[oe-commits] [openembedded-core] 06/27: pybootchartgui/draw.py: fix drawing of samples not starting at zero

[git at git.openembedded.org]

rpurdie pushed a commit to branch master
in repository openembedded-core.

commit 166f8f9aaa1f01fc6d6a5451f8f06b815c51ffae
Author: Patrick Ohly <patrick.ohly at intel.com>
AuthorDate: Wed Nov 30 10:50:03 2016 +0100

    pybootchartgui/draw.py: fix drawing of samples not starting at zero
    
    The code did not handle x scaling correctly when drawing starts at
    some time larger than zero, i.e. it worked for normal bootchart data,
    but not for the system statistics recorded by buildstats.bbclass.
    
    Signed-off-by: Patrick Ohly <patrick.ohly at intel.com>
    Signed-off-by: Ross Burton <ross.burton at intel.com>
---
 scripts/pybootchartgui/pybootchartgui/draw.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/pybootchartgui/pybootchartgui/draw.py b/scripts/pybootchartgui/pybootchartgui/draw.py
index 2b5907b..925002d 100644
--- a/scripts/pybootchartgui/pybootchartgui/draw.py
+++ b/scripts/pybootchartgui/pybootchartgui/draw.py
@@ -256,7 +256,7 @@ def draw_chart(ctx, color, fill, chart_bounds, data, proc_tree, data_range):
 	# avoid divide by zero
 	if max_y == 0:
 		max_y = 1.0
-	xscale = float (chart_bounds[2]) / max_x
+	xscale = float (chart_bounds[2]) / (max_x - x_shift)
 	# If data_range is given, scale the chart so that the value range in
 	# data_range matches the chart bounds exactly.
 	# Otherwise, scale so that the actual data matches the chart bounds.

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