some old black and white aerial pictures from 1990 in QGIS 2.4. So far, this is business as usual, no problems. Of course I get the usual black triangles, because ...
0
votes
1answer
432 views

Overlapping transparent polygons won't darken

A client of ours wanted a map showing the 5-mile and 10-mile radius around business locations today and specifically requested that the overlapping transparent buffer radii grow darker with each other ...
2
votes
2answers
86 views

qgis raster style 'no data value' checkbox is ignored - what's a good workaround?

See bug report filed here: http://hub.qgis.org/issues/10236 Note the initial bug report got 'fixed' but that fix introduced this new error, so the issue was reopened a few days ago. Anyway, it ...
1
vote
0answers
107 views

Gdal_translate and transparent rasters in PDF

I am trying to make an application that creates geospatial pdf's from my website, but I am encountering problems with Gdal_translate and transparency of rasters. The setup that I am working up ...
3
votes
2answers
134 views

When symbolising by category can I make the transparency different for each category? [duplicate]

Normally when I'm making something semi-transparent I edit the transparency in layer properties, but now im trying to make something in the layer (a symbol level) semi transparent. I want to edit the ...
1
vote
0answers
79 views

How to prevent transparent borders (collars) of a tif wipe out overlapping regions of adjecent tif while using gdalbuildvrt

I have a set of Geotifs that have got transparent borders (collars) of irregular shapes & dimensions around them. First I created a VRT over this set of Geotifs through gdalbuildvrt. Then I ...
10
votes
2answers
3k views

How to create a transparent box in the map layout?

Is there a way to create a transparent box in the ArcGIS layout view similar to the one in the screenshot? I have tried without success adding a transparent box by inserting a neatline, adding a new ...
0
votes
1answer
453 views

MapServer - Show Polygon Layer with non-transparent border and transparent background

In MapServer, I want to show a polygon WMS layer (watersheds). I want to show the boundaries (outlines) of the polygons as a non-transparent thick line. And I want to show the inside (fill) of the ...
1
vote
0answers
41 views

Set Default Transparent Pixels in QGIS?

Is there a way to set QGIS to automatically load in images with no data values of (0,0,0) as transparent instead of black? I've looked through the forums, tried saving a .qml file out, looked through ...
3
votes
1answer
96 views

Is there free GIS reader that supports transparency of JPEG layers? [closed]

I need to make from my ArcMap layers (which are georeferenced JPEG files) a file that can work on a free and easy to use program. The program needs to be able to open multiple layers so we can put ...
1
vote
1answer
1k views

How to make background of EMF symbol transparent in ArcGIS? [duplicate]

I have been sent a collection of PNG and SVG images with which I should symbolize my points in ArcGIS 10.0. Unfortunately ArcGIS 10.0 doesn´t support PNG when symbolizing points, so I have converted ...
4
votes
2answers
565 views

How to set the transparency for multiple layers or add a global transparancy preference?

How can I set the transparency to 27 % for all 245 layers in QGIS? The only way I know of is by right clicking on the layer name, selecting Properties, then Transparency and then moving the ...
1
vote
0answers
58 views

QGIS 2.01 - raster transparency not working properly

I have loaded a color raster image (aerial orthoimagery) into a QGIS project. The layer is visible but very transparent (in the enclosed image the vector polygons are below the imagery), but when I ...
1
vote
2answers
387 views

Replace google map MARKER with HTML element

I want to add a custom HTML element (that can become transparent dynamically) instead of a marker. Basically my html object would be a cirle (or rounded pin) with a picture of users in the middle. ...
0
votes
1answer
337 views

How to control opacity for kmz files in google maps api

I need to load several kmz files at one time via Google Maps API, and want to control the opacity for some of the kmz files. Is there a way to do it? I checked ...
2
votes
1answer
728 views

How to change layer transparency without changing border lines?

I have a raster image of elevations. I have added a vector shapefile that contains local political divisions. I want to keep the elevation colors, but I want to keep the black lines representing the ...
3
votes
1answer
593 views

How do I draw transparent polygons with ArcObjects?

How do I draw transparent polygons in ArcObjects? I mean is it possible to set alpha channel?
3
votes
2answers
916 views

Transparency in Labels/annotations

I am trying to get my labels transparent. I have converted them into annotation and unable to make the annotations transparent. I have kept annotation in the map. My annotation layer does not appear ...
1
vote
1answer
158 views

How to set opacity for GRASS layers using command line?

In the process of learning GRASS, I am finding that I can learn many of the command-line methods that I need for scripting tasks from using the wxGUI, as it conveniently shows most of the underlying ...
0
votes
1answer
98 views

How to set partial transparency for GRASS layer?

I am trying to style layers in a GRASS monitor such that they are partially transparent. I'm guessing that there's a module for that (d.shadedmap seems close), but I haven't found it. I need a ...
2
votes
1answer
210 views

Change Values of Georeferenced Raster

I am using QGIS to georeference B&W images. I have now done this and would like to set the black surround of the image (as a result of the georeferencing) to transparent but this does not work as ...
2
votes
0answers
262 views

How to render a transparent raster layer on top of one or more vector layers with PyQgis?

I been trying to render a map with a 3 vector layers and one raster layer. The idea is that the raster layer should be on top of the other 3 vector layers. The problem is that even when I add the ...
0
votes
2answers
556 views

In ArcMap how do I print to an image (jpg or pdf) with a transparent background?

I am trying to print a contour shapefile to an image (jpg) with a transparent background instead of white. What I want to do is add this into powerpoint as a layer over the top of a basemap so I can ...
3
votes
1answer
2k views

Exporting Graphic with transparency in layout to PDF using ArcGIS for Desktop?

I'm using ArcGIS 10.1 for Desktop. I am trying to export a pretty simple map to PDF and finding the results are not what I expect. I have inserted two graphics on top in Layout. One is just a ...
0
votes
0answers
81 views

QGIS: “No data” raster value for missing rows conflicts with data?

I’m having a problem with specifying “no data” in a raster dataset in QGIS 1.8.0-Lisboa. QGIS does fine in interpreting pixels I don’t have rows for as “no data” if I set Layer Properties -> ...
1
vote
2answers
99 views

How do I adjust transparency on heatmap so that I can see background raster map? QGIS 1.8.0

I have created a raster heatmap for the first time, but I cant seem to adjust the transparency settings to let me see another background OS raster map beneath it. I have attempted to swap the ...