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Messages - lazyhd

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Discussion - EVE / ESD 4.5 - Zoom, Chart
« on: May 13, 2019, 01:37:59 PM »

We implemented EVE FT813 in a new design and I am now building the UI. I tried to find the answers for the below on my own but reached a dead end.
Any help is appreciated

Given that my touch controller supports multitouch, how can I achieve pinch to zoom ? Is it doable inside ESD ? If not any reference to doing it by code ?

I have a chart I want to draw, the chart has 100,000 points on it. Should I reduce the number of points on the host (by averaging or otherwise) in order to fit on the screen's 800px resolution ?
What is the best way to draw this graph ? Should I send the coordinates of each of the points one by one ?
Should I recalculate the graph vertices on the host when the user zoom in or out ?


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