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Change in behavior of Marker
from United States  [60 posts]
4 years
I use Mosaic to capture the video from my rovers and to display data on their current status. There are two 'windows' with the top showing the data and the bottom the video. The data display window is created using a Marker.

In version 2.50.17 the Marker module creates an empty, black image when the "Revert to" field is left blank. This is ideal for displaying the data.

In version 2.56.28 using the same robo file the Marker displays the current image.

I assume I was exploiting a bug and this was not meant as a feature. But if you want to add the behavior back I will not complain.

Otherwise, how can I create an empty black image with minimal cost?
program.robo
Steven Gentner from United States  [1370 posts] 4 years
Rud,

The behavior was more undefined than a bug. For that capability, I'd recommend using the Resize_Canvas module as that will allow you to set a specific size too. It was created for these sorts of screen clearing needs.

STeven.

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