How to display PNG to container with transparent background ?

MathieuVILLEMONT1 — Wed, 12 Feb 2014 12:16:39 GMT

Hi,

I'm trying to incorporate a PNG image to a container.
This image has a transparent background but when I add it to the container it becomes white. Any idea what can do such thing ?

My code is looking something like this :

IPageLayout pageLayout = ((MapServer)mapserver).getPageLayout();
IGraphicsContainer container = (IGraphicsContainer) pageLayout;

PngPictureElement pngPicElem = (PngPictureElement) this.currentRequestServerContext.createObject(PngPictureElement.getClsid());
pngPicElem.importPictureFromFile(imgResult.getURL());

container.addElement(pngPicElem, 0);

I have tried to manually set the background of my element but with no success :

IColor color = (IColor) (this.currentRequestServerContext.createObject(RgbColor.getClsid()));
color.setTransparency((byte) 0);
color.setRGB(0xFF0000);
          
SymbolBackground symbBg = (SymbolBackground) this.currentRequestServerContext.createObject(SymbolBackground.getClsid());
symbBg.setColor(color);
pngPicElem.setBackground(symbBg);

Thank you.

N.B. I'm using Java ArcObjects SDK on ArcGIS Server 10

Re: How to display PNG to container with transparent background ?

DuncanHornby — Wed, 19 Feb 2014 13:57:48 GMT

Transparency may not be supported, look here.

Re: How to display PNG to container with transparent background ?

MathieuVILLEMONT1 — Wed, 12 Mar 2014 15:18:29 GMT

Indeed 😞

Thanks.

topic How to display PNG to container with transparent background ? in ArcObjects SDK Questions

How to display PNG to container with transparent background ?

Re: How to display PNG to container with transparent background ?

Re: How to display PNG to container with transparent background ?