Making a dynamic chart?

[StingRay]

Hi!

Does somebody know a way to create a round chart like this:

docs_190726a_pie_chart_en.gif

without having 100 frames? (1 per percent)

any other 'elegant' solution for things like this?

thanks

[Simon]

If it is windows only, you could consider the Microsoft Chart Control via activex, or alternatively and for other runtimes I think surface object would be your best bet so you can draw the shapes on to build the chart up.

[StingRay]

Thanks Simon, i know about the Great possibilities On Windows with the power of extensions,
But here i mean for ios runtime.
(I've a Client that needs this Kind of Things in his b2b app)

Paste image to Background with a fastloop could do it (by turning a 1 Percent active), but Thats just One idea

[Danny]

Just a quick shot here but how about rendering a 100 frame animation and using that?

There's plenty online or you could render your own out of any decent 3D software... Oh, I just remembered... there are some on the MMF2 Disc#2 already too!

[StingRay]

thanks, but i still will have the problem to have 100 frames for EVERY unit that is displayed in the chart.

so, taken the example from above, we need 600 frames for the chart (100 per color) - this will take loading times up.
and i think there should be a smarter solution, isnt it?

[Keith]

Why not use the web browser control linking into Google Charts?

https://developers.google.com/chart/

It's not that unreasonable to require connectivity.

[Atrox]

What about rendering an animation of one 360 degree circle in white color. So if you want to display a red pie you could make use of the ink effects and stop the animation when the number of percentage is reached... Know what I mean? You will only have one big circle with animation

[StingRay]

good idea, but the chart is big, and with alpha channel it will take not that low memory, i think.

best would be to stick on a 1 percent frame and rotate it (without saving background). too bad this wont work with fastloop with just one object.

thanks for your suggestions

[StingRay]

yes, hmmm...

the rotate and make backdrop idea is nice, but wont work if you have a nice transparent graphic on top of it...


damned...

[Keith]

The rotation approach most likely would miss pixels along the way and create a moire pattern. Why not a 360 frame animation with RGB coefficient changes for different colors? That should work and would at least create a starting point for a more optimal workaround.