Logarithmic scale histogram ticks.

This commit is contained in:
Bartosz Taudul 2018-02-28 15:20:52 +01:00
parent e64e7ce3f1
commit 2891ecc526

View File

@ -2776,7 +2776,48 @@ void View::DrawFindZone()
if( m_findZone.logTime )
{
const auto ltmin = log10( tmin );
const auto ltmax = log10( tmax );
const auto start = int( floor( ltmin ) );
const auto end = int( ceil( ltmax ) );
const auto range = ltmax - ltmin;
const auto step = w / range;
auto offset = start - ltmin;
int tw = 0;
int tx = 0;
auto tt = int64_t( pow( 10, start ) );
static const double logticks[] = { log10( 2 ), log10( 3 ), log10( 4 ), log10( 5 ), log10( 6 ), log10( 7 ), log10( 8 ), log10( 9 ) };
for( int i=start; i<=end; i++ )
{
const auto x = ( i - start + offset ) * step;
if( x >= 0 )
{
draw->AddLine( wpos + ImVec2( x, yoff ), wpos + ImVec2( x, yoff + round( ty * 0.5 ) ), 0x66FFFFFF );
if( tw == 0 || x > tx + tw + ty * 1.1 )
{
tx = x;
auto txt = TimeToString( tt );
draw->AddText( wpos + ImVec2( x, yoff + round( ty * 0.5 ) ), 0x66FFFFFF, txt );
tw = ImGui::CalcTextSize( txt ).x;
}
}
for( int j=0; j<8; j++ )
{
const auto xoff = x + logticks[j] * step;
if( xoff >= 0 )
{
draw->AddLine( wpos + ImVec2( xoff, yoff ), wpos + ImVec2( xoff, yoff + round( ty * 0.25 ) ), 0x66FFFFFF );
}
}
tt *= 10;
}
}
else
{