Question about how to show a Camera view and displaying graphics over it

[Don]

I could really use some help on the following:
How can i use the view of the camera onscreen and overlay graphics on that view? I would like to make a sort of 'hud' type overlay on the (constant) camera view but when I use the regular drawline feature within the canvas the line is 'blocked out' by the camera view (which i had expected seeing the information about canvas). I know text is possible with a label (with a transparent background) but I would really like to do more advanced things with the camera view.
btw I've been using basic4android for a few days now and I really, really like it!

 

[admac231]

Try adding another panel on top of the camera panel and put your hud on that, making things transparent as neccessary

 

[Don]

Great idea (why didnt I think of that..) but unfortunately that didnt do the trick. I made one panel for the camera and one for the graphics (which was on top) but the graphics were still blocked out by the camera. Thanks for the idea though!

 

[Erel]

I've just tried this solution and it seems to work fine.
See the red line in this screenshot:

 

[Don]

Thanks fir the help Erel and Admac231,
I guess i've made a mistake somewhere in my code. When i quickly program a new camera and overlay a panel with graphics it also works for me; time to get debugging! Nice how things are so easy to accomplish with basic4android.

update: There seemed to be something wrong with my hud panel in designer. It appeared to be placed 'in' the other panel. When i moved the 'hud panel' the part outside the 'camera panel' disappeared. I removed the panel and made a new one and now everything works! Thanks again

 

[mkvidyashankar]

I tried this example and it is working. but i want to save the line over the image. Not getting any idea ....pl help

 

[klaus]

You can either:
- draw directly onto the camera image
- copy the Panel's Canvas Bitmap on the camera image, with a second Canvas for the camera image.

Best regards.