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Elphel
imagej-elphel
Commits
6019c27e
Commit
6019c27e
authored
Mar 25, 2019
by
Oleg Dzhimiev
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added a sub for php script
parent
caedcd37
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escher_pattern.py
src/main/resources/escher_pattern.py
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src/main/resources/escher_pattern.py
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6019c27e
#!/usr/bin/env python3
'''
/**
* @file escher_pattern.py
* @brief escher pattern generator
* @par <b>License</b>:
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
'''
import
matplotlib.pyplot
as
plt
from
matplotlib.backends.backend_pdf
import
PdfPages
import
numpy
as
np
from
matplotlib.patches
import
Arc
from
matplotlib.patches
import
Circle
from
matplotlib.patches
import
Rectangle
from
matplotlib.patches
import
Polygon
from
matplotlib.patches
import
Wedge
import
matplotlib
as
mpl
from
matplotlib
import
collections
from
matplotlib.path
import
Path
import
copy
import
math
'''
requirements:
- matplotlib, version 3.0.3
- BUG?: matplotlib, version 2.0.2 draws a little padding around which is not desired
install:
- sudo pip3 install matplotlib
- sudo apt install python3-tk
'''
class
Escher_Pattern
:
# units are mms but coordinates are in pt to compare with php script
MM2PT
=
72.0
/
25.4
# init
def
__init__
(
self
,
filename
=
"pattern.pdf"
,
width
=
270
,
# width in units
height
=
210
,
# height in units
lpm
=
50
,
# lines per meter
escher
=
2.0
,
# curvature coefficient
rotate
=
5
,
# degrees
units
=
'mm'
,
):
self
.
filename
=
filename
self
.
width
=
int
(
width
*
self
.
MM2PT
)
self
.
height
=
int
(
height
*
self
.
MM2PT
)
self
.
lpm
=
lpm
self
.
escher
=
escher
self
.
angle
=
rotate
self
.
units
=
units
plt
.
autoscale
(
tight
=
True
)
plt
.
axis
(
'off'
)
plt
.
margins
(
0.0
)
self
.
fig
,
self
.
ax
=
plt
.
subplots
()
self
.
ax
.
get_xaxis
()
.
set_visible
(
False
)
self
.
ax
.
get_yaxis
()
.
set_visible
(
False
)
self
.
ax
.
set_aspect
(
'equal'
)
self
.
ax
.
spines
[
'top'
]
.
set_visible
(
False
)
self
.
ax
.
spines
[
'right'
]
.
set_visible
(
False
)
self
.
ax
.
spines
[
'left'
]
.
set_visible
(
False
)
self
.
ax
.
spines
[
'bottom'
]
.
set_visible
(
False
)
self
.
ax
.
set_ylim
([
0
,
self
.
height
])
self
.
ax
.
set_xlim
([
0
,
self
.
width
])
print
(
"init done"
)
# rotate clock-wise
def
rotate
(
self
,
deg
):
t_start
=
self
.
ax
.
transData
t
=
mpl
.
transforms
.
Affine2D
()
.
rotate_deg
(
-
deg
)
t_end
=
t_start
+
t
for
x
in
self
.
ax
.
patches
+
self
.
ax
.
collections
:
x
.
set_transform
(
t_end
)
def
test1
(
self
):
side
=
int
(
500
/
self
.
lpm
*
self
.
MM2PT
)
if
(
self
.
escher
>
0
):
Size
=
side
qSize
=
Size
/
4
hSize
=
Size
/
2
a
=
self
.
escher
*
(
math
.
sqrt
(
2
)
-
1.0
)
r
=
(
a
*
a
+
1
)
/
(
2
*
a
)
*
qSize
r2
=
r
*
r
h
=
math
.
sqrt
(
r2
-
qSize
*
qSize
)
dc
=
2
*
qSize
-
h
halfAngle
=
math
.
degrees
(
math
.
atan
(
qSize
/
h
))
center
=
dc
+
r
tpts
=
[
[
center
-
hSize
,
center
-
hSize
],
[
center
-
Size
+
dc
,
center
-
qSize
],
[
center
-
dc
,
center
+
qSize
],
[
center
-
qSize
,
center
+
Size
-
dc
],
[
center
+
qSize
,
center
+
dc
],
[
center
+
Size
-
dc
,
center
+
qSize
],
[
center
+
dc
,
center
-
qSize
],
[
center
+
qSize
,
center
-
Size
+
dc
],
[
center
-
qSize
,
center
-
dc
]
]
template
=
[
Rectangle
(
tpts
[
0
],
side
,
side
,
facecolor
=
"k"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
1
],
r
,
0
-
halfAngle
,
0
+
halfAngle
,
facecolor
=
"w"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
2
],
r
,
180
-
halfAngle
,
180
+
halfAngle
,
facecolor
=
"k"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
3
],
r
,
270
-
halfAngle
,
270
+
halfAngle
,
facecolor
=
"w"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
4
],
r
,
90
-
halfAngle
,
90
+
halfAngle
,
facecolor
=
"k"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
5
],
r
,
180
-
halfAngle
,
180
+
halfAngle
,
facecolor
=
"w"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
6
],
r
,
0
-
halfAngle
,
0
+
halfAngle
,
facecolor
=
"k"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
7
],
r
,
90
-
halfAngle
,
90
+
halfAngle
,
facecolor
=
"w"
,
linewidth
=
0
,
edgecolor
=
"r"
),
Wedge
(
tpts
[
8
],
r
,
270
-
halfAngle
,
270
+
halfAngle
,
facecolor
=
"k"
,
linewidth
=
0
,
edgecolor
=
"r"
)
]
else
:
tpts
=
[
[
0
,
0
]
]
template
=
[
Rectangle
(
tpts
[
0
],
side
,
side
,
facecolor
=
"k"
,
linewidth
=
0
,
edgecolor
=
"r"
)
]
abs_angle_rad
=
math
.
radians
(
abs
(
self
.
angle
))
extra_w
=
int
(
self
.
height
*
math
.
tan
(
abs_angle_rad
)
/
side
+
1
)
*
side
extra_h
=
int
(
self
.
width
*
math
.
tan
(
abs_angle_rad
)
/
side
+
1
)
*
side
a
=
range
(
-
extra_w
,
self
.
width
+
extra_w
,
side
)
b
=
range
(
-
extra_h
,
self
.
height
+
extra_h
,
side
)
for
x
,
y
in
[(
x
,
y
)
for
x
in
a
for
y
in
b
]:
# both even or both odd
if
(
x
+
y
)
/
side
%
2
==
0
:
for
k
,
v
in
enumerate
(
template
):
vcp
=
copy
.
copy
(
v
)
if
(
type
(
v
)
==
Wedge
):
vcp
.
set_center
((
tpts
[
k
][
0
]
+
x
,
tpts
[
k
][
1
]
+
y
))
elif
(
type
(
v
)
==
Rectangle
):
vcp
.
set_xy
((
tpts
[
k
][
0
]
+
x
,
tpts
[
k
][
1
]
+
y
))
self
.
ax
.
add_patch
(
vcp
)
# now rotate
self
.
rotate
(
self
.
angle
)
# test
def
test
(
self
):
x
=
[
0
,
100
,
0
]
y
=
[
0
,
0
,
100
]
self
.
ax
.
fill
(
x
,
y
)
circ
=
Circle
((
0
,
0
),
0.01
,
color
=
"red"
)
#circ.set_transform(t_end)
self
.
ax
.
add_patch
(
circ
)
circ
=
Circle
((
100
,
0
),
1
,
color
=
"red"
)
#circ.set_transform(t_end)
self
.
ax
.
add_patch
(
circ
)
circ
=
Circle
((
0
,
100
),
1
,
color
=
"red"
)
#circ.set_transform(t_end)
self
.
ax
.
add_patch
(
circ
)
circ
=
Circle
((
50
,
50
),
1
,
color
=
"red"
)
#circ.set_transform(t_end)
self
.
ax
.
add_patch
(
circ
)
# save function
def
save
(
self
):
pp
=
PdfPages
(
self
.
filename
)
self
.
fig
.
tight_layout
()
#plt.show()
self
.
fig
.
savefig
(
pp
,
format
=
'pdf'
,
bbox_inches
=
'tight'
,
pad_inches
=
0
)
pp
.
close
()
if
__name__
==
"__main__"
:
#ep = Escher_Pattern("test.pdf", escher=2.0, lpm=50, rotate=10)
#http://192.168.0.137/escher/escher_pattern.php?PAGE_WIDTH=1524&PAGE_HEIGHT=3048&LPM=2.705449885575893&ROTATE=14.036243467
ep
=
Escher_Pattern
(
"test.pdf"
,
width
=
1524
,
height
=
3048
,
escher
=
2.0
,
lpm
=
2.705449885575893
,
rotate
=
14.036243467
)
ep
.
test1
()
ep
.
save
()
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