Trend graphics on canvas

by Marcelo Barros


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Some months ago, before the cute Energy Profiler application, I created a small Python program for plotting my signal strength called sigwatch. At that time, this program helped me to change to other mobile operator, based on real numbers. I spent some minutes customizing the sampler function and the scale. This way, you can modify this program for watching any variable, plotting it on canvas like a trend graphic with scale in percentage (0 to 100%). Just import sigwatch class and provide your variable limits (minimum and maximum ) and your sampler function.

Source code and sis are available. If you want some examples, take a look at this Forum Nokia article as well.

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