This fixes a bug where, when drawing 1/x, a vertical bar would appear on
0, because of false positive cache hits.
Change-Id: I2eafeac5e254c8a556769a41c8edc532db44383a
Instead of being memoized all at once before display, functions values
are now stored at evaluation time. Fixed some quirks with caching
preparation.
Change-Id: I5d212c271c8c41a6dc9074a15c720f0bccf8ac40
The caches used for function values memoization are now stored in
ContinuousFunctionStore : there are now only a fixed number, instead of
one per function. This effectively enables caching only for the first
few functions on screen, while reducing the memory usage.
Change-Id: I2ade091717f73a14a756fe527c773db8e8627be7
Added a default argument to CurveView::drawCurve : a function to initiate the
memoization of continuous functions. The function is implemented in
ContinuousFunctionCache and provided by GraphView. This should be invisible
to other types of curves that rely on CurveView::drawCurve.
Change-Id: I59aa55d67154b6d4bf9614b7ed87c48408773d86
When evaluating a ContinuousFunction for a float value, the function
will first try to ask its cache (if it has been filled beforehand).
Change-Id: I519d2d3dcf344ba63e30a0f011db2306c7141315
ContinuousFunction now has an attribute of type ContinuousFunctionCache,
implementing methods to store and retrieve 320 float values, in order to
speed up function display in Graph.
Change-Id: I6f7ccdf3ae3c6dd8b08b93d786c8d0be7aa4dee8
Method InteractiveCurveViewRange::panToMakePointVisible now moves the
range of a whole number of pixels when panning horizontally. This allows
the cache of cartesian functions not to be invalidated.
Change-Id: Idb9904fef134dd13458e1f2287b0fe5145e8aec7
It appeared that without the packed keyword, the compiler did not handle
access to unaligned record data members, which leads to crashes on the
device.
Change-Id: I401f075e7f62458a4733baa8d81983d4be34b730
Add the possibility to use a double-typed evaluator when tracing a
curve, useful when errors caused by float approximation mess with the
drawing.
Change-Id: I3ab410deec4823149239b0a26b1885fd2a493226
This fixes the following bug: add the sequence, u(n)=2^n. On the graph,
go to "sum of terms" and try to sum terms from 0 to 18 by moving the
cursor. It hangs.
So it does not overflow the scrolled view. Fixed for the language
controllers (on boarding app and settings), one value was changed from a
magic 14 to Metric::CommonTopMargin = 15, it did not seem to break
anything.
