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pythonnetLab/Test/TestMatplotlib.cs at master · yagweb/pythonnetLab · GitHub
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TestMatplotlib.cs
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TestMatplotlib.cs
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using
Python
.
Runtime
;
using
System
;
using
System
.
IO
;
using
System
.
Threading
;
using
System
.
Windows
;
using
System
.
Windows
.
Media
.
Imaging
;
namespace
Test
{
public
class
TestMatplotlib
{
public
static
void
SetUp
(
string
backend
)
{
using
(
Py
.
GIL
(
)
)
{
Numpy
.
Initialize
(
)
;
Matplotlib
.
Initialize
(
backend
)
;
//PythonEngine.Exec("import matplotlib;print(matplotlib.get_backend())");
Console
.
WriteLine
(
Matplotlib
.
get_backend
(
)
)
;
}
}
public
static
void
Plot
(
)
{
using
(
Py
.
GIL
(
)
)
{
dynamic
plt
=
Py
.
Import
(
"matplotlib.pylab"
)
;
dynamic
np
=
Py
.
Import
(
"numpy"
)
;
var
x
=
Numpy
.
NewArray
(
new
double
[
]
{
1.0
,
2.0
,
3.0
,
4.0
,
5.0
,
6.0
}
)
;
var
y
=
np
.
sin
(
x
)
;
//plt.plot(x);
plt
.
figure
(
)
;
//plt.scatter(x, y);
plt
.
show
(
)
;
}
using
(
Py
.
GIL
(
)
)
{
var
scope
=
Py
.
CreateScope
(
)
;
var
np
=
scope
.
Import
(
"numpy"
,
"np"
)
;
var
plt
=
scope
.
Import
(
"matplotlib.pylab"
,
"plt"
)
;
var
x
=
Numpy
.
NewArray
(
new
double
[
]
{
1.0
,
2.0
,
3.0
,
4.0
,
5.0
,
6.0
}
)
;
var
y
=
np
.
sin
(
x
)
;
scope
.
Set
(
"x"
,
x
)
;
scope
.
Set
(
"y"
,
y
)
;
//directly plot
plt
.
plot
(
x
,
y
)
;
plt
.
show
(
)
;
//use python slice grammer
scope
.
Exec
(
"fig = plt.figure()
\n
"
+
"plt.plot(x[1:], y[1:])
\n
"
+
"plt.show()"
)
;
}
}
static
AutoResetEvent
mEvent
=
new
AutoResetEvent
(
false
)
;
public
static
void
PlotInWindow
(
)
{
byte
[
]
plotdata
;
using
(
Py
.
GIL
(
)
)
{
var
scope
=
Py
.
CreateScope
(
)
;
var
np
=
scope
.
Import
(
"numpy"
,
"np"
)
;
var
plt
=
scope
.
Import
(
"matplotlib.pylab"
,
"plt"
)
;
var
x
=
Numpy
.
NewArray
(
new
double
[
]
{
1.0
,
2.0
,
3.0
,
4.0
,
5.0
,
6.0
}
)
;
var
y
=
np
.
sin
(
x
)
;
scope
.
Set
(
"x"
,
x
)
;
scope
.
Set
(
"y"
,
y
)
;
scope
.
Exec
(
"fig = plt.figure()
\n
"
+
"plt.plot(x[1:], y[1:])
\n
"
)
;
var
fig
=
scope
.
Get
(
"fig"
)
;
plotdata
=
Matplotlib
.
SaveFigureToArray
(
fig
,
200
,
"png"
)
;
}
Stream
stream
=
new
MemoryStream
(
plotdata
)
;
Thread
th
=
new
Thread
(
(
)
=>
{
BitmapImage
bitmapImage
=
new
BitmapImage
(
)
;
bitmapImage
.
BeginInit
(
)
;
bitmapImage
.
StreamSource
=
stream
;
bitmapImage
.
EndInit
(
)
;
var
img1
=
new
System
.
Windows
.
Controls
.
Image
(
)
;
img1
.
Source
=
bitmapImage
;
Window
window
=
new
Window
(
)
;
window
.
Content
=
img1
;
window
.
ShowDialog
(
)
;
mEvent
.
Set
(
)
;
}
)
;
th
.
SetApartmentState
(
ApartmentState
.
STA
)
;
th
.
Start
(
)
;
mEvent
.
WaitOne
(
)
;
}
}
}
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